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Yanmar EF393T Operator's Manual

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OPERATOR'S MANUAL
DIESEL TRACTOR
EF393T
en
Original instructions

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Summary of Contents for Yanmar EF393T

  • Page 1 OPERATOR’S MANUAL DIESEL TRACTOR EF393T Original instructions...
  • Page 2 OPERATOR’S MANUAL DIESEL TRACTOR EF393T 0A041-ENXXXX Oct. 2014 http://yanmar.com Original instructions...
  • Page 3 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. EF393T OM...

  • Page 4: To The Owner

    Please read this manual carefully before using the tractor. Keep this manual close to your tractor, after you have read through 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.

  • Page 5: Table Of Contents

    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 OPENING BONNET AFTER OPERATION EF393T OM...
  • Page 6 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 TROUBLESHOOTING SPECIFICATIONS IMPLEMENT CAPACITIES EF393T OM...

  • Page 7: Safety Instructions

    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. EF393T OM...
  • Page 8 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. EF393T OM...
  • Page 9 (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. That the tractor’s PTO speed matches the implement’s specifications. EF393T OM...
  • Page 10 (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. EF393T OM...

  • Page 11: During Operation

    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. EF393T OM...
  • Page 12 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. EF393T OM...
  • Page 13 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 back out. EF393T OM...
  • Page 14 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. EF393T OM...
  • Page 15 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. EF393T OM...
  • Page 16 (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. EF393T OM...

  • Page 17: Maintenance And Service

    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. EF393T OM...
  • Page 18 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.
  • Page 19 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! EF393T OM...
  • Page 20  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. EF393T OM...

  • Page 21: After Sales Services

    However, special parts will be subject to consultation. Yanmar may be able to supply a particular part after the normal supplying period. (C) Engine model name & serial number...
  • Page 22 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. EF393T OM...

  • Page 23: Tractor Outline

    TRACTOR OUTLINE Head light Lower link Turn signal lamp Top link Tail lamp (10) Fender, R Fuel refill port (11) Fender, L Operator’s seat (12) Front tire Sub-step (13) Rear tire Bonnet (14) ROPS (Safety frame) EF393T OM...

  • Page 24: Parts Names

    (4) Combination switch (10) Brake pedal (16) Stop & slow return valve Head light, turn signal, horn (11) Foot accelerator pedal (17) Front wheel drive lever (5) Reverser lever (12) Main gear shift lever (18) Seat belt (6) Clutch pedal EF393T OM...

  • Page 25: 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 (2) 198163-65930 (3) 1A8310-65310 Label, fire caution Label, caution muffler Label, caution (4)198283-65651 (6) 1A7874-65360 (13) 1A8310-65300 Label, Thailand only Label, brake coupling Label, warning escape EF393T OM...
  • Page 26 (7) 198163-65930 (8) 198163-65940 (9) 1A6150-93151 Label, caution muffler Label, safety cover Label, PTO shaft cover (10) 198163-65350 (11) 198163-65950 (12) Label, danger shaft rotate Label, seat belt EF393T OM...

  • Page 27: Controls

    (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 EF393T OM...
  • Page 28 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. EF393T OM...
  • Page 29 (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. EF393T OM...
  • Page 30 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. EF393T OM...
  • Page 31 Do not operate the hydraulic control lever when the valve is fully closed. Otherwise, it may damage hydraulic parts. EF393T OM...
  • Page 32 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. (C) Horn button EF393T OM...
  • Page 33 This lamp lights when the key switch is in “ON” position and goes off 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. EF393T OM...
  • Page 34 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 EF393T OM...

  • Page 35: Operations

    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. EF393T OM...
  • Page 36 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. EF393T OM...
  • Page 37 Brake pedals must have reasonable play (A) Clutch pedal must have reasonable play (A). and plays of both right and left brake pedals (15-25mm) must be equal. (25-35mm) • Play of steering wheel. Steering wheel must have reasonable play (A). (20-50mm) EF393T OM...
  • Page 38 • 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 EF393T OM...

  • Page 39: Break-In (Initial 50 Hours)

    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. EF393T OM...

  • Page 40: Start And Stop

    (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) Accelerator lever EF393T OM...

  • Page 41: Start, Gear Shifting And Stop Tractor

    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 (A) Reverser lever (N) Neutral the tractor. (F) Forward (R) Reverse 3) Look around the tractor before starting. EF393T OM...
  • Page 42 (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 (A) Parking brake lever (B) Brake pedals key. (C) Connector (L) Lock (R) Release EF393T OM...

  • Page 43: Driving On A Road

    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. EF393T OM...

  • Page 44: Driving On A Slope

    Select adequate speed for works. Suggested operation by working speed. Main Range Speed Shift Operation shift shift (km/hr) 1.90 2.74 Rotary 3.92 5.91 Spreader 6.79 Plow 9.79 14.0 Traveling with the trailer 21.1 (At engine speed: 2800rpm) EF393T OM...

  • Page 45: Turning In A Field

    (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. EF393T OM...

  • Page 46: Loading And Unloading

    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. EF393T OM...

  • Page 47: Wheel Tread

     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. EF393T OM...

  • Page 48: Hydraulic Power Take Off

    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 EF393T OM...
  • Page 49 (2) For implements such as a rotary tiller and mower, adjust check chains so that an implement can move (C) Check chain 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. EF393T OM...

