Yanmar EF393T Operator's Manual

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OPERATOR’S MANUAL

DIESEL TRACTOR

EF393T

Original instructions

http://yanmar.com

OPERATOR’S MANUAL

0A041-ENXXXX

Oct. 2014

DIESEL TRACTOR

EF393T

Original instructions

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SAFETY

Never attempt to operate or service this machine until you have first read and understood all of the applicable Safety Instructions that are set forth in this Manual.

The failure to comply with all relevant Safety Instructions could result in bodily injury.

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TO THE OWNER

This instruction manual describes how to maintain your tractor in good condition and how to operate it safely and correctly. Please read this manual carefully before using the tractor. Keep this manual close to your tractor , after you have read th rough it. If you lose or damage this manual, ask your YANMAR dealer for a new manual right away.

IMPROVEMENT

Sometimes parts are changed to improve or upgrade the features of the tractor, or for other reasons. Therefore, the parts shown in this manual may not apply to your tractor.

Note:

 All data are subject to change without prior warning. Some illustrations and

photographs may show optional accessories.

 A Roll-over Protective Structure (ROPS) is optional.

SYMBOLS USED

1. Safety-alert Symbol

This is the safety-alert symbol. When you see this symbol on your tractor or in this manual, be alert to the possibility of personal injury and carefully read the messages that follow.

2. Signal Words

The signal words "DANGER" "WARNING" "CAUTION" are used with the safety-alert symbol.

(1) "DANGER" indicates an imminently

hazardous situation which, if not avoided, will result in death or serious injury .

(2) "WARNING" indicates a potentially

hazardous situation which, if not avoided, could result in death or serious injury.

(3) "CAUTION" indicates a potentially

hazardous situation which, if not avoided, could result in minor or moderate injury.

3. Service instructions

(1) This stop symbol indicates important proper

operation or service messages in this manual. When you see this symbol, carefully read the messages that follow.

IMPORTANT

(2) “NOTE” describe precautions to take while

working.

NOTE

4. Measurements

This tractor is of metric design. All hardware are therefore metric (ISO). Make sure to use the specified metric hardware when service becomes necessary.

5. Direction

Right-hand and Left-hand sides of the tractor are determined by facing in the direction of the tractor forward travel.

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TABLE OF CONTENTS

SAFETY INSTRUCTIONS 1 AFTER SALES SERVICES 15 TRACTOR OUTLINE 17 PARTS NAMES 18 LABEL LOCATIONS 19 CONTROLS 21 OPERATIONS

1. Pre-operation checks

2. Break-in (initial 50 hours)

3. Before starting

4. Start and stop 4-1. Start and stop engine 4-2. Start, gear shifting and stop tractor

5. Driving on a road

6. Driving on a slope

7. Driving in and out of fields

8. Setting adequate speed

9. Turning in a field

10. Differential gear lock

11. Loading and unloading

12. Wheel tread

13. Hydraulic power take off

14. Using 3-point hitch

15. Drawbar hitch

16. General precautions on attaching and detaching an implement

17. Power steering

18. Safety frame (ROPS)

19. Tightening torque of bolts and nuts

29 33 33 34 34 35 37 38 38 38 39 39 40 41 42 42 44 44

45 45 45

OPENING BONNET 46 AFTER OPERATION 47

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PERIODICAL SERVICE

1. Check intervals

2. Oil and grease

3. Capacity of oil and water

4. Equivalent oil to transmission fluid TF500

5. Fuel system

5-1. Fuel and refill 5-2. Drain and cleaning of water separator 5-3. Replacing fuel filter (cartridge type)

6. Oil and filter

6-1. Engine oil and filter 6-2. Transmission-hydraulic oil and filter 6-3. Front axle oil

7. Engine coolant

8. Radiator screen

9. Cleaning air cleaner element (dua l element)

10. Checking battery

10-1 Check battery 10-2. Removing and installing battery 10-3. Charging battery

11. Checking pipes and hoses

12. Checking electric wires

13. Greasing

14. Adjusting brake pedal

15. Adjusting clutch pedal

16. Checking steering wheel

17. Adjusting fan belt

18. Checking and adjusting toe-in

19. Replacing fuse

19-1. Fuse box 19-2. Slow blow fuse

20. Checking tire and wheel

21. Color of exhaust gas

49 50 50 50 51 51 51 52 53 53 54 55 56 57 57 58 59 59 60 60 60 61 62 62 63 63 64 64 64 65 65 65

TROUBLESHOOTING 66 SPECIFICATIONS 69 IMPLEMENT CAPACITIES 70

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SAFETY INSTRUCTIONS

DANGER

Read these instructions carefully. Important instructions are given for the safe operation and servicing of the tractor. Failure to follow these instructions is likely to result in an accident involving death or serious injury.

STUDY THE TRACTOR AND

IMPLEMENTS

Do not permit anyone unfamiliar with the tractor or the operations of its implements to use the machine. The operator’s manual should be considered a permanent part of the tractor and should remain with the tractor.

Know the positions and functions of all controls and the meaning of any identification symbols on your controls, gauges, and indicators before attempting to operate the tractor.

Know how to stop the engine in an emergency.

Make sure you understand the capabilities, operating characteristics and limitations of the tractor and implement, such as maximum ballast weight, hydraulic lifting capacity, speed, turning radius, operating clearances etc.

Do not add extra ballast weight to compensate for a load that is too heavy.

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PROTECT OPERATOR SAFELY

Install an approved Roll-over Protective Structure (ROPS) for safe operation. If a tractor rolls over without a ROPS, death or serious injury is likely.

Always fasten the seat belt while operating the tractor with Roll-over Protective Structure (ROPS) up.

Do not use the seat belt if the foldable Roll-over Protective Structure (ROPS) is in the folded position or the tractor does not have the Roll-over Protective Structure (ROPS).

Extreme caution is required when operating a tractor around trees or other overhead obstructions, such as guy wires or power lines. Interference between the ROPS and these obstructions may cause the tractor to tip backwards.

Do not modify any structural portions of the ROPS by welding, bending, grinding or cutting them. If any component of the ROPS is damaged or involved in a rollover incident, replace it with a complete new cage. Do not attempt to repair the original one. Damaged or modified structural parts impair the strength of the ROPS and may lead to injury.

Avoid loose fitting or baggy clothing, torn clothing, bulging pockets, frayed edges or heavy cuffs. Loose frayed and bulky clothing can easily become entangled in rotating parts. Wear work clothes and work shoes or boots. Also you may need a: SAFETY HELMET,

SAFETY SHOES, EYE PROTECTION, HEAVY DUTY GLOVES, HEARING PROTECTION, REFLECTIVE CLOTHING, OR A RESPIRATOR/FILTER MASK.

Wear whatever safety gear and clothing is necessary for the job.

Prolonged exposure to loud noise can cause impairment or permanent loss of hearing. Wear a suitable hearing protective device such as ear protectors or earplugs to protect against objectionable or uncomfortable noise.

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BEFORE OPERATING

Do not operate the tractor when tired, sick, sleepy, drunk, feeling overworked, taking medicine, pregnant, suffering from mental disease or if other improper conditions are present. These conditions impair a person’s skill and judgment. When you begin feeling tired while operating the tractor, take a 10-mi nute brea k to stretch, walk about, lie down or snack. Do not continue if you still feel tired after taking a break.

Remove oil, grease or mud from the hand rails, steps, pedals, controls, and floor to avoid slips or loss of control.

In winter, scrape off any ice or snow on the hand rails, steps, pedals, controls, and floor .

To attach or remove an implement, refer to the implement and tractor manufacturer’s manuals for the proper procedures.

To unhitch an implement, move to a level area, lower the implement to the ground and then block the equipment in position before unhitching. If an implement has wheels, block them to prevent it from rolling.

Make sure

(1) The tractor and implements are in good

condition and properly adjusted.

(2) To check for loo sen ed bolts, adequate

lubricants, damaged or under-inflated tires, safety shields and devices, steering and braking linkages, hydraulic leaks, etc. Refer to this manual for more detailed information.

(3) That implements are properly attached and

hooked up. Check that the PTO U-joint yoke and locking devices are securely latched on their shafts.

(4) That the tractor’s PTO speed matches the

implement’s specifications.

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STARTING

START THE ENGINE SAFELY

If you operate the engine inside a closed building, be sure there is plenty of ventilation before starting the engine. Exhaust fumes are poisonous. Carbon monoxide is especially dangerous because it is odorless and colorless. You can easily be overcome without realizing it. Always stay near the tractor and keep the parking brake set securely while warming it up.

Only start the engine from the operator’s seat. Never start the engine while standing on the ground.

Before you start the engine:

(1) Sit in the operator’s seat and adjust the seat

position if necessary.

(2) Make sure the ROPS is in working condition

and seat belt securely fastened. (3) Lower any implement to the ground. (4) Place speed shift lever and the PTO switch in

neutral. (5) Set the parking brake. (6) Disengage the PTO for the neutral position. (7) Check all the instruments, gauges and indicator

lights. (8) Be sure everyone is clear of the tractor and

implement.

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DURING OPERATION

OPERATE THE TRACTOR SAFELY

Keep people and pets a safe distance away when starting and operating the tractor and implement.

Do not permit any person other than the operator to ride or board the tractor or implements, including any wagons.

Do not play games with the tractor. Never allow children to ride on your lap.

Do not touch the muffler, radiator, engine or other high temperature parts before they have cooled down completely.

Do not try to get on or off a moving tractor or implements. Always use the hand rails and steps and face the tractor when getting on and off. Never use control levers as a hand hold and never step on foot controls when getting on and off. Do not get on the tractor with wet or greasy hands, or muddy shoes. Do not jump off the tractor. Be aware of slippery conditions on the ground.

Make sure you check the connecting points on your equipment.

Keep hands, feet and clothing away from power-driven parts. Keep others away from articulated joints, hitches, drawbar, lift arms, PTO drives, cylinders, and anything else that moves.

Never stand, or allow anyone else to stand, between the tractor and an implement, unless the engine is turned off and the parking brake is engaged securely.

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OPERATE THE TRACTOR SAFELY (continued)

Oversized implements are dangerous for tractor operation and are not safe for you. Refer to the implement’s operator manual for the minimum and maximum horsepower requirements and weights that are allowed. When using a heavy implement in front, always install ballast or an implement on the rear for safe, stable steering control.

When using a heavy implement on a rear 3-point hitch, always install ballast or an implement on the front for safe, stable steering control.

Slow the tractor down when crossing rough ground, tall grass or weeds. Rocks, holes and stumps may be hidden in the brush.

Do not let your tractor bounce. Y ou may lose steering control.

Never use the tractor to round up farm animals.

