Yanmar Lx490, Lx450, Lx410 Operator's Manual

OPERATOR'S MANUAL
COMPACT TRACTOR
Lx410 Lx450 Lx490
Version 1.0
Code No.:0A042-U00400
ENGLISH
Yanmar America Corporation
101 International Pkwy
Adairsville, GA 30103
PRINTED IN U.S.A.
IMPORTANT
Pursuant to California Public Resources Code Section 4442.6 WARNING - Operation of This Equipment May Create Sparks That Can Start Fires Around Dry Vegetation. A Spark Arrestor May be Required. The Operator Should Contact Local Fire Agencies For Laws or Regulations Relating to Fire Prevention Requirements.
1A8250-65390
NOTE
The following decal is applicable only for Lx410 and Lx450.
Operator's Record
Owner's Name
IMPORTANT
Pursuant to California Public Resources
Code Section 4442.6 WARNING - Operation Q f This Equipment May Create Sparks That Can Start Fires Around Dry Vegetation.A Spark Arrestor May be Required. The Operator Should Contact Local Fire Agencies For Laws or Regulations Relating to Fire Prevention Requirements.
1A8250-65390
Owner's Address
Owner's Phone Number
Dealer/Seller Name
Dealer/Seller Address
Dealer/Seller Phone Number

INTRODUCTION

Welcome to the World of Yanmar Tractor

Thank you for purchasing Yanmar tractor product that has been designed and manufactured based on the Yanmar state-of-the-art technology and rich expertise in developing and manufacturing products.
Handle the tractor correctly by following the instructions in the Operator's Manual so that the tractor will provide long years of reliable and predictable service.
The Operator's Manual constitutes an indispensable part of the Yanmar tractor product. Always keep the Operator's Manual readily accessible.
Carefully study the Operator's Manual to get familiar with the instructions and informations contained in the Operator's Manual. The instructions and informations are helpful in using the tractor correctly and safely, avoiding personal injury and other accidents during operation and servicing of the tr actor. When using any implement together with the tractor, also carefully study the Operator's Manual of the implement so that the operator can use the implement safely, correctly and efficiently.
The Operator's Manual is organized with sections arranged in a particular order so that the operator can better understand the safety messages and the controls on the tractor to help the operator operate the tractor correctly and safely. The Operator's Manual will also help the operator answer questions about operation and servicing.
The tractor shown in the Operator's Manual may somewhat differ from the actual tractor. The Operator's Manual will still assist the operator in understanding the instructions associated with the tractor. Before delivery of the tractor, your Yanmar Tractor dealer has performed a pre-delivery check to ensure that the tractor can long remain problem free.
All information, descriptions, specifications, drawings, illustrations, and pictures in this manual are based on the latest information available at the time this manual was published. Yanmar reserves the right to make changes at any time without prior notice. © 2011 Yanmar Co., Ltd. Yanmar licenses the usage rights of this manual in North America to YANMAR AMERICA CORPORATION. © 2011
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Lx410/450/490 Operator’s Manual

PICTOGRAPHS

To help assist the operator in operating the tractor, various easy to understand pictographs have been created and are used throughout the Operator's Manual. The pictographs are listed below together with the corresponding meanings.
<Starter key switch>
Safety alert symbol
Engine start
<Instrument panel>
Fuel level
Glow
Engine oil pressure
Alternator/Battery charging condition
Engine speed
Hour meter
Engine coolant temperature
Revolutions Per Minute (rpm)
Power Take Off (PTO)
Engine run
Engine shut-off
<Levers and knobs>
Power Take Off (PTO) OFF position
Power Take Off (PTO) ON position
Differential lock
Implement control lock/unlock
4-wheel drive on
2-wheel drive on
Slow
Fast
Parking brake
<Lights>
Turn signal
Headlight high
Headlight low
Hazard warning lights
Lx410/450/490 Operator's Manual
Position control raised position
Position control lowered position
Hydraulic flow control/stop
Tilt pedal lock/unlock
Parking brake lock/unlock
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TABLE OF CONTENTS
1. SAFETY PRECAUTIONS ................................................................................... 1-1
1. About The Operator’s Manual.................................................................................................1-1
2. Safety Alert Symbol................................................................................................................. 1-2
3. Precautions Before Operating The Tractor ............................................................................. 1-3
4. Safe Practices for Operating the Tractor................................................................................. 1-4
1. Start the Tractor................................... ..................................................................................................................1-4
2. Work with the Tractor ............................................................................................................................................1-5
3. Stop the Tractor...................................................................................................... ... ............................................1-5
4. Considerations for Safety of a Child......................................................................................................................1-5
5. Operate the Tractor on Slopes................................................................................................1-6
6. Travel on a Road .....................................................................................................................1-7
7. Safe Practices for Parking the Tractor .................................................................................... 1-7
8. Operate the Power Take Off (PTO).........................................................................................1-8
9. Use the 3-Point Hitch ..............................................................................................................1-8
10.Roll-Over Protective Structure (ROPS) Precautions............................................................... 1-8
11.Safe Practices for Servicing the Tractor..................................................................................1-9
12.Replace the Rubber Product/s, such as Hydraulic Hose, Fuel Hoses, Power Steering Hoses,
Radiator Hoses and Air Intake Hose for Every 2 Years........................................................1-11
13.Understand the Tractor Safety Decals..................................................................................1-11
Safety Alert Symbol.............................................................................................................................................1-11
Care of DANGER, WARNING and CAUTION Decals.........................................................................................1-11
2. SERVICE THE TRACTOR.................................................................................. 2-1
3. SPECIFICATIONS............................................................................................... 3-1
1. Specifications Table................................................................................................................ 3-1
2. Traveling Speeds ....................................................................................................................3-3
4. IMPLEMENT CAPACITIES................................................................................. 4-1
5. NAMES AND FUNCTIONS OF COMPONENTS................................................ 5-1
1. Overview .................................................................................................................................5-1
Names of Main Components.................................................................................................................................5-1
Functions of Main Components........... ... ... ............................................................................................................5-2
2. Operator Station Controls........................................................................................................ 5-3
Names of Components..........................................................................................................................................5-3
Function of Components .......................................................................................................................................5-4
3. Instrument Panel................................................................................................................... 5-13
6. PRE-OPERATION CHECK................................................................................. 6-1
1. Pre-Operation Check............................................................................................................... 6-1
2. Precautions Before Operation.................................................................................................6-1
3. Routine Checks.......................................................................................................................6-1
4. Prevent Damage to Plastic Surfaces and Painted Surfaces...................................................6-1
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Lx410/450/490 Operator's Manual
TABLE OF CONTENTS
7. OPERATE THE ENGINE .................................................................................... 7-1
1. Start the Engine....................................................................................................................... 7-1
2. Start the Engine in Cold Weather............................................................................................ 7-8
3. Shut Off the Engine.................................................................................................................7-8
4. Restart a Stalled Engine........................................................................................................ 7-10
5. Start When the Engine Runs Out of Fuel..............................................................................7-10
8. OPERATE THE TRACTOR................................................................................. 8-1
1. Operate a New Tractor............................................................................................................8-2
Always run the tractor at less than full speed during the first 50 hours of operation .............................................8-2
Change the lubricating oil for the new tractor........................................................................................................8-2
2. Raise and Lower the Roll-Over Protective Structure (ROPS)................................................. 8-3
Lower (folded "down") the Roll-Over Protective Structure (ROPS).......................................................................8-3
Raise (unfolded "up") the Roll-Over Protective Structure (ROPS) ........................................................................8-4
3. Operate the Tractor.................................................................................................................8-4
Headlights and Side Lights....................................................................................................................................8-5
Turn Signals .................................................................................. ... .....................................................................8-5
Hazard Lights ........................................................................................................................................................8-5
Forward/N/Reverse Lever .....................................................................................................................................8-5
Warm Up Transmission Hydraulic Oil in a Cold Weather Situation.......................................................................8-6
Primary Gear Lever ...................................................... ... ................................................ ... ...................................8-7
Range Gear Lever.................................................................................................................................................8-7
2WD/4WD Lever....................................................................................................................................................8-9
Tips on the 4-Wheel Drive ....................................... ........................................................ ... ...................................8-9
Throttle Control Lever..........................................................................................................................................8-10
Accelerator Pedal ................................................................................................................................................8-10
3-Point Hitch Control Lever .................................................................................................................................8-10
4. Stop the Tractor..................................................................................................................... 8-11
Stopping Procedure.......... .. ... ........................................................ ... ...................................................................8-11
Stop in an Emergency .........................................................................................................................................8-11
5. Use the Brake........................................................................................................................ 8-12
Engage the Parking Brake...................................................................................................................................8-12
Disengage the Parking Brake..............................................................................................................................8-12
Use the Brake Pedals as Driving Brake (on Roads)............................................................................................8-12
Use the Brake Pedal for Easier Turning..............................................................................................................8-13
Use the Clutch Pedal...........................................................................................................................................8-13
6. Practices for Safe Operation................................................................................................. 8-14
Differential Lock...................................................................................................................................................8-14
Drive the Tractor on Roads .................................................................................................................................8-14
Push or Tow the Tractor......................................................................................................................................8-15
Allowable Loads When Towing with the Tractor..................................................................................................8-16
Transport the Tractor on a Trailer............................................. ...........................................................................8-17
Operate on Slopes and Rough Terrain................................................................................................................8-17
Uphill and Downhill Slopes ..................................................................................................................................8-18
Steep Downhill Slope ..........................................................................................................................................8-18
About the Power Steering....................................................................................................................................8-19
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TABLE OF CONTENTS
9. POWER TAKE OFF (PTO) SYSTEM.................................................................. 9-1
1. Operate the Power Take Off (PTO) System............................................................................9-1
Determine the Appropriate Power Take Off (PTO) Speed ....................................................................................9-2
Engage Power Take Off (PTO) (with the operator on the operator seat)..............................................................9-2
Disengage Power Take Off (PTO) (with the operator on the operator seat) .........................................................9-3
2. Use Power Take Off (PTO) Safely..........................................................................................9-3
Use Power Take Off (PTO) Shield ........................................................................................................................9-3
3. Install an Implement to Power Take Off (PTO) Driveline ........................................................ 9-4
10.3-POINT HITCH AND DRAWBAR.................................................................... 10-1
1. 3-Point Hitch ..........................................................................................................................10-1
Use the 3-Point Hitch Control Lever ....................................................................................................................10-1
Use the Position Stop Knob.................................................................................................................................10-2
Hydraulic Flow Control/Stop Knob.......................................................................................................................10-2
Use the Lower Links (and Top Link as Needed) .................................................................................................10-3
Level the Implement Front to Rear......................................................................................................................10-4
Level the Implement Side to Side........................................................................................................................10-4
Adjust the Stabilizer.............................................................................................................................................10-5
2. Drawbar................................................................................................................................. 10-5
Maximum Drawbar Loads....................................................................................................................................10-5
Deploy/Stow the Drawbar....................................................................................................................................10-6
3. Use the Safety Chain10-6
Remove Drawbar.................................................................................................................................................10-6
11.HYDRAULIC SYSTEM...................................................................................... 11-1
1. 3-point Hitch Control System.................................................................................................11-1
Use the 3-Point Hitch Control Lever ....................................................................................................................11-1
Use the Position Stop Knob.................................................................................................................................11-2
Hydraulic Flow Control/Stop Knob.......................................................................................................................11-2
2. Operate the Implement Control Valve................................................................................... 11-3
Implement Control Lever .................................................................. ...................................................................11-3
Implement Control Lever Lock.................................................. .. ... ......................................................................11-4
Connect the Implement Hydraulic Hoses ............................................................................................................11-4
12.TIRES, WHEELS AND WEIGHTS.................................................................... 12-1
1. Tires ......................................................................................................................................12-1
2. Adjust the Wheels .................................................................................................................12-2
Check the Wheel Bolt Tightening Torque............................................................................................................12-2
Select the Front Tire Rolling Direction.................................................................................................................12-3
Change the Tire Tread Width ..............................................................................................................................12-3
3. Remove/Install the Wheels....................................................................................................12-5
4. Weights (Option) ...................................................................................................................12-5
Select the Appropriate Amount of Front Weight................................................................. .. ...............................12-6
Front Weights (option).........................................................................................................................................12-6
Select the Appropriate Amount of Rear Weight...................................................................................................12-6
Use the Optional Rear Wheel Weights................................................................................................................12-7
Use the Optional Rear Ballast .............................................................................................................................12-7
Use Liquid Weight for the Tires ...........................................................................................................................12-7
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Lx410/450/490 Operator's Manual
TABLE OF CONTENTS
13.MAINTENANCE................................................................................................ 13-1
1. Maintenance Check List........................................................................................................13-1
2. Diesel Fuel Specifications..................................................................................................... 13-3
3. Lubricants.............................................................................................................................. 13-4
4. Replacement Parts................................................................................................................ 13-5
Technical Document.............. ........................................................ ... ...................................................................13-5
Parts ....................................................................................................................................................................13-5
14.PERIODIC SERVICE ........................................................................................ 14-1
Service the Tractor................................................................................................................14-1
Warranty and Repair of the Engine.......................................................................................14-1
1. Open/Close the Hood............................................................................................................14-2
Open the Hood ....................................................................................................................................................14-2
Close the Hood....................................................................................................................................................14-3
2. Daily Checks .........................................................................................................................14-3
Check the Engine Oil Level .................................................................................................................................14-3
Inspect the Transmission Hydraulic Oil Level......................................................................................................14-4
Check the Tire Air Pressure ................................................................................................................................14-5
Clean the Front Grille and Side Screens.............................................................................................................14-6
Check the Fuel Line.............................................................................................................................................14-6
Check the Power Steering Line...........................................................................................................................14-6
Check the Retractable Seatbelt...........................................................................................................................14-6
Check the Roll-Over Protective Structure (ROPS)..............................................................................................14-6
Check the Headlights, Hazard Lights, etc. ..........................................................................................................14-6
Check and Refill the Fuel Tank ...........................................................................................................................14-6
Check and Clean the Rubber Dust Unloading Valve...........................................................................................14-7
Clean the Radiator Hoses and Clamps ...............................................................................................................14-8
Clean the Radiator Cooling Screen.....................................................................................................................14-9
Clean Radiator Cooling Fins................................................................................................................................14-9
Check the Wheel Bolt Tightening Torque..........................................................................................................14-10
Inspection Procedure for the Safety System .....................................................................................................14-11
Check the Cooling System ................................................................................................................................14-14
3. Check and Replace as Necessary......................................................................................14-15
Inspect the Alternator/Fan Belt..........................................................................................................................14-15
Check and Replace the Battery.........................................................................................................................14-15
Check the Fuses................................................................................................................................................14-15
Check the Light Bulbs........................................................................................................................................14-15
Check and Drain the Fuel/Water Separator ......................................................................................................14-15
4. First 50 Hours...................................................................................................................... 14-15
Change the Engine Oil ......................................................................................................................................14-15
Replace the Engine Oil Filter.............................................................................................................................14-15
Replace the Transmission Hydraulic Oil Filters.................................................................................................14-15
Change the Transmission Hydraulic Oil ............................................................................................................14-15
Change the Alternator/Fan Belt.........................................................................................................................14-15
5. Every 50 Hours.................................................................................................................... 14-16
Check the Front Axle Gear Oil Level.................................................................................................................14-16
Grease Fittings .................................................. ... ................................................ .. ...........................................14-17
Service the Alternator/fan Belt...........................................................................................................................14-19
Check the Fuel/Water Separator.......................................................................................................................14-20
Check the Battery Condition..............................................................................................................................14-21
6. Every 100 Hours.................................................................................................................. 14-21
Service the Air Cleaner Element .......................................................................................................................14-21
Clean the Fuel/Water Separator and Replace the Fuel Filter............................................................................14-23
Lx410/450/490 Operator's Manual
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TABLE OF CONTENTS
7. Every 200 Hours.................................................................................................................. 14-24
Engine Oil ..........................................................................................................................................................14-24
Change the Engine Oil and Engine Oil Filter.....................................................................................................14-24
Inspect and Adjust the Toe-in............................................................................................................................14-26
Check the Air Intake Hoses and Clamps...........................................................................................................14-26
8. Every 300 Hours.................................................................................................................. 14-27
Transmission Hydraulic Oil................................................................................................................................14-27
Change the Transmission Hydraulic Oil and Replace the Transmission Hydraulic Oil Filters...........................14-27
9. Every 500 Hours.................................................................................................................. 14-29
Replace the Fuel Filter ......................................................................................................................................14-29
Adjust the Brake ................................................................................................................................................14-29
Change the Front Axle Gear Oil ........................................................................................................................14-29
10.Every 1000 Hours................................................................................................................14-31
Service the Cooling System ..............................................................................................................................14-31
Recommended Engine Coolant.........................................................................................................................14-33
Adjust the Tension of the Throttle Control Lever...............................................................................................14-33
Adjust the Engine Valve Clearance.............. .. ...................................................................................................14-33
Check the Fuel Injection Nozzle........................................................................................................................14-33
Check the Fuel Injection Pump..........................................................................................................................14-33
11.Every 2 Years or 2000 Hours.............................................................................................. 14-34
Replace the Thermostat ....................................................................................................................................14-34
12.General Maintenance...................................................... ....................................................14-34
15.SERVICE THE ELECTRICAL SYSTEM........................................................... 15-1
1. Battery...................................................................................................................................15-1
Service the Battery Safely ...................................................................................................................................15-1
Inspect the Battery................................................ ... ... .........................................................................................15-2
Remove and Install the Battery ...........................................................................................................................15-2
Clean the Battery and Terminals.........................................................................................................................15-3
Use a Booster Battery .........................................................................................................................................15-3
2. Fuses..................................................................................................................................... 15-4
Replace the Accessory Fuses.............................................................................................................................15-4
Check the Alternator Fuse and the Main Fuse....................................................................................................15-5
3. Bulb....................................................................................................................................... 15-5
Replace the Headlights Bulb ...............................................................................................................................15-5
Replace the Side Lights Bulb ..............................................................................................................................15-6
Replace the Tail Lights Bulb................................................................................................................................15-6
Replace the Turn Signal/Hazard Lights Bulb.............. .........................................................................................15-7
Replace the Instrument Panel Light Bulb ............................................................................................................15-7
4. Headlights .............................................................................................................................15-8
Adjust the Headlights...........................................................................................................................................15-8
16.STORAGE......................................................................................................... 16-1
1. Safe Practices for Storage ....................................................................................................16-1
1. Prepare the Tractor for Storage...........................................................................................................................16-1
2. Prepare the Fuel and Engine for Storage............................................................................................................16-1
Fuel......................................................................................................................................................................16-1
Engine .................................................................................................................................................................16-2
2. Prepare the Stored Tractor for Operation..............................................................................16-2
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Lx410/450/490 Operator's Manual
TABLE OF CONTENTS
17.TROUBLESHOOTING...................................................................................... 17-1
1. How to Use the Troubleshooting Table................................................................................. 17-1
1. Engine .................................................................................................................................................................17-1
2. Electrical System.................................................................................................................................................17-8
3. Brakes ...............................................................................................................................................................17-10
4. Steering .............................................................................................................................................................17-10
5. Body and Machinery..........................................................................................................................................17-11
18.INDEX................................................................................................................ 18-1
Lx410/450/490 Operator's Manual
8

1. SAFETY PRECAUTIONS

450_000_Lxa
LEFT
REARRIGHT
FRONT
1. SAFETY PRECAUTIONS

1. About The Operator’s Manual

The Operator’s Manual presents messages that help the operator remain aware of potential hazards and possible tractor damage in operating and servicing the tractor. Carefully study all of the information in the Operator’s Manual so that the operator can avoid personal injury or property damage.
NOTE
Unless otherwise stated, the expressions right hand side, left hand side, front side and rear side, used throughout the Operator’s Manual are relative to the operator’s position.
1-1
Lx410/450/490 Operator's Manual

2. Safety Alert Symbol

! DANGER
! WARNING
! CAUTION
NOTICE
The safety alert symbol appears with most safety statements. The safety alert symbol means attention, become alert, the operator’s safety is involved! Please read and strictly observe the message that follows the safety alert symbol.
1. SAFETY PRECAUTIONS
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Indicates a situation which can cause damage to the tractor, personal property and/o r th e en vir onment or cause the equipment to operate imprope rly.
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
WARNING: READ AND FOLLOW ALL INSTRUCTIONS IN THE OPERATOR’S MANUAL BEFORE ATTEMPTING TO OPERATE THE TRACTOR. FAILURE TO COMPLY WITH THE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
WARNING: The engine exhaust, some of its constituents and certain tractor compo nen ts con tai n
or emit chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
DANGER: The tractor is built to be operated according to the rules for safe operation in the
Operator’s Manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. To help prevent accidents, read and take the following precautions before operating the tractor. Failure to observe the following safety instructions could result in serious injury or death.
IMPORTANT: Means that implement or
property damage could occur if instructions are ignored.
NOTE: Provides useful information.
Lx410/450/490 Operator's Manual
1-2
1. SAFETY PRECAUTIONS