  • Page 50: Drawbar Hitch

    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. EF393T OM...

  • Page 51: Power Steering

    Tighten torques show on right table. 44 - 59 4.5 - 6.0 78 - 98 8.0 - 10.0 118 - 147 12.0 - 15.0 167 - 206 17.0 - 21.0 235 - 284 24.0 - 29.0 323 - 402 33.0 - 41.0 EF393T OM...

  • Page 52: Opening Bonnet

    (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 EF393T OM...

  • Page 53: After Operation

    (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 EF393T OM...
  • Page 54 (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) EF393T OM...

  • Page 55: Periodical Service

    Cooling fan belt Engine breather pipe Engine crank case Clearance of exhaust valve Fuel injection valve Alternator, start motor Hydraulic system Fixing bolts of tires Check at the first 50 operating hours or after first one-year operation. EF393T OM...

  • Page 56: Oil And Grease

    Type Fuel oil Diesel fuel only Engine oil API grade CD or better grade, 15W40 Transmission and Yanmar TF-500 Transmission fluid or equivalent Hydraulic system oil Front axle Gear oil SAE #90 Grease Multipurpose grade 3. Capacity of oil and water...

  • Page 57: Fuel System

    (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. EF393T OM...

  • Page 58: Replacing Fuel Filter (Cartridge Type)

    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) Accelerator lever (F) Increase speed (higher speed) EF393T OM...

  • Page 59: Oil And Filter

    (4) Refill engine oil and run the engine until engine oil pressure indicator lamp turns off. (C) Engine oil filter (5) Stop engine and wait for about 20 minutes or more to check the oil level. Add oil if necessary. EF393T OM...

  • Page 60: Transmission-Hydraulic Oil And Filter

    Oil Capacity Capacity Replace 28 lit. First 50hrs and every 300 hrs. Use Yanmar hydraulic-transmission fluid TF-500 or equivalent. Do not mix oil with other brand. Equivalent oil Supplier Brand name (A) Transmission oil drain plug...

  • Page 61: Front Axle Oil

    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. EF393T OM...

  • Page 62: Engine Coolant

    It is recommended to mix anticorrosive. Run the (A) Coolant drain plug engine for about 5 minutes in idle speed to mix water (B) Hose clip and anticorrosive. IMPORTANT The mixing ratio of anticorrosive varies depend on manufacturer. Follow the instruction of its manufacturer. EF393T OM...

  • Page 63: Radiator Screen

    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 (C) Outer element element. (D) Inner element EF393T OM...

  • Page 64: Checking Battery

    (1) Flush your skin with water. (2) Apply baking soda 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. EF393T OM...

  • Page 65: Check Battery

    3) When replacing the battery, be sure to use the genuine Voltage 12 Volts battery or equivalent specified in the right table Capacity 5HR 52 AH 4) For environmental protection and recycle of resources, Charging rate 6.5 Amperes return the old battery following the regulation of your place. EF393T OM...

  • Page 66: Charging Battery

    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 EF393T OM...

  • Page 67: Greasing

    Right (4) Brake pedal shaft (5) Lift arm Left Right 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 EF393T OM...

  • Page 68: Adjusting Brake Pedal

    2) When free play is more than 25 mm; Disengagement of engine flywheel and clutch disc is (A) Lock nut (B) Turnbuckle not enough and it will cause noise when shifting (C) Clutch rod gears. It also may cause damage on gears. EF393T OM...

  • Page 69: Checking Steering Wheel

    10 - 15 mm, tighten alternator bolt, alternator nut and belt adjuster bolt. IMPORTANT When tractor is new, fan belt stretched in a short time. (B) Alternator bolt (C) Alternator Check belt deflection frequently. (D) Belt adjuster (E) Belt adjuster bolt (F) Alternator nut EF393T OM...

  • Page 70: Checking And Adjusting Toe-In

    Fuse Related parts STOP SOLENID Fuel cut solenoid Reverser neutral switch REVERSER 15 A Head lamp HEAD LAMP Meter lamps, gauges METER WORK LAMP 10 A Work lamp FLASHER Turn signal lamp Horn HORN PTO neutral switch START EF393T OM...

  • Page 71: Slow Blow Fuse

    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. EF393T OM...

  • Page 72: Troubleshooting

    Water, dirt, or air in fuel system Drain, flush & bleed fuel system. Engine runs irregularly or Dirty or faulty injection nozzles See your YANMAR dealer. stalls frequently Improper type of fuel Use proper fuel. Engine solenoid linkage out of See your YANMAR dealer.
  • Page 73 Cooling system needs flushing Flush cooling system. Defective thermostat Remove and check thermostat. Defective temperature gauge or See your YANMAR dealer. sender Oil viscosity is too light Use proper viscosity oil. High oil consumption Check for leaks in lines, seals, drain plug Oil leaks and around gaskets.
  • Page 74 Hydraulic oil too cold Allow oil to warm up. Implement not raises Hydraulic oil filter clogged Replace filter. Defective hydraulic pump or control See your YANMAR dealer. valve Oil leaks Check oil leaks. Hydraulic stop valve closed Open stop valve.

  • Page 75: Specifications

    Category Category 1 system Max. lifting capacity (at lower link end) (kg) 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. EF393T OM...

  • Page 76: Implement Capacities

    The Yanmar tractor has been carefully tested in the configuration equipped with implements sold or approved 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.

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