Do not allow the tractor to coast downhill with the clutch in, or with the gear shift in neutral.

When operating the tractor on a slope, set the wheel tread as wide as possible for maximum stability, reduce the engine speed and avoid quick application of the brakes or sharp turns.

Stay off hills and slopes which are too steep.

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AVOID TIPPING OVER

When starting the tractor on an uphill slope, shift to as low a gear as possible and reduce the engine speed to avoid tipping over backward.

Do not drive near the edge of a gully or a steep embankment. Avoid holes, ditches, etc. which may cause the tractor to tip over, especially on hillsides or steep slopes.

When operating on slopes or rough uneven ground, it is important to have as much distance as possible between the wheels. Operate the tractor carefully at the lowest speed.

Do not pull carts etc. from the top link or the top link hinge, rear axle, or any point above the drawbar. Doing so could cause the tractor to tip over backward. Only attach items to be pulled to the drawbar.

Use care when pulling loads or installing a heavy implement.

(1) Only use approved hitch points. (2) Limit loads to those which you can control

safely. (3) Limit travel speeds so that you can control the

tractor safely. (4) Do not turn too quickly. (5) Use care when backing up. (6) Install the amount of ballast recommended in

the operator’s manual.

Driving forward out of ditch or in muddy conditions, or up a steep slope, could cause the tractor to tip over backward. If the mud is deep enough it will keep the wheels from turning. Then, the tractor will rotate up and back around the axle very quickly. When stuck in muddy conditions, do not remove the implement or ballast weight. Always ba ck out.

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STAY CLEAR OF THE PTO

The PTO shaft safety guard (A) should be installed when the PTO system is not in use.

Make sure that the tractor PTO speed matches the implement’s required PTO speed.

Do not drive or operate the implement beyond the tractor’s PTO speed.

Stop the engine and be sure the PTO has stopped moving before:

(1) Connecting or disconnecting the PTO shaft. (2) Making any adjustment to the PTO drive or

3-point hitch. (3) Adjusting, cleaning or servicing PTO driven

implements.

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TRANSPORTING

Raise all implements and place them in the locked-for-transport position.

Do not drive the tractor on the road with implements in motion.

Couple the brake pedals together for travel at road speeds. (This only applies to models with two brake pedals.)

Do not make sharp turns at road speeds. Always dim your headlights when another vehicle is

coming toward you. Keep the lights adjusted so that they will not blind the driver of another vehicle.

Before going down a steep hill, shift to the lowest speed in order to control tractor with the least braking possible. Do not coast downhill.

Do not stop or start suddenly when going uphill or downhill.

When loading (or unloading) the tractor onto a vehicle, use care as follows:

(1) Use a strong loading ramp or loading dock. (2) Use the lowest reverse speed and drive up the

loading ramp backward. (3) Set the parking brake and place wheel blocks

firmly under the vehicle’s wheels. (4) Do not try to drive onto a trailer from the bank of

a ditch.

Secure the tractor and any other load with chains. Be sure they are tight.

If chains are not available, use rope, wire, blocks, or a winch cable. Check the load after traveling a few kilometers, and every 100 km thereafter, to make sure that the ties are not coming loose. Also, check after rough bumps in the road.

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TOWING

When towing a load that weighs more than the tractor, the trailer should have its own brakes. When towing, drive slowly, avoid hills and apply the brakes gently.

A safety chain will help control an implement being pulled if it accidentally separates from the drawbar while traveling. Using appropriate adapter parts, attach the chain to the tractor drawbar support or to some other specified anchor location. Leave only enough slack in the chain to permit turning.

Do not tow the tractor faster than the tractor’s maximum travel speed in the highest gear, and never more than 25 km/h (16 mph).

Check local regulations concerning towing. Towing is illegal in some countries.

AFTER THE DAY’S OPERATION

PARK THE TRACTOR SAFELY

Park tractor on a firm level surface. When parking the tractor, couple the brake pedals together and set the parking brake securely. When you must park on a slope, position the tractor at a right angle to the slope and set the parking brake securely. Then, block both the front and rear wheels.

Take all possible precautions as follows when leaving tractor unattended:

(1) Disengage the PTO and lower any implement to

the ground. (2) Move all shift levers to neutral. (3) Couple the brake pedals together and set the

parking brake lever. (4) Run the engine for 2 to 3 minutes at one-third

throttle speed and no load in order to cool it. (5) Stop the engine and remove the key. (6) Cycle the hydraulic controls to eliminate any

residual pressure.

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MAINTENANCE AND SERVICE

AVOID EXPLOSIONS OR FIRES

Refuel the tractor when the engine is cool and in a well-ventilated area, preferably outside.

Never fill the fuel tank with the engine running.

Be sure to use the correct type and grade of fuel. Keep all sparks, flames and smoking materials well

away while handling fuel. Ground the fuel funnel or nozzle against the filler neck

on the tractor to prevent sparks.

Do not overfill the tank or spill the fuel. If fuel is spilled, wipe it up immediately . Install the fuel tank cap securely after refueling.

Be sure there is plenty of ventilation before charging the battery. Gas produced while charging the battery is explosive.

Keep all sparks, flames, and smoking materials well away from battery. Hydrogen gas at a concentration as low as 7 per cent can explode in the presence of a spark or open flame and spatter acid. Use a flashlight to check the battery electrolyte level. Never use an open flame or match to check.

Keep the engine clean and free of grass, leaves, or excessive grease.

Let the engine cool down before storing the tractor in an enclosure or covering it with a sheet.

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MAINTENANCE AND SERVICE (continued)

Do not service the tractor while it is in motion or while the engine is running.

Before servicing the tractor, always set the parking brake, block the wheels, lower the implement, release all hydraulic pressure and place all the controls in neutral.

Use only the correct tools and equipment.

Unauthorized modification to the tractor may impair its function, create an unsafe situation and reduce the tractor’s useful working life.

Do not use substitute parts that may not meet the strength and design requirements or may not fit the tractor.

Do not use repair parts not approved by YANMAR.

Remove the radiator cap only when the coolant temperature is low. Wait at least one hour after operation, to allow the coolant to cool down.

Cover the radiator cap with a cloth before opening it and release the pressure gradually before completely removing the cap.

Do not service the hydraulic system when the hydraulic oil is hot.

Do not set the relief valve pressure higher than stated in the tractor or implement specifications.

Do not close off the overflow or bypass lines.

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MAINTENANCE AND SERVICE (continued)

Hydraulic oil or diesel fuel escaping under pressure can penetrate the skin and cause serious injury. Before disconnecting any lines, be sure to relieve all pressure. Before applying pressure, be sure all connections are tight and all components are in good condition.

Fluid escaping under pressure from a very small hole can be almost invisible. Wear safety goggles for eye protection and use a piece of cardboard to check for suspected leaks. Do not use your hands. If injured by escaping fluid, see a doctor at once. Serious infections and other problems can develop if proper medical treatment is not administered immediately.

Disconnect the battery ground cable before working on the electrical system or working in any area where you might come into contact with electrical components. Disconnect the ground cable first and reconnect it last.

The sulfuric acid in a battery is poisonous. It can destroy clothing and burn the skin. Wear eye protection and rubber gloves when filling the battery. If you spill acid on yourself, flush your skin with water and apply baking soda or lime to neutralize the acid. Then seek medical attention right away. If acid is swallowed, get medical attention immediately!

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Storage

Whenever the tractor will not be used for a few months, do the following:

(1) Drain the fuel tank. (2) Lower any implement still attached. (3) Set the parking brake and block the wheels. (4) Remove the battery and store it in a cool, dry

place, out of the reach of children.

CAUTION

ALWAYS BE ENVIRONMENTALLY

RESPONSIBLE

 Follow the guidelines of the governmental agency

for the proper disposal of hazardous materials such as engine oil, diesel fuel, engine coolant and, machine fluid, grease.

 NEVER dispose of hazardous materials

irresponsibly by dumping them into a sewer, on the ground, or into groundwater or waterways.

 Failure to follow these procedures may seriously

harm the environment.

 Comply with legal regulations and guidelines for

disposal of: empty containers for fuel, cooling water (coolant), oil, grease; fuel/oil filters; batteries; machine itself; machine accessories; and packaging materials.

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AFTER SALES SERVICES

After sales services

When your tractor is not working normally, check it referring to the troubleshooting section. You can of course consult with your service representative.

Whenever you ask service to your service representative, following information are very helpful to identify your tractor.

1) The label of tractor model name and serial number (A) is on the left rear fender and the stamp of the serial number (B) is on right side of front frame.

2) Engine model name and serial number (C).

3) Hour-meter (D) shows estimated hours of operation. Turn on key switch to read hours.

4) Operating conditions. Kind of work and implement used when a problem is happened.

5) Any other information when a trouble is occurred. Noise, vibration, function etc.

Availability of spare parts

Maintenance parts or spare parts are available for 10 years after the production of this tractor series has been discontinued. However, special parts will be subject to consultation. Yanmar may be able to supply a particular part after the normal supplying period.

(A) Tractor model name & serial number

(B) Tractor serial number

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WARNING

 Do not move the tractor if the wheel mounting bolts or

nuts are loose. If the tractor is driven with loose nuts or bolts, there is a possibility that an accident will occur.

 Make daily and periodic wheel inspections to check for

loose nuts and bolts on the wheels. If they are loose, retighten them to the specified torque.

IMPORTANT The first 50 hours of handling and maintenance greatly affect the service life and performance of a new tractor. In particular, pay special attention to the following points during this period of time.

(1) Refrain from sudden acceleration and sudden

braking. (2) Do not increase the speed too much or carry any

more load than is necessary. (3) Operate the tractor only after the engine has warmed

up sufficiently. (4) Slow down on a rough road or on a slope. (5) Check the tightness of the wheel mounting bolts

after the first 10 hours and again after the first 50

hours. If they are loose, retighten them. (For specific

tightening torques, refer to the table in the instruction

manual.)

IMPORTANT When the tractor gets stuck in a muddy portion in field, do not tie a piece of lumber, log or pipe to the front or re ar wheels to drive out of the muddy portion. It may break transmission and/or rear axle inner parts or cases.

Put a ladder bridge under the wheels and then drive out. Or use strong rope or chain to pull it out of the muddy portion slowly by the other tractor or so.

Note:

These photos show rear tire with cage wheel.