3. Precautions Before Operating The Tractor

1. Understand the performance and limitations of the tractor. Carefully study the Operator’s Manual and learn the instructions in the Operator's Manual before operating or servicing the tractor. Keep the Operator’s Manual in an easily accessible place.
2. Strictly follow the statements given in the DANGER, WARNING and CAUTION safety decals attached to the tractor.
3. Do not operate the tractor with the Roll-Over Protective Structure (ROPS) in the folded "down" position. Keep the retractable seatbelt fastened while operating the tractor with the Roll-Over Protective Structure (ROPS) in the unfolded "up" position. The preceding practice will reduce the possibility of injury or death in the event of roll over accident. If the Roll-Over Protective Structure (ROPS) has been removed for any reason, ensure to install all the associated parts before operating the tractor. Do not alter the Roll-Over Protective Structure (ROPS). The altered Roll-Over Protective Structure (ROPS) may fail to provide the designed protection. Replace the damaged Roll-Over Protective Structure (ROPS) immediately. Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance. The foldable Roll-Over Protective Structure (ROPS) may be temporarily folded down when absolutely necessary for areas with height limitations. Remember that when the Roll-Over Protective Structure (ROPS) is in the "down" position, the Roll-Over Protective Structure (ROPS) does not provide operator protection and the retractable seatbelt should not be worn. For operator safety, always keep the Roll-Over Protective Structure (ROPS) in the unfolded "up" position and locked securely. NEVER alter or repair the Roll-Over Protective Structure (ROPS). Welding, bending, drilling, grinding, or cutting may weaken the Roll-Over
Protective Structure (ROPS). Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
4. Always fasten the retractable seatbelt while operating the tractor with the Roll-Over Protective Structure (ROPS) in the unfolded "up" position. Check the retractable seatbelt for any damage. Replace the damaged retractable seatbelt immediately. Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance. Do not use the retractable seatbelt if the Roll­Over Protective Structure (ROPS) is in the folded "down" position or the tractor does not have the Roll-Over Protective Structure (ROPS).
5. Check overhead clearance carefully before driving under power lines, wires, bridges or low hanging tree branches, before entering or leaving buildings, or in any other situation where the operator and/or Roll-Over Protective Structure (ROPS) may be struck, which could result in serious injury.
6. Make sure that the usual operator and any other person who will operate the tractor studies the Operator’s Manual before operation. Know the controls and how to stop the tractor quickly.
7. Make sure that any person or obstacle is not under or around the tractor before and during operation. Make sure to maintain sufficient overhead clearance above the tractor.
8. Do not operate the tractor and/or implement installed on the tractor while under the influence of alcohol, drugs, medicine or controlled substance/s or when not fit to operate the tractor.
9. During operation and when performing service work:
• Wear close-fitting clothing.
• Do not wear loose-fitting clothes, jewelry, baggy or torn clothing.
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Lx410/450/490 Operator's Manual
1. SAFETY PRECAUTIONS
• When any of the preceding items is caught by a moving part of the tractor, an accident can happen.
• Do not wear cut-off pants or shorts which do not provide protection against flying debris.
• Do not under any circumstances operate the tractor with bare feet.
• Do not wear sandals or sneakers.
• Wear additional protection including non-slip safety boots or shoes, protective goggles and gloves, etc., as appropriate or required by applicable local laws and regulations.
• Wear ear protection in a noisy environment to prevent hearing damage and to reduce operator fatigue.
10.Avoid allowing passenger/s on any portion of the tractor.
11.Always remain seated in the operator seat while operating the tractor.
12.Make sure that the brakes and other mechanical components are properly adjusted and do not have excessive wear.
• Immediately replace all excessively worn out or damaged components.
• At regular intervals, check that all nuts, bolts and screws are properly tightened. (For details, see "Chapter 13. MAINTENANCE" on page 13-1).
13.Always keep the tractor clean. Dust, grease or grass clippings accumulated on the tractor can lead to fire accidents or personal injury.
14.Use the handholds and running board step when getting on and off the tractor to help prevent accidental falls. Keep the running board step clear of mud and debris.
15.Only use the implements that satisfy the requirements in the Operator's Manual or are approved by your Yanmar tractor dealer. (For details, see "Chapter 4. IMPLEMENT CAPACITIES" on page 4-1).
16.When using front, mid- or rear mounted implements, install an appropriate weight/s to the front or rear of the tractor to prevent up setting the tractor. When using the mid-implement, the operator may use front and rear weights. If the operator choose to use the loader, mount an implement or weight to the 3-point hitch in order to stabilize the tractor. Observe the instructions about safety in the Operator’s Manual for the implement to be used.
17.Remember that a narrower tire tread width can lead to greater possibility of upsetting the balance of the tractor. To positively stabilize the tractor, select a maximum possible tire tread width appropriate for the intended application. (For details, see "Change the Tire Tread Width" on page 12-3).
18.Do not under any circumstances modify the tractor. Modification can deteriorate the performance and/or safety of the tractor, possibly leading to personal injury or property damage.
19.Do not attempt to adjust the low or high idle speed limit screw. Adjusting the low or high idle speed limit screw may impair the safety and performance of the tractor and shorten the life of the tractor.

4. Safe Practices for Operating the Tractor

1. Start the Tractor

1. Remain seated in the operator seat when starting the engine or actuating the levers or controls. Do not start the engine or operate controls while standing beside the tractor.
2. Before starting the engine, ensure that all the levers are in the N (neutral) positions, the parking brake is engaged securely, and Power Take Off (PTO) switch is in the OFF position.
3. Always keep the retractable seatbelt fastened around the operator’s waist whenever the Roll-
Lx410/450/490 Operator's Manual
4. If the tractor is started where there is a height
5. Start the engine of the tractor only by using the
1-4
Over Protective Structure (ROPS) is in the unfolded "up" position and locked securely.
limitation, immediately return the Roll-Over Protective Structure (ROPS) to the unfolded "up" position and locked securely and fasten the retractable seatbelt.
starter key switch. Avoid starting the engine by short circuiting across the starter solenoid terminals with a jumper wire, or by bypassing the safety start switch. This defeats the safety
1. SAFETY PRECAUTIONS
interlock circuit and the tractor may begin to move and/or the Power Take Off (PTO) shafts may begin to rotate, possibly leading to personal injury or property damage.
6. Avoid running or idling the engine in a confined area that is poorly ventilated or not ventilated at all. The engine emits carbon monoxide gas that is colorless, odorless and can cause death.
7. Before operation, check that all the safety features are functioning correctly. Never tam per with safety devices. Check the proper operation regularly. Contact YOUR LOCAL YANMAR TRACTOR DEALER for safety devices malfunction.
8. Avoid accidental contact with control pedals while the engine is running, as this can cause unexpected movement of the tractor.
9. Always attend to the running tractor.

2. Work with the Tractor

1. Tow an implement only with the drawbar. Avoid hitching via the axle housing. The tractor ca n upset its balance, leading to serious injury or death. Make sure the drawbar pin is locked in place.
2. Any towed vehicle with the total weight exceeding that of the tractor should be equipped with its own braking system that is operational from the tractor operator seat.
3. Make sure that all the covers and guards are in position. Replace any missing or damaged covers immediately.
4. Before turning or during traveling on a rough terrain, or before stopping, decrease the tractor speed in order to prevent upsetting.
5. Use extra caution during operating over rough ground, when crossing ditches or operating on slopes and when turning corners.
6. Avoid turning with the differential lock engaged. Attempting to turn the tractor while the differential lock is engaged can lead to a roll over.
7. Stay clear of ditches, potholes, embankments or ponds. The incident of upsetting the tractor can
occur more on soft or wet ground. Before entering an area covered with tall grass, inspect the area to detect any obstacles.
8. The operator should always pay attention for blind corners, trees and other object that can obstruct the operator's vision. The operator should always remain alert when approaching the row of trees or any obstacle.
9. When two or more people are working in one area, always keep in good communication between each other.
10.Do not under any circumstances get on or off the moving tractor.
11.When driving at night, ensure that all necessary lights are illuminated.
12.When driving, do not shift the range gear. Always shift the range gear when the tractor is completely stopped.

3. Stop the Tractor

The procedures of stopping the tractor are as follows:
1. Make sure that the left side brake pedal and the right side brake pedal are connected with the brake pedal connector lock.
2. Reduce the engine speed.
3. Depress the clutch pedal completely to disengage the clutch.
4. Depress the brake pedals to stop the tractor.
5. Move the primary gear to the N (neutral) position.

4. Considerations for Safety of a Child

Tragic accidents can occur if the operator is not alert to the presence of a child. A child is often attracte d to the tractor. A child does not understand the dangers. Never assume a child will remain where the operator last saw the child.
1. Keep a child out of the operating area and under the watchful care of an adult other than the operator.
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1. SAFETY PRECAUTIONS
A2019005
! WARNING
2. Be alert if a child enters the work area, stop the tractor immediately.
3. Never allow a child to ride on the tractor. The child can fall off and be seriously injured or interfere with safe tractor operation.
4. Never allow a child under 16 years old to operate the tractor. A child, 16 years old and under should only operate the tractor under close parental supervision and proper instruction.

5. Operate the Tractor on Slopes

On a slope, the tractor is less stable and more pr one to tip over, possibly leading to serious injury or dea th. Remain very cautious while the tractor is on any slope.
5. Be extremely careful when backing the tractor. Before and during backing, look back and downward. A child may be in the path.
6. Use extra care when approaching blind corners, shrubs, trees or other objects that may obscure the operator’s vision of a child or other hazard.
7. Never allow a child to play on the tractor or implement.
8. Keep a child away from hot or running engine. The child may suffer burns.
to avoid false confidence in the tractor’s ability to climb slopes.
To improve stability on a slope, select the widest
possible tire tread width. Observe the instructions for appropriate weighting.
DO NOT:
Keep away from drop-offs, ditches or
embankments during mowing. The mower could suddenly turn over if a wheel goes over the edge of a cliff, ditch or if an edge caves in.
DO:
Operate up and down slopes, not across.
Remove obstacles such as rocks, limbs, etc.
Watch for potholes, ruts or bumps. Uneven terra in
can overturn the tractor. Tall grass can hide such obstacles.
Place the transmission in the low range when climbing or descending slopes. Always keep the tractor in gear when going down slopes to take advantage of engine braking action.
Keep all movement on the slopes slow and gradual. Do not make sudden changes in spee d or direction. Rapid engagement or braking can ca use the front of the tractor to lift and rapidly tip over backwards which can cause serious injury.
Avoid starting or stopping on a slope. If tires lose traction, push down Power Take Off (PTO) switch to OFF position and proceed slowly straight down the slope.
To avoid upset, move backward up a steep slope. If backing on the slope is difficult, do not attempt to continue. Avoid an extremely steep slope.
When moving forward to get out from a d itch, deep mud or when traveling on a steep slope, the risk of the tractor upsetting backward is high. Always move backward to get out from these situations. In the 4-wheel drive mode, special caution is needed
Lx410/450/490 Operator's Manual
Before approaching a slope, select an appropriate speed setting. Make sure to run the tractor at a lower speed on slopes. Never attempt to shift gears on a slope. The tractor can suddenly go downhill out of control. Avoid increasing and decreasing the tractor speed rapidly.
Do not move the range gear lever in the N (neutral) position when on a slope.
When climbing or descending a slope, do not shift the range gear lever. Shifting the range gear lever into the N (neutral) position can result in loss of control of the tractor.
Starting the tractor with the front end uphill can cause the front wheels to jump off the ground and this situation poses an extreme danger. To avoid this problem, run the engine at a lower speed, and gently start the tractor.
Avoid parking the tractor on a slope. If parking on a slope is unavoidable, chock all the tires safely and securely and engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4.
Avoid depressing the clutch pedal when operating on a slope.
1-6

6. Travel on a Road

1. SAFETY PRECAUTIONS
1. Disengagement of the 4-wheel drive is recommended.
2. Remember that the braking characteristics differ between the 2-wheel drive and 4-wheel drive modes. Be aware of the current drive mode and use carefully.
3. Release the clutch pedal slowly.
4. Before turning, always slow down the tractor. High speed turn may cause the tractor to tip over.
5. When traveling on a road, ensure that the Slow Moving Vehicle (SMV) emblem is on the rear of tractor and is clearly visible. Use the hazard lights and turn signal lights as required by the currently effective local laws or regulations.
6. Strictly observe all the currently effective local traffic and safety laws and regulations.
7. Turn ON the headlights as required by the currently effective local laws or regulations.
8. Always travel at a speed that allows the operator to maintain control of the tractor.

7. Safe Practices for Parking the Tractor

9. Avoid engaging differential lock while traveling o n a road. It may cause the operator to lose control of the tractor.
10.While traveling on a road, do not tur n the steering wheel suddenly. Such an action can lead to loss in the stability of the tractor and can cause an extremely dangerous situation.
11.While on a road, do not attempt to operate an implement. During transportation, place the 3­point hitch control lever in the raised position and lock the 3-point hitch control lever with the position stop knob. Do not fully close the hydraulic flow control/stop knob to hold an implement in the raised position while the tractor is traveling with the implements. The preceding action can cause damage to the hydraulic lift circuit.
12.When towing implement, connect a safety chain to the implement and mount a Slow Moving Vehicle (SMV) emblem on the rear of the tractor.
1. Push down Power Take Off (PTO) switch to OFF position, lower the implements to the ground, move all the levers to N (neutral) position, engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4, shut off the engine and remove the key.
2. Before leaving the tractor, ensure that the tractor is completely stopped.
3. Avoid parking the tractor on a steep slope. Rather, park on solid and level ground whenever possible. If parking on a slope is unavoidable, park the tractor across the slope and lower the implement to the ground and chock all the tires safely and securely.
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8. Operate the Power Take Off (PTO)

1. Before connecting/disconnecting, adjusting, cleaning or servicing Power Take Off (PTO) driven implement, ensure that all the moving components are not moving.
2. Make sure that Power Take Off (PTO) shaft cap is always in place. Replace Power Take Off (PTO) shaft cap only when the shaft is not moving.
3. Before installing or operating the Power Take Off (PTO) driven implement, carefully study the Operator's Manual of the implement and the safety decals on the implement.
4. When installing stationary Power Take Off (PTO) driven implements, ensure to engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4, chock all the tires safely and securely. Avoid approaching or accessing any rotating component.
5. Make sure to remove the drawbar before using the Power Take Off (PTO).

9. Use the 3-Point Hitch

1. Use the 3-point hitch only in conjunction with the implement that is specifically designed for use with the 3-point hitch.
2. Before using the 3-point hitch mounted implement, the appropriate weight may need to be installed on the front of the tractor.
3. While on a road, do not attempt to operate an implement. During transportation, place the 3­point hitch control lever in the raised position and lock the 3-point hitch control lever with the position stop knob. Do not fully close the hydraulic flow control/stop knob to hold an implement in the raised position while the tractor is traveling with the implement. The preceding action can cause damage to the hydraulic lift circuit.
10. Roll-Over Protective Structure (ROPS) Precautions
The tractor is equipped with a Roll-Over Protective Structure (ROPS) which must be maintained in a fully functional condition. Check overhead clearance carefully before driving under power lines, wires, bridges or low hanging branches, before entering or leaving buildings, or in any other situation where the operator and/or Roll-Over Protective Structure (ROPS) can be struck, which can result in serious injury.
3. Use only genuine parts to replace any damaged part/s of the Roll-Over Protective Structure (ROPS).
4. Never attach ropes, chains or cables to the Roll­Over Protective Structure (ROPS) for pulling purposes.
5. Although the Roll-Over Protective Structure (ROPS) provides the maximum protection possible, always take necessary precautions.
1. Always keep the Roll-Over Protective Structure (ROPS) on its original condition.
2. Replace the Roll-Over Protective Structure (ROPS) whenever the Roll-Over Protective Structure (ROPS) has been damaged. The preceding action can weaken the structure and endanger the safety of the operator.
Lx410/450/490 Operator's Manual
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1. SAFETY PRECAUTIONS
11. Safe Practices for Servicing the Tractor
Before starting any service work, park the tractor on solid and level ground, engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4, lower the implement to the ground, move all the levers to N (neutral) position, push down Power Take Off (PTO) switch to OFF position, shut off the engine and remove the key.
1. Always keep a first aid kit and a fire extinguisher readily available.
2. Before accessing the engine, muffler, ra dia to r and radiator cap or other possibly hot components, wait until the tractor has fully cooled down.
9. Prior to “jump starting” a tractor that has fully depleted battery, read and follow all the instructions in “Chapter 15. SERVICE THE ELECTRICAL SYSTEM” on page 15-1.
10.Add coolant or water to the reserve tank, not to the radiator (For details, see “Check the Cooling System” on page 14-14).
11.Before working on or around electrical components, disconnect the negative (–) battery terminal first.
12.To prevent a spark occurring from short circ uit, disconnect the negative (–) battery terminal first and reconnect last.
3. Use extreme care in handling diesel fuels. Diesel fuels are extremely flammable and the vapors are explosive. Use only a container approved by the local effective law.
4. Make sure to shut off the engine before refueling. After refueling, replace fuel filler cap securely and wipe off any spilled diesel fuel before starting the engine as the diesel fuel may cause a fire or explosion.
5. Do not smoke while refueling. Keep any spark or open flame away from the fuel tank.
6. Never refuel the tractor indoors because diesel fuel vapors will accumulate in the area.
7. Never store the fuel container or tractor indoor where there is an open flame or spark, such as a gas water heater, space heater or furnace.
8. Do not smoke while working around the battery. Keep any sparks or open flame away from the battery. The battery emits hydrogen and oxygen gasses, in particular during recharging and can pose a hazard of explosion.
13.The operator must not mount a tire onto a rim. Only qualified person must mount tire onto a rim.
14.Always keep the tires at the correct tire air pressure level. Avoid exceeding the recommended tire air pressure specified in the Operator’s Manual.
15.Keep the tractor securely supported while changing the wheels or adjusting the tire tread width. Make sure to tighten the wheel bolts to the specified tightening torque.
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16.Avoid working under any hydraulically supported devices. Such devices can leak, suddenly settle down, or be accidentally lowered. If working beneath the tractor or an implement is unavoidable, ensure to use a stand or lift apparatus with the capacity of more than 3 tons.
17.High pressure hydraulic fluid when released can penetrate human skin, possibly leading to serious personal injury. Before disconnecting any hydraulic line, fully release the internal pressure. Before exerting a pressure to the hydraulic system, ensure that all connections are tight and all the lines, pipes and hoses are free from fractures/fissures or any other damage.
18.Check brake operation frequently. Adjust and service as required.
19.Avoid changing the engine governor settings or overspeed the engine. Excessive engine speeds are dangerous.
20.Observe proper waste disposal laws and regulations. Prior to disposal, determine the proper method to dispose of waste from your local Environmental Protection Agency. Recycling centers are established to properly dispose of materials in an environmentally safe fashion.
21.Use container approved by the effective law when draining fluids. Avoid using food or beverage containers that can mislead someone into drinking from food or beverage containers. Properly dispose of the containers immediately following the draining of fluids.
22.Observe your local Environmental Protection Agency regulations when disposing of oil, fuel, coolant, brake fluids, filters, batteries, tires and other harmful waste.
23.Yanmar does not recommend the use of a pressure washer or garden hose to clean the tractor. Electrical components, spindles, pulleys, bearings or the engine can be damaged. Th e use of water will result in shortened life and reduce serviceability.
WARNING: THE OWNER/OPERATOR RESPONSIBILITY: Restrict the use of the tractor to persons who read, understand and follow the warnings and instructions in the Operator’s Manual and on the tractor.
Lx410/450/490 Operator's Manual
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1. SAFETY PRECAUTIONS
12. Replace the Rubber Product/s, such as Hydraulic Hose, Fuel Hoses, Power Steering Hoses, Radiator Hoses and Air Int ake Hose for Every 2 Years
The rubber product/s has/have a deteriorative character. The deteriorated rubber product/s may cause defects and damages such as fluid leakage, loss control of the tractor during operation, fire, burn injury.
13. Understand the Tractor Safety Decals

Safety Alert Symbol

The tractor safety decals illustrated in this section are provided in critical areas on the tractor so that people including the operator can remain always aware of potential hazards. The tractor safety decals contain the words DANGER, WARNING and CAUTION together with the safety alert symbol. DANGER and WARNING stand for the most serious hazards. The Operator’s Manual also contains special safety messages that explain potential hazards about which the operator must remain cautious. The messages are presented together with the word CAUTION and the safety alert symbol.

