Yanmar Lx490, Lx450, Lx410 Operator's Manual
OPERATOR'S MANUAL
COMPACT TRACTOR
Lx Series
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
1
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
2
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
3
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
Lx410/450/490 Operator's Manual
4
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
6
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
7
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.
1-3
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.
1-5
Lx410/450/490 Operator's Manual
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.
1-7
Lx410/450/490 Operator's Manual
1. SAFETY PRECAUTIONS
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
1-8
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.
1-9
Lx410/450/490 Operator's Manual
1. SAFETY PRECAUTIONS
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
1-10
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.
1-11
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
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䍃㪥㪜㪭㪜㪩㩷㫆㫇㪼㫉㪸㫋㪼㩷㫎㫀㫋㪿㫆㫌㫋
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㩷㪩㪦㪧㪪㪅
䍃㪝㪸㫀㫃㫌㫉㪼㩷㫋㫆㩷㪺㫆㫄㫇㫃㫐㩷㪺㫆㫌㫃㪻
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㩷㫀㫅㫁㫌㫉㫐㪅
㪈㪘㪏㪉㪌㪇㪄㪍㪌㪏㪇㪇
Lx410/450/490 Operator's Manual
1-12
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
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䇭㪉㪅
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䇭㪌㪅
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䇭㪍㪅
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
㪩㪼㪻㫌㪺㪼㩷㫊㫇㪼㪼㪻㩷㫎㪿㪼㫅㩷㫋㫌㫉㫅㫀㫅㪾㩷㫆㫉㩷㫆㫇㪼㫉㪸㫋㫀㫅㪾
㪸㫉㫆㫌㫅㪻㩷㪿㪸㫑㪸㫉㪻㫊㪃㩷㫆㫅㩷㫉㫆㫌㪾㪿㩷㪾㫉㫆㫌㫅㪻㩷㫆㫉
㫊㫋㪼㪼㫇㩷㫊㫃㫆㫇㪼㫊㪅
㪚㫆㫌㫇㫃㪼㩷㪹㫉㪸㫂㪼㩷㫇㪼㪻㪸㫃㫊㩷㫋㫆㪾㪼㫋㪿㪼㫉㩷㪽㫆㫉㩷㪐㪅
㫉㫆㪸㪻㩷㫋㫉㪸㫍㪼㫃㪅
㪈㪇㪅
㪛㫆㩷㫅㫆㫋㩷㪸㫃㫃㫆㫎㩷㫆㫇㪼㫉㪸㫋㫀㫆㫅㩷㫆㪽㩷㫋㪿㪼㩷㫄㪸㪺㪿㫀㫅㪼
㪹㫐㩷㫌㫅㫋㫉㪸㫀㫅㪼㪻㩷㫇㪼㫉㫊㫆㫅㫅㪼㫃㪅
㪈㪈㪅
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
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