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TRACTOR OUTLINE

(1) (2) (3) (4) (5) (6) (7)

Head light T urn signal lamp Tail lamp Fuel refill port Operator’s seat Sub-step Bonnet

(8) (9) (10) (11) (12) (13) (14)

Lower link T op link Fender, R Fender, L Front tire Rear tire ROPS (Safety frame)

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PARTS NAMES

(1) Main switch (2) Accelerator lever (3) Parking brake lever (4) Combination switch

Head light, turn signal, horn (5) Reverser lever (6) Clutch pedal

(7) Range gear shift lever (8) PTO gear shift lever

(9) Brake pedal connector (10) Brake pedal (1 1) Foot accelerator pedal (12) Main gear shift lever

(13) Position control lever (14) Differential gear lock pedal (15) Seat adjust lever (16) Stop & slow return valve (17) Front wheel drive lever (18) Seat belt

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Meter panel indicators

(1) Fuel gauge (2) Engine coolant alarm lamp (3) Engine speed meter, RPM

(4) Hour meter (5) Battery charge pilot lamp (6) Engine oil pressure pilot lamp

LABEL LOCATIONS

Keep the safety instructions labels clean and clearly visible for your safety. If any of them are damaged or missing, replace them with new ones.

(1) 1A8310-65340 Label, fire caution

(2) 198163-65930 Label, caution muffler

(3) 1A8310-65310 Label, caution

(4)198283-65651 Label, Thailand only

(5) (6) 1A7874-65360

Label, brake coupling

(13) 1A8310-65300 Label, warning escape

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(7) 198163-65930 Label, caution muffler

(8) 198163-65940 Label, safety cover

(9) 1A6150-93151 Label, PTO shaft cover

(10) 198163-65350 Label, danger shaft rotate

(1 1) 198163-65950 Label, seat belt

(12)

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CONTROLS

ENGINE Main switch

The switch is used to turn on and off the engine

OFF

The electric current is shut off. The engine stops. (The key can be removed.)

(5) Battery charge lamp (6) Engine oil pressure lamp

The electric current is on. If the engine is stopped, the engine oil pressure lamp (6) and battery charge lamp (5) turn on.

START Starter motor runs to start the engine, when

range shift lever is at neutral. Release the key when the engine starts and the key returns to the “ON” position automatically.

Accelerator lever

The accelerator lever (A) is used to increase or decrease the engine speed or keep the engine at a constant speed.

(A) Accelerator lever (S) Slower engine speed (F) Faster engine speed

Accelerator pedal

The accelerator pedal (A) is used to increase or decrease the engine speed, mainly during travel on a road. To increase the engine speed, depress the pedal.

(A) Accelerator pedal

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TRAVELLING, PTO RE RELATED FUNCTIONS Main shift lever

The transmission has 4 main gear shifts. Depress the clutch pedal fully, and move the lever to desired position.

(A) Main shift lever

IMPORTANT Be sure the tractor stops whenever shifting. If not, it may cause damage to transmission gears.

Range shift lever The transmission has 2 range gear shift aside from 4

main gear shifts.

(B) Range shift lever

2: High Speed range 1: Low speed range N: Neutral

IMPORTANT Be sure tractor stops when shifting. Do not change Range shift lever while moving.

Reverser lever

Reverser lever changes the direction of travel of the tractor, forward or reverse. Depress the clutch pedal and stop tractor whenever shift the lever.

Lift up the lever to put it in a required position.

(A) Reverser lever

F: Forward N: Neutral R: Reverse

WARNING Be sure to stop the tractor when shifting. Never change Reverser lever while moving. Sudden change of running direction back and forward may cause serious injury.

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PTO shift lever

The transmission has 2 PTO speeds. To change the speed, depress the clutch pedal fully.

PTO speed at engine 2,800 rpm

1 584 rpm 2 836 rpm

CAUTION Strictly maintain the PTO speed as specified by the implement. Otherwise, the implement or transmission can be damaged and may cause an injury.

Brake pedal

Tractor has brake pedals for right and le ft turn independently and they can be applied separately. For a sharp turn in the field, depress the brake in which direction you want to turn. For driving on a road, be sure to connect both pedals with the connector.

To avoid unnecessary wear of brake discs, do not rest foot on the brake pedal during operation.

(A) Brake pedals (B) Brake pedal connector

WARNING Be sure to connect the both brake pedals with the connector when driving on a road. Tractor may turn over by one-sided braking in high speed.

Parking brake lever To apply parking brake;

Connect brake pedals, depress brake pedals and raise parking brake lever.

To release parking brake; Depress brake pedals slightly and down parking brake lever.

(A) Parking brake lever (B) Brake pedals (C) Brake connector (L) Apply parking brake (R) Release parking brake

CAUTION Be sure to connect the both brake pedals with the connector when applying parking brake. If not, only left tire is locked and it may not brake tractor sufficiently.

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Clutch pedal

The clutch is a device for connecting and disconnecting engine power to the transmission.

To disconnect engine power to the transmission, depress the clutch pedal fully. To connect the engine power, release the clutch pedal gradually and the engine power transmits to transmission.

IMPORTANT Do not rest your foot on the clutch pedal while operating. The clutch disc may wear prematurely.

(A) Clutch pedal

Differential gear lock pedal A differential gear system is equipped on front and rear

axles of this tractor for smooth turning. Depressing this pedal locks rear axle differential gear

box and rear wheels rotate as if right and left axles are connected. When one side rear wheel spins and the other does not rotate, depress the pedal to lock the differential gear for escaping. To unlock differential, release the depressed pedal.

IMPORTANT When differential gear is locked, drive tractor slow speed and keep going straight. Never steer tractor while depressing the pedal.

WARNING Never fail to unlock the differential gear after escaping from the place. Otherwise, you cannot make an intended turn and an accident may result.

(A) Differential gear lock pedal

(R) Release lock (release pedal) (L) Lock differential gear

(keep depressing pedal)

Front wheel drive lever

The lever engages or disengages front wheel drive. Depress clutch pedal and move the lever when tractor stops.

(A) Front wheel drive lever

(2w) OFF: Two-wheel drive (4w) ON: Four-wheel drive

IMPORTANT Be sure to stop the tractor whenever move the lever. Disengage front wheel drive when drive with high gear on a road, hard surface place or towing trailer. The front tire may wear prematurely or front axle gears may break in case of heavy braking.

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HYDRAULIC SYSTEM Position control lever

Position control lever holds desired height of a rear hitched implement.

Lever stopper (B) limits lowering an implement to limit the working range of the lever, or when t raveling o n road.

(A) Position control lever (B) Lever stopper (C) Raise (D) Lower

Hydraulic stop and slow return valve The stop and slow return valve controls lowering speed

of implement.

(A) Hydraulic stop and slow return valve (C) The lowering speed of implement becomes

slower and it stops hydraulic flow when turned fully.

(O) It opens the valve and the lowering speed of

implement becomes fast (normal speed).

IMPORTANT

When driving on a road with rear hitched implement, open the hydraulic stop and slow return valve and fix the hydraulic control lever in raise position with stopper .

Do not operate the hydraulic control lever when the valve is fully closed. Otherwise, it may damage hydraulic parts.

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ELECTRIC SYSTEM T urn signal switch

Turn signal functions when key switch turns on. Turn the turn signal switch anticlockwise to blink right side turn signal lamp and turn clockwise to blink left side lamp.

(A) Turn signal switch

(R) Right lamp blinks.

(L) Left lamp blinks. Head light switch Headlights turn on when key switch turns on.

Turn head light switch clockwise to turn on head lights.

(B) Light switch

(OFF) Headlights turn off.

(L) Headlights turn on with low beam.

(H) Headlights turn on with high beam.

CAUTION When there is an oncoming vehicle in night time, be sure to switch to low beam position. If keep on high beam, it may cause traffic accident.

Horn button Horn functions in any positions of the key switch.

Push horn button to blow horn.

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INSTRUMENT PANEL

(1) Fuel gauge (2) Engine coolant alarm lamp (3) Tachometer (4) Hour meter (5) Battery charge pilot lamp (6) Engine oil pressure pilot lamp

(1) Fuel gauge It indicates fuel level remained in fuel tank when key switch turns on.

(a) Full (b) 1/2 (c) Empty soon (d) Empty warning

The fuel tank will be empty in a short time.

The indicated amount is approximate.

(2) Engine coolant alarm lamp

It indicates engine coolant temperature. If the lamp turns on, reduce engine speed to idling and wait for cooling down. Find out the cause and call your dealer if necessary.

When the lamp is; (1) turning on: 100 degree centigrade (2) blinking: 110 degree centigrade or short circuit

(3) T ach ometer

Indicates engine speed in revolution per minute (RPM). It also indicates PTO shaft speed 540rpm when the needle stands at the yellow mark in the position 1 of PTO shift lever.

(A) Yellow mark

(4) Hour meter

It shows actual operating time of the engine in hourly unit. It counts whenever the engine is running. For example, 10.5 means 10 hours and 30 minutes of the engine running time.

(5) Battery charge pilot lamp

This lamp lights when the key switch is in “ON” position. The charge lamp turns off when engine starts. If the lamp does not turn off at 1500rpm engine speed or higher, see your dealer.

(6) Engine oil pressure pilot lamp

This lamp lights when the key switch is in “ON” position and goes of f when the engine starts. If the lamp does not turn off after engine starts, stop the engine immediately and check oil level. If oil level is sufficient, see your dealer.

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OTHERS Seat adjust lever

It adjusts the operator’s seat position in 5 steps backward or forward. Raise the lever and slide forward or backward to desired position. Lower the lever to latch the seat.

(A) Seat adjust lever

Seat belt

WARNING  Always fasten seat belt while operating the tractor with

the Roll-over Protective Structure (ROPS).

 Do not use the seat belt if the tractor does not have the

ROPS.

(A) Seat belt (B) PRESS button

Fasten the seat belt properly without twisting. Adjust the belt length to operator figure.

Press “PRESS” button on the buckle to unfasten seat belt.

Opening bonnet (1) Raise the lever to open bonnet. The bonnet goes up

and is hold with gas damper.

(A) Bonnet open lever (B) Gas damper

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OPERATIONS

1. Pre-operation checks

DANGER

1) Never smoke or use bare lamps/lights during oil

replenishing.

2) Never fill fuel oil while the engine is running or hot.

3) After filling fuel, be sure to cover the fuel tank with

screw-top and wipe off spilled fuel. If not, a fire may be caused.

4) Check the fuel lines daily. Fuel leaks on a damaged

fuel line.

WARNING

1) Whenever servicing the tractor, place it on a flat and

leveled area. Be sure no traffic neither people around the tractor. Otherwise, the tractor can cause an unexpected accident.

2) Whenever servicing under rear hitched implement,

close hydraulic stop and slow return valve (A) and place lock device or support to the implement. Otherwise the implement may fall down incidentally and it can cause injuries.

CAUTION

1) Never fail to stop the engine before checks or

maintenance. If not, you may be trapped in a rotating part and heavily injured.