Care of DANGER, WARNING and CAUTION Decals

1. Always keep all the DANGER, WARNING and
CAUTION decals clean and clearly legible.
2. Clean the DANGER, WARNING and CAUTION decals
with soap and water, wipe dry with clean soft cloth.
3. Replace damaged or missing DANGER, WARNING
and CAUTION decals with new decals available from YOUR LOCAL YANMAR TRACTOR DEALER.
4. If a component having a DANGER, WARNING and
CAUTION decals is replaced with a new decal, ensure that the new decal is on the same location as of the old component.
5. Affix a new DANGER, WARNING and CAUTION
decals flat on a clean and dry surface, squeezing out trapped air.
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Lx410/450/490 Operator's Manual
1. SAFETY PRECAUTIONS
450_001_ROPS
(A)
! WARNING
(A) 1A8250-65800
ROLL-OVER HAZARD!
NEVER operate without seatbelt fastened.
NEVER jump if machine tips.
NEVER remove, repair or modify ROPS.
ALWAYS replace a damaged ROPS.
Failure to comply could result in death or
serious injury.
㪮㪘㪩㪥㪠㪥㪞
㪩㪦㪣㪣㪄㪦㪭㪜㪩㩷㪟㪘㪱㪘㪩㪛㩸
䍃㪥㪜㪭㪜㪩㩷㫆㫇㪼㫉㪸㫋㪼㩷㫎㫀㫋㪿㫆㫌㫋 㩷㫊㪼㪸㫋㪹㪼㫃㫋㩷㪽㪸㫊㫋㪼㫅㪼㪻㪅
䍃㪥㪜㪭㪜㪩㩷㫁㫌㫄㫇㩷㫀㪽㩷㫄㪸㪺㪿㫀㫅㪼㩷㫋㫀㫇㫊㪅 䍃㪥㪜㪭㪜㪩㩷㫉㪼㫄㫆㫍㪼㪃㩷㫉㪼㫇㪸㫀㫉㩷㫆㫉 㩷㫄㫆㪻㫀㪽㫐㩷㪩㪦㪧㪪㪅
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㪈㪘㪏㪉㪌㪇㪄㪍㪌㪏㪇㪇
Lx410/450/490 Operator's Manual
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1. SAFETY PRECAUTIONS
450_002_Fender
(B)
! WARNING
450_002_Fender
(C)
! DANGER
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪊㪇㪇
㪛㪘㪥㪞㪜㪩
㪫㪦㩷㪘㪭㪦㪠㪛㩷㪠㪥㪡㪬㪩㪰㩷㪦㪩㩷㪛㪜㪘㪫㪟㪑
䊶㪛㫆㩷㫅㫆㫋㩷㫊㫋㪸㫉㫋㩷㪼㫅㪾㫀㫅㪼㩷㪹㫐 䇭㫊㪿㫆㫉㫋㫀㫅㪾㩷㪸㪺㫉㫆㫊㫊㩷㫊㫋㪸㫉㫋㪼㫉 䇭㫋㪼㫉㫄㫀㫅㪸㫃㫊㩷㫆㫉㩷㪹㫐㫇㪸㫊㫊㫀㫅㪾 䇭㫊㪸㪽㪼㫋㫐㩷㫊㫋㪸㫉㫋㩷㫊㫎㫀㫋㪺㪿㪅 䊶㪪㫋㪸㫉㫋㩷㪼㫅㪾㫀㫅㪼㩷㫆㫅㫃㫐㩷㪽㫉㫆㫄 䇭㫊㪼㪸㫋㩷㩷㫎㫀㫋㪿㩷㫋㫉㪸㫅㫊㫄㫀㫊㫊㫀㫆㫅 㩷㪸㫅㪻㩷㪧㪫㪦㩷㪦㪝㪝㪅
(B) 1A8240-65320
1. Read this Operator's Manual before operating this tractor.
2. Do not operat e the machine without properly working guards, shields, and other safety devices in place and working.
3. Hitch towed loads only to drawbar to avoid rearward upset.
4. Make certain everyone is clear of machine before starting engine or operation.
5. Keep all riders off tractor and equipment.
6. Keep hands, feet and clothing away from power-driven parts.
7. Fasten seat belt while operating tractor.
8. Reduce speed when turning or operating around hazards, on rough ground or steep slopes.
9. Couple br ake pe dals to gether fo r ro ad tra vel.
10.Do not allow operation of the machine by untrained personnel.
11.Use flashing warning lights on highway unless prohibited by law.
12.Stop engine, lower implement to ground and lock park brake before dismounting.
13.Wait for all movement to stop before servicing machinery.
14.Remove key if leaving tractor unattended.
15.Securely support tractor and implements before working underneath.
㪮㪘㪩㪥㪠㪥㪞
䇭㪈㪅
㪩㪼㪸㪻㩷㪦㫇㪼㫉㪸㫋㫆㫉㩾㫊㩷㪤㪸㫅㫌㪸㫃㩷㪹㪼㪽㫆㫉㪼㩷㫆㫇㪼㫉㪸㫋㫀㫅㪾 㫋㪿㫀㫊㩷㫋㫉㪸㪺㫋㫆㫉㪅
䇭㪉㪅
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䇭㪊㪅
㪟㫀㫋㪺㪿㩷㫋㫆㫎㪼㪻㩷㫃㫆㪸㪻㫊㩷㫆㫅㫃㫐㩷㫋㫆㩷㪻㫉㪸㫎㪹㪸㫉㩷㫋㫆㩷㪸㫍㫆㫀㪻 㫉㪼㪸㫉㫎㪸㫉㪻㩷㫌㫇㫊㪼㫋㪅
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㪤㪸㫂㪼㩷㪺㪼㫉㫋㪸㫀㫅㩷㪼㫍㪼㫉㫐㫆㫅㪼㩷㫀㫊㩷㪺㫃㪼㪸㫉㩷㫆㪽㩷㫄㪸㪺㪿㫀㫅㪼 㪹㪼㪽㫆㫉㪼㩷㫊㫋㪸㫉㫋㫀㫅㪾㩷㪼㫅㪾㫀㫅㪼㩷㫆㫉㩷㫆㫇㪼㫉㪸㫋㫀㫆㫅㪅
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㪢㪼㪼㫇㩷㪿㪸㫅㪻㫊㪃㩷㪽㪼㪼㫋㩷㪸㫅㪻㩷㪺㫃㫆㫋㪿㫀㫅㪾㩷㪸㫎㪸㫐㩷㪽㫉㫆㫄 㫇㫆㫎㪼㫉㪄㪻㫉㫀㫍㪼㫅㩷㫇㪸㫉㫋㫊㪅 㪝㪸㫊㫋㪼㫅㩷㫊㪼㪸㫋㩷㪹㪼㫃㫋㩷㫎㪿㫀㫃㪼㩷㫆㫇㪼㫉㪸㫋㫀㫅㪾䇭㪎㪅 㫋㫉㪸㪺㫋㫆㫉㪅
㩷㪏㪅
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㪬㫊㪼㩷㪽㫃㪸㫊㪿㫀㫅㪾㩷㫎㪸㫉㫅㫀㫅㪾㩷㫃㫀㪾㪿㫋㫊㩷㫆㫅㩷㪿㫀㪾㪿㫎㪸㫐 㫌㫅㫃㪼㫊㫊㩷㫇㫉㫆㪿㫀㪹㫀㫋㪼㪻㩷㪹㫐㩷㫃㪸㫎㪅 㪪㫋㫆㫇㩷㪼㫅㪾㫀㫅㪼㪃㫃㫆㫎㪼㫉㩷㫀㫄㫇㫃㪼㫄㪼㫅㫋㩷㫋㫆㩷㪾㫉㫆㫌㫅㪻
㪈㪉㪅
㪸㫅㪻㩷㫃㫆㪺㫂㩷㫇㪸㫉㫂㩷㪹㫉㪸㫂㪼㩷㪹㪼㪽㫆㫉㪼㩷㪻㫀㫊㫄㫆㫌㫅㫋㫀㫅㪾㪅 㪮㪸㫀㫋㩷㪽㫆㫉㩷㪸㫃㫃㩷㫄㫆㫍㪼㫄㪼㫅㫋㩷㫋㫆㩷㫊㫋㫆㫇㩷㪹㪼㪽㫆㫉㪼
㪈㪊㪅
㫊㪼㫉㫍㫀㪺㫀㫅㪾㩷㫄㪸㪺㪿㫀㫅㪼㫉㫐㪅 㪩㪼㫄㫆㫍㪼㩷㫂㪼㫐㩷㫀㪽㩷㫃㪼㪸㫍㫀㫅㪾㩷㫋㫉㪸㪺㫋㫆㫉㩷㫌㫅㪸㫋㫋㪼㫅㪻㪼㪻㪅㪈㪋㪅 㪪㪼㪺㫌㫉㪼㫃㫐㩷㫊㫌㫇㫇㫆㫉㫋㩷㫋㫉㪸㪺㫋㫆㫉㩷㪸㫅㪻㩷㫀㫄㫇㫃㪼㫄㪼㫅㫋㫊㪈㪌㪅 㪹㪼㪽㫆㫉㪼㩷㫎㫆㫉㫂㫀㫅㪾㩷㫌㫅㪻㪼㫉㫅㪼㪸㫋㪿㪅
㪈㪘㪏㪉㪋㪇㪄㪍㪌㪊㪉㪇
(C) 1A8250-65300
TO AVOID INJURY OR DEATH:
Do not start engine by shorting across starter
terminals or bypassing safety start switch.
Start engine only from seat with transmission
and PTO OFF.
1-13
Lx410/450/490 Operator's Manual
(D) 1A8250-65310
450_005_L-Side
(D)
! WARNING
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪊㪈㪇
㪮㪘㪩㪥㪠㪥㪞
㪫㪦䇭㪘㪭㪦㪠㪛䇭㪠㪥㪡㪬㪩㪰㪑
䊶㪪㫋㫆㫇㩷㪼㫅㪾㫀㫅㪼㪅
䊶㪪㪼㫋㩷㫇㪸㫉㫂㫀㫅㪾㩷㪹㫉㪸㫂㪼㪅
䊶㪧㪸㫉㫂㩷㫆㫅㩷㫃㪼㫍㪼㫃㩷㪾㫉㫆㫌㫅㪻㪅
䊶㪣㫆㫎㪼㫉㩷㪸㫃㫃㩷㫀㫄㫇㫃㪼㫄㪼㫅㫋㫊
䊶㪩㪼㫄㫆㫍㪼㪸㩷㫂㪼㫐㪅
㩷㫋㫆㩷㫋㪿㪼㩷㪾㫉㫆㫌㫅㪻㪅
㫊㪼㫉㫍㫀㪺㫀㫅㪾㩷㫄㪸㪺㪿㫀㫅㪼㪃
㪙㪼㪽㫆㫉㪼㩷㫃㪼㪸㫍㫀㫅㪾㩷㫆㫉
450_003_ROPS2
(E)
! WARNING
TO AVOID INJURY: Before leaving or servicing machine,
Stop engine.
Set parking brake.
Park on level ground.
Lower all implements to the ground.
Remove key.
1. SAFETY PRECAUTIONS
(E) 1A8250-65350
TO AVOID INJURY OR DEATH FROM ROLLOVER:
Keep Rollover Protective Structure (ROPS)
fully extended.
Do not jump if machine tips.
Use seat belt.
THERE IS NO OPERATOR PROTECTION WHEN THE ROPS IS IN THE FOLDED POSITION.
Fold the ROPS only when absolutely
necessary. When the structure must be down:
• Do not use seat belt.
• Drive with extra care.
㪮㪘㪩㪥㪠㪥㪞
㪫㪦䇭㪘㪭㪦㪠㪛䇭㪠㪥㪡㪬㪩㪰㩷㪦㪩㩷㪛㪜㪘㪫㪟㩷㪝㪩㪦㪤㩷㪩㪦㪣㪣㪦㪭㪜㪩㪑
䊶㪢㪼㪼㫇㩷㪩㫆㫃㫃㫆㫍㪼㫉㩷㪧㫉㫆㫋㪼㪺㫋㫀㫍㪼㩷㪪㫋㫉㫌㪺㫋㫌㫉㪼㩷㩿㪩㪦㪧㪪㪀 㩷㪽㫌㫃㫃㫐㩷㪼㫏㫋㪼㫅㪻㪼㪻㪅
䊶㪛㫆㩷㫅㫆㫋㩷㫁㫌㫄㫇㩷㫀㪽㩷㫄㪸㪺㪿㫀㫅㪼㩷㫋㫀㫇㫊㪅
䊶㪬㫊㪼㩷㫊㪼㪸㫋㩷㪹㪼㫃㫋㪅
㪫㪟㪜㪩㪜㩷㪠㪪㩷㪥㪦㩷㪦㪧㪜㪩㪘㪫㪦㪩㩷㪧㪩㪦㪫㪜㪚㪫㪠㪦㪥䇭㪮㪟㪜㪥䇭㪫㪟㪜 㪩㪦㪧㪪㩷㪠㪪䇭㪠㪥㩷㪫㪟㪜㩷㪝㪦㪣㪛㪜㪛㩷㪧㪦㪪㪠㪫㪠㪦㪥㪅
䊶㪝㫆㫃㪻㩷㫋㪿㪼㩷㪩㪦㪧㪪㩷㫆㫅㫃㫐㩷㫎㪿㪼㫅㩷㪸㪹㫊㫆㫃㫌㫋㪼㫃㫐㩷㫅㪼㪺㪼㫊㫊㪸㫉㫐㪅
㪮㪿㪼㫅㩷㫋㪿㪼㩷㫊㫋㫉㫌㪺㫋㫌㫉㪼㩷㫄㫌㫊㫋㩷㪹㪼㩷㪻㫆㫎㫅㪑
䇭䊶㪛㫆㩷㫅㫆㫋㩷㫌㫊㪼㩷㫊㪼㪸㫋㩷㪹㪼㫃㫋㪅
䇭䊶㪛㫉㫀㫍㪼㩷㫎㫀㫋㪿㩷㪼㫏㫋㫉㪸㩷㪺㪸㫉㪼㪅
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪊㪌㪇
Lx410/450/490 Operator's Manual
1-14
1. SAFETY PRECAUTIONS
1a8250-6520 RIGHT
(F)
RIGHT LEFT
(F)
1a8250-6520 LEFT
! WARNING
(G)
450140205_P14-4_tofc_d2
! WARNING
(F) 1A7880-65610
STAY CLEAR OF ENGINE FAN AND FAN
BELT.
(G) 198220-65621
AVOID INJURY FROM PTO:
Keep all shields in place.
Keep hands, feet and clothing away.
Operate only with 540 RPM.
STAY CLEAR OF ENGINE FAN AND FAN BELT
WARNING
1A7880-65620
1-15
Lx410/450/490 Operator's Manual
1. SAFETY PRECAUTIONS
(H)
526RMF_410-450
! DANGER
624MF_490
(I)
! DANGER
1A8275-51520_Lx490
(H) 1A8160-51520 (For Lx410/450)
SHIELD EYES. EXPLOSIVE GASES CAN
CAUSE BLINDNESS OR INJURY.
NO SPARKS, FLAMES, SMOKING.
SULFURIC ACID CAN CAUSE BLINDNESS
OR SEVERE BURNS.
FLUSH EYES IMMEDIATELY WITH WATER.
GET MEDICAL HELP FAST.
KEEP OUT OF REACH OF CHILDREN. DO
NOT TIP. DO NOT OPEN BATTERY!
540
45
(I) 1A8275-51520 (For Lx490)
SHIELD EYES. EXPLOSIVE GASES CAN
CAUSE BLINDNESS OR INJURY.
NO SPARKS, FLAMES, SMOKING.
SULFURIC ACID CAN CAUSE BLINDNESS
OR SEVERE BURNS.
FLUSH EYES IMMEDIATELY WITH WATER.
GET MEDICAL HELP FAST.
KEEP OUT OF REACH OF CHILDREN. DO
NOT TIP. DO NOT OPEN BATTERY!
1A8160-51520_Lx450
650
55
Lx410/450/490 Operator's Manual
1-16

2. SERVICE THE TRACTOR

P1110717
(A)
P1120057
(B)
450_004_ROPS3
1a8250-65821
(C)
2. SERVICE THE TRACTOR
Your Yanmar tractor dealer is committed to provide reliable and quality services to the tractor. Through the preceding services, the full performance potential of the tractor can be realized.
After carefully studying the contents of the Operator's Manual, the tractor owner/operator can perform certain regular maintenance work.
Exercise caution so as not to injure the operator and other persons.
Do not attempt to do work that is beyond the owner/ operator capability and knowledge.
When in doubt, always consult YOUR LOCAL YANMAR TRACTOR DEALER.
For information about servicing, contact YOUR LOCAL YANMAR TRACTOR DEALER.
For new parts and components and major service work, contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
When ordering a part or component, always provide the serial numbers of the following to YOUR LOCAL YANMAR TRACTOR DEALER:
Tractor
Engine
Roll-Over Protective Structure (ROPS)
After accepting delivery of the tractor, immediately find the serial numbers and enter the numbers into the following table.
The information in the table must come in handy, if for some reason, the serial numbers on the tractor are covered, erased or become illegible.
㪤㫆㪻㪼㫃㪑㪝㪤㪇㪈㪊
㪫㫉㪸㪺㫋㫆㫉㩷㪤㫆㪻㪼㫃㪑
㪣㫏㪋㪈㪇 㪣㫏㪋㪌㪇 㪣㫏㪋㪐㪇
㪫㫉㪸㪺㫋㫆㫉
㪩㪼㪽㪼㫉㪼㫅㪺㪼
㪤㪸㫊㫊
㪋㪃㪇㪇㪊㪅㪌㪣㪙㪪
㩿㪈㪃㪏㪈㪍㪢㪞㪀
㪫㪿㫀㫊㩷㪩㪦㪧㪪㩷㪿㪸㫊 㪹㪼㪼㫅㩷㫋㪼㫊㫋㪼㪻㩷㫀㫅 㪸㪺㪺㫆㫉㪻㪸㫅㪺㪼㩷㫎㫀㫋㪿 㪪㪘㪜㩷㪡㪉㪈㪐㪋㪃 㪦㪪㪟㪘㪑㪉㪐㪚㪝㪩㩷㪧㪸㫉㫋 㪈㪐㪉㪏㩷㪪㫌㪹㫇㪸㫉㫋㩷㪚
㪰㪘㪥㪤㪘㪩㩷㪚㪦㪅㪃㩷㪣㪫㪛
㪦㫊㪸㫂㪸㪃㩷㪡㪸㫇㪸㫅
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪏㪉㪈
2-1
Lx410/450/490 Operator's Manual
2. SERVICE THE TRACTOR
450_007_ROPS
(D)
Type/Model Serial No. Tractor Engine Roll-Over Protective
Structure (ROPS) Date of Purchase Name of Dealer
(A)Tractor identification plate with tractor serial
number (B)Engine serial number (C)Roll-Over Protective Structure (ROPS) model (D)Roll-Over Protective Structure (ROPS) serial
number
Lx410/450/490 Operator's Manual
2-2

3. SPECIFICATIONS

3. SPECIFICATIONS

1. Specifications Table

Model Lx410 Lx450 Lx490
Power Take Off (PTO) Power: Estimated Average
Maker YANMAR Model 4TNV88 4TNV88 4TNV84T Type 4 Cycle Inline, Water-Cooled Diesel Aspiration Without Turbo Charged Turbo Charged Number of Cylinders 4 4 4
Bore and Stroke in. (mm)
Engine
Capacities
Dimensions
Weight (with Roll-Over Protective Structure (ROPS) and R4 Tires)
Total Displacement cu. in. (L) 133.5 (2.189) 133.5 (2.189) 121.7 (1.995) Gross Power:
EPA Regulation Net Power hp (kW) ­Rated Revolution rpm 2700 2700 2600 Maximum Torque ft•lbs (N•m) 94.2 (124.9) 104.4 (141.6) 113.6 (154.2) Battery 540 CCA 540 CCA 650 CCA Fuel Diesel Fuel: Ultra Low Sulfur Fuel Tank US gal (L) 11.9 (45) 11.9 (45) 11.9 (45) Engine Oil US qt. (L) 5.6 (5.3) 5.6 (5.3) 5.6 (5.3) Engine Coolant US qt. (L) 5.1 (4.8) 5.1 (4.8) 5.1 (4.8) Transmission Oil US gal (L) 8.5 (32) 8.5 (32) 8.5 (32) Front-axle Oil US gal (L) 2.3 (8.8) 2.3 (8.8) 2.3 (8.8) Overall Length
(with 3-Point Hitch) Overall Width
(with R4 Tires) Overall Height
(with Roll-Over Protective Structure (ROPS), R4 Tires)
Overall Height (with R4 Tires) (Top of Steering Wheel)
Wheel Base in. (mm) 74.8 (1900) Min. Ground Clearance
(with R4 Tires) Tread
(with R4)
Front in. (mm) 51.7 (1314) Rear in. (mm) 51.9 (1319)
hp (kW) 30.4 (22.7) 34.3 (25.6) 36.8 (27.5)
3.46 × 3.54 (88 × 90)
hp (kW) 41.3 (30.8) 45.3 (33.8) 48.5 (36.2)
in. (mm) 131.7 (3345)
in. (mm) 69.5 (1764)
in. (mm) 96.1 (2440)
in. (mm) -
in. (mm) 15.5 (393)
lb. (kg) 3585 (1626) 3618 (1641)
3.46 × 3.54 (88 × 90)
- -
3.31 × 3.54 (84 × 90)
3-1
Lx410/450/490 Operator's Manual
3. SPECIFICATIONS
Traveling System
Traveling System
Hydraulic Unit
Power Take Off (PTO)
Ag (R1)
Tire
Clutch Hydrostatic Multi Plate Disk Steering Hydrostatic Power Transmission Full Synchro Main, 3 Range Brake Wet Disk Minimum Turning Radiu s ft. (m) 9.19 (2.8) Hydraulic Control System Position Control, Open Center
Pump Capacity (main)
Pump Capacity (steering) 3-Point Hitch Category 1
Max. Lift Force
System Pressure psi (MPa) 2429 (16.7) Type Independent Shaft size 35 mm OD, 6 Splines.
Speed/Engine rpm
Tur f (R3)
Industrial (R4)
Lift Point lb. (kg) 3197 (1450) 24 in. Behind
Lift Point
Front 8 - 16 - 6 ply Rear 14.9 - 24 - 6 ply Front 27 × 10.5 - 15 - 4 ply Rear 44 × 18.00 - 20 - 4 ply Front 10 - 16.5 - 6 ply Rear 17.5L - 24 - 6 ply
US gal/min
(L/min)
US gal/min
(L/min)
lb. (kg) 2756 (1250)
563/2700 563/2700 542/2600 540/2592 540/2592 540/2592
9.0 (34.1) 8.6 (32.8)
6.8 (25.6) 6.5 (24.7)
Lx410/450/490 Operator's Manual
3-2