2) To check or service the tractor, wait until the engine and

muffler are cooled down. If not, you may got burned and be injured.

3) Never fail to reinstall covers and parts detached for

service. Otherwise, you may be trapped in the tractor and heavily injured.

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For safety reasons, always check the tractor before day's work. Remove any abnormalities.

At least check the followings in order:

(1) Abnormalities in previo us day (2) Walk around the tractor to look into:

• Deformed, damaged, wearing or lost exposed parts

• Air inflation pressure and wear of tires

• Loosened or lost bolts and nuts of the tire rims and disks

(3) Check inside the bonnet

• Engine oil level and leaks.

• Fuel oil amount, leak and damages on fuel lines.

• Engine coolant level, leaks and damage on lines.

• Battery electrolyte (liquid). Depending on battery type; Check electrolyte level, to be between upper and lower limit. Check the color of the hydrometer , to be green.

• Clogging or dirt in air filter.

• Tension or damage of cooling fan belt.

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• Radiator screen, grille and engine room for dust.

• Hydraulic joint and lines for damages and loose connection.

• Check electrical wirings for wear or damages of lead sheaths and loose connections.

(4) Check operating system

• Play of brake pedals. Brake pedals must have reasonable play (A) and plays of both right and left brake pedals must be equal. (25-35mm)

• Play of clutch pedal. Clutch pedal must have reasonable play (A).

(15-25mm)

• Play of steering wheel. Steering wheel must have reasonable play (A).

(20-50mm)

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(5) Check hitched implement

• PTO Drive shaft lock pin must be in groove of

PTO output and input shafts.

• Pins must be inserted in proper positions.

• Loosened bolts and nuts.

• Damaged or worn parts.

• Connection of 3-point linkage.

(6) Start the engine and check:

• Abnormal sound or noise.

• Color and smell of exhaust gas.

• Function of each lamp, gauge and meter

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2. Break-in (initial 50 hours)

The new tractor should be carefully operated for the first 50 hours. It will surely have an effect on the lifetime and performance of the tractor throughout the life. Pay attention to the following points in particular:

(1) Avoid quick start or abrupt brake if it is not in

emergency case.

(2) Do not operate in higher speed or heavier load more

than necessary. Do not operate with full load. Avoid from operation such engine speed comes down by a load or smoke while working.

(3) Start operation after the engine is sufficiently warmed

up. (4) Slow down on the rough road or slope. (5) Check tire fixing bolts at the first 10 hours and 50

hours operation. If loosened, tighten it.

See “12. Wheel tread” for bolt tightening torque. (6) Check the tractor at the time of first 50 hours

operation.

3. Before starting

WARNING

1) Before starting the engine, sit on the operator’s seat and make sure shift levers (reverser, PTO shift, range shift, main shift) are at neutral position, and position control lever is at down position. Negligence may cause tractor sudden start and serious injury.

2) Do not run engine in a closed room. Run the engine in well-ventilated area. If you are forced to start the engine in a confined room, make sure the ventilation is proper. Exhaust gas is poisonous and it can lead to death.

CAUTION

1) Before and after operation, never fail to check and service the tractor. Particular check will be required at brake pedals, controls, steering devices and tire rim fitting bolts. Negligence can cause a heavy injury or accident to the tractor and the human.

2) Set the parking brake during the warm-up operation. Otherwise the tractor may abruptly start to run.

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4. Start and stop

4-1. Start and stop engine Start engine

IMPORTANT

1) Do not run the engine starter motor for more than 10 seconds. It may cause a breakage of the starter motor. If the engine does not start, keep it cool for 2-5 minutes before retry. Then, execute steps (3) (4).

2) Never turn the main switch to start position while engine is running.

(1) Open the fuel cock of water separator (A).

(A) Water separator (B) Fuel cock (O) Open

(2) Put the reverser lever and PTO shift lever to ”N”

position.

(3) Set position control lever in the LOW position.

Make sure that the implement is lowered.

(4) Push accelerator lever forward to higher speed

position.

(5) Insert the key and turn it to “ON” position.

Check pilot lamps on meter panel;

(A) Battery charge pilot lamp is on. (B) Engine oil pressure pilot lamp is on.

(6) Turn the key switch to “START” position. (7) As engine starts, immediately release key switch and it

goes back to “ON” position automatically.

When engine starts, battery charge and engine pressure pilot lamps turn off.

(8) Warm up the engine by running without load at 1500

rpm for about 5 minutes. Especially if the temperature is below 0°C, at least 10 minutes warm-up is required.

(A) Reverser lever

(A) Position control lever

(A) Accelerator lever

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Stop engine

(1) Pull accelerator lever (A) rearward (S) to decrease

engine speeds. (2) Turn key switch to “ OFF” position. (3) See main shift lever, range shift lever, reverser

lever and PTO shift lever are in neutral positions.

IMPORTANT

Sudden stop of heated engine may cause engine overheating. Prior to stop engine, keep engine running at 1200 - 1500 rpm for about 2 minutes to cool down.

(A) Accelerator lever (S) Slow speed

4-2. Start, gear shifting and stop tractor Start tractor

(1) Be sure right and left brake pedals are connected

by connector.

(2) Set engine speed about 1500 rpm.

(A) Brake pedals (B) Connector

(3) Move position control lever backward and raise rear

hitched implement.

(A) Position control lever (C) Raise rear hitch implement

(4) Depress clutch pedal fully and shift main shift lever

and range shift lever to desired speed.

(A) Main shift lever (B) Range shift lever

(5) Shift reverser lever to forward or reverse. (6) Release clutch pedal gradually and tractor starts.

IMPORTANT

1) Never rest your foot on clutch pedal while operating.

It will cause premature wearing of clutch disc.

2) Be sure to apply the parking brake when you leave

the tractor.

3) Look around the tractor before starting.

(A) Reverser lever (N) Neutral (F) Forward (R) Reverse

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Gear shifting

(1) Main shift lever

Depress clutch pedal fully and shift lever to desired speed after tractor stops.

(2) Range shift lever

Depress clutch pedal fully and shift reverser lever to desired speed after tractor stops.

(3) Reverser lever

Depress clutch pedal fully and shift reverser lever to (F) or (R) after tractor stops.

IMPORTANT

Never shift the main shift, range shift and reverser lever while tractor is moving. If not, it may cause breakage of transmission inner gear.

Stop tractor

(1) Pull accelerator lever backward to reduce speed. (2) Depress clutch pedal and brake pedals at the same

time. (3) Shift range shift, reverser and PTO shift levers to

“N” position. (4) Make sure brake pedals are connected with

connector and apply parking brake (lock brake pedal

with parking brake lever). (5) Lower rear hitch implement if it is attached. (6) Turn key switch to “OFF” position and remove the

key.

(A) Parking brake lever (B) Brake pedals (C) Connector (L) Lock (R) Release

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5. Driving on a road

WARNING

1) Make sure that left and right brake pedals are

connected whenever traveling on a road or cross a farm ridge. One-sided braking effect will roll over the tractor or result in a sharp turn.

2) Follow the traffic regulations and rules in your place

when running on a road. Strictly one operator only on tractor.

CAUTION Remove an implement when traveling on a road. If not, an accident may result in. Put the PTO shift lever in “N”.

(1) Connect right and left brake. (2) Shift PTO shift lever to “N” position. (3) Open hydraulic stop and slow return valve fully.

(A) Hydraulic stop and slow return valve (O) Open valve

(4) Move position control lever up and lock it with

stopper.

CAUTION Make sure that position control lever is held when traveling on a road. If not, hand may touch position control lever incidentally and implement would go down. It may cause an accident and injury.

(A) Brake pedals (B) Connector

(A) Position control lever (B) Stopper (C) Raise rear hitched implement

IMPORTANT

1) Adjust the traveling speed with the foot accelerator

pedal.

2) When you turn tractor or change traveling course,

notify others by turning signal lamp.

3) When there is on-coming vehicle in night time, make

headlight be low beam.

4) Disengage front wheel drive except in special case.

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6. Driving on a slope

WARNING

1) Select a correct speed before approaching a slope.

Never change shift levers on a slope. Tractor may coast down unintentionally.

2) Never travel on the slope with reverser lever, main

shift lever or range shift lever set in “N” position.

3) Never depress the clutch pedal on a slope. Tractor

may coast down unintentionally and it may cause an accident.

4) To start on an up-slope, shift gears to low speed and

engage clutch slowly and carefully. Abrupt start will jump up the front wheel.

5) Do not park tractor on a slope as much as possible.

If it is required, apply parking brake and put wheel

block to avoid from coasting down. (1) Select slow speed before going into a slope. (2) Travel slowly on a slo pe. (3) Apply engine bra ke on a down-slope.

7. Driving in and out of a field

WARNING

1) Be sure to connect left and right brake pedals with

connector. One-sided brake results in causing a

roll over.

2) In case field ridge is high, use a gangplank with

sufficient strength. Lower an implement and go

through ridge in slow speed.

3) If a way to field is steep slope, go up with a reverse

gear.

(A) Ridge

8. Setting adequate speed

8 forward speeds and 8 reverse speeds are available by the combination of main, range and reverser shift levers. Select adequate speed for works.

Suggested operation by working speed.

Shift

Main

shift

Range

shift

Speed

(km/hr)

Operation

F1 1

1.90 Rotary

F2 2 2.74 F3 3 3.92 F4 4 5.91 Spreader F5 1

6.79

Plow

F6 2 9.79 F7 3 14.0

Traveling with

the trailer

F8 4 21.1

(At engine speed: 2800rpm)

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9. T urning in a field

WARNING Release foot from differential lock pedal to release differential gear before turning. Otherwise, tractor cannot turn when it is, required and an accident may result.

Unlatch brake pedal connector in a field. (1) Reduce the engine speed. (2) Move position control lever rearward to raise the

implement

(3) Turn steering wh eel to desired direction and

depress brake pedal in the same direction of steering wheel turn at the same time.

Ex: When you turn steering wheel clockwise to turn right, depress right side brake at the same time.

(A) Differential lock pedal (R) Release

(B) Brake pedal (C) Brake pedal connector

10. Differential gear lock

WARNING

1) Release differential gear lock before making a turn.

Otherwise, tractor cannot turn and an accident will result.

2) Never depress differential lock pedal while traveling

on a road. If you depress the pedal, you could not steer and may cause an accident and injury.

Differential gear lock system is effective when one side rear wheel is locked and the other tire slips. When differential gear is locked, right and left rear axle rotate as if both axles are connected. It is easier to go out from muddy and slippery place.

Operation (1) Lower engine speed. (2) Depress differential lock pedal. (3) Release the pedal to unlock differential gear lock.

If it is difficult to unlock the differential system, depress clutch pedal or step on right and left brake pedal alternately.

IMPORTANT

 Never turn steering wheel while differential lock

pedal is depressed.

(A) Differential lock pedal (R) Release lock (Release pedal) (L) Apply differential lock (Depress pedal)

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11. Loading and unloading

DANGER

1) Never steer tractor on loading bridge while loading into or unloading from cargo truck. Drive tractor in slowest speed. If not, loss of control can result in injure or damage the tractor.

2) Never depress clutch pedal on loading bridge. Tractor may coast down and cause injury.

3) Connect left and right brake pedals with the connector. If not, tractor may steer unintentionally when depress one side brake pedal only. Tractor may fall down from loading bridge and may cause injury.

4) Never stand against loading bridge. Be away from loading work.

WARNING

1) Loading bridge must be of sufficient size, st rength and with anti-slip surface. Length of the loading bridge must be longer than 4-time of floor deck height. Fix loading bridge with floor deck of truck.

2) Reverse tractor for loading into truck, go forward for unloading. Shift gear to slow speed.

3) Tie tractor firmly to truck with a rope of sufficient strength.

(1) Loading truck preparation

Park the truck on a flat and leveled place where is wide enough and no traffic expected. Stop truck engine and apply the parking brake. Block wheels of the truck.

(2) Loading

Connect right and left brake pedals with the connector. Shift gear levers to slow speed. Slow down engine speed and reverse tractor to load. Make sure tractor is aligned with loading bridge.

[If engine stops on loading bridge] Depress brake pedal immediately and gradually release brake pedal to go down slowly. Start engine and load again.

(3) On the floor deck

Apply parking brake of tractor. Stop tractor engine. Lower rear hitched implement if any. Tie tractor with truck

(4) Unloading

Untie tractor. Start engine and shift gears to low speed. Raise rear hitched implement if any. Start tractor forward in slow speed. Do not steer.

(A) Brake pedal (B) Connector

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12. Wheel tread

IMPORTANT

The tread of front and rear wheel is not adjustable.

Wheel tread

Tire Size

(ply rate) Wheel tread (mm)

Front 8-16 (4) 1,065

Rear 12.4-24 (6) 1,120

Rear wheel

(A) Wheel disc (a) Wheel tread

Tightening torque of wheel disc mounting bult and nut

Tire N-m

Kgf-m

Front 118-147 12.5-15.0

Rear 177-196 18.0-20.0

Front wheel disc mounting bolt: M14x24 fine tread

Rear wheel disc monting bolt and nut

(a) Bolt M14x24 fine tread (b) Stud bolt M14x31 fine trad, nut M14 fine tread

and lock washer M14

DANGER

 Do not move the tractor if the wheel mounting bolts

or nuts are loose. If the tractor is driven with loose nuts or bolts, there is a possibility that an accident will occur.

 Make daily and periodic wheel inspections to check

for loose nuts and bolts on the wheels. If they are loose, retighten them to the specified torque.

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13. Hydraulic power take off Single action cylinder

In case of single action cylinder, remove the hydraulic outlet plug (A) on right side of control valve, and connect hydraulic hose from cylinder of implement.

<Operation> (1) Set the position control lever in the lower position.

(2) Fasten the hydraulic stop/slow return valve (B) at

fully clockwise position.

(3) Operate the position control lever to move the

implement.

(A) Hydraulic outlet (single action) (G3/8) (B) Hydraulic stop/slow return valve (C) Hydraulic outlet (double action, out) (G3/8) (D) Hydraulic outlet (double action, in) (G3/8) (E) High pressure pipe (F) Relief valve (G) Hydraulic control valve

Double action cylinder

<Connection> (1) Remove operator’s seat. (2) Remove the dust cover under the seat. (3) Remove the high pressure pipe (E). (4) Connect hydraulic hose to port (C) that the oil goes

to SCV and connect hose to port (D) that oil comes back from SCV.

(5) Install the dust cover and the seat. Keep the high pressure pipe for the time when

removing SCV.

14. Using 3-point hitch 3-point rear hitch type is Category 1.

T op link Adjust length of top link (A) to implement. Loosen

lock nut turn turnbuckle on top link and adjust the length. Follow instructions of implements.

(A) Top link (BL) Lift link, Left (BR) Lift link, Right (C) Check chain (D) Lower link

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Lift link and lower link

Set lower link hole and lift link hole according to implement and work.

Lower link hitch point height

Lower link

Lift link

hole (a)

Lift link

hole (b)

Lift link

hole (c)

hole

Hitch point

height

(1)

270 212

162

857 817

785

(2)

X 453 403 338 Y 848 818 785

(mm) X: Minimum height of lower link hitch point Y: Maximum height of lower ling hitch point

Heights would vary according to tire air pressure, lift arm free play and/or field condition etc.

(A) Lower link (B) Lift link (C) Lift arm (D) Ground

Check chain Check chain adjustment. (1) For implements such as a plough, harrow and su bsoil

plow, adjust check chains so as an imple ment could be swung about 5 cm. Make sure that lower ling does not hit tire.

(2) For implements such as a rotary tiller and mower,

adjust check chains so that an implement can move 1cm to right and left.

IMPORTANT When an implement is not attached to tractor, tie lower links to avoid from hitting rear tire while driving.

(E)

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15. Drawbar hitch Use Drawbar when towing a trailer.

IMPORTANT

Remove the drawbar if the drawbar interferes with an implement. When attaching a PTO driven implement, PTO drive shaft may interfere with the drawbar and it may cause breakage of related parts.

(A) Drawbar

16. General precautions on attaching and detaching an

implement

WARNING

1) When moving the tractor to attach an implement, never

allow a person between the tractor and the implement. Always keep the moving speed in the lowest.

2) Attach or detach an implement on a flat and leveled

ground in a safe way. Use lights during nighttime work.

3) When leaving the tractor for attaching or detaching an

implement, never fail to set the parking brake and stop the engine.

4) Be sure to use the tractor’s original drawbar hitch for

towing work.

5) Attaching an implement results in a considerable longer

overall length. Pay attention to bystanders or constructions nearby when driving tractor.

6) Never place objects on the tractor or try to use your own

body as counterbalance the tractor. Use only authorized genuine balance weight or implement.

7) Maximum counter weight on front bracket and rear wheel

is; Front bracket: 150 kgs Rear wheel weight: 100kgs for each wheel

8) Add the front weight so that the weight of the front axle

may always become 20% or more of the total weight.

9) Install a cover on PTO shaft when it is not used.

Otherwise, it may cause injury.

10) For safe and correct operations, read the instruction

manual for an implement.

Negligence of safety precautions causes a serious injury or death.

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17. Power steering

This tractor is equipped with hydrostatic powered steering system.

The hydraulic power assists steering works only when the engine is running. The steering wheel may become a little heavier at low engine speeds

WARNING Whenever the engine is running, steering wheel turns with light force. Avoid from abrupt steering or it may cause uncontrollable steering and may cause accident or injury.

IMPORTANT

1) When the steering wheel is turned to its end, the relief

valve works and chirp sound comes out. If relief valve works in a short time, it is not a problem but long time work of valve may cause trouble in the hydraulic system.

2) When tractor dose not run, do not turn steering wheel

as much as possible. It may cause damage on tires or rims.

18. Safety frame (ROPS)

The safety frame is designed to protect the driver from an accident. Never fail to use the safety frame when the tractor is in use.

WARNING

 Always fasten the seat belt while operating the tractor

with Roll-over Protective Structure up.

 Do not use the seat belt if the foldable Roll-over

Protective Structure (ROPS) is in the folded position or the tractor does not have the ROPS.

 Do not modify the safety frame. Safety factor can be

lost.

 Damaged frame should be replaced as a complete set.

Partial repair may lead loss of safety level.

19. Tightening torque of bolts and nuts Bolts and nuts being used on this tractor are of grade “7T”

unless otherwise grade is not specified in this manual. Tighten torques show on right table.

Bolt size Grade 7T

(mm) (N-m) (kgf-m)

M6 8 - 12 0.8 - 1.2

M8 23 - 30 2.3 - 3.0 M10 44 - 59 4.5 - 6.0 M12 78 - 98 8.0 - 10.0 M14 1 18 - 147 12.0 - 15.0 M16 167 - 206 17.0 - 21.0 M18 235 - 284 24.0 - 29.0 M20 323 - 402 33.0 - 41.0

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OPENING BONNET

Bonnet Opening

(1) Pull up the bonnet lever (A) to release the bonnet

lock.

(2) Lift the bonnet. The damper (B) keeps the bonnet

open.

(A) Bonnet lever

Closing

(1) Push down the bonnet. (2) Make sure the bonnet is locked securely after

closing the bonnet.

(B) Bonnet damper

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AFTER OPERATION

1. After operation

Clean thoroughly the tractor after daily operation to keep it in good condition for a long time. In particular, clean lower and front areas before storing it.

Wash the tractor with water and wipe off. Lubricate moving parts and sliding parts. Apply grease to all grease nipples especially after working in wet field.

IMPORTANT

Do not splash or

spray water on electrical parts. Water can

cause a trouble in the electrical system.

2. Care for long period of storage

WARNING When tractor is stored for a long time, remove the battery and main key. Deterioration of electric wire or rat biting may cause electric leakage and may start a fire.

When storing for a long time, take following procedures. (1) Turn off all switches and remove the main switch key. (2) Place the tractor in a well ventilated place and remove

counterbalance weights or other implements.

(3) Coat exposed metallic parts with anti-rusting oils, engine

oils or greases.

(4) Fill up the fuel tank with fuel. Otherwise, moisture will

develop in the tank and cause rust. Close cock of water separator and fuel filter.

(5) Charge the battery fully. Remove the battery from the

tractor and keep it in a dark and cool place. If the battery is kept on the tractor, be sure to disconn ect the ground line (negative lead).

(6) Drain coolant from the engine.

Move the hose clip and pull out the drain plug.

IMPORTANT The battery is subject to self-discharge. Charge it fully at least once a month.

(A) Coolant drain plug (B) Hose clip

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(7) Put blocks or stands under tractor to take weight off

tires. Protect tires from heat and sunlight.

(8) Inflate the front and rear tires with air to the normal

pressure.

Size, (ply number) kg/cm

(kPa) Front tire 8-16, (4) 1.6 (157) Rear tire 12.4-24, (6) 1.6 (157)

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PERIODICAL SERVICE

WARNING

1) Stop the engine before servicing.

2) Service tractor on a flat and leveled place, free from normal traffic and bystanders.

3) Fix the tractor wheels not to move.