2. Traveling Speeds

Range Primary gear lever Range gear lever
F1 1 1 0.968 1.557 F2 1 2 1.345 2.165 F3 1 3 1.720 2.768 F4 2 1 2.254 3.627 F5 2 2 2.388 3.842 F6 2 3 3.320 5.343 F7 3 1 4.246 6.831 F8 3 2 5.562 8.950 F9 3 3 7.115 11.448
F10 4 1 9.895 15.921
F11 4 2 12.652 20.357
F12 4 3 16.576 26.671
R1 1 1 0.965 1.553 R2 1 2 1.342 2.160 R3 1 3 1.716 2.761 R4 2 1 2.248 3.618 R5 2 2 2.382 3.832 R6 2 3 3.312 5.330 R7 3 1 4.235 6.814 R8 3 2 5.549 8.928
R9 3 3 7.098 11.420 R10 4 1 9.871 15.882 R11 4 2 12.621 20.307 R12 4 3 16.535 26.605
3. SPECIFICATIONS
(At rated engine Revolutions Per Minute (rpm))
Lx410/450
Approximately rated speed mph km/h
NOTE
The traveling speeds listed above are for when the tire size is R1.
3-3
Lx410/450/490 Operator's Manual
3. SPECIFICATIONS
(At rated engine Revolutions Per Minute (rpm))
Lx490
Range Primary gear lever Range gear lever
F1 1 1 0.932 1.499 F2 1 2 1.296 2.085 F3 1 3 1.657 2.666 F4 2 1 2.170 3.492 F5 2 2 2.299 3.699 F6 2 3 3.197 5.145 F7 3 1 4.088 6.578 F8 3 2 5.356 8.619 F9 3 3 6.852 11.024
F10 4 1 9.528 15.331
F11 4 2 12.183 19.603
F12 4 3 15.962 25.683
R1 1 1 0.929 1.495
R2 1 2 1.292 2.080
R3 1 3 1.653 2.659
R4 2 1 2.165 3.484
R5 2 2 2.294 3.690
R6 2 3 3.190 5.132
R7 3 1 4.078 6.562
R8 3 2 5.343 8.597
R9 3 3 6.835 10.997 R10 4 1 9.505 15.293 R11 4 2 12.153 19.555 R12 4 3 15.923 25.620
Approximately rated speed mph km/h
NOTE
The traveling speeds listed above are for when the tire size is R1.
Lx410/450/490 Operator's Manual
3-4

4. IMPLEMENT CAPACITIES

A3013714
4. IMPLEMENT CAPACITIES
Prior to delivery, the tractor is subjected to the load tests described below.
The tests are designed to ensure the tractor performs safely and to specification when subjected to various
loads and stresses.
Genuine implements approved by Yanmar are used.
IMPORTANT
Use only implements approved by YOUR LOCAL YANMAR TRACTOR DEALER.
A ll imple m en ts us ed mu st confo rm to th e ap pr ov ed spe cifications, per below.
Using unapproved implements can result in malfunction, failure and damage to the tractor.
The preceding action can also increase the possibility of injury to the operator or other people. The Yanmar
warranty does not cover any malfunction or failure that results from the use of an unapproved implement.
.
Lower Link End
Maximum Lifting
Capacity
W
0
lb. 3197 kg 1450 500 2500
Implement Weight
and Size
W
1
As specified in the list
shown in the next page
Maximum Drawbar Load
W
2
1102 5512
Trailer Loading Weight
Maximum Capacity
W
3
W0
W1
W2 W3
4-1
Lx410/450/490 Operator's Manual
Implement Description Unit Maximum Amount
Trailer
Rotary-Cutter
Mower
Finish Mower
Rotary Tiller
Box Scraper
Rear Blade
Landscape Rake
Loader
Backhoe
4. IMPLEMENT CAPACITIES
Load Capacity lb. (kg) 5512 (2500) Drawbar Load lb. (kg) 1102 (500) Cutting Width in. (mm) 72 (1829) Weight lb. (kg) 602 (273) Cutting Width in. (mm) 72 (1829) Weight lb. (kg) 600 (272) Tilling Width in. (mm) 74 (1880) Weight lb. (kg) 800 (363) Cutting Width in. (mm) 84 (2134) Weight lb. (kg) 630 (286) Cutting Width in. (mm) 84 (2314) Weight lb. (kg) 294 (133) Cutting Width in. (mm) 84 (2134) Weight lb. (kg) 274 (124) Lift Capacity (at Pivot) lb. (kg) 2493 (1133) Overhang (Pivot ~ Front Tire Center) in. (mm) 46.3 (1176) Weight (without Bucket) lb. (kg) 828 (375) Digging Depth ft. (mm) 8.5 (2550) Weight lb. (kg) 1650 (748)
Lx410/450/490 Operator's Manual
4-2

5. NAMES AND FUNCTIONS OF COMPONENTS

(22)
450_P1080900
450_000_Lx
(1)
(2) (3) (4)
(5)
(6)
(7)
v30_w_c5_n2
(8)
(9) (9)
(8)
(10) (11)
(12) (13)
(15) (16)
(17)(17)
(16)
(19)
(18)
(14)
(20)
v30_w_c5_P1090034
(21)
5.
NAMES AND FUNCTIONS OF COMPONENTS

1. Overview

Names of Main Components

(1) Front tires (2) Headlights (3) Side lights (4) Hood (5) Roll-Over Protective Structure (ROPS) (6) Fender (7) Rear tires (8) Tail lights (9) Turn signal/hazard lights (10)Fuel filler cap (11)Slow Moving Vehicle (SMV) emblem
(12)Top link (13)Top link hook (14) Lift link right (15)Power Take Off (PTO) shaft (16)Implement sliding stabilizer (17)Lower links (18)Adjustment box (19)Drawbar (20)Lift link left (21)Operator seat back pocket (22)Operator seat
5-1
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
v30wc5‑n2P1090034
(A)
450P1080900
(c)
(A)
(a)
(b)
(d)
PRESS
450P1090030
(e)
(f)

Functions of Main Components

(1) Front tires
Support the front part of the tractor and allows the tractor to roll.
(2) Headlights
Provide illumination in front of the tractor.
(3) Side lights
Provide illumination at the side of the tractor.
(4) Hood
Covers and protects the engine.
(5) Roll-Over Protective Structure (ROPS)
Protect the operator in the event of an accident such as a roll over.
(6) Fender
Keeps mud away from the operator.
(7) Re a r ti re s
Supports the back part of the tractor and allows the tractor to roll.
(16)Implement sliding stabilizer
Component that vertically stabilizes a hitched implement.
(17)Lower links
Connects and holds an implement.
(18)Adjustment box
Raise or lower to the desire height of the implement.
(19)Drawbar
Use to pull/tow an implement.
(20)Lift link left
Non-adjustable link.
(21)Operator seat back pocket
Hold the Operator's Manual.
(8) Tail lights
Provide illumination at the rear of the tractor.
(9) Turn signal/hazard lights
Use to warn people that tractor is about to turn left or right. Use to warn people of an emergency situation.
(10)Fuel filler cap
Where the fuel nozzle is inserted to fill up the fuel tank.
(11)Slow Moving Vehicle (SMV) emblem
Identify the tractor as a slow moving vehicle to other motorists.
(12)Top link
Use to adjust angle or position of an implement.
(13)Top link hook
Hold the top link when the top link is not in use.
(14)Lift link right
Adjustable link.
(15)Power Take Off (PTO) shaft
Transmit rotational force from the tractor to an implement.
Lx410/450/490 Operator's Manual
(A)Operator seat back pocket
(22)Operator seat
Sits the operator and from where the operator can easily control the tractor instruments.
(A)Operator seat
(a) Operator seat firmness suspension knob (b) Operator seat suspension stroke adjustment (c) Operator seat forward and backward lever (d) Retractable seatbelt
(e) Retractable seatbelt quick release bu tton (f) Backrest lever
5-2
5. NAMES AND FUNCTIONS OF COMPONENTS
40 IMG_4473
(29) (30)
(31)
v30_w_c5_n1_P1090027
(21)
(22)
(23) (24)
(25)
(26)
(27)
(28)
(8)
(7)
(9)
(10) (11)
(12) (13) (14)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
P5-3 top view _1
(1) (2) (3)
(4) (5) (6)

2. Operator Station Controls

Names of Components

(1) Clutch ped al (2) Forward/N/reverse lever (3) Hazard lights bu tton switch (4) Headlights, side lights and tail lights/turn signal
switch (5) Throttle control lever (6) Accelerator pedal (7) Starter key switch (8) Implement control lever (9) Implement control lever lock (10) Power Take Off (PTO) switch (11) Console box (12) Position stop knob (13)3-point hitch control lever (14) Operator seat arm rest (15)12V DC outlet (16)Cup holder
(17)Range gear lever (18)2WD/4WD lever (19)Primary gear lever (20)Tilt pedal (21)Operator seat (22)Backrest lever (23)Operator seat firmness suspension knob (24)Operator seat suspension stroke adjustment
knob (25)Hydraulic flow control/stop knob (26)Differential lock pedal (27)Operator seat forward and backward lever (28)Retractable seatbelt (29)Brake pedal connector lock (30)Brake pedals (31) Parking brake lock lever
5-3
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
v30_w_c5_P34-n1_P1080277
(A)
12 P1080942
(b)
(c)
(A)
(a)
(A)
(a) (b)
v30_w_c5_P34-n4_P1080974

Function of Components

(1) Cl u tc h pe d al
Engages or disengages the rotational force of the engine to the transmission.
(A)Clutch pedal
(2) Forward/N/reverse lever
Change the direction of the tractor's movement.
(A) Forward/N/reverse lever
(a) Forward (b) N (neutral) (c) Reverse
(3) Hazard lights button switch
Turn ON or OFF the hazard lights.
(A)Hazard lights button switch
(a) ON (b) OFF
Lx410/450/490 Operator's Manual
5-4
5. NAMES AND FUNCTIONS OF COMPONENTS
v30_w_c5_P34-n3_P1080271
(A)
OFF
P1080271 8
(A)
(a)
(b)
1
0
5
5
2
2
15_ IMG 4500
(A)
(a)
(b)
Accelerator_pedal
(A)
(4) Headlights, side lights and tail lights/turn signal
switch
Position 1: - All lights OFF
Position 2: - All lights ON
Headlights: Low beam
Position 3: - All lights ON Headlights: High beam
(A)Headlights, side lights and tail lights/turn signal
switch
(5) Turn Signals
(A)Turn signal lever
(a) Push the turn signal lever upward: to signal an
intention to turn left.
(b) Push the turn signal lever downward: to signal an
intention to turn right.
(6) Throttle control lever
Increases or decreases the engine speed (Revolutions Per Minute (rpm)) rate.
(A)Throttle control lever
(a) Increase the engine speed (Revolutions Per Minute
(rpm))
(b) Decrease the engine speed (Revolutions Per Minute
(rpm))
(7) Accelerator pedal
Increases or decreases the engine speed Revolutions Per Minute (rpm) rate.
(A)Accelerator pedal
5-5
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
45007018 Starter
(A)
450_009_ICLever
(A)
450_009_ICLLock
(A)
(a)
(b)
14-13_PTO_SW_1
(A)
(a) (b)
(8) Starter key switch
Start and/or shut off the engine.
(A)Starter key switch
(9) Implement control lever
Control the loader.
(A)Implement control lever
(10)Implement control lever lock
Lock the implement control lever to the N (neutral) position.
(A)Implement control lever lock
(a) Locked position (b) Unlocked position
(11)Power Take Off (PTO) switch
Turn ON or OFF the Power Take Off (PTO).
(A)Power Take Off (PTO) switch
(a) ON position (b) OFF position
Lx410/450/490 Operator's Manual
5-6
5. NAMES AND FUNCTIONS OF COMPONENTS
Console_box
(A)
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪋㪎㪇
3P_hitch_lever_3
(A)
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪋㪎㪇
PositionStopKnob_4
(A)
v30_w_c5_P40-n1_IMG 4466
(A)
(12)Console box
The place where the Operator's Manual is kept.
(A)Console box
(13)3-point hitch control lever
Control the height of the lower links.
(A)3-point hitch control lever
(14)Position stop knob
Hold the 3-point hitch control lever to a specific position.
(A)Position stop knob
(15)Operator seat arm rest
Use to rest the operator's arms.
(A)Operator seat arm rest
5-7
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
12V DC
(A)
Cup_holder01
(A)
IMG_4479 2
(A)
(16)12V DC outlet
Outlet used for 12V DC supply.
(A)12V DC outlet
NOTE
Avoid using the 12V DC outlet as cigarette lighter.
(17)Cup holder
The place where a cup is held.
(A)Cup holder
(18) Range gear lever
Change the range gear setting.
(A)Range gear lever
1
N
2
3
N
4
Lx410/450/490 Operator's Manual
5-8
5. NAMES AND FUNCTIONS OF COMPONENTS
IMG_4479 3
(A)
(a)(b)
v30_w_c5_P-35-n2_IMG 4480
(A)
v30_w_c5_P39-n1_P1080277
(A)
(a)
(b)
v30_w_c5_n1_P1090027
(A)
(19)2WD/4WD lever
Engages or disengages the 4-wheel drive.
(A)2WD/4WD lever
(a) Engage position (b) Disengage position
(20)Primary gear lever
Shift the primary gear.
(A)Primary gear lever
1
N
2
3
N
4
(21)Tilt pedal
Change the inclination angle of the steering wheel.
(A)Tilt pedal
(a) Locked position (b) Unlocked position
(22)Operator seat
Station where the operator sit to operate the tractor.
(A)Operator seat
5-9
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
PRESS
32 P109030
(A)
(b)
(a)
33 P1080900
(A)
(a)
(b)
(A)
34 P1080900
(a)
(b)
35 P1080310
(A)
(a)
(b)
(23)Backrest lever
Adjust the inclination of the backrest.
(A)Backrest lever
(a) Unlock the operator seat backrest (a) Lock the operator seat backre st
(24)Operator seat firmness suspension knob
Adjust the firmness or softness of the operator seat.
(A)Operator seat firmness suspension knob
(a) Firmer (b) Softer
(25)Operator seat suspension stroke adjustment
knob
Adjust the height of the operator seat.
(A)Operator seat suspension stroke adjustment knob
(a) Decrease (b) Increase
(26)Hydraulic flow control/stop knob
Increases/decreases and closes/opens the hydraulic circulation of the 3-point hitch.
(A)Hydraulic flow control/stop knob
(a) Close - stop (b) Open
Lx410/450/490 Operator's Manual
5-10
5. NAMES AND FUNCTIONS OF COMPONENTS
(A)
36 P1080310a
(b)
(a)
37 P1080900
(A)
(a)
(b)
45005228
(A)
39 IMG_44733
(A)
(a)
(b)
(27)Differential lock pedal
Engages or disengages the differential lock.
(A)Differential lock pedal
(a) Lock position (b) Unlock position
(28)Operator seat forward and backward lever
Adjust the operator seat to the forward or backward position.
(A)Operator seat forward and backward lever
(a) Unlock (b) Lock
(29)Retractable seatbelt
Keep the operator safe while operating the tractor.
(A)Retractable seatbelt
(30)Brake pedal connector lock
Locks the left and the right brake pedals together.
(A)Brake pedal connector lock
(a) Locked position (b) Unlocked position
5-11
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
40IMG 4473
(A)
4 IMG_4473a
(A)
(a)
(b)
(31)Brake pedals
Reduce the speed and stop the tractor.
(A)Brake pedal
(32)Parking brake lock lever
Engage the parking brake.
(A)Parking brake lock lever
(a) Lock (b) Unlock
Lx410/450/490 Operator's Manual
5-12
5. NAMES AND FUNCTIONS OF COMPONENTS
42 P1080979
(1) (2)
(4)
(5)(6)(8)
(9)
(10)
(11)
(2)
(7)
(3)

3. Instrument Panel

1
5
0
1
0
5
0
2
5
2
0
3
(1) Forward/N/reverse lever N (neutral) indicator
light
Indicates the forward/N/reverse lever is in the N (neutral) position.
(2) Turn signal/hazard indicator lights
Indicates when the corresponding turn signal/hazard lights is illuminated/flashing.
NOTE
The hazard lights remain flashing even when the starter key switch is in the OFF position.
Allowing the turn signal/hazard lights to flash for an extended period can lead to loss of battery voltage.
(3) Power Take Off (PTO) indicator light
Power Take Off (PTO) indicator light illuminates when Power Take Off (PTO) switch is in the ON position.
(4) Parking brake indicator light
Indicate parking brake is engaged.
(5) Coolant temperature gauge
Indicate the current coolant temperature. If the needle points to within the red zone, the engine is too hot.
IMPORTANT
Decrease the load on the tractor:
• when the pointer on the coolant temperature gauge reaches the abnormally high temperature
• when the pointer on the coolant temperature gauge jumps up or rapidly increases
To lower the coolant temperature:
• idle the engine until the reading on the gauge falls to the green zone
• shut off the engine
• allow the engine to cool down
After the preceding actions, check the following:
• the coolant level in the radiator and in the reserve tank are adequate
• the radiator and radiator screen are free from dust deposits
• the alternator/fan belt tension is correct
NOTE
In some cases, even when the parking brake lock lever appears to be in the "LOCKED" position, the parking brake itself may not be actually securely locked.
For details, see “Chapter 14. PERIODIC SERVICE” on page 14-1.
If the pointer on the coolant temperature gauge enters the red zone or the reading rapidly
5-13
increases again:
• shut down the engine
• immediately contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance
Lx410/450/490 Operator's Manual
5. NAMES AND FUNCTIONS OF COMPONENTS
(6) Hour meter
Indicate the total accumulated operating hours.
(7) Tachometer
Indicates the current engine speed in increments of 100 Revolutions Per Minute (rpm).
(8) Fuel gauge
Indicates how much fuel is in the fuel tank.
(9) Glow plug indicator light
Indicates the engine is still being preheated.
(10)Alternator/Battery charging light
Illuminates when:
The starter key switch is in the ON position and the engine is not running.
The alternator/battery charging circuit is out of order.
IMPORTANT
While the engine is running, an illuminated alternator/battery charging light indicates the power generated by the alternator is too low.
• fully push the throttle control lever forward
• increase the engine speed
If the light still remains illuminated:
• immediately shut down the engine
• contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assist ance
(11)Engine oil pressure warning light
The engine oil pressure warning light remains illuminated when:
The starter key switch is in the ON position and the engine is not running.
The engine oil pressure is abnormal.
IMPORTANT
While the engine is running, an illuminated engine oil pressure warning light indicates the engine oil pressure is too low.
• immediately shut down the engine
• contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assist ance
Lx410/450/490 Operator's Manual
5-14

6. PRE-OPERATION CHECK

6. PRE-OPERATION CHECK

1. Pre-Operation Check
1. Check the tractor for damage, excessive wear, cracks, missing parts, leaks, exposed wiring and any other problems.
2. Check the joints and connections for tight fit.
3. Make sure all the lights illuminates and functions correctly.
4. Make sure all the safety alert decals are in correct positions.
5. Correct any problem detected.
6. Contact YOUR LOCAL YANMAR TRACTOR DEALER for problems that can not be solve.
Avoid operating the tractor when a problem has been indicated.

2. Precautions Before Operation

1. Always be aware of the performance limitations of the tractor.
2. Operate only within the limitations.
3. When operating the tractor, always maintain a “SAFETY FIRST!” approach.

4. Prevent Damage to Plastic Surfaces and Painted Surfaces

1. To prevent scratches and discolorations on the surfaces:
• Wipe the tractor only after thoroughly washing the surfaces.
2. Chemical substances such as pesticid es ca n damage the plastic surfaces and painted surfaces.
• Avoid spraying chemical substances on and near the tractor.
3. Avoid spilling diesel fuel onto the tractor.
• Diesel fuel can damage the plastic surfaces and painted surfaces.
• Immediately wipe off spilled diesel fuel.

3. Routine Checks

1. Check the safety features.
2. Check the tire air pressure.
3. Make sure the remaining diesel fu el is sufficie nt for the intended operation.
4. Check the engine oil level.
5. Check the transmission hydraulic oil level.
6. Check the coolant level.
7. Remove grass clippings and debris from the tractor.
8. Clean the air filter element.
9. Check any liquid leaks such as oil, coolant and fuel.
10.Check the radiator for possible blockage.
11.Check the retractable seatbelt for any problem/s.
12.Check Roll-Over Protective Structure (ROPS) for any problem/s.
13.Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
6-1
Lx410/450/490 Operator's Manual

7. OPERATE THE ENGINE

! WARNING
! WARNING
7. OPERATE THE ENGINE

1. Start the Engine

Always run or idle the engine in a well ventilated area:
To prevent serious illness or death, caused by the colorless and odorless carbon monoxide emitted by the engine.
Always remain seated on the operator seat when:
• starting the engine
• operating the levers and controls
Before starting the engine, always ensure:
• the primary gear lever is in the N (neutral) position
• range gear lever is in the N (neutral) position
• forward/N/reverse lever is in the N (neutral) position
• the parking brake lock is engaged
• Power Take Off (PTO) switch in the OFF position
Always keep the retractable seatbelt fastened:
• whenever the Roll-Over Protective Structure (ROPS) is in the unfolded "up" position and locked securely
Start the engine only with the starter key switch.
• avoid starting the engine by short circuiting across the starter solenoid terminals with a jumper wire
• by bypassing the safety start switch
Before operation, ensure all the safety features are functioning correctly. Make correctio ns as necessary.
Always observe the following precautions when starting the engine.
• before starting and during running the engine:
• always drive the tractor outside or to a
well ventilated area
• to prevent serious illness or death caused
by the carbon monoxide contained in the exhaust of the engine
To prevent explosions, always use only diesel fuel to start the engine.
In cold weather, use the Intake Air Heater System to help the engine start more smoothly.
To prevent injury or death from a runaway tractor:
• avoid starting the engine by short circuiting across the starter solenoid terminals with a jumper wire
• the tractor starts in gear and begins to move when the normal circuitry is bypassed
When starting the engine:
• always remain seated on the operator seat with the transmission in the N (neutral) position
• do not under any circumstances attempt to start the engine while the operator is still on the ground
Lx410/450/490 Operator's Manual
NOTE
When the temperature is below 40°F (5°C), for details, see "Start the Engine in Cold Weather" on page 7-8.
7-1
7. OPERATE THE ENGINE
v30_w_c5-n2
(A)
(a)
(b)
34 P1080900
(A)
(a)
(b)
33 P1080900
(A)
(a)
(b)
1. Open/Close the Fuel Shut-Off Valve
1. To open the fuel shut-off valve: Turn the fuel shut­off valve to the ON (open) position.
2. To close the fuel shut-off valve: Turn the fuel shut-off valve to the OFF (closed) position.
(A)Fuel shut-off valve
(a) OFF (closed) position (b) ON (open) position
2. Get on the Tractor
1. Always use the step located on the left side of the tractor to climb on the tractor.
2. Sit on the operator seat.
(A)Operator seat suspension stroke adjustment
knob
(a) Decrease (b) Increase
4. Operator seat firmness suspension knob
• Turn the operator seat firmness suspension knob clockwise to make the operator seat suspension firmer.
• Turn the operator seat firmness suspension knob counterclockwise to make the operator seat suspension softer.
3. Adjust the Operator Seat
1. Sit on the operator seat.
2. Operator seat forward and backward lever.
• Move the operator seat forward and backward lever to set the optimal position.
• the operator seat can be adjusted to 14
different positions in 0.47 in. (12 mm) increments
3. Operator seat suspension stroke adjustment knob
• While the operator is sitting on the operator seat:
• turn the operator seat suspension stroke
adjustment knob clockwise to decrease the stroke (minimum: 1.57 in. (40 mm))
• turn the operator seat suspension stroke
adjustment knob counterclockwise to increase the stroke (maximum: 3.15 in. (80 mm))
7-2
(A)Operator seat firmness suspension knob
(a) Firmer (b) Softer
Lx410/450/490 Operator's Manual
7. OPERATE THE ENGINE
PRESS
32 P1090030
(A)
(a)
(b)
37 P1080900b
(b)
(a)
(c)
(d)
(A)
! WARNING
! CAUTION
5. Backrest lever
• Unlock the backrest lever to set the backrest inclination to a position that is the most suitable for driving.
(A)Backrest lever
(a) Unlock the operator seat backrest (b) Lock the operator seat backre st
NOTE
While sitting:
Make sure the control levers and knobs can be comfortably operated.
Readjust the operator seat position as necessary.
4. Fasten the Retractable Seatbelt
Always keep the retractable seatbelt fastened:
• while operating the tracto r wi th the Roll­Over Protective Structure (ROPS) in the unfolded "up" position
The preceding action reduces the possibility of injury or death in the event of an accident such as an overturn or roll over.
Do not under any circumstances use the retractable seatbelt when operating the tractor:
• without the Roll-Over Protective Structure (ROPS)
• with the Roll-Over Protective Structure (ROPS) in the folded "down" position
1. Pull out the retractable seatbelt from the retracted position located on the right side of the operator seat.
2. Fasten the retractable seat be lt to th e bu ckle located on the left side of the operator seat.
(A)Operator seat forward and backward lever
(a) Toward the front (b) Toward the rear (c) Unlock (d) Lock
NOTE
Do not twist the retractable seatbelt.
3. Adjust the retractable seatbelt to the suitable length.
NOTE
Release the retractable seatbelt by pressing the retractable seatbelt quick release button.
Hold the retractable seatbelt with the right hand when pressing the retractable seatbelt quick release button.
The retractable seatbelt flies to the right which is highly dangerous.
Lx410/450/490 Operator's Manual
7-3
7. OPERATE THE ENGINE
4500528
(A)
(B)
! WARNING
41 IMG_4473c
(A)
(b)
(a)
4 IMG_4473a
(A)
(B)
(C)
v30_w_c5-P35_n2_IMG_4480
(A)
(A)Retractable seatbelt (B)Buckle
Positioning the retractable seatbelt far away from the operator's abdominal area can be dangerous in the event of an accident.
Always ensure the retractable seatbelt is in the lowest possible position relative to the operator's abdominal area.
The retractable seatbelt must be used only by the operator.
Do not under any circumstances use the retractable seatbelt for two or more persons.
Do not under any circumstances use the retractable seatbelt to hold an object to the operator's body.
5. Lock the Brake Pedals
1. Release the left and right brake pedals.
2. Move counterclockwise the brake pedal connector lock to lock together the left and right brake pedals.
6. Lock and Set the Parking Brake
1. Use the brake pedal connector lock to connect the left and right brake pedals together.
2. Depress the brake pedals fully.
3. While depressing the brake pedals fully, pull up the parking brake lock lever to lock securely.
4. Remove the foot from the brake pedals.
5. Make sure the parking brake is securely locked.
(A)Brake pedal connector lock (B)Brake pedals (C)Parking brake lock lever
7. Perform the Rest of the Operations
1. Move the primary gear lever to the N (neutral) position.
2. Move the range gear lever to the N (neutral) position.
3. Move the forward/N/reverse lever to the N (neutral) position.
4. Push down Power Take Off (PTO) switch to OFF position.
(A)Brake pedal connector lock
(a) Locked position (b) Unlocked position
7-4
(A)Primary gear lever
Lx410/450/490 Operator's Manual
7. OPERATE THE ENGINE
45007017
(B)
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪋㪎㪇
3P_hitch_lever_3
(a)
(b)
(A)
450_009_ICLever2
(A)
(a)
(b)
5
1
1
0
0
5
5
2
2
15 IMG_4500
(A)
(a)
(b)
450070118 Starter
(A)
(B)
(C)
(B)Power Take Off (PTO) switch
5. Push the 3-point hitch control lever forward to lower any attached implements to the ground.
6. The preceding action prevents the tractor from suddenly rearing up during the starting of the engine.
7. Push the throttle control lever forward from the slow idle position to the 1/3 to 1/2 fast positions.
(A)Throttle control lever
(a) To increase the engine speed, push the throttle
control lever forward.
(b) To decrease the engine speed , pull the throttle
control lever backward.
8. Insert the Key into the Starter Key
Switch and Turn the Key to the ON Position
OFF position:
The engine does not run.
ON position:
The engine oil pressure warning light and the
(A)3-point hitch control lever
(a) Lowest position (b) Highest position
alternator/battery charging light illuminates. The glow plugs indicator light illuminates for 15 seconds, for Lx410/450 models. Air heater indicator light illuminates for 15 seconds for Lx490 model.
NOTE
If the tractor is equipped with the implement control valve, use the implement control lever to lower any attached implements to the ground.
START position:
The starter turns the flywheel to run the engine.
The engine begins to run.
Once the engine is running, release the starter key
switch.
(A)Implement control lever
(a) Lower the implement (b) In levelled position
Lx410/450/490 Operator's Manual
(A)OFF position (B)ON position (C)START position
7-5
7. OPERATE THE ENGINE
0
0
0
0
5
5
5
1
1
2
2
3
42 P1080979
(B)(A)
(C)
(D)
(E)
v30_w_c5-P34_n1_P1080277
(A)
450070118 Starter
(A) (B)
(C)
9. Check the Lights on the Instrument Panel
After the key is turned to the ON position:
The parking brake indicator light turns ON if the
parking brake is engaged.
The engine oil pressure warning light turns ON.
The alternator/battery charging light turns ON.
(A)Neutral indicator light (B)Parking brake indicator light (C)Glow plug indicator light for Lx410/Lx450
model
Air heater indicator light for Lx490 model (D)Alternator/Battery charging light (E) Engine oil pressure warning light
4. Depress the clutch pedal fully.
(A)Clutch pedal
5. Turn and hold the key to the START position.
6. After the engine has successfully started, release the key.
NOTE
If the key is released before the engine started:
• wait until both the starter and engine stop rotating before trying to start the tractor again
NOTE
The engine oil pressure light turns OFF within 5 seconds after the engine has started.
The alternator/battery charging light turns OFF within 10 seconds after the engine is started.
If the neutral indicator light fail to turn on the forward/N/reverse lever is engaged.
IMPORTANT
If the engine oil pressure light fails to turn OFF within 5 seconds after the engine is started:
• shut off the engine and check for the cause.
If no specific cause is detected, but a problem still persists:
• contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assist ance
1. Turn the starter key switch to the ON posit ion .
2. Energize the glow plug for 15 seconds to allow easy starting of the engine.
3. The glow plug indicator light is turned OFF after 15 seconds.
(A)OFF position (B)ON position (C)START position
IMPORTANT
Continuous activation of the starter for more than 20 seconds can damage the starter.
If the engine fails to start within 20 seconds, discontinue activating the starter.
Wait for 2 minutes before trying to restart the engine.
7. Release the clutch pedal slowly.
8. After the engine has started, warm up the engine for 5 minutes at 1200 to 1500 Revolutions Per Minute (rpm) without any load.
7-6
Lx410/450/490 Operator's Manual
7. OPERATE THE ENGINE
5
1
1
0
0
5
5
2
2
15 IMG_4500b
(A)
(B)
4 IMG_4473a
10.Warm Up the Engine in Cold Weather
1. In cold weather, warm up the engine for longer than 5 minutes so the hydraulic system can operate at peak performance.
2. Warm up for a period as specified in the tabl e below.
Temperature (°F (°C)) Warming-up Time (min.)
Over 32 (0) At least 5
32 to 14 (0 to –10) 5 to 10
14 to –4 (–10 to –20) 10 to 15
Below –4 (–20)
NOTE
The engine may run slightly louder and emit pale blue exhaust during warm up.
• the preceding state is normal
• the amount of pale blue exhaust varies depending on the ambient temperature
Idling the engine for a long time wastes fuel and causes carbon accumulation in the engine.
More than 15
11.Idle the Engine
NOTE
Avoid idling the engine for a long time.
Prolong idling wastes fuel and causes carbon to
build up in the engine.
1. Pull the throttle control lever backward to the slow idle (975 Revolutions Per Minute (rpm)) position.
2. Engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4.
(A)Throttle control lever
(B)Parking brake lock lever
Lx410/450/490 Operator's Manual
7-7
7. OPERATE THE ENGINE
! WARNING
v30_w_c5pP35_n2_IMG_4480
(A)
1
3
4
N
N
2
IMG_4479 2
(A)
P1080941 15
(A)
14-13_PTO_SW_2
(A)
(a)

2. Start the Engine in Cold Weather

1. In case the tractor is operated at a temperature lower than 0°F (-18°C), the engine oil and/or transmission hydraulic oil heater can be installed in the tractor.
2. For information about the engine oil and/or transmission hydraulic oil heater, contact YOUR LOCAL YANMAR TRACTOR DEALER.
3. Turn the starter key switch to ON position.
4. Wait for 15 seconds.
5. After the glow plug indicator light goes out, start the engine.

3. Shut Off the Engine

1. Shut off the engine by:
• Depress the clutch pedal fully.
• Depress both brake pedals.
NOTE
Make sure the brake pedals are connected together.
3. Move the range gear lever to the N (neutral) position.
(A)Range gear lever
4. Move the forward/N/reverse lever to the N (neutral) position.
Always depress the brake pedals fully.
2. Move the primary gear lever to the N (neutral) position.
(A)Primary gear lever
(A)Forward/N/reverse lever
5. Push down Power Take Off (PTO) switch to (OFF) position.
(A)Power Take Off (PTO) switch
(a) OFF position
7-8
Lx410/450/490 Operator's Manual
7. OPERATE THE ENGINE
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪋㪎㪇
3P_hitch_lever_3
(a)
(b)
(A)
450_009_ICLever3
(A)
(a)
5
1
1
0
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5
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2
15 IMG_4500b
(A)
3017808
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6. Push the 3-point hitch control lever forward to lower any implements to the ground.
(A)3-point hitch control lever
(a) Lowest position (b) Highest position
NOTE
If the tractor is equipped with the implement control valve:
• use the implement control lever to lower any implements to the ground
7. Engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4.
8. Pull the throttle control lever backward to the slow idle position.
9. Idle the engine at least 2 minutes.
(A)Throttle control lever
10.Turn the starter key switch to the OFF position.
(A)Implement control lever
(a) Lower the implement
IMPORTANT
To prevent injury and property damage:
• always lock the parking brake
• make sure the primary gear lever, forward/N/
(A)Starter key switch
(a) OFF position
11.Remove the key from the starter key switch.
12.Before leaving the operator seat, ensure the engine and all moving parts have stopped.
reverse lever and range gear lever are in the N (neutral) positions
• make sure that the engine is not running
The tractor wheels are free to move when any of the following is in the N (neutral) position:
• primary gear lever
• range gear lever
• forward/N/reverse lever
Lx410/450/490 Operator's Manual
7-9
7. OPERATE THE ENGINE
P5-3 top view_2
(A)
(B)
(C)
(D)
v30_w_c5-n2
(A)
(a)
(b)

4. Restart a Stalled Engine

IMPORTANT
If the engine stalls while operating under load, immediately restart the engine to prevent abnormal heat build up.
1. Depress the clutch pedal fully.
2. Move the forward/N/reverse lever to the N (neutral) position.
3. Move the primary gear lever to the N (neutral) position.
4. Move the range gear lever to the N (neu tral) position.
5. Operator must be properly seated on the operator seat.
6. Push down Power Take Off (PTO) switch to OFF position.
7. Start the engine.
8. Continue with normal operation.
9. Set the engine to idle speed for 1 or 2 minutes before stopping.

5. Start When the Engine Runs Out of Fuel

NOTE
The tractor has a self bleeding fuel system.
Bleeding is automatically performed while the
key is turned to the ON position.
1. Check the fuel tank. Add fuel as necessary.
2. Make sure the fuel filter is still functioning.
3. Make sure the fuel shut-off valve is in the ON (open) position.
4. The fuel is visible in the sediment bowl because the fuel is gravity fed into the fuel filter.
(A)Forward/N/reverse lever (B)Power Take Off (PTO) switch (C)Range gear lever (D)Primary gear lever
(A)Fuel shut-off valve
(a) OFF (closed) position (b) ON (open) position
IMPORTANT
Continuous activation of the starter for more than 20 seconds can damage the starter.
If the engine fails to start within 20 seconds, discontinue activating the starter.
Wait for 2 minutes before trying to restart the engine.
5. Crank the engine for a maximum of 20 seconds.
6. If the engine fails to start within 20 seconds, stop cranking.
7. Wait at least 2 minutes before cranking again.
7-10
Lx410/450/490 Operator's Manual

8. OPERATE THE TRACTOR

! WARNING
8. OPERATE THE TRACTOR
Accident Hazard
A child does not understand the principles of
Always use the drawbar to tow an implement.
Do not under any circumstances attach a load to the axle housing.
danger, nor comprehend imminent dangers and is often attracted to and approach the tractor.
Do not under any circumstances assume a child remain where last seen.
Always decrease the tractor speed before turning:
During traveling on a rough terrain.
Before stopping to prevent the tractor from
overturning.
Do not attempt to turn tractor with the differential lock engaged.
Attempting to turn the tractor while th e differential lock is engaged can lead to the tractor overturning.
Stay clear of ditches, potholes, embankments and ponds.
The tractor can more easily overturn or rollover in soft and wet ground.
Before entering an area covered with tall grass, walk and inspect the area to detect any obstacles.
Remove potentially dangerous obstacles before driving.
Always watch where the tractor is going.
Be alert and exercise extra caution while driving towards an area.
Where the next section is difficult to see, e.g., blind corners, row of trees, or any similar situations.
Always keep a child out of the work area. Make sure a responsible person, other than the operator carefully supervising the child.
If any child enters the current work area, immediately stop the tractor.
Do not under any circumstances allow a child to ride on the moving tractor. The child can tamper with the controls, fall off and be run over by the tractor.
Do not under any circumstances allow a child to operate the tractor.
Do not under any circumstances allow a child to play on the tractor or implements.
Be extremely careful when backing the tractor. Before and during backing, constantly look backward, sideways and downward to ensure no child is behind the tractor.
When two or more people are working in one area:
Regularly communicate and watch each other.
Make sure all persons and implements in the area do not impede or cause injury to each other.
Always ensure the tractor is at a complete stop before attempting to get on or off.
Lx410/450/490 Operator's Manual
8-1
8. OPERATE THE TRACTOR

1. Operate a New Tractor

The service life of the tractor is determined by how well the tractor is operated and maintained.
Prior to delivery, the tractor has been fully tested to ensure that the tractor is operating normally. The manner the tractor is operated during the brea king-in period greatly affects the effective life of the tractor.
To bring about optimal tractor performance and to achieve the longest tractor life, various parts of the tractor have to be properly broken-in.
The following practices must be observed.
Operate the tractor at low speeds for the first 50 operating hours.
Avoid heavy operations and loads.
Strictly observe the following instructions
explained below.

Change the lubricating oil for the new tractor

The quality of the lubricating oil in any new tractor is very important. Parts not fully broken-in may not yet perfectly fit with each other.
Small metal shavings can be created during operation of a new tractor. The shavings can lead to premature wear or damage to tractor parts.
Yanmar recommends changing the lubricating oil earlier than the standard oil change schedule.
For the recommended oil change schedule, for details, see "Chapter 13. MAINTENANCE" on page 13-1.

Always run the tractor at less than full speed during the first 50 hours of operation

Always start and brake the tractor slowly.
In cold weather, always fully warm up the engine
before operating the tractor.
Avoid under any circumstances running the engine at a speed higher than needed.
On rough roads or terrains, drive at low speeds.
NOTE
The preceding practices should also be adopted for all tractors regardless of age to prevent premature tractor breakages and accidents.
8-2
Lx410/450/490 Operator's Manual
8. OPERATE THE TRACTOR
! WARNING
IMG_4628od1
(A)
(B)
(A)
IMG_4634od 3
(B)
2. Raise and Lower the Roll-Over
Protective Structure (ROPS)
Always operate the tractor with the Roll-Over Protective Structure (ROPS) in the unfolded "up" position.
• unless folding the structure is absolutely necessary, e.g., during operation in a low clearance area
Keep the retractable seatbelt fastened while operating the tractor with the Roll-Over Protective Structure (ROPS) in the unfolded "up" position.
• the preceding practice reduces the possibility of injury or death in the event of a roll over accident
If the Roll-Over Protective Structure (ROPS) is not installed (taken off for some reason), always install the structure before operating the tractor.
Always keep the Roll-Over Protective Structure (ROPS) on its original condition. An alteration can impair the protective capacity of the structure.
Immediately replace a damaged Roll-Over Protective Structure (ROPS). Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
Do not under any circumstances use the retractable seatbelt:
• while the Roll-Over Protective Structure (ROPS) is in the folded "down" position
• while the tractor does not have a Roll-Over Protective Structure (ROPS)

Lower (folded "down") the Roll-Over Protective Structure (ROPS)

The Roll-Over Protective Structure (ROPS) can be folded down only by approximately 82.40 degrees.
1. Pull out the hairpin clip from each of the insert
pins located on both sides of the Roll-Over Protective Structure (ROPS).
2. Pull out the insert pins from both sides of the Roll-
Over Protective Structure (ROPS).
Lx410/450/490 Operator's Manual
(A)Hairpin clip (B)Insert pin
3. Lower (folded "down") the Roll-Over Protective
Structure (ROPS).
4. Retaining holes are located on both sides of the
lowered Roll-Over Protective Structure (ROPS). Install the insert pins into the holes.
5. Hole is found at the end of the insert pin. Install
the hairpin clip into the hole.
6. To secure the play-absorbing vibration-insulating
rubber block, pull the upper bolt to the near side and insert the pins.
8-3
8. OPERATE THE TRACTOR
IMG_4628od 1
(C)
(A)
(B)
450_P1080347
(C)
! WARNING

Raise (unfolded "up") the Roll-Over Protective Structure (ROPS)

1. Pull out the hairpin clip from each of the insert
pins located on both sides of the Roll-Over Protective Structure (ROPS).
2. Pull out the insert pins from both sides of the Roll-
Over Protective Structure (ROPS).
3. Raise (unfolded "up") the Roll-Over Protective
Structure (ROPS).
4. Retaining holes are located on both sides of the
Roll-Over Protective Structure (ROPS) in the unfolded "up" position. Install the insert pins into the holes.
5. Insert pin jam hole is located at the end of the
insert pin. Install the hairpin clip into the holes.
6. To secure the play-absorbing vibration-insulating
rubber block, pull the upper bolt to the near side and insert the pins.