CAUTION Check periodically fuel lines and power steering hoses for damages, wearing a nd loose connections. If there is damage, wearing or loose, be sure to see your dealer. Otherwise an accident or injury can result.

Periodic inspection and maintenance in off-season will ensure the preferable conditions of your tractor. To keep your tractor working in good conditions, ask your service dealer for a regular inspection.

It is recommended to replace fuel pipes, rubber hoses, and electrical wires every two years at least.

1. Check intervals

O: Replace x: Checks required

CHECK ITEMS 50 h 100h 150h 200h 250h 300h 350h 400h 450h 500h 550h 600h Engine lubrication oil

O O O O O O O

Transmission oil

O x x x x O x x x x x O

Front axle oil

O x x x x O x x x x x O

Engine oil element

O O O

Radiator interior

Clean the interior of radiator when replacing cooling water

Water separator element

Clean Clean Clean Clean Clean Clean Clean Clean Clean Clean Clean Clean

Fuel filter

O O

Cooling water (Replace)

Check before every work (Replacing every year)

Transmission oil filter

O O O

Air cleaner element

x x x x x O x x x x x O

Clean dust net

x x x x x x x x x x x x

Clean cooling fan, radiator

x x x x x x x x x x x x

Battery liquid level Check before every work Battery liquid gravity

x x x x x x

Fuel piping, connections

x x x x x x x x x x x x

Rubber hoses (Power steering)

x x x x x x x x x x x x

Radiator hoses Replace hoses every two years Hydraulic rubber hoses Replace hoses every two years Fuel pipe, electric wires Replace pipes and wires every two years

Electric wiring, connections

x x x x x x x x x x x x

Grease-up

x x x x x x x x x x x x

Fastening of steering wheel fix nut

x x x x x x

Important nuts and bolts

x x x x x x x

Cooling fan belt

x x x x x x x

Engine breather pipe

x x x x x x x x x x x x

Engine crank case

Clearance of exhaust valve

Fuel injection valve

Alternator, start motor

x x x x

Hydraulic system

x x x x

Fixing bolts of tires

x x x x x x x

Check at the first 50 operating hours or after first one-year operation.

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2. Oil and grease

Oil, Grease Type Fuel oil Diesel fuel only Engine oil API grade CD or better grade, 15W40 Transmission and Hydraulic system oil

Yanmar TF-500 T ransmission fluid or equivalent

Front axle Gear oil SAE #90 Grease Multipurpose grade

3. Capacity of oil and water (Unit: liters)

Fuel oil 38 Cooling Radiator 4.3 water Sub-tank 0.45 Engine oil 3.8 Transmission and hydraulic system oil

Front axle oil 5.5 Power steering oil Common uses of transmission oil

All capacities are approximate.

4. Equivalent oil to transmission fluid TF500

Supplier Brand name Mobil Mobil Fluid 425 Castrol Agricastrol MP John Deere J14A, J20B ESSO Torque Fluid 56 Shell Shell Tellus Oil 32 or 37 *Oil must not be mixed with other brand.

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5. Fuel system

5-1. Fuel and refill

Use diesel fuel only.

DANGER

1) Never smoke or use a bare lamp/light during filling fuel.

2) After filling fuel, be sure to put the fuel tank cap back firmly. Clean off spilled fuel.

3) Fill fuel after the engine stops and becomes cool. A fire may

result from heating.

IMPORTANT

1) Fill fuel tank at end of each day’s operation. This reduces

deposit of water in fuel tank.

2) Proper fuel storage is important. Keep all dirt, water, and

other contaminants out of fuel. Avoid from storing fuel for long time.

Turn the key switch to ON position to check fuel amount in the tank. Fuel gauge shows amount that fuel remained in the tank. Refill fuel as required.

(A) Fuel gauge

(A) Fuel tank cap

5-2. Drain and cleaning of water separator

Water separator remov es water in fuel. When water is deposited

in the bowl of the separator, drain it. (A) Water separator

(B) Fuel cock (C) Strainer (D) Drain cock (E) Retaining ring (a) Open (b) Close

(A) Water separator

(1) Turn the fuel cock to close position. (2) Loosen the drain cock on the bottom of the water separator

and drain water. Do not remove drain cock.

(3) If water is dirty, loosen retaining ring and remove the bowl.

Clean inside of bowl and strainer .

(4) Tighten drain cock or reinstall the removed bowl, strainer to

the original position.

(5) Open fuel cock and see water separator is filled up with fuel.

Crank engine for about 5 – 10 seconds to bleed the air from the fuel and start engine.

IMPORTANT The water separator strainer is not required to replace regularly unless it is damaged.

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5-3. Replacing fuel filter (cartridge type) Be sure to replace the fuel filter (cartridge type) regularly.

Replace

Every 300 hours

(1) Apply lubricating oil to the rubber rin g of fuel filter. (2) Install it surely.

IMPORTANT

Be sure to use a genuine filter.

The allowance of plunger and the barrel in fuel injection pump is very severe. If the filtering efficiency is low , it may cause a trouble in fuel injection pump, such hard starting.

(B) Fuel filter

5-4. Bleeding fuel lines of air

If the engine stops due to lack of fuel or if the fuel strainer element or fuel piping has ever been detached for maintenance purpose, bleed air by the following procedure:

(1) Fill up fuel tank if engine stop by short of fuel. (2) Turn the fuel cock to the "O" position (Open), and wait for

approximately ten seconds.

(3) See the bowl of water separator is filled with fuel and fuel

cock is open.

(4) Pull accelerator lever forward to the maximum speed

position.

(5) Turn the main switch in the start position and run the

starter motor for 5 - 10 seconds.

(6) If the engine did not start, run the starter motor again.

When the engine starts, air bleeding is finished.

IMPORTANT Never run the starter motor more than 10 seconds. It may cause breakage of starter motor. If you cannot start engine within 10 seconds, restart engine after 2-5 minutes.

(A) Water separator (B)Fuel cock

(A) Accelerator lever

(F) Increase speed (higher speed)

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6. Oil and filter

6-1. Engine oil and filter

DANGER Never refill or add oil while the engine is hot or running. A fire may occur or you may be burnt.

Check oil level Pull out the oil gauge (A) and wipe off oil with a clean cloth. Reinsert and remove it again to see if the oil level is within the upper and lower marks.

If insufficient, add oil to reach to specified level zone (c). Never add oil more than upper limit. It may cause more oil consumption and carbon deposit in combustion system.

IMPORTANT

1) Park the tractor on a level place, apply parking brake and

stop engine to check oil level. If the tractor is on an inclined place, oil level is not correct.

2) Check the oil level before engine starts or engine is cool.

Never check oil level immediately after engine stops. Wait for at least 20 minutes.

3) Never dispose of oil in rivers, field or place that

contaminates nature. Have the oil handled by professionals.

(A) Dipstick (B) Oil supply port

(A) Dipstick (a) Upper limit (b) Lower limit (c) Specified level zone

Replacing oil Remove drain plug on the bottom of engine crankcase. Refill new oil through the oil supply port. Select a proper type of engine oil and replace it periodically.

Capacity Type

3.8 lit. CD or better grade, 15W40 Replace

First 50hrs and every 100 hrs.

(D) Drain plug

Engine oil filter

Replace

First 50hrs and every 300 hrs or every 2-3 times

of replacing engine oil, which comes earlier.

Replacing engine oil filter (1) Drain engine oil. (2) Turn engine oil filter an ticlockwise with a filter wrench. (3) Apply a little engine oil on the rubber ring on the bottom

of the new filter and install it.

(4) Refill engine oil and run the engine until engine oil

pressure indicator lamp turns off.

(5) Stop engine and wait for about 20 minutes or more to

check the oil level. Add oil if necessary.

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6-2. Transmission-hydraulic oil and filter The transmission oil functions as lubricant of

transmission gears, brake discs and hydraulic system oil as well. The transmission oil quality and filter is very important to keep good condition of transmission and hydraulic system.

Check oil level

(1) Check oil level at oil level window on backside of

transmission. Adequate oil level is between a half of window and the lowest (L).

(2) If the oil is no seen in oil level window, replenish oil.

(A) Oil level window (B) Oil supply port

(L) Adequate oil level Replacing oil Remove drain plug and drain oil. When transmission is warm, draining oil is easier.

Oil Capacity

Capacity Replace

28 lit. First 50hrs and every 300 hrs.

Use Y anmar hydraulic-transmission fluid TF-500 or equivalent. Do not mix oil with other brand.

Equivalent oil

Supplier Brand name Mobil Mobil Fluid 425 Castrol Agricastrol MP John Deere J14A, J20B ESSO Torque Fluid 56 Shell Shell Tellus Oil 32 or 37

IMPORTANT When you install drain plug, pay attention not to break screw tread of transmission ca se. Transmission case is made of aluminum. Case itself has enough strength for normal works, but if you put a bolt improperly, screw tread is sometime broken easily. To install drain plug, screw the drain plug by hand first and when most of tread get in, tighten it by a wrench finally.

(A) Transmi s sion oil drain plug

Transmission oil filter (Line filter)

Replace

First 50 hours and every 300 hours.

Replacement (1) Remove drain plug to drain oil. (2) Turn transmission oil filter anticlockwise with a filter

wrench.

(3) Apply a little transmission oil on the rubber ring on

the bottom of the new filter and install it.

(4) Refill transmission oil and run the engine for a few

minutes

(5) Stop engine and wait for about 20 minutes or more

to check the oil level. Add oil if necessary.

(B) Transmission oil filter

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6-3. Front axle oil Check

Park the tractor on a level place. Hold yellow part of dipstick and turn it anti-clockwise to loosen screw. Pull out dipstick and wipe off oil. Insert dipstick without screwing, pull it out and check oil level. Oil level must be between upper and lower limit.

IMPORTANT Park the tractor on a level place, apply parking brake and stop engine to check oil level. If the tractor is on an inclined place, oil level is not correct.

(A) Dipstick

Replacing oil Drain plugs of front axle case are located on lower part

of front axle gear case, both right and left individually. Remove both drain plugs to drain oil.

Capacity Oil type Replace

5.5 lit. Gear oil SAE #90

First 50hrs and

every 300 hrs.

IMPORTANT As gear oil #90 is high viscous oil, it takes time to settle in the front axle case. Wait 1 hour after filling new oil and check oil level. Check the oil level again after operation of several hours.

(A) Drain plug, left side (B) Drain plug, right side

(A) Dipstick (a) Upper limit (b) Lower limit

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7. Engine coolant

DANGER Never open the radiator cap when the engine is hot. Hot steam and boiled water may blow out and you may suffer severe burns.