3. Operate the Tractor

Before starting or operating the tractor, always ensure there is no bystander or obstacle.
Push down Power Take Off (PTO) switch to OFF position.
Raise any implements.
IMPORTANT
To prevent damage to the transmission, stop the tractor completely before operating the:
• range gear lever
• forward/N/reverse lever
• 2WD/4WD lever
NOTE
There is no need to stop the tractor before operating the primary gear lever.
(A)Insert pin (B)Insert pin jam hole (C)Hairpin clip
1. Sit on the operator seat
Regarding how to adjust operator seat position, for details, see "3. Adjust the Operator Seat" on page 7-2.
Regarding how to fasten the retractable seat be lt, for details, see "4. Fasten the Retractable Seatbelt" on page 7-3.
8-4
Lx410/450/490 Operator's Manual
8. OPERATE THE TRACTOR
P1080271 7
P1080271 8
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P1080974 9
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12 P1080942
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2. Use the headlights, side lights, turn signal switch and hazard lights button switch
The procedures for operating the switches are described below.

Headlights and Side Lights

Rotate the headlights lever upward one notch to
switch the headlights to dim light.
Rotate the headlights lever upward two notches to
switch the headlights to bright light.
3. Use the hazard lights button switch

Hazard Lights

Press the hazard lights button switch to make the
hazard lights flash.
(A)Hazard lights button switc h
4. Start the engine
Regarding on how to start the engine, for details, see "Chapter 7. OPERATE THE ENGINE" on page 7-1.
NOTE
The side lights are always ON when the headlights is ON in dim or bright light.

Turn Signals

(A)Turn signal lever
(a) Push the turn signal lever upward: to signal an
intention to turn left.
(b) Push the turn signal lever downward: to signal an
intention to turn right.
5. Set the forward/N/reverse lever to the N (neutral) position

Forward/N/Reverse Lever

Change the position of the forward/N/reverse lever
to make the tractor move forward or backward.
(A)Forward/N/reverse lever
(a) Forward (b) N (neutral) (c) Reverse
IMPORTANT
Before starting the tractor, set the forward/N/ reverse lever to the N (neutral) pos ition .
Lx410/450/490 Operator's Manual
NOTE
Changing the position of forward/N/reverse lever is allowed without depressing the clutch pedal.
8-5
8. OPERATE THE TRACTOR
! WARNING
P5-3 top view_2
(A)
(B)
(D)
(C)
(E)

Warm Up T ransmission Hydraulic Oil in a Cold Weather Situation

Before warming up the engine, ensure:
The parking brake lock lever is locked.
All the levers in the N (neutral) positions.
Power Take Off (PTO) switch is in the OFF
position.
1. Warm up for 5 minutes after starting the engine.
2. Operate any implement on the tractor only after
warming up the engine.
3. Using the implements while the engine is still cold
(or not fully warmed up), problems such as seizure, breakage or premature wear can occur.
4. The engine oil is distributed through out the
engine during warming up.
5. The hydraulic oil also functions as the
transmission oil.
6. In cold weather, the cold oil has a higher
viscosity, making oil circulation sluggish.
• The hydraulic pressure does not smoothly rise after engine start up.
• The preceding action can cause a problem with the hydraulic system.
7. To prevent the preceding problem:
• Pre-warm the engine at about 50% of the rated Revolutions Per Minute (rpm) for a period of time, as specified in the table below:
Ambient Temperature
(°F (°C))
Over 14 (-10) Approximately 5
5 to 14 (-15 to -10) 5 to 10
-4 to 5 (-20 to -15) 10 to 20
Lower than -4 (-20) Longer than 20
Required warm-up time
(min.)
(A)Forward/N/reverse lever (B)Parking brake lock lever (C)Power Take Off (PTO) switch (D)Range gear lever (E) Primary gear lever
IMPORTANT
Warm up the engine of the tractor before operating any implements.
8-6
Lx410/450/490 Operator's Manual
8. OPERATE THE TRACTOR
3
1
4
2
N
N
IMG_4480 12
(A)
1
3
4
N
N
2
IMG_4479 2
(A)
(a)
6. Select travel speed
1. The tractor may be operated in any gear at engine speeds between 975 and 2920 Revolutions Per Minute (rpm) for Lx 410/450 and 975 to 2810 Revolutions Per Minute (rpm) for Lx 490.
2. Within the preceding range, the engine can be subjected to a variety of load conditions.
IMPORTANT
To prevent transmission damage:
Depress the clutch pedal.
Make sure the tractor has completely stopped
before operating the range gear lever.
Before reversing directions:
• make sure the tractor has completely stopped
Do not under any circumstances rest foot on the clutch while the tractor is in motion.

Primary Gear Lever

Use the primary gear lever to select:
N (neutral)
One of four speed ranges: 1, 2, 3, 4

Range Gear Lever

1. The following gear positions can be selected:
• H-N-M-N-L
2. Use the range gear lever to select one of the g ear position:
• H (fast)
• N (neutral)
• M (medium)
• N (neutral)
• L (slow)
3. One of 12 forward and 12 reverse speeds can be selected, when the range gear lever is used in conjunction with the:
• Primary gear lever
• Forward/N/reverse lever
(A)Primary gear lever
NOTE
Before operating the primary gear lever:
• depress the clutch pedal completely
(A)Range gear lever
(a) Label
NOTE
Before operating the range gear lever:
• depress the clutch pedal when changing gear
• make sure the tractor has completely stopped
Before starting the engine, always place the following levers in the N (neutral) position.
• primary gear lever
• range gear lever
• forward/N/reverse lever
Power Take Off (PTO) switch is in the OFF position.
1. Before operating the range gear lever:
• Depress the clutch pedal.
• Make sure the tractor has completely stopped.
2. Move the following levers to the N (neutral) position:
• Primary gear lever
• Range gear lever
• Forward/N/reverse lever
3. Set the range gear lever, to match the speed range (H-N-M-N-L) with the current work.
Lx410/450/490 Operator's Manual
8-7
8. OPERATE THE TRACTOR
v30_w_c5-P35-n2_IMG_4480
(A)
P1080941 15
(B)
(C)
1
3
4
N
N
2
IMG_4479 2
(D)
1a8250-65560
IMPORTANT
To prevent overloading the engine, always select the appropriate gear and engine speed for the job.
Use a higher gear and lower engine speed for work involving a light load.
Use a lower gear and higher engine speed for work involving a heavy load.
(A)Primary gear lever
(B)Forward/N/reverse lever (C)Clutch pedal
㪫㫉㪸㫍㪼㫃㫀㫅㪾㩷㫊㫇㪼㪼㪻㩷㫎㫀㫋㪿㩷㪘㪞㩷㫋㫀㫉㪼㩿㪈㪋㪅㪐㪄㪉㪋㪀
㪩㪸㫅㪾㪼 㪧㫉㫀㫄㪸㫉㫐
㪈 㪉
㪊 㪋 㪈 㪉
㪊 㪋 㪈 㪉
㪊 㪋
㪥㫆㫋㪼
㪈㪅㪠㫅㪻㫌㫊㫋㫉㫀㪸㫃㩷㫋㫀㫉㪼㩿㪈㪎㪅㪌㪣㪄㪉㪋㪀㩷㫊㫇㪼㪼㪻㩷㫀㫊㩷㪊㩼㩷㫊㫃㫆㫎㪼㫉㩷㫋㪿㪸㫅㩷㪘㪞㩷㫋㫀㫉㪼㩿㪈㪋㪅㪐㪄㪉㪋㪀㪅
㪉㪅㪫㫌㫉㪽㩷㫋㫀㫉㪼㩿㪋㪋㪯㪈㪏㪅㪇㪇㪀㩷㫊㫇㪼㪼㪻㩷㫀㫊㩷㪈㪇㩼㩷㫊㫃㫆㫎㪼㫉㩷㫋㪿㪸㫅㩷㪘㪞㩷㫋㫀㫉㪼㩿㪈㪋㪅㪐㪄㪉㪋㪀㪅
㪊㪅㪩㪼㫍㪼㫉㫊㪼㩷㫊㫇㪼㪼㪻㩷㫀㫊㩷㪇㪅㪊㩼㩷㪪㪣㪦㪮㪜㪩㩷㫋㪿㪸㫅㩷㪽㫆㫉㫎㪸㫉㪻㩷㫊㫇㪼㪼㪻㪅
㪉㪅㪌 㪈㪇㪌㪈
㪉㪅㪌
㪈㪇
㪜㫅㪾㫀㫅㪼㩷㫊㫇㪼㪼㪻
㪤㪠㪥
㪈㪌
㪤㪘㪯
㪌㪋㪇
㪧㪫㪦㩷㫊㫇㪼㪼㪻㩿㫉㫇㫄㪀
㪊㪇㫂㫄㪆㪿
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪌㪍㪇
㪉㪇㪤㪧㪟
4. Use the primary gear lever to match the gear to the power and speed requirements of the current work.
Speed ranges of the primary gear lever
Speed Range Applications
1
2
3
4
Work involving high power at low speed.
Work involving a moderate power and speed.
Work involving high speed and low power.
Work involving higher speed and lower power.
(D)Range gear lever
Speed ranges of the range gear lever
Speed Range Applications
Work involving much power at low
L
M
speed, e.g., mowing tall grass, positioning a backhoe, tilling hard soil, etc.
Work involving a moderate level of hauling; e.g., tilling, and grass mowing.
Work involving high-speed
H
operation, e.g., light mowing and transport.
5. Increase the engine speed if more loads are anticipated.
• A suitable (not excessive) load on the engine is indicated when:
• the engine Revolutions Per Minute (rpm)
increase only slightly when the throttle control lever is moved forward
IMPORTANT
Avoid premature clutch damage.
Avoid depressing the clutch pedal while the
tractor is in motion.
6. To make the load engage smoothly, gradually release the clutch pedal, for the following lever s:
• Range gear lever
• Forward/N/reverse lever
• 2WD/4WD lever
8-8
Lx410/450/490 Operator's Manual
8. OPERATE THE TRACTOR
! WARNING
1
3
4
N
N
2
IMG_4479 4
(A)
(a)(b)

2WD/4WD Lever

Always exercise extreme caution while
operating the tractor on slopes.
Enable the 4-wheel drive in order to increase traction as necessary.
While the 4-wheel drive can improve access to terrain with dangerous slopes, the danger of tipping over is still present.
1. Engage the 4-wheel drive to improve braking on wet, icy, sloped or graveled surfaces.
2. To prevent skidding and loss of steerin g con tr ol, also add weight to the tractor and travel at reduced speeds.
IMPORTANT
Always disengage the 4-wheel drive during driving on a paved surface.
Engage to the 4-wheel drive only as required to prevent premature wear on the front ti re s.
Avoid under any circumstances using tire chain s on the tractor's front wheels, because the tire chains can be thrown against the tractor and cause damage.
3. Use the 2WD/4WD lever to operate the tractor in either the 2-wheel drive or 4-wheel drive.
4. To engage the 4-wheel drive, push the 2WD/4WD lever forward.
• The preceding action connects the mechanical front wheel drive axle to the power train.
Engage the 4-Wheel Drive
1. Before operating the 2WD/4WD lever:
• Depress the clutch pedal.
• Make sure the tractor has completely stopped.
2. Push the 2WD/4WD lever forward to engage the 4-wheel drive.
Disengage the 4-Wheel Drive
1. Before operating the 2WD/4WD lever:
• Depress the clutch pedal.
• Make sure the tractor has completely stopped.
2. Pull the 2WD/4WD lever backward to engage the 2-wheel drive.
NOTE
Before operating the 2WD/4WD lever:
• always depress the clutch pedal
• make sure the tractor has completely stopped
The load on the tractor may have to be reduced before changing from the 4-wheel drive to 2­wheel drive.

Tips on the 4-Wheel Drive

To make sure proper performance unde r all type s
of working conditions, maintain the maximum acceptable tire air pressure in the front tires.
Disengage the 4-wheel drive while transporting the tractor.
Disengaging the 4-wheel drive increases the service life of the front tires.
(A)2WD/4WD lever
(a) 4WD position (b) 2WD position
Lx410/450/490 Operator's Manual
8-9
8. OPERATE THE TRACTOR
5
1
1
0
0
5
5
2
2
15 IMG_4500
(A)
(a)
(b)
Accelerator_pedal
(A)
(a)
(b)
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪋㪎㪇
3P_hitch_lever_3
(A)
(b)
(a)
7. Adjust the throttle control lever to reach the target speed

Throttle Control Lever

Use the throttle control lever to increase, decrease or maintain the current engine speed.
(A)Throttle control lever
(a) Increase engine speed (b) Decrease engine speed

Accelerator Pedal

1. Use the accelerator pedal to increase or decrease
tractor speed.
2. The accelerator pedal is mainly used when
traveling on roads.
8. Raise the implement

3-Point Hitch Control Lever

Pull the 3-point hitch control lever backward.
Move any attached implements to the raised
position.
NOTE
For the implement control valve equipped tractor :
• use the implement control lever to move any attached implements to the raised position
(A) 3-point hitch control lever
(a) Lower (b) Raise
(A)Accelerator pedal
(a) Depress to increase engine speed (b) Release to decrease engine speed
8-10
Lx410/450/490 Operator's Manual
8. OPERATE THE TRACTOR
! WARNING
P5-3 top view_2
(A)
(C)
(B)
(D)
(E)
40 IMG 4473b
(F)
(G)
! WARNING

4. Stop the Tractor

Stopping Procedure

1. Make sure both brake pedals are securely connected using the brake pedal connector lock (F).
2. Push down Power Take Off (PTO) switch (B) to OFF position.
3. Slow down the engine.
4. Depress the clutch pedal (E).
5. Depress both brake pedals (G) to stop the tractor.
Avoid injury!
Make sure that the clutch pedal is depressed fully.
6. Move the following levers to the N (neutral) position:
• Primary gear lever (D)
• Range gear lever (C)
• Forward/N/reverse lever (A)
7. Push the 3-point hitch control lever forward to lower any implements to the ground.
To prevent injury or property damage:
• always lock the parking brake when the following levers are in N (neutral) position:
• primary gear lever
• range gear lever
• forward/N/reverse lever
• whether the engine is running or stopped
• the tractor wheels are free to move when the levers are in the N (neutral) position
8. Engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4.
9. Turn the starter key switch to OFF position.

Stop in an Emergency

1. Depress the clutch pedal.
2. Depress both brake pedals to stop the tractor.
3. Turn the starter key switch to OFF position.
4. Do not release the clutch pedal until the engine and all moving parts have completely stopped.
5. If possible, lock the parking brake securely.
(A)Forward/N/reverse lever (B)Power Take Off (PTO) switch (C)Range gear lever (D)Primary gear lever (E) Clutch pedal
(F) Brake pedal connector lock (G)Brake pe dals
Lx410/450/490 Operator's Manual
8-11
8. OPERATE THE TRACTOR
! WARNING
7 IMG_4473
(A)
(B)
! WARNING
! WARNING
40 IMG 4473b
(A)
(B)(C)

5. Use the Brake

Engage the Parking Brake

Before leaving the tractor unattended:
• always engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4
• always remove the key from the starter key switch
The preceding practice prevents a child and other people from attempting to drive or operate the tractor.
1. Use the brake pedal connector lock to lock the brake pedals together.

Disengage the Parking Brake

Always park the tractor on a solid and level
ground. If parking on a slope is unavoidable:
• chock all the tires safely and securely
• engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4
1. Depress both locked brake pedals.
2. Push all the way down the parking brake lock lever.
3. Release the locked brake pedals.
4. Make sure the parking brake is disengaged.
Use the Brake Pedals as Driving Brake
(on Roads)
(A)Brake pedal connector lock (B)Parking brake lock lever
2. Firmly depress both brake pedals.
3. Pull up the parking brake lock lever.
4. Release the parking brake lock lever and remove foot from the brake pedals.
5. Both brake pedals should remain to the depress position while the parking brake lock lever is engage.
To prevent accidental tipping or overturning.
• do not under any circumstances use unlocked brake pedals to stop the tractor at high speeds
Move counterclockwise the brake pedal connector lock to lock together the left and right brake pedals when:
• the brake pedals are not used for turning
• traveling on roads
Always slow down before making turns.
1. Lock the brake pedal connector lock.
2. The preceding actions lock the two brake pedals together.
3. Depress the locked brake pedals to slow down or stop the tractor.
8-12
(A)Brake pedal connector lock (B)Right turn brake pedal (C)Left turn brake pedal
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8. OPERATE THE TRACTOR
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(A)

Use the Brake Pedal for Easier Turning

IMPORTANT
To prevent damage to the 3-point hitch and implements:
• always keep the implement away from the ground during brake turning
NOTE
To perform tighter turns, unlock the brake pedal connector lock.
The preceding action can reduce the number of times the operator needs to back up the tractor.
Always keep the brake pedals locked together when:
• moving to another site
• traveling on roads
1. Unlocked the brake pedal connector lock.
2. Make sure that the two brake pedals functions independently.
3. To make tighter left turn: Depress the left brake pedal (C) while turning left.
4. To make tighter right turn: Depress the right brake pedal (B) while turning right.

Use the Clutch Pedal

Suddenly releasing the clutch pedal can
make the tractor move forward or backward unexpectedly.
1. Depress the clutch pedal fully to disengage the clutch.
(A)Clutch pedal
IMPORTANT
To prevent premature clutch wear:
• quickly disengage the clutch
• slowly engage the clutch
Do not operate the tractor when the foot is resting on the clutch pedal.
Select the gear and engine speed best suited for the current work.
(A)Brake pedal connector lock (B)Right brake pedal (C)Left brake pedal
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8-13
8. OPERATE THE TRACTOR
36 P1080310a
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! WARNING
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6. Practices for Safe Operation

Differential Lock

1A8250-65450
(A)Differential lock pedal (B)Decal
To prevent tipping of the tractor:
• do not attempt to turn with the differential lock engaged
• do not engage the differential lock while the tractor is traveling at a high speed
IMPORTANT
If differential lock does not disengage after removing foot from the differential lock pedal:
Depress brake pedals to equalize traction.
Release the differential lock pedal.
1. When rear wheels begin to slip:
• Engage the differential lock to gain greater traction.
NOTE
Engaging the differential lock:
• locks the right and left rear axles
• the right and left rear axles simultaneously rotate at the same speed
• the preceding action allows the tractor to develop maximum traction force
IMPORTANT
To prevent damage to the differential gears, always disengage the differential lock while travelling at high speed.
The differential lock is designed to be used for short durations.
Prolonged use can damage the differential gears.
Engage the Differential Lock
1. Stop the tractor.
2. Drive the tractor at a very slow speed.
3. Depress the differential lock pedal.
Disengage the Differential Lock
1. Release the differential lock pedal completely.
IMPORTANT
Always decrease the engine speed when using the differential lock.
To prevent transmission damage, always un loc k the differential lock while only one rear wheel is rotating.
If the differential lock does not disengage when the foot is removed from the differential lock pedal, try depressing lightly on the brake pedals several times.

Drive the Tractor on Roads

Exercise due caution when driving the tractor on roads. Follow the following instructions.
Turn on the hazard lights.
Before operating the tractor on a road,
become familiar with the relevant state or local regulations in effect.
Always have an implement safety lighting kit available from YOUR LOCAL YANMAR TRACTOR DEALER.
Use the turn signal lights during turning.
Always keep the Slow Moving Vehicle (SMV)
emblem on the original position.
Perform the following precautions:
• always ensure that the brake pedal connector lock is securely locked
• always ensure the Slow Moving Vehicle (SMV) emblem and hazard lights are clean and clearly visible
• while towing equipment, install Slow Moving Vehicle (SMV) emblem and hazard lights on the towed equipment
• always ensure that the Slow Moving Vehicle (SMV) emblem is visible while a rear mounted implement is mounted
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8. OPERATE THE TRACTOR
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! WARNING
P5-3 top view_2
(A)
(C)
(B)
(D)
(E)
(A)Typical example of installed Slow Moving
Vehicle (SMV) emblem
17.While driving on a road with an implement attached to the 3-point hitch:
• Set the 3-point hitch control lever to the raised position.
• Lock the 3-point hitch control lever with the position stop knob.
• During the use of hydraulic flow control/stop knob to raise the implements:
• avoid fully closing hydraulic flow control/stop
knob that may damage the hydraulic lift circuit
18.When driving the tractor on roads, travel slower than 10 mph (16 km/h).
1. Turn the hazard lights and headlights ON, unless prohibited by law.
2. Secure the implement being towed with the lock hitch pins and safety chain.
3. Slowly drive the tractor to be able to control the tractor at all times.
4. Slow down when:
• Travelling on slopes and rough roads.
• Executing sharp turns.
• Transporting a heavy rear mounted implement.
5. Adjust the tire tread width of the rear wheels to attain maximum stability. For adjusting tire tread width, for details, see "Change the Tire Tread Width" on page 12-3.
6. Disengage the 4-wheel drive to prevent excessive tire wear.
7. Do not under any circumstances coast downhill.
8. Check whether the 4-wheel drive is engaged.
9. The braking characteristics differ between the 2­wheel drive and 4-wheel drive. Always be aware of the current drive mode and drive accordingly.
10.Always slow down before turning. High speed turns can cause the tractor to tip over.
11.Always ensure the Slow Moving Vehicle (SMV) emblem is on the tractor and is clearly visible.
12.Strictly observe all the currently effec tive local traffic and safety laws and regulations.
13.Always travel at a speed such that the tractor can be controlled and is stable.
14.Do not engage the differential lock while traveling on roads. The preceding action can make the tractor uncontrollable.
15.While traveling on roads, avoid sudden turning of the steering wheel. The preceding action ma kes the tractor unstable resulting in an extremely dangerous situation.
16.While on the road, avoid under any circumstances operate an implement.

Push or Tow the Tractor

When towing the tractor:
• travel slower than 10 mph (16 km/h)
• always have another person sit on the tractor to allow independent operation of the steering and brakes when required
1. Push down Power Take Off (PTO) switch to OFF position.
2. Disengage the differential lock.
3. Unlock the parking brake.
4. Move the following levers to the N (neutral) position:
• Primary gear lever
• Range gear lever
• Forward/N/reverse lever
5. Disengage the 4-wheel drive.
(A)Brake pedals (B)Parking brake lock lever (C)Differential lock pedal (D)Power Take Off (PTO) switch (E) Range gear lever
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8-15
8. OPERATE THE TRACTOR
! WARNING
! CAUTION
! WARNING
10

Allowable Loads When Towing with the Tractor

When towing, the distance required to stop the tractor proportionally increases with the:
• tractor speed
• weight of the load being tow e d
• angle of a slope
Towing loads too heavy for the tractor:
• can result in loss of control of the tractor
• regardless of whether the load itself has brakes or not
Towing at excessively high speed can result in loss of control of the tractor.
Before towing, always ensure that the tractor has the capability to handle the total weight of all equipment and loads.
Always comply with the recommended maximum road speeds or local speed limits:
When towing equipment, travel at a speed of less than 9.3 mph (15 km/h).
Make sure the tractor has the capability to tow the equipment and loads. For details, see "Chapter 4. IMPLEMENT CAPACITIES".
Avoid injury!
If the towed equipment is not equipped with brakes:
• travel slower than 9.3 mph (15 km/h)
• tow loads weighing less than 1.5 times the tractor weight
Even if the towed equipment is equipped with brakes:
• travel slower than 18.6 mph (30 km/h)
• tow loads weighing less than 4.5 times the tractor weight
1. Hitch the load to the drawbar.
2. Lock the drawbar and pin in place.
NOTE
Always use the drawbar to tow a load.
Do not under any circumstances attach a load to
the axle housing or any other location besides the drawbar.
3. Attach a safety chain between the tractor drawbar support and the load.
Make sure the tractor is heavy and powerful enough for the load being towed.
Make sure the tractor has sufficient braking power for the load being towed.
If the load exceeds the recommended weight ratio:
• add weight to the tractor
• lighten the load
• get a heavier tractor
Exercise caution when towing loads:
• on difficult surface
• when turning
• on a slope
4. Always allow enough slack in the safety chain to enable turning.
NOTE
On a slope:
• make sure the gear is low enough to allow the operator to control the speed of the tractor without having to use the brake pedals
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8. OPERATE THE TRACTOR
! WARNING
! WARNING

Transport the Tractor on a Trailer

Exercise extreme care during loading or
unloading the tractor to or from a trailer or truck.
Turn the fuel shut-off valve to the OFF (closed) position.
1. Make sure the trailer is heavy duty enough to transport the tractor.
2. Drive the tractor forward onto the trailer.
3. Lower any implement onto the trailer deck.
4. Engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4.
5. Shut off the engine.
6. Remove the key from the starter key switch.
7. Turn the fuel shut-off valve to the OFF (closed) position.
8. Tie down the tractor to the trailer with heavy duty straps, chains or cables.
• Secure each of the tire to the trailer.
IMPORTANT
The trailer must have signs and lights as required by law.

Operate on Slopes and Rough Terrain

Be extremely cautious when driving the tractor on a slope and rough terrain. Observe the following precautions.
Before driving the tractor on a slope or a rough terrain, engage the 4-wheel drive for the following purposes:
• to increase traction
• to greatly assists in climbing steep slopes
• to improve braking power on sloped, frozen, wet or graveled surfaces
• always be aware that the danger of tipping over is still present
Add weight to the tractor as necessary.
Drive at a lower speed to prevent skidding
and loss of steering control.
Keep away from slopes steepe r th an 15 degrees.
Avoid parking the tractor perpendicular to the slope.
Avoid turning or changing travel directions on a slope.
Before approaching a slope, select an appropriate speed setting.
Make sure to travel at a lower speed when on a slope.
Avoid shifting the range gear lever while traveling on a slope. The preceding action can make the tractor uncontrollable and suddenly roll down the hill.
Do not move the following in N (neutral) position when on the slope:
• primary gear lever
• range gear lever
• forward/N/reverse lever
Do not under any circumstances step on the clutch pedal when on a slope.
• the preceding action can make the tractor uncontrollable and suddenly roll down the hill
Sudden operating the tractor on an uphill slope can cause the front wheels to lift off the ground and result in an extremely dangerous situation.
To prevent the preceding danger:
• run the engine at a lower speed
• slowly start the tractor
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8-17
8. OPERATE THE TRACTOR
1
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4
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IMG_4479 2
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! WARNING
Avoid parking the tractor perpendicular to a slope
• if parking on a slope is unavoidable, chock all the tires safely and securely and engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4
On a slope, the tractor is unstable and more prone to severe injury or even death. Always be alert.
Avoid traveling backward, up and down on a slope to prevent tipping over.
Keep away from ditch or deep mud to avoid the risk of the tractor tipping over.
Always drive slowly on any slope. Avoid under any circumstances sudden change of speeds or directions.
For increased stability of the tractor on s lope:
• always use tires with the widest possible tire tread width
• follow the instructions for proper weighting
• for details, see "Chapter 12. TIRES, WHEELS AND WEIGHTS" on page 12-1
1. Before approaching a slope, select a lower gear setting.
(A)Range gear lever
(a) Shift to a lower speed
2. Always travel slowly on a slope.
3. Drive the tractor according to the type of a slope, as indicated below.

Uphill and Downhill Slopes

Start slowly.
Make sure the range gear is in a slow gear.
Run the engine at a lower speed.

Steep Downhill Slope

Move the range gear lever to the lower speed
position before going a downhill slope.
• the preceding action sets the level of engine brake
Select the range gear lever position suitable for the steepness of a slope.
Avoid injury!
When backing up a slope, keep the tractor parallel with the inclination of the slope.
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8. OPERATE THE TRACTOR
! WARNING

About the Power Steering

Avoid injury!
The tractor equipped with power steering.
• the steering wheel can turn with minimum force while the engine is running
Avoid abrupt turning of the steering wheel, especially while traveling on paved roads.
• the preceding action can cause an accident
1. The power steering only function when th e engine is running.
2. When the engine is running at slow speed, the operator may need to exert a slightly greater force to turn the steering wheel.
3. The preceding state is normal.
IMPORTANT
Fully turning the steering wheel causes the relief valve to trip. An audible signal is emitted.
• the preceding state can be ignored only for a short duration
Do not under any circumstances keep the steering wheel fully turned for an extended period of time.
As much as possible, avoid turning the steering wheel while the tractor is not moving.
Avoid turning the steering wheel of the tractor while the engine is shut off, unless while towing the tractor.
• the preceding action can damage the steering valve, tires and rims
Lx410/450/490 Operator's Manual
8-19

9. POWER TAKE OFF (PTO) SYSTEM

! WARNING
! WARNING
9.
Avoid injury!
Before connecting, disconnecting, adjusting, cleaning or servicing any Power Take Off (PTO) driven implement:
• always ensure all moving components have
Always ensure Power Take Off (PTO) shaft shield is installed while the Power Take Off (PTO) is not in use.
Before attempting to replace the Power Take Off (PTO) shaft cap:
• always wait until the shaft has completely
Before installing or operating any Power Tak e Off (PTO) driven implements:
• always follow Power Take Off (PTO) driven
Always engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4 and chock all the tires safely and securely.
Avoid approaching or touching any rotating component.
POWER TAKE OFF (PTO) SYSTEM
completely stopped rotating
stopped moving
implement Operator’s Manual, safety decals and instructions

1. Operate the Power Take Off (PTO) System

Before connecting, disconnecting, adjusting
or cleaning any Power Take Off (PTO) driven implement:
• push down Power Take Off (PTO) switch to OFF position
• shut down the engine
• make sure all rotating component have stopped
Avoid approaching rotating drivelines.
Entanglement with a rotating driveline can
lead to serious injury or even death.
Keep away from rotating driveline.
Keep clothing away from rotating driveline.
Make sure all shields and guards are in
position and are correctly installed.
Do not run the engine at 2750 Revolutions Per Minute (rpm) for Lx410/450 and 2650 Revolutions Per Minute (rpm) for Lx490 or more while Power Take Off (PTO) switch is ON position.
1. The tractor comes equipped with a hydraulic/ electric Power Take Off (PTO) clutch.
2. ON/OFF the Power Take Off (PTO) switch can be done any time while the engine is running.
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9. POWER TAKE OFF (PTO) SYSTEM
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Determine the Appropriate Power Take Off (PTO) Speed

1. At the standard Power Take Off (PTO) speed
(540 Revolutions Per Minute (rpm)), the engine should be run at 2592 Revolutions Per Minute (rpm).
2. The RATED mark on the tachometer indicates the
appropriate engine speed.
3. Be always aware of the current tractor speed.
Make sure that the tractor is controllable.
4. When Power Take Off (PTO) switch is in the ON
position:
• Always drive below the indicated RATED Revolutions Per Minute (rpm).
IMPORTANT
When Power Take Off (PTO) switch is in the ON position:
• always drive within or below the indicated RATED speed

Engage Power Take Off (PTO) (with the operator on the operator seat)

NOTE
Do not stop the engine while Power Take Off (PTO) switch is in the ON position.
When the operator leaves the operator seat while the engine is running (with Power Take Off (PTO) engaged):
• the safety interlock system shuts down the engine
• the system also stops all operations on the tractor
1. To engage Power Take Off (PTO):
• Idle the engine speed.
• Pull up Power Take Off (PTO) switch to ON position (a).
(A)RATED mark
Lx410/450/490 Operator's Manual
(A)Power Take Off (PTO) switch
(a) ON (b) OFF
2. Increase the engine speed required for the implement.
9-2
9. POWER TAKE OFF (PTO) SYSTEM
! WARNING
450140205_P14-4_tofc_d
(A)
(B)

Disengage Power Take Off (PTO) (with the operator on the operator seat)

1. Idle the engine speed.
2. Push down Power Take Off (PTO) switch to OFF
position.

2. Use Power Take Off (PTO) Safely

Stay clear of rotating drivelines.
Before approaching the driveline:
• push down Power Take Off (PTO) switch to OFF position
• shut down the engine
• make sure all rotating components have stopped
Entanglement with a rotating driveline can lead to serious injury or even death.
Keep away from rotating driveline.
Keep clothing away from rotating driveline.
Make sure all shields and guards are in
position and are correctly instal le d an d used .

Use Power Take Off (PTO) Shield

1. Always keep Power Take Off (PTO) shield in place.
2. When connecting or disconnecting the implement drive shaft to Power Take Off (PTO) shaft:
• Raise Power Take Off (PTO) shield.
3. After disconnecting the implement drive shaft to Power Take Off (PTO) shaft:
• Lower Power Take Off (PTO) shield.
(A)Power Take Off (PTO) shield (B)Power Take Off (PTO) shaft
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9. POWER TAKE OFF (PTO) SYSTEM
! WARNING
4 IMG_4473b
(A)
P5-3 top view_2
(A)
(B)

3. Install an Implement to Power Take Off (PTO) Driveline

Avoid injury!
Before installation of an implement to Power
Take off (PTO) driveline,
• make sure that the tractor is stopped
• make sure that Power Take Off (PTO) switch is in the OFF position
IMPORTANT
Observe the driveline manufacturer installation instructions for:
• driveline mounting angle
• length of the overlaps on the driveline shafts
An incorrectly installed implement can promote wear of the driveline and/or damage the tractor.
Use Power Take Off (PTO) with the operator out of the operator seat.
1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the Tractor" on page 1-7.
2. Shut off the engine.
3. Chock all the tires safely and securely.
4. Move the primary gear lever to the N (neutral) position and Power Take Off (PTO) switch to OFF position.
5. Sit on the operator seat.
6. Start the engine.
7. Pull up Power Take Off (PTO) switch to ON position.
(A)Clutch pedal (B)Power Take Off (PTO) switch
(A)Parking brake lock lever
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9-4

10. 3-POINT HITCH AND DRAWBAR

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10.3-POINT HITCH AND DRAWBAR

1. 3-Point Hitch

When there is a 3-point hitch-mounted implement:
• always install an appropriate weight to the front of the tractor
During transportation:
• place the 3-point hitch control lever in the raised position
• lock the 3-point hitch control lever with the position stop knob for the 3-point hitch control lever
Do not fully close the hydraulic flow control/ stop knob in order to keep any implements in the raised position while the tractor is traveling.
• completely closing the hydraulic flow control/stop knob can damage the hydraulic lift circuit
Only use implements that are designed for use with the 3-point hitch.
Always use approved implements with the 3­point hitch.
Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
(A)Top link (B)Top link hook (C)Left arm, Right arm (D)Lift Link right (E) Stabilizer (F) Lower links (G)Drawbar (H)Lift Link left (I) Power Take Off (PTO) shaft (J) Power Take Off (PTO) shield

Use the 3-Point Hitch Control Lever

NOTE
The 3-point hitch delivered with the tractor is a Category 1.
1. Use the 3-point hitch control lever to raise and lower the implement attached to the 3-point hitch.
NOTE
The 3-point hitch control lever is labeled 1 to 6.
The numbers:
• for reference purposes only
• does not indicate any exact height position for the implement that is attached to the 3-point hitch
The lower the number, the closer the lower links is to the ground.
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10. 3-POINT HITCH AND DRAWBAR
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(a)
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! WARNING
2. Adjust the position stop knob to set the desired lowest position of the implement from the ground.
(A)3-point hitch control lever (B)Position stop knob
(a) Moving the 3-point hitch control lever forward
lowers the implement
(b) Moving the 3-point hitch control lever backward
raises the implement.

Use the Position Stop Knob

NOTE
Use the position stop knob to:
Limit the downward movement of the lower links.
Set a minimum distance between the attached
implements and the ground.
1. Operate the attached implement.
2. Use the 3-point hitch control lever to establish the desired working height (distance from the ground) of the implement.
3. Loosen the position stop knob.
4. Move the position stop knob rearwards until position stop knob stops against the 3-point hitch control lever.
5. Tighten the position stop knob to fix on tha t particular position.
• Every time the 3-point hitch control lever stops against the position stop knob, the implement is lowered to the established working height.

Hydraulic Flow Control/Stop Knob

Lowering the 3-point hitch too fast can lead to
accident or tractor failure.
Adjust the hydraulic flow control/stop knob:
• the time for lowering the implement from the highest position to the lowest position, is 2 seconds or longer
Do not attempt to operate an implement on a road.
While the tractor is traveling:
• keep the 3-point hitch control lever in the raised position
• lock the 3-point hitch control lever with the position stop knob
• do not fully close the hydraulic flow control/ stop knob
• closing the hydraulic flow control/stop knob can cause damage to the hydraulic lift circuit
During maintenance:
• do not use the hydraulic flow control/stop knob as a means to keep the implements raised
• loss of hydraulic pressure may cause the implement to suddenly drop
• set the implement on solid blocks, or remove the implement before starting any maintenance
The hydraulic flow control/stop knob determines the speed at which the lower link is lowered.
IMPORTANT: Avoid damage!
Avoid attaching a heavy load to the 3-point hitch when traveling on rough terrain.
• the hydraulic system may be damaged
Do not operate the 3-point hitch control lever when the hydraulic flow control/stop knob is closed.
• the preceding action can cause the transmission hydraulic oil to overheat
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10-2
10. 3-POINT HITCH AND DRAWBAR
35 P1080310
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38 P1080928
(A)
(B)
(A)Hydraulic flow control/stop knob
(a) Knob turned counterclockwise:
• increases the rate of drop speed
• unlocks the hydraulic lift
(b) Knob turned clockwise:
• decreases the rate of drop speed Knob turned clockwise until the knob stops turning:
• locks the hydraulic lift
3. Chock all the tires safely and securely.
NOTE
Always remove the drawbar to prevent interference with the implements to be mounted.
4. Connect the lower links to the implement.
5. As necessary, unhook the top link from the top link hook, and connect to the implement.
6. Use lynch pin to secure the implement.

Use the Lower Links (and Top Link as Needed)

Avoid injury!
Always be extremely careful when backing up the tractor.
Always clear the surrounding area of the tractor from bystander/s and obstacle/s before starting to back up.
While backing up, always watch for bystander/s and obstacle/s along the way.
Engage the parking brake securely, for details, see "6. Lock and Set the Parking Brake" on page 7-4 before getting in be tween the tractor and the implements to be installed or removed.
Check for any interference between the implement and the tractor and/or driveline separation:
• whenever a Power Take Off (PTO) driven implement is installed to the 3-point hitch
(A)Top link (B)Lower Link
NOTE
Whenever the top link is not used, always place the top link in the top link hook.
1. Slowly back up the tractor into a position where the lower links are aligned with the implement lift brackets.
2. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the Tractor" on page 1-7.
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10. 3-POINT HITCH AND DRAWBAR
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Level the Implement Front to Rear

1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the Tractor" on page 1-7.
2. Chock all the tires safely and securely.
NOTE
Always place the top link in the top link hook when the 3- point hitch is not in use.
3. Relieve the tension on the top link by lowering the implement to the ground.
4. Loosen the locknut. Rotate the top link body to lengthen or shorten the top link, as required.

Level the Implement Side to Side

1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the Tractor" on page 1-7.
2. Chock all the tires safely and securely.
3. Lower the implement to the ground.
4. Lift the adjustment box located on the lift link right.
5. Rotate the adjustment box clockwise or counterclockwise to raise or lower to the desired height.
6. Lower the adjustment box to the slot to secure the desired height.
(A)Top link (B)Locknut (C)Top link hook (D)Top link body
IMPORTANT: Avoid damage!
Avoid over turning the top link body all the way to the end, the preceding action can damage the threads.
5. Raise the implement. Check if the desired levelness is attained. Re­adjust the top link as necessary.
6. Once the desired levelness is attained, tighten the locknut.
(A)Lift link right (B)Adjustment box
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10. 3-POINT HITCH AND DRAWBAR
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! WARNING
! CAUTION

Adjust the Stabilizer

NOTE
Check the procedure for adjusting the stabilizer in the Operator's Manual for the implement.
Once the check chain has been properly adjusted, side sway of the implement can be controlled by the position of the links.
1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the Tractor" on page 1-7.
2. Chock all the tires safely and securely.
3. Lower the implement to the ground.
4. Remove the lynch pin and clevis pin.
5. Adjust the length of the implement sliding stabilizer.
6. Install the clevis pin and lynch pin.

2. Drawbar

Avoid injury!
Always use the drawbar to attach a trai le r or towed implement.
Attempting to attach a trailer or towed implement at the top link or rear axle can cause the tractor to tip over.
Only use the drawbar that is provided wit h the tractor.
• avoid installing or using a floating type or any other type of the drawbar
Always hitch loads being towed to the drawbar.
• the preceding action prevents the tractor from tipping over rearward
Avoid attaching a longer drawbar.
• the preceding action can damage the attached section
• the same action can cause the implement to become disconnected
(A)Lynch pin (B)Clevis pin (C)Implement sliding stabilizer
NOTE
The tractor comes equipped with a stationary drawbar.
Always remove the drawbar before attaching any 3-point hitch implement.