Check

Open the bonnet and check water level in the sub-tank whether water is between “FULL” and “LOW” marks. If water is insufficient, remove sub-tank cap and add clean water. Be sure to close the sub-tank cap firmly.

(A) Sub-tank (B) Sub-tank cap (C) Upper limit (FULL) (D) Lower limit (LOW)

(E) Radiator cap

Replacing coolant (1) Remove the coolant drain plug and drain cooling water.

It is easier for draining to open radiator cap.

(2) Clean the inside of radiator with tap water until dust or

rust does not come out. It is suggested to use radiator detergent. Fill radiator with water and detergent and run the engine in idle speed for more than 15 minutes. Drain the water.

(3) Fill radiator with clean water.

It is recommended to mix anticorrosive. Run the engine for about 5 minutes in idle speed to mix water and anticorrosive.

(A) Coolant drain plug (B) Hose clip

IMPORTANT The mixing ratio of anticorrosive varies depend on manufacturer. Follow the instruction of its manufacturer.

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8. Radiator screen

Radiator screen catches dust getting into radiator fins. If the screen is covered by dust, it causes engine over heat. Check the screen before every work.

Open the bonnet and check radiator screen. Pull up radiator screen along the screen hook angle and

clean it.

(A) Radiator screen (B) Air cleaner (C) Screen hook

9. Cleaning air cleaner element (dual element)

The air cleaner serves to keep the engine in favorable conditions by removing dust in air and preventing the cylinder liner and piston ring from premature wearing.

For operation in a dusty environment, clean the air cleaner element every 50 hours or earlier and replace it every 400 hours or earlier.

For operation in a normal condition, clean it every 100 hours and replace it every 1000 hours or every year.

(1) Open the cap and take out the outer element. Tap

dust out of the outer element. If much dust on the element, blow air from inside of the element. Be careful not to damage the fins.

(2) Return the outer element, close the cap as “TOP” mark

upward and clip firmly.

(A) Air cleaner (B) Cap

IMPORTANT

1) Do not take out the inner element. It avoid from getting

dust into the engine air intake part. It is not necessary to replace the inner element unless it is damaged or very dirty.

2) Never operate engine with inner element only. Inner

element cannot catch fine dust like as the outer element.

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10. Checking battery

CAUTION

1) Battery electrolyte evaporates and hydrogen gas

comes out. Hydrogen gas is flammable. Never smoke while handling battery. Keep all sparks and open flames away from battery. If hydrogen gas catches fire, battery will explode and cause serious injury.

2) Use flashlight to check battery electrolyte level.

Never use open flame.

3) Make sure to disconnect battery ground cable before

servicing any part of electrical system.

4) To remove battery, disconnect the ground (negative)

cable first and disconnect positive cable. To install battery, connect the positive cable first and connect ground (negative) cable.

WARNING Sulfuric acid in battery electrolyte is injurious and poisonous. It is strong enough to burn skin, eat holes in clothing, and cause blindness if it is splashed into eyes.

To avoid the hazards: (1) Filling battery in a well-ventilated area. (2) Wearing eye protection and rubber gloves. (3) Avoiding breathing fume s when electrolyte is added. (4) Avoiding spilling or dripping electrolyte.

If you spill acid on yourself: (1) Flush your skin with water. (2) Apply baking so da or lime to help neutralize the

acid.

(3) Flush your eyes with clean water for 10 - 15 minutes

and get medical attention immediately.

(4) If acid is swallowed, get medical attention

immediately.

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10-1. Check battery

Check whether the electrolyte level is between upper and lower limit lines. If the electrolyte level is close to the lower limit line, add purified (or distilled) water.

Adding water (1) Remove vent plugs. (2) Add purified wate r to the upper limit line. (3) Tighten vent plugs.

IMPORTANT Make sure the tractor is level when checking electrolyte level. Never add purified water over the upper limit line. Be sure to use purified water specified for battery.

(A) Negative (ground) terminal (B) Positive terminal (C) Upper limit line (D) Lower limit line (E) Fixing nut, 2 pieces (F) Vent plug, 6 pieces

WARNING It is recommended to replace battery promptly if under mentioned situation occurs.

- If the electrolyte level is kept below the lower limit line

while operating, it may accelerate deterioration of internal metals and decreasing of electrolyte. It may result explosion of battery.

- If the inner metal plates are exposed because of

decreasing electrolyte, addition of water cannot compensate and there is a risk of explosion.

10-2. Removing and installing battery

Remove

(1) Open the bonnet. (2) Disconnect the negative (ground) cable first from the

battery. (3) Disconnect the positive cable. (4) Loosen fixing nuts and remove the battery.

Installation

(1) Connect positive cable first. (2) Connect negative cable. (2) Tighten fixing nut.

(A) Negative (ground) cable (B) Positive cable (E) Fixing nuts

IMPORTANT

1) When connecting the battery cables, wipe oil away from

the terminal contacts. After connecting cables, apply

grease to the terminals.

2) Be sure to attach the rubber boots for the positive

terminal of the battery.

3) When replacing the battery, be sure to use the genuine

battery or equivalent specified in the right table

4) For environmental protection and recycle of resources,

return the old battery following the regulation of your

place.

Battery type

Specified battery Parts code No.

75D26R 1A7781-51500

Voltage 12 Volts Capacity 5HR 52 AH Charging rate 6.5 Amperes

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10-3. Charging battery

DANGER Never charge the battery with quick charger or fast charger. Internal pressure of the battery increases and the battery may explode. It may cause serious injury.

Charge the battery as following procedures. (1) Remove the battery. (2) Connect the battery positive cable to the positive side of

the charger, the battery negative cable to the negative side of the charger.

(3) Charge the battery at approximately 3 amperes for 8 to 10

hours. When the hydrometer color becomes green, charge is completed.

(4) Install the battery to the tractor.

11. Checking pipes and hoses

Check fuel pipes, hydraulic power steering pipes and radiator hoses for leak and loose connections. It is recommended to replace such parts every two years.

DANGER Aged or damaged pipes leak fuel or hydraulic oil and it may cause a fire. If a leak is found, replace the pipe with new one.

(A) Fuel pipe (B) Radiator hose

12. Checking electrical wires

Open the bonnet. Check damage, loose connection. Check them every 50 hours or have them periodically checked every year.

WARNING

1) A damaged electric wire causes short circuit and it

may cause a fire. Check before starting day’s work.

2) Clear dust, weeds or rice straws away wires and

connections before starting works. Those objects cause a short circuit and it may cause a fire.

(A) Electric wires

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13. Greasing

Before starting day's work, check the greasing condition at each point. Apply grease normally every 50 hours.

Apply grease after every day’s work when you work in wet paddy field.

(1) Tie rod end

Left Right

(2) Power steering rod

Right

(3) Center pin support

Front Rear

(4) Brake pedal shaft

Left Right

(5) Lift arm

Left & Right

(6) Levers fulcrum rotating part

(a) Main gear shift lever (b) Range gear shift lever (c) Front wheel drive lever (d) PTO gear shift lever

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14. Adjusting brake pedal

WARNING

1) Check free play of brake pedal before every work.

If brake is not work properly, accident may occur.

2) Unequal free play of left and right brake can cause

abrupt turn and it may cause injury. Keep the same amount of play. Otherwise, an accident can result.

Disconnect brake pedals if latched. Push down right and left brake pedals one by one and check free play of each pedal to be 25-35mm. Both pedals must have the same free play.

Adjustment

(1) Loosen lock nut of brake rod. Turn brake rod to

adjust pedal free play to 25-35 mm. The free play of one pedal must equal to the other.

(2) Make sure to tighten lock nut.

IMPORTANT Make sure parking brake can be applied firmly.

(A) Brake pedal

(A) Lock nut, Right (B) Brake rod, Right (C) Lock nut, Left (D) Brake rod, Left

15. Adjusting clutch pedal Push down the clutch pedal and check the free play.

The specified free play of clutch pedal is 15-25 mm.

IMPORTANT Do not rest foot on clutch pedal while operating. It may cause premature wearing of clutch disc.

(A) Clutch pedal

Adjustment

(1) Loosen lock nut. Turn the turnbuckle to adjust free

play to 15-25 mm.

(2) Tighten lock nut firmly.

IMPORTANT

1) When free play is less than 15 mm;

Engagement of engine flywheel and clutch disc is not enough and it will cause premature wearing of clutch disc.

2) When free play is more than 25 mm;

Disengagement of engine flywheel and clutch disc is not enough and it will cause noise when shifting gears. It also may cause damage on gears.

(A) Lock nut (B) Turnbuckle (C) Clutch rod

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16. Checking steering wheel

WARNING Check free play of steering wheel. The normal free play is 20-50 mm.

This tractor is equipped with hydrostatic power steering and it causes less wearing of steering system. When free play is more than normal, check wearing of tie rod ends. The wearing of tie rod end causes more free play on steering wheel.

(A) Steering wheel free play. Measure the free play on wheel circle.

(A) Tie rod (B),(C) Tie rod end

17. Adjusting fan belt

CAUTION Stop the engine and wait until the engine is sufficiently cooled down. Otherwise, you may be burned.

Check

Press the fan belt with a finger at the midpoint and see the belt deflections. The specified deflection is 10 -15 mm.

Adjustment

(1)

Open the bonnet.

(2) Loosen alternator bolt, belt adjuster bolt, and

alternator nut.

(3) Move alternator to stretch the belt tight. Tighten

alternator bolt and see deflection. If the deflection is 10 - 15 mm, tighten alternator bolt, alternator nut and belt adjuster bolt.

IMPORTANT When tractor is new, fan belt stretched in a short time. Check belt deflection frequently.

(A) Fan belt (B) Alternator bolt. (C) Alternator

(B) Alternator bolt (C) Alternator (D) Belt adjuster (E) Belt adjuster bolt (F) Alternator nut

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18. Checking and adjusting toe-in

When a tractor runs, front wheels intend to go outward due to camber angle. The toe-in gives a counter force against outward force to run straight. If the toe-in is not adjusted appropriately, steering may not be stable.

Check

(1) Put front wheel to be straight. (2) Measure the distance between the center of right tire

and left tire in front side (b).

(3) Measure the distance between the center of right tire

and left tire in rear side (a).

(4) See the difference. The amount of (a) must be bigger than (b).

Specified toe-in: a - b = 1 - 8 mm

F: Forward R: Rearward a: distance between the center of tires, rear b: distance between the center of tires, front

Adjustment

(1) Lift up front wheel slightly. It is not necessary that

front tires are floating. (2) Loosen the lock nuts, left and right. (3) Turn tie rod to adjust the front wheel tread and

measure front side and rear side of wheel tread. (4) When the toe-in is specified amount, tighten the lock

nuts.