Maximum Drawbar Loads

IMPORTANT
Make sure that the static vertical load on the drawbar does not exceed the maximum recommendations.
Always travel slowly when towing heavy loads.
Certain heavy equipment, such as a loaded
single axle trailer, can place excessive strain on the drawbar.
Such strain is also greatly increased by speed and rough ground.
1. Avoid attaching very heavy equipment (e.g., a loaded single axle trailer) that exerts excessive strain on the drawbar.
10-5
Lx410/450/490 Operator's Manual
10. 3-POINT HITCH AND DRAWBAR
P1110518
(A) (B) (C)
(a)
(b)
(c)
! WARNING
2. Avoid exceeding the maximum vertical load of 1102 lb. (500 kg) on the drawbar.
3. The strain is greatly increased by high speed and rough ground.

Deploy/Stow the Drawbar

IMPORTANT
Make sure that the drawbar is removed before using the Power Take Off (PTO) driven/drawn implement.
1. Remove the hairpin clip.
2. Remove the pin.
3. Set the drawbar length by lining up the positioning hole (a) in the drawbar with that in the drawbar bracket.

Remove Drawbar

1. Remove the hairpin clip.
2. Remove the pin.
3. Remove the drawbar.
4. Install the pin to the drawbar.
5. Install the hairpin clip.
6. Keep the drawbar to the storage area.

3. Use the Safety Chain

Avoid injury!
Always hitch loads being towed to the drawbar.
The preceding action prevents the tractor from tipping over to the rear.
Never use the safety chain alone to tow a load.
(A)Hairpin clip (B)Pin
(a) Hole for attaching the drawbar in the operating
state (deployed position) (b) Hole for attaching an implement (c) Hole for most pulled away position
(C)Drawbar
NOTE
To secure the drawbar in the stowed position while Power Take Off (PTO) driven implement is not used:
Remove the hairpin clip.
Slide the drawbar in, until the positioning hole (b)
is align with the hole in the drawbar bracket.
Install the hairpin clip.
IMPORTANT
Always secure the towed implement to the drawbar.
• the safety chain is only intended to control the towed implement if the towed implement is accidentally disconnected from the drawbar
Always use a chain whose strength is rated greater than the gross weight of the towed implement.
Always replace or repair the safety chain if any of the chain link/s or connector/s is/are broken, elongated or damaged.
1. Use the appropriate adapter parts to connect the safety chain to the tractor drawbar support and to the towed implement.
• Allow enough slack in the safety chain to enable turning.
2. As necessary, mount additional intermediate support for the safety chain on the drawbar to eliminate excessive slack.
• Remove and store the safety chain when not in use.
4. Set the drawbar length by lining up the hole (a) in the drawbar with the corresponding hole in the drawbar bracket.
5. Install the pin.
6. Install the hairpin clip.
Lx410/450/490 Operator's Manual
10-6
10. 3-POINT HITCH AND DRAWBAR
(A)
(B)
(A)Intermediate support (B)Towed implement attachment point
IMPORTANT
For safety purposes, ensure that any implements or trailer towed by the tractor drawbar is equipped with a safety chain.
• the chain holds the implement when the implement is accidentally disconnected from the tractor
Make sure that the tensile strength of the chain is greater than the weight of the implement, or that of the fully loaded trailer.
A chain shackle whose strength is the same or is greater than that of the safety chain can be added to the tractor drawbar bracket where the safety chain (of the implement or trailer) can be connected.
For additional safety, install a chain shackle to the drawbar bracket.
10-7
Lx410/450/490 Operator's Manual

11. HYDRAULIC SYSTEM

! WARNING
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪋㪎㪇
3P_hitch_lever_4
(A)
(a)
(b)
(B)
11.HYDRAULIC SYSTEM

Use the 3-Point Hitch Control Lever

Always completely release
the internal hydraulic pressure before disconnecting a hydraulic line.
Always ensure that all connections are securely tightened.
Always ensure that all hydraulic lines, pipes and hoses are free from wear and/or damage.

1. 3-point Hitch Control System

IMPORTANT
Avoid operating the 3-point hitch control lever before the engine has been sufficiently warmed up.
Operating the 3-point hitch control lever while the engine has not yet been sufficiently warmed up:
• can damage the hydraulic system
• can result in the complete failure of the hydraulic system
If abnormal noise occurs after the 3-point hitc h has been raised, incorrect adjustment or failure of the hydraulic system are possible causes.
• immediately stop the operation
• contact YOUR LOCAL YANMAR TRACTOR DEALER to check and repair the tractor
NOTE
The 3-point hitch delivered with the tractor is a Category 1.
1. Use the 3-point hitch control lever to raise and lower the implement that is attached to the 3-point hitch.
NOTE
The 3-point hitch control lever is labeled 1 to 6.
The numbers:
• for reference purposes only
• do not indicate any exact height position for the implement that is attached to the 3-point hitch
The lower the number, the closer the lower links is to the ground.
2. Adjust the position stop knob to set the implement to the lowest possible height.
(A)3-point hitch control lever (B)Position stop knob
(a) Moving the 3-point hitch control lever forward
lowers the implement.
(b) Moving the 3-point hitch control lever backward
raises the implement.
Lx410/450/490 Operator's Manual
11-1
11. HYDRAULIC SYSTEM
! WARNING

Use the Position Stop Knob

NOTE
Use the position stop knob to:
Limit the downward movement of the lower links.
Set a minimum distance between the attached
implements and the ground.
1. Operate the attached implement.
2. Use the 3-point hitch control lever to establish the desired working height (distance from the ground) of the implement.
3. Loosen the position stop knob.
4. Move the position stop knob rearwards until position stop knob stops against the 3-point hitch control lever.
5. Tighten the position stop knob to fix on tha t particular position.
• Every time the 3-point hitch control lever stops against the position stop knob, the implement is lowered to the established working height.

Hydraulic Flow Control/Stop Knob

Lowering the 3-point hitch too fast can lead to
accident or tractor failure.
Adjust the hydraulic flow control/stop knob:
• the time for lowering the implement from the highest position to the lowest position, is 2 seconds or longer
Do not attempt to operate an implement on a road.
While the tractor is traveling:
• keep the 3-point hitch control lever in the raised position
• lock the 3-point hitch control lever with the position stop knob
• do not fully close the hydraulic flow control/ stop knob
• closing the hydraulic flow control/stop knob can cause damage to the hydraulic lift circuit
During maintenance:
• do not use the hydraulic flow control/stop knob as a means to keep the implements raised
• loss of hydraulic pressure may cause the implement to suddenly drop
• set the implement on solid blocks, or remove the implement before starting any maintenance
The hydraulic flow control/stop knob determines the speed at which the lower link is lowered.
IMPORTANT: Avoid damage!
Avoid attaching a heavy load to the 3-point hitch when traveling on rough terrain.
• the hydraulic system may be damaged
Do not operate the 3-point hitch control lever when the hydraulic flow control/stop knob is closed.
• the preceding action can cause the transmission hydraulic oil to overheat
11-2
Lx410/450/490 Operator's Manual
11. HYDRAULIC SYSTEM
35 P1080310
(A)
(a)
(b)
450_009_ICLever
(A)
450110202
(A)
(1) (2)
(4) (3)
(A)Hydraulic flow control/stop knob
(a) Knob turned counterclockwise:
• increases the rate of drop speed
• unlocks the hydraulic lift
(b) Knob turned clockwise:
• decreases the rate of drop speed Knob turned clockwise until the knob stops turning:
• locks the hydraulic lift

2. Operate the Implement Control Valve

Implement Control Lever

1. Use the implement control lever to operate the optional mounted implements.
4. After the couplers and hydraulic lines have been connected, the attached implement moves in a direction opposite to the expected direction:
• Interchange the hydraulic line connections between couplers 1 & 2.
• Interchange the hydraulic line connections between couplers 3 & 4.
(A)Hydraulic quick co uplers
(1) Blue (2) Green (3) Red (4) Yellow
IMPORTANT
Avoid interchanging the hydraulic lines between coupler 1 and coupler 3. Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
Avoid interchanging hydraulic lines between coupler 2 and coupler 4. Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
When the hydraulic quick couplers are not used, always leave the color coded rubber plugs inserted to the hydraulic quick couplers.
• the preceding action prevents damage and contamination of the female hydraulic quick couplers
(A)Implement control lever
2. There are 4 hydraulic quick couplers (color coded by the rubber plugs).
• The hydraulic quick couplers are located under the right foot deck.
• The hydraulic quick couplers are used to connect the tractor's hydraulics to the implement's hydraulic cylinders.
3. Use the hydraulic quick couplers in pairs: 1 & 2 and 3 & 4.
Lx410/450/490 Operator's Manual
NOTE
The implement control valve has a float position.
When the implement control valve is in the float
position, the implement that is lowered to the operating positions follow the ground contour.
• to use the float position, push the implement control lever forward beyond the valve detent position
11-3
11. HYDRAULIC SYSTEM
1A8250-65410
##
#
12
3
4
1a8250-65410
450_009_ICLLock
(B)
(a)
(b)
(A)
! WARNING
NOTE
Read the Operator's Manual and installed label on the tractor side regarding the different implement control lever positions.
When the lever is at any corner position, the boom and bucket cylinders are simultaneously operated.
Unnumbered position (Raise & Rollback) is not recommended for scooping purpose b ecause an insufficient lift force is obtained.

Implement Control Lever Lock

1. Use the Implement control lever lock to lock the implement control lever to the N (neutral) position.
2. To lock the implement control lever:
• Push slightly the implement control lever forward.
• Push the Implement control lever lock forward.
3. To unlock the implement control lever:
• Pull the Implement control lever lock backward.
IMPORTANT
Avoid operating the implement control lever when the implement control lever is locked.
To confirm that the implement control lever has been locked with the implement control lever lock:
• move the implement control lever with a light force to ensure that the lever is securely locked.

Connect the Implement Hydraulic Hoses

Avoid injury!
Avoid connecting the hoses to the hydraulic quick couplers before the hydraulic system pressure has been fully relieved.
When checking for leaks, run a piece of cardboard or wood block along the hydraulic lines and connections.
Avoid getting in contact with high pressure transmission hydraulic oil.
• pressurized transmission hydraulic oil can:
• penetrate the skin and other body parts
• cause serious injury
Immediately see a doctor if transmission hydraulic oil penetrates the skin or other body parts.
• transmission hydraulic oil must be surgically removed
• gangrene may develop
(A)Implement control lever (B)Implement control lever lock
(a) LOCK position (b) UNLOCK position
1. Park the tractor safely and securely.
• For details, see "7. Safe Practices for Parking the Tractor" on page 1-7.
2. Chock all the tires safely and securely.
3. Fully relieve the hydraulic pressure:
• By moving the implement control lever forward, backward, right and left several times.
4. For the procedure on connecting the hydraulic hoses to the hydraulic quick couplers, read the implement Operator's Manual.
11-4
Lx410/450/490 Operator's Manual
11. HYDRAULIC SYSTEM
450110202
(A)
(1) (2)
(4) (3)
(A)Hydraulic quick couplers
(1) Blue (2) Green (3) Red (4) Yellow
NOTE
Insert the rubber plug into an unused coupler.
Lx410/450/490 Operator's Manual
11-5

12. TIRES, WHEELS AND WEIGHTS

! WARNING
! WARNING
12.
Avoid mounting a tire on a rim by an unauthorized person.
Always have an authorized professional with the proper equipment mount the tire on the rim.
Always inflate tires to the correct tire air pressure.
Avoid exceeding the recommended tire air pressure specified in the Operator's Manual.
Always keep the tractor securely supported while:
• changing the wheels
• adjusting the tire tread width
Always keep the wheel bolts tightened to the specified torque.
Avoid operating the tractor with loose wheels, rims, weights and axles.
TIRES, WHEELS AND WEIGHTS

1. Tires

Avoid injury!
Avoid mounting a tire on a rim by an unauthorized person.
Always have an authorized professional with the proper equipment mount the tire on the rim.
Always inflate tires to the correct tire air pressure.
Avoid exceeding the recommended tire air pressure specified in the Operator's Manual.
IMPORTANT
Only use the tires approved by Yanmar tractor dealers.
Always install the same tires types in the front wheels and the rear wheels (e.g., R3 front and R3 rear, or R4 front and R4 rear).
Tire Size
R1: 8-16 6PR
Front
Rear
3 tire sizes are provided for the front wheels.
Another 3 tire sizes are provided for the rear
The recommended tire air pressures for these tir es
The tire air pressure gradually decreases as the
Check the tire air pressure before starting the
When the tire air pressure is low, inflate the tires to
R3: 27 × 10.50-15 4PR 30 (0.21) R4: 10-10.5 6PR 45 (0.31) R1: 14.9-24 6PR R3: 44 × 18.00-20 4PR 20 (0.14) R4: 17.5L-24 6PR 20 (0.14)
wheels.
are as specified in the table above.
tires are used and as time elapses.
day's operation.
the recommended tire air pressures.
Tire Air
Pressure
psi (MPa)
28 (0.19)
20 (0.14)
12-1
Lx410/450/490 Operator's Manual
12. TIRES, WHEELS AND WEIGHTS
! WARNING
! WARNING
450120201 F-wheel
(A)
(A)
If the tire air pressures rapidly and significantly decrease though the tires are correctly inflated every day, immediately contact YOUR LOCAL YANMAR TRACTOR DEALER to inspect the problem tire/s and to replace the tire/s if necessary.
NOTE
While a loader is mounted to the tractor, always set the front tire air pressure to the maximum recommended tire air pressure.
The above also applies while the tractor is fitted with a full load of front weights.
Do not use dual tires.

2. Adjust the Wheels

Avoid injury!
Before working under the tractor or an implement, always lower to the ground all attached implement.
During work under the tractor or an implement, always use proper and rigid lifting devices with the capacity of more than 3 t ons.
Always support the implement using fixed stands or any suitable blocking devices with a capacity of more than 3 tons.
While servicing or adjusting the tractor and implement, avoid using the hydraulic system to keep the tractor and implement in the position.
Avoid operating the tractor with loose wheels, rims, weights and axles.
Avoid changing the specific adjustment settings for each tire size.

Check the Wheel Bolt Tightening Torque

Avoid injury!
Before operating the tractor, check that there are no loose rims, hubs, wheel bolts and/or axles.
The preceding action promotes tractor stability.
• reduces the possibility of the tractor tippin g over
Tighten all the wheel bolts after every 4 hours of operation.
Repeat tightening until the proper torque values of the wheel bolts are constantly maintained.
Perform the preceding procedure when any wheel bolt/s is/are loosen.
Make sure to maintain the tightness of the wheel bolts according to the recommended maintenance intervals.
Tighten the wheel bolts as follows:
Front Wheel
Tire Size
R1 101.17 to 108.34 (137.2 to 147) R3 101.17 to 108.34 (137.2 to 147) R4 130.09 to 144.54 (176.4 to 196)
Tighten the front wheel bolts in a crisscross sequence.
Tightening Torque
ft•lbs (N•m)
Lx410/450/490 Operator's Manual
(A)Front wheel bolts
12-2
12. TIRES, WHEELS AND WEIGHTS
450120202 R-wheel
(A)
(A)
! WARNING
! WARNING
450120203
Rear Wheel
Tire Size
R1 101.17 to 108.34 (137.2 to 147) R3 101.17 to 108.34 (137.2 to 147) R4 130.09 to 144.54 (176.4 to 196)
Tighten the rear wheel bolts in a crisscross sequence.
(A)Rear wheel bolts
Tightening Torque
ft•lbs (N•m)

Change the Tire Tread Width

Avoid injury!
When working on a slope, always use the tractor with the rear wheels mounted in the wide tire tread width position. The preceding practice increases stability.
Exercise caution when removing wheels.
Wheels are heavy and difficult to handle.
Use a safe lifting device with a capacity of
more than 3 tons.
Securely support the tractor with rigid stands or jack stands with a capacity of more than 3 tons.
Make sure to chock all the tires safely and securely which are still in contact with the ground.
The preceding procedure prevents the tractor from rolling.

Select the Front Tire Rolling Direction

Avoid injury!
Wheels are heavy or difficult to handle during removal.
Be very careful when attempting to remove wheels from the tractor.
Use a safe lifting device with a capacity of more than 3 tons.
Securely support the tractor with rigid stands or jack stands with a capacity of more than 3 tons.
Make sure to chock all the tires safely and securely which are still in contact with the ground.
The preceding procedure prevents the tractor from rolling.
Directional type tires, such as bar tires, have directional arrows on the sidewall.
Install the tires with the directional arrows pointing in the rolling direction.
If the tractor is mostly used for loader operations, periodically reverse the tread pattern direction.
• the preceding procedure increases the tire life and improves traction when reversing from dirt piles
IMPORTANT
For maximum forward traction, always ensure that the arrows on the tire sidewall point in the rolling direction.
NOTE
The tire tread width is measured from centerline to centerline of each tire.
Interchange the wheels located on both sides of the tractor.
12-3
Lx410/450/490 Operator's Manual
12. TIRES, WHEELS AND WEIGHTS
3015775_a
3015775b_a
3015777_a
3015778_a
3015779_a
3015780_a
3015781_a
3015782_a
3015784_a
3015783_a
Tire Tread
Front
Front R1 (8-16)
Front R3
(27 × 10.5-15)
Wheel pattern
Tread in. (mm) 49.8 (1265) 55.1 (1399) 51.0 (1297) 51.7 (1314) Ply 6646
Rear
Rear R1 (14.9-24)
Front R4
(10-16.5)
Wheel pattern
Tread in. (mm) 51.9 (1319) 55.7 (1416) 64.0 (1626) 60.0 (1525) Ply 6666
Rear
Rear R3
(44 × 18.00-20)
Rear R4
(17.5L-24)
Wheel pattern
Tread in. (mm) 55.8 (1417) 51.9 (1319) Ply 4 6
Lx410/450/490 Operator's Manual
12-4
12. TIRES, WHEELS AND WEIGHTS
! WARNING
! WARNING

3. Remove/Install the Wheels

Avoid injury!
Wheels are heavy or difficult to handle during removal.
Be very careful when attempting to remove wheels from the tractor.
Use a safe lifting device with a capacity of more than 3 tons.
Securely support the tractor with rigid stands or jack stands with a capacity of more than 3 tons.
Make sure to chock all the tires safely and securely which are still in contact with the ground.
The preceding procedure prevents the tractor from rolling.

4. Weights (Option)

IMPORTANT
Find and read the maximum load information embossed into the sidewall of each tire.
Make sure that tires are not subjected to loads that exceed the information.
If the maximum weight shown on the chart is not enough to ensure safety, reduce the load or use higher tire ply rating.
Remove the weights from the tractor when no longer needed.
Always avoid adding weight when performing continuous and full power operations at a speed of above 4.4 mph (7 km/h).
The preceding practice:
• prevents excessive soil compaction
• prevents resistance to wheel rotation
• extends the drive train life
Avoid injury!
If there is a danger that the tractor becomes unstable when implement is used, add weight on the tractor.
The preceding precaution is particularly necessary when an implement is raised.
Always drive slowly over rough terrain, regardless of how much weight is used.
Implement and tractor components are heavy.
Always use proper lifting devices with a capacity of more than 3 tons.
Always have assistance from another person when installing or removing any implement.
Exercise the preceding caution while installing or removing components of the tractor.
12-5
Lx410/450/490 Operator's Manual
12. TIRES, WHEELS AND WEIGHTS
450120204
(A)
(B)
! WARNING

Select the Appropriate Amount of Front Weight

Maximum Load Per Front Tire
Tire Size Ply Rating
R1: 8-16 6 1360 (617) R3: 27 × 10.50-15 4 1320 (599) R4: 10-16.5 6 3500 (1580)
Heavy pulling can cause the front wheels to lift off the ground.
Heavy rear mounted implement can cause the front wheels to lift off the ground.
As required, add weight to the front end of the tractor to make the tractor stable.
Add just enough weight to prevent the tractor from tipping over.
Make sure that steering control is still maintained.
Make sure to remove all weights when no longer
required.
Use the chart above to determine the maximum load capacity of each front tire, at maximum allowed tire air pressure.
Capacity
lb. (kg)

Front Weights (option)

As necessary; (optional) front weights can be installed on the front weight mounting bracket.

Select the Appropriate Amount of Rear Weight

Operation of front mounted implement such as a loader can cause the rear wheels to lift off the ground.
As required, add weight to the rear end of the tractor to make the tractor stable.
Use of the optional rear ballast is best suited for the loader operations.
Make sure to remove all weights when no longer required.
Use the chart below to determine the maximum load capacity of each rear tire at maximum inflation.
Rear Weight Capacity
Gross Ballast Box
Tire Size Condition
With Liquid
R1
R3
R4
Weight
Without Liquid
Weight
With Liquid
Weight
Without Liquid
Weight
With Liquid
Weight
Without Liquid
Weight
Weight lb. (kg)
882 (400)
1323 (600)
882 (400)
1323 (600)
882 (400)
1323 (600)
(A)Mounting bracket (option) (B)Front weights (option)
Lx410/450/490 Operator's Manual
Avoid injury!
Always use a lower load on the tires than the indicated maximum capacity.
Always keep the amount of rear weight within the limits indicated below.
Maximum Load Per Rear Tire
Tire Size Ply Rating
R1: 14.9 × 24 6 3300 (1497)
R3: 44 × 18.00-20 4 3420 (1551)
R4:17.5L-24 6 4400 (1996)
For information regarding the rear weight, for d etails, see "Use Liquid Weight for the Tires" on page 12-7.
12-6
Capacity
lb. (kg)
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