(A) Tie rod (D) Lock nut, right and left

19. Replacing fuse 19-1. Fuse box

The fuse box is located at right side of dashboard nearby clutch rod. Check fuses and replace the blown fuse with new one if any.

CAUTION Be sure to use a fuse of specified capacity. If a bigger capacity fuse is replaced, it may burn electric wire and cause a fire. Never use electric wire or iron wire etc. as a fuse.

(A) Fuse box

No.

Written on label

Fuse Related parts

(1)

STOP SOLENID

5 A Fuel cut solenoid

(2)

REVERSER

5 A Reverser neutral switch

(3)

HEAD LAMP

15 A Head lamp

(4)

METER

5 A Meter lamps, gauges

(5)

WORK LAMP

10 A Work lamp

(6)

FLASHER

5 A Turn signal lamp

(7)

HORN

5 A Horn

(8)

START

5 A PTO neutral switch

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19-2. Slow blow fuse

Slow blow fuses are located on left side of the engine. The slow blow fuse protects main electric circuit that requires heavy current.

CAUTION

Be sure to use a genuine slow blow fuse. Never use electric wire or iron wire etc. as a fuse. It may cause a fire.

(A) Slow blow fuse

There are 2 slow blow fuses.

1) Alternator circuit 65A

2) Main circuit 65A

NOTE: The main slow blow fuse may sometimes be placed above the alternator slow blow fuse.

20. Checking tire and wheel

Check dairy damages, wear and air inflation of tires. Check dairy looseness of tire hub bolts and nuts. Check dairy crack and bent of wheel and rim.

WARNING Never operate the tractor when a tire hub bolt or nut is loosened. It may cause injury if a tire is taken off while operating.

(A): Excessive (B): Standard (C): Insufficient

Checking tires

Adjust the inflation pressures of the front and rear tires to the standard pressure. Also check for any crack or faults on the tires.

Standard inflation pressure of tire

Tire size (ply)

Pressure

kg/cm2 (kPa)

Front 8-16 (4) 1.6 (157) Rear 12.4-24 (6) 1.6 (157)

Hub bolt and nut tightening torque

Tighten hub bolts and nuts with specified tightening torque. A rear wheel is fixed with 4 bolts and 2 nuts.

IMPORTANT Do not tighten more than specified torque. It may break screw tread and fixing would be insufficient. When a hub bolt or nut loosen frequently, check screw tread and replace if necessary.

Tightening

torque

Front wheel

118 to 147Nm

(12 to 15kgf-m)

Rear wheel

177 to 196Nm

(18 to 20kgf-m)

21. Color of exhaust gas

The color of exhaust gas is black just after engine starts and it is gray or no color during operation.

Black: Incomplete combustion due to dense fuel. White: Engine oil is burning. Normal exhaust may look white at extremely

low temperature.

If exhaust gas is black or white without a load on the tractor, consult with your service dealer.

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TROUBLESHOOTING

If abnormal operations are found, stop the engine and found a problem by referring to the following table.

1. Engine

PROBLEM CAUSE REMEDY

Engine hard to start or not start

Starter motor runs.

No fuel or improper fuel

Fill fuel.

Drain wrong fuel and fill proper fuel. Water, dirt, or air in fuel system Drain, flush & bleed fuel system. Clogged fuel filter Clean or replace fuel filter. Fuel shut-off valve closed Open fuel shut-off valve. Accelerator lever not pulled Pull throttle lever. Engine oil too heavy Use oil of proper viscosity.

Starter motor doesn’t run.

Reverser lever is not set to “N”. Set the lever to neutral. PTO shift lever is not set to “N”. Set the lever to neutral. Low voltage Charge battery. Slow blow fuse blown Replace slow blow fuse.

Engine runs irregularly or stalls frequently

Vent in fuel tank cap clogged Clean cap in solvent and blow dry. Fuel filter clogged Clean or replace fuel filter. Water, dirt, or air in fuel system Drain, flush & bleed fuel system. Dirty or faulty injection nozzles See your YANMAR dealer. Improper type of fuel Use proper fuel. Engine solenoid linkage out of

adjustment

See your YANMAR dealer. Insufficient oil Add oil

Engine knocks

Engine overheating See "Engine overheats". Idle speed too slow Check idle speed. Improper type of fuel Use proper fuel.

Lack of engine power

Engine overloaded Reduce load or shift to lower gear. Air cleaner element clogged Clean air cleaner ele m ent. Clogged fuel filter Clean or replace fuel filter. Improper type of fuel Use proper fuel. Engine overheating See "Engine overheats". Improper ballast Adjust ballast to load. Hydraulic stop valve closed Open stop valve.

Improper implement mounted

Check required horsepower for

implement.

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1. Engine (continued)

PROBLEM CAUSE REMEDY

Engine overheats

Engine overloaded Reduce load or shift to lower gear. Low coolant level

Fill coolant and check cooling system for

loose connections or leak. Loose or defective fan belt Adjust fan belt and replace if needed Radiator screen or fins clogged Clean radiator screen or fins. Cooling system needs flushing Flush cooling system. Defective thermostat Remove and check thermostat. Defective temperature gauge or

sender

See your YANMAR dealer.

High oil consumption

Oil viscosity is too light Use proper viscosity oil. Oil leaks

Check for leaks in lines, seals, drain plug

and around gaskets.

Engine emits white smoke

Improper type of fuel Use proper fuel. Low engine temperature

Warm up engine to normal operating

temperature.

Engine emits black or gray smoke

Improper type of fuel Use proper fuel. Engine overloaded Reduce load or shift to lower gear. Air cleaner clogged Clean or replace air cleaner element.

High fuel consumption

Improper type of fuel Use proper fuel. Engine overloaded Reduce load or shift to lower gear. Air cleaner clogged Clean or replace air cleaner and element. Crankcase breather clogged Clean breather pipe.

Radiator screen or fins clogged Clean radiator screen or fins. Improper implement mounted

Check required horsepower for

implement. Tire pressure too low. Inflate tires to proper pressure. Clutch slipping. Adjust clutch free travel or replace disk.

Unusual noise Defective component parts See your YANMAR dealer.

2. Electrical system PROBLEM CAUSE REMEDY

Battery not charged

Loose or corroded connections Clean and tighten connections. Battery service life is ending

Check electrolyte level and specific

gravity and replace if necessary. Loose or defective fan belt Adjust belt tension or replace belt. Excessive engine idling Allow engine to idle when necessary.

Charging indicator lamp lights during operation

Low engine speed Increase speed. Defective battery

Check electrolyte level and specific

gravity and replace if necessary. Loose or defective fan belt Adjust belt tension or replace belt.

Engine oil pressure indicator lamp lights

Low oil Add oil.

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3. Hydraulic system PROBLEM CAUSE REMEDY

Implement not raises

Low oil level Fill system with proper oil. Hydraulic stop valve closed Open stop valve. Excessive load on hitch Reduce load. Hydraulic oil too cold Allow oil to warm up. Hydraulic oil filter clogged Replace filter. Defective hydraulic pump or control

valve

See your YANMAR dealer.

Oil leaks Check oil leaks.

Hitch drops slowly or does not drop

Hydraulic stop valve closed Open stop valve. Slow return valve set slow Open valve and adjust drop speed.

System drops too fast

Slow return valve set fast Close valve and adjust drop speed. Improper oil Use oil with proper viscosity.

System overheating

Incorrect oil viscosity Drain and fill oil with proper viscosity. Low oil level Fill to proper oil level. Dirty oil Drain and fill clean oil. Keeping steering wheel at the end Release steering wheel. Control lever not returned to neutral

position when using implement

Return lever to neutral position.

4. Power train PROBLEM CAUSE REMEDY

Abnormal noise

Transmission oil level low Add proper type of oil. Worn or broken gears/bearings See your YANMAR d ealer.

Tractor is pulled to one side

Brakes adjusted unevenly Adjust brake pedal free travel. Right and left tires inflated unevenly Inflate tires to proper pressure. Implement improperly adjusted See implement operator's manual

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SPECIFICATIONS

Model

EF393T

Engine

Make Yanmar Model 3TNV88 Type Direct injection, Water cooled, diesel Output SAE Gross (ps) 39.0 Rated RPM (rpm) 2800 No. of cylinders 3 Displacement (cc) 1,642 cc Fuel tank (lit.) 38

Dimension

Overall length (mm) 2940 Overall width (mm) 1430 Overall height (steering wheel) (mm) 1950 (1400)

Tread

Front (mm) 1065

Rear (mm) 1120 Wheelbase (mm) 1650 Ground clearance (mm) 320

Weight (kg) 1090 Tire size

Front 8 - 16

Rear 12.4 - 24

Steering Hydrostatic power steering Brake Wet multi-disc type Clutch Dry single

Transmission

No. of shifting gears 8 forward and 8 reverse (constant mesh) Reverser Synchro-mesh

Travel speed

Forward (km/hr) 1.90 – 21.1

Reverse (km/hr) 1.84 – 21.9

Turning radius (with brake) (m) 2.4 PTO

Gear 1 584 rpm (at engine speed: 2800rpm) Gear 2 836 rpm (at engine speed: 2800rpm)

Hydraulic system

Type Position control Hitch 3-point hitch Category Category 1 Max. lifting capacity (at lower link end) (kg) 925 Hydraulic pump capacity (lit./min) 20.2

Note: All technical data, measurement and weight are approximate, and the manufacturer has the right to make alteration without prior notice.

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IMPLEMENT CAPACITIES

The Y an mar tracto r has been ca refully tested in the configuration e quipped with im plements sold or approv ed by Yanmar and has proved to perform property. Do not use any implement that has not been sold or recommended by Yanmar, or that fails to satisfy the specified values given below. Using with implements that are not approved by Yanmar could result in malfunction, failure, and damage to the tractor and/or implement, and increase the possibility of injury to the operator or other people. The Yanmar warranty does not cover any malfunction or failure that results from use of an unapproved implement.

Lower link end

maximum lifting

capacity

Implement weight

and size

Maximum drawbar

load

Trailer loading weight

maximum capacity

W0 W1 W2 W3

kg 925

As specified in the

implement capacity

list

330 1,500

Implement capacity list

Implement Description Unit Maximum Amount

Rotary

Tilling Width m 1.7 Weight kg 310

Disc plough

Disc Size(inch) & Total disc Inch x disc 22X4 Weight kg 300

Poly disc plough

Disc Size(inch) & Total disc Inch x disc 22X6 Weight kg 350

Front blade

Width m 1.7 Weight kg 290

Trailer

Load Capacity kg 1,500 Drawbar Load kg 330

Front weight Weight kg 90

Yanmar EF393T Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual