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Yanmar Lx410 Operator's Manual
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Yanmar Lx410 Operator's Manual

Yanmar Lx410 Operator's Manual

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OPERATOR'S MANUAL
COMPACT TRACTOR
Lx
Series
Lx410
Lx450
Lx490
Version 1.0
Code No.:0A042-U00400
ENGLISH
Yanmar America Corporation
101 International Pkwy
Adairsville, GA 30103
PRINTED IN U.S.A.

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Summary of Contents for Yanmar Lx410

  • Page 1 OPERATOR'S MANUAL COMPACT TRACTOR Series Lx410 Lx450 Lx490 Version 1.0 Code No.:0A042-U00400 ENGLISH Yanmar America Corporation 101 International Pkwy Adairsville, GA 30103 PRINTED IN U.S.A.
  • Page 2 Laws or Regulations Relating to Fire Prevention Requirements. 1A8250-65390 NOTE IMPORTANT ●The following decal is applicable only for Lx410 and Pursuant to California Public Resources Lx450. Code Section 4442.6 WARNING - Operation f This Equipment May Create Sparks That Can Start Fires Around Dry Vegetation.
  • Page 3 INTRODUCTION Welcome to the World of Yanmar Tractor Thank you for purchasing Yanmar tractor product that has been designed and manufactured based on the Yanmar state-of-the-art technology and rich expertise in developing and manufacturing products. Handle the tractor correctly by following the instructions in the Operator's Manual so that the tractor will provide long years of reliable and predictable service.
  • Page 4 Revolutions Per Minute (rpm) Slow Power Take Off (PTO) Fast Parking brake Position control raised position <Lights> Position control lowered position Turn signal Hydraulic flow control/stop Headlight high Tilt pedal lock/unlock Headlight low Parking brake lock/unlock Hazard warning lights Lx410/450/490 Operator's Manual...

  • Page 5: Table Of Contents

    Function of Components ............................5-4 3. Instrument Panel ........................5-13 6. PRE-OPERATION CHECK ................. 6-1 1. Pre-Operation Check....................... 6-1 2. Precautions Before Operation ....................6-1 3. Routine Checks ........................6-1 4. Prevent Damage to Plastic Surfaces and Painted Surfaces ........... 6-1 Lx410/450/490 Operator's Manual...
  • Page 6 Push or Tow the Tractor ............................8-15 Allowable Loads When Towing with the Tractor....................8-16 Transport the Tractor on a Trailer........................8-17 Operate on Slopes and Rough Terrain........................8-17 Uphill and Downhill Slopes ..........................8-18 Steep Downhill Slope ............................8-18 About the Power Steering............................8-19 Lx410/450/490 Operator's Manual...
  • Page 7 Select the Appropriate Amount of Front Weight ....................12-6 Front Weights (option) ............................12-6 Select the Appropriate Amount of Rear Weight....................12-6 Use the Optional Rear Wheel Weights ........................12-7 Use the Optional Rear Ballast ..........................12-7 Use Liquid Weight for the Tires ...........................12-7 Lx410/450/490 Operator's Manual...
  • Page 8 Grease Fittings ..............................14-17 Service the Alternator/fan Belt ...........................14-19 Check the Fuel/Water Separator ........................14-20 Check the Battery Condition ..........................14-21 6. Every 100 Hours........................14-21 Service the Air Cleaner Element ........................14-21 Clean the Fuel/Water Separator and Replace the Fuel Filter................14-23 Lx410/450/490 Operator's Manual...
  • Page 9 Adjust the Headlights............................15-8 16.STORAGE......................16-1 1. Safe Practices for Storage ....................16-1 1. Prepare the Tractor for Storage ...........................16-1 2. Prepare the Fuel and Engine for Storage ......................16-1 Fuel..................................16-1 Engine .................................16-2 2. Prepare the Stored Tractor for Operation................16-2 Lx410/450/490 Operator's Manual...
  • Page 10 TABLE OF CONTENTS 17.TROUBLESHOOTING ..................17-1 1. How to Use the Troubleshooting Table ................. 17-1 1. Engine .................................17-1 2. Electrical System ..............................17-8 3. Brakes ................................17-10 4. Steering ................................17-10 5. Body and Machinery ............................17-11 18.INDEX........................ 18-1 Lx410/450/490 Operator's Manual...

  • Page 11: Safety Precautions

    Manual so that the operator can avoid personal injury or property damage. NOTE ● Unless otherwise stated, the expressions right hand side, left hand side, front side and rear side, used throughout the Operator’s Manual are relative to the operator’s position. LEFT FRONT 450_000_Lxa Lx410/450/490 Operator's Manual...

  • Page 12: Safety Alert Symbol

    Operator’s Manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. To help prevent accidents, read and take the following precautions before operating the tractor. Failure to observe the following safety instructions could result in serious injury or death. Lx410/450/490 Operator's Manual...

  • Page 13: Precautions Before Operating The Tractor

    1. Understand the performance and limitations of Protective Structure (ROPS). Contact YOUR the tractor. Carefully study the Operator’s Manual LOCAL YANMAR TRACTOR DEALER for and learn the instructions in the Operator's technical assistance. Manual before operating or servicing the tractor.

  • Page 14: Safe Practices For Operating The Tractor

    • Do not under any circumstances operate the requirements in the Operator's Manual or are tractor with bare feet. approved by your Yanmar tractor dealer. (For • Do not wear sandals or sneakers. details, see "Chapter 4. IMPLEMENT • Wear additional protection including non-slip CAPACITIES"...

  • Page 15: Work With The Tractor

    7. Before operation, check that all the safety completely stopped. features are functioning correctly. Never tamper with safety devices. Check the proper operation regularly. Contact YOUR LOCAL YANMAR 3. Stop the Tractor TRACTOR DEALER for safety devices malfunction. The procedures of stopping the tractor are as 8.

  • Page 16: Operate The Tractor On Slopes

    ● Avoid depressing the clutch pedal when the tractor upsetting backward is high. Always operating on a slope. move backward to get out from these situations. In the 4-wheel drive mode, special caution is needed Lx410/450/490 Operator's Manual...

  • Page 17: Travel On A Road

    "6. Lock and Set the Parking Brake" on page implement to the ground and chock all the tires 7-4, shut off the engine and remove the key. safely and securely. 2. Before leaving the tractor, ensure that the tractor is completely stopped. Lx410/450/490 Operator's Manual...

  • Page 18: Operate The Power Take Off (Pto)

    1. Always keep the Roll-Over Protective Structure (ROPS) on its original condition. 2. Replace the Roll-Over Protective Structure (ROPS) whenever the Roll-Over Protective Structure (ROPS) has been damaged. The preceding action can weaken the structure and endanger the safety of the operator. Lx410/450/490 Operator's Manual...

  • Page 19: Safe Practices For Servicing The Tractor

    15. Keep the tractor securely supported while changing the wheels or adjusting the tire tread width. Make sure to tighten the wheel bolts to the specified tightening torque. Lx410/450/490 Operator's Manual...
  • Page 20 Agency regulations when disposing of oil, fuel, coolant, brake fluids, filters, batteries, tires and other harmful waste. 23. Yanmar does not recommend the use of a pressure washer or garden hose to clean the tractor. Electrical components, spindles, pulleys, bearings or the engine can be damaged. The use of water will result in shortened life and reduce 18.

  • Page 21: Understand The Tractor Safety Decals

    3. Replace damaged or missing DANGER, WARNING and CAUTION decals with new decals available from YOUR LOCAL YANMAR TRACTOR DEALER. 4. If a component having a DANGER, WARNING and CAUTION decals is replaced with a new decal, ensure that the new decal is on the same location as of the old component.
  • Page 22 ● NEVER operate without seatbelt fastened. ● NEVER jump if machine tips. ● NEVER remove, repair or modify ROPS. ● ALWAYS replace a damaged ROPS. ● Failure to comply could result in death or serious injury. 450_001_ROPS 1-12 Lx410/450/490 Operator's Manual...
  • Page 23 (C) 1A8250-65300 ! DANGER TO AVOID INJURY OR DEATH: ● Do not start engine by shorting across starter terminals or bypassing safety start switch. ● Start engine only from seat with transmission and PTO OFF. 450_002_Fender 1-13 Lx410/450/490 Operator's Manual...
  • Page 24 THERE IS NO OPERATOR PROTECTION WHEN THE ROPS IS IN THE FOLDED POSITION. ● Fold the ROPS only when absolutely 450_003_ROPS2 necessary. When the structure must be down: • Do not use seat belt. • Drive with extra care. 1-14 Lx410/450/490 Operator's Manual...
  • Page 25 STAY CLEAR OF ENGINE FAN AND FAN BELT 1A7880-65620 (G) 198220-65621 ! WARNING AVOID INJURY FROM PTO: ● Keep all shields in place. ● Keep hands, feet and clothing away. ● Operate only with 540 RPM. 450140205_P14-4_tofc_d2 1-15 Lx410/450/490 Operator's Manual...
  • Page 26 1. SAFETY PRECAUTIONS (H) 1A8160-51520 (For Lx410/450) ! DANGER ● SHIELD EYES. EXPLOSIVE GASES CAN CAUSE BLINDNESS OR INJURY. ● NO SPARKS, FLAMES, SMOKING. ● SULFURIC ACID CAN CAUSE BLINDNESS OR SEVERE BURNS. ● FLUSH EYES IMMEDIATELY WITH WATER. GET MEDICAL HELP FAST.

  • Page 27: Service The Tractor

    2. SERVICE THE TRACTOR 2. SERVICE THE TRACTOR Your Yanmar tractor dealer is committed to provide reliable and quality services to the tractor. Through the preceding services, the full performance potential of the tractor can be realized. After carefully studying the contents of the Operator's Manual, the tractor owner/operator can perform certain regular maintenance work.
  • Page 28 Engine Roll-Over Protective Structure (ROPS) Date of Purchase Name of Dealer (A) Tractor identification plate with tractor serial number (B) Engine serial number 450_007_ROPS (C) Roll-Over Protective Structure (ROPS) model (D) Roll-Over Protective Structure (ROPS) serial number Lx410/450/490 Operator's Manual...

  • Page 29: Specifications

    Min. Ground Clearance in. (mm) 15.5 (393) (with R4 Tires) Front in. (mm) 51.7 (1314) Tread (with R4) Rear in. (mm) 51.9 (1319) Weight (with Roll-Over Protective lb. (kg) 3585 (1626) 3618 (1641) Structure (ROPS) and R4 Tires) Lx410/450/490 Operator's Manual...
  • Page 30 Max. Lift 24 in. Behind Force lb. (kg) 2756 (1250) Lift Point System Pressure psi (MPa) 2429 (16.7) Type Independent Shaft size 35 mm OD, 6 Splines. Power Take Off (PTO) 563/2700 563/2700 542/2600 Speed/Engine 540/2592 540/2592 540/2592 Lx410/450/490 Operator's Manual...

  • Page 31: Traveling Speeds

    1.553 1.342 2.160 1.716 2.761 2.248 3.618 2.382 3.832 3.312 5.330 4.235 6.814 5.549 8.928 7.098 11.420 9.871 15.882 12.621 20.307 16.535 26.605 NOTE ●The traveling speeds listed above are for when the tire size is R1. Lx410/450/490 Operator's Manual...
  • Page 32 1.495 1.292 2.080 1.653 2.659 2.165 3.484 2.294 3.690 3.190 5.132 4.078 6.562 5.343 8.597 6.835 10.997 9.505 15.293 12.153 19.555 15.923 25.620 NOTE ●The traveling speeds listed above are for when the tire size is R1. Lx410/450/490 Operator's Manual...

  • Page 33: Implement Capacities

    ●Using unapproved implements can result in malfunction, failure and damage to the tractor. ●The preceding action can also increase the possibility of injury to the operator or other people. The Yanmar warranty does not cover any malfunction or failure that results from the use of an unapproved implement.
  • Page 34 Lift Capacity (at Pivot) lb. (kg) 2493 (1133) Loader Overhang (Pivot ~ Front Tire Center) in. (mm) 46.3 (1176) Weight (without Bucket) lb. (kg) 828 (375) Digging Depth ft. (mm) 8.5 (2550) Backhoe Weight lb. (kg) 1650 (748) Lx410/450/490 Operator's Manual...

  • Page 35: Names And Functions Of Components

    (7) Rear tires (18) Adjustment box (8) Tail lights (19) Drawbar (9) Turn signal/hazard lights (20) Lift link left (10) Fuel filler cap (21) Operator seat back pocket (11) Slow Moving Vehicle (SMV) emblem (22) Operator seat Lx410/450/490 Operator's Manual...

  • Page 36: Functions Of Main Components

    Hold the top link when the top link is not in use. (14)Lift link right Adjustable link. (15)Power Take Off (PTO) shaft (e) Retractable seatbelt quick release button Transmit rotational force from the tractor to an (f) Backrest lever implement. Lx410/450/490 Operator's Manual...

  • Page 37: Operator Station Controls

    (12) Position stop knob (28) Retractable seatbelt (13) 3-point hitch control lever (29) Brake pedal connector lock (30) Brake pedals (14) Operator seat arm rest (15) 12V DC outlet (31) Parking brake lock lever (16) Cup holder Lx410/450/490 Operator's Manual...

  • Page 38: Function Of Components

    Change the direction of the tractor's movement. (A) Forward/N/reverse lever (a) Forward (b) N (neutral) (c) Reverse 12 P1080942 (3) Hazard lights button switch Turn ON or OFF the hazard lights. (A) Hazard lights button switch (a) ON (b) OFF v30_w_c5_P34-n4_P1080974 Lx410/450/490 Operator's Manual...
  • Page 39 (a) Increase the engine speed (Revolutions Per Minute (rpm)) (b) Decrease the engine speed (Revolutions Per Minute (rpm)) 15_ IMG 4500 (7) Accelerator pedal Increases or decreases the engine speed Revolutions Per Minute (rpm) rate. (A) Accelerator pedal Accelerator_pedal Lx410/450/490 Operator's Manual...
  • Page 40 (A) Implement control lever lock (a) Locked position (b) Unlocked position 450_009_ICLLock (11)Power Take Off (PTO) switch Turn ON or OFF the Power Take Off (PTO). (A) Power Take Off (PTO) switch (a) ON position (b) OFF position 14-13_PTO_SW_1 Lx410/450/490 Operator's Manual...
  • Page 41 (A) 3-point hitch control lever 3P_hitch_lever_3 (14)Position stop knob Hold the 3-point hitch control lever to a specific position. (A) Position stop knob PositionStopKnob_4 (15)Operator seat arm rest Use to rest the operator's arms. (A) Operator seat arm rest v30_w_c5_P40-n1_IMG 4466 Lx410/450/490 Operator's Manual...
  • Page 42 ● Avoid using the 12V DC outlet as cigarette lighter. 12V DC (17)Cup holder The place where a cup is held. (A) Cup holder Cup_holder01 (18) Range gear lever Change the range gear setting. (A) Range gear lever IMG_4479 2 Lx410/450/490 Operator's Manual...
  • Page 43 4480 (21)Tilt pedal Change the inclination angle of the steering wheel. (A) Tilt pedal (a) Locked position (b) Unlocked position v30_w_c5_P39-n1_P1080277 (22)Operator seat Station where the operator sit to operate the tractor. (A) Operator seat v30_w_c5_n1_P1090027 Lx410/450/490 Operator's Manual...
  • Page 44 (A) Operator seat suspension stroke adjustment knob (a) Decrease (b) Increase 34 P1080900 (26)Hydraulic flow control/stop knob Increases/decreases and closes/opens the hydraulic circulation of the 3-point hitch. (A) Hydraulic flow control/stop knob (a) Close - stop (b) Open 35 P1080310 5-10 Lx410/450/490 Operator's Manual...
  • Page 45 Keep the operator safe while operating the tractor. (A) Retractable seatbelt 45005228 (30)Brake pedal connector lock Locks the left and the right brake pedals together. (A) Brake pedal connector lock (a) Locked position (b) Unlocked position 39 IMG_44733 5-11 Lx410/450/490 Operator's Manual...
  • Page 46 5. NAMES AND FUNCTIONS OF COMPONENTS (31)Brake pedals Reduce the speed and stop the tractor. (A) Brake pedal 40IMG 4473 (32)Parking brake lock lever Engage the parking brake. (A) Parking brake lock lever (a) Lock (b) Unlock 4 IMG_4473a 5-12 Lx410/450/490 Operator's Manual...

  • Page 47: Instrument Panel

    ● If the pointer on the coolant temperature gauge parking brake itself may not be actually securely enters the red zone or the reading rapidly locked. increases again: • shut down the engine • immediately contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance 5-13 Lx410/450/490 Operator's Manual...
  • Page 48 • increase the engine speed ● If the light still remains illuminated: • immediately shut down the engine • contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance (11)Engine oil pressure warning light The engine oil pressure warning light remains illuminated when: ●...

  • Page 49: Pre-Operation Check

    5. Correct any problem detected. • Avoid spraying chemical substances on and near 6. Contact YOUR LOCAL YANMAR TRACTOR the tractor. DEALER for problems that can not be solve. 3. Avoid spilling diesel fuel onto the tractor. • Diesel fuel can damage the plastic surfaces and Avoid operating the tractor when a problem has been painted surfaces.

  • Page 50: Operate The Engine

    Make corrections as start the engine while the operator is still on necessary. the ground NOTE ● When the temperature is below 40°F (5°C), for details, see "Start the Engine in Cold Weather" on page 7-8. Lx410/450/490 Operator's Manual...
  • Page 51 • turn the operator seat suspension stroke adjustment knob clockwise to decrease the stroke (minimum: 1.57 in. (40 mm)) • turn the operator seat suspension stroke adjustment knob counterclockwise to increase the stroke (maximum: 3.15 in. (80 mm)) Lx410/450/490 Operator's Manual...
  • Page 52 ● Hold the retractable seatbelt with the right (a) Toward the front hand when pressing the retractable seatbelt (b) Toward the rear (c) Unlock quick release button. (d) Lock ● The retractable seatbelt flies to the right which is highly dangerous. Lx410/450/490 Operator's Manual...
  • Page 53 1. Release the left and right brake pedals. position. 2. Move counterclockwise the brake pedal connector lock to lock together the left and right brake pedals. v30_w_c5-P35_n2_IMG_4480 (A) Primary gear lever 41 IMG_4473c (A) Brake pedal connector lock (a) Locked position (b) Unlocked position Lx410/450/490 Operator's Manual...
  • Page 54 The glow (A) 3-point hitch control lever plugs indicator light illuminates for 15 seconds, for (a) Lowest position Lx410/450 models. Air heater indicator light (b) Highest position illuminates for 15 seconds for Lx490 model. NOTE ● If the tractor is equipped with the implement...
  • Page 55 (A) Neutral indicator light ● If the key is released before the engine started: (B) Parking brake indicator light (C) Glow plug indicator light for Lx410/Lx450 • wait until both the starter and engine stop model rotating before trying to start the tractor again...
  • Page 56 • the amount of pale blue exhaust varies depending on the ambient temperature ● Idling the engine for a long time wastes fuel and causes carbon accumulation in the engine. 15 IMG_4500b (A) Throttle control lever 4 IMG_4473a (B) Parking brake lock lever Lx410/450/490 Operator's Manual...

  • Page 57: Start The Engine In Cold Weather

    2. For information about the engine oil and/or transmission hydraulic oil heater, contact YOUR LOCAL YANMAR TRACTOR DEALER. 3. Turn the starter key switch to ON position. 4. Wait for 15 seconds. 5. After the glow plug indicator light goes out, start the engine.
  • Page 58 • make sure that the engine is not running ● The tractor wheels are free to move when any of the following is in the N (neutral) position: • primary gear lever • range gear lever • forward/N/reverse lever Lx410/450/490 Operator's Manual...

  • Page 59: Restart A Stalled Engine

    (C) Range gear lever (D) Primary gear lever 5. Crank the engine for a maximum of 20 seconds. 6. If the engine fails to start within 20 seconds, stop cranking. 7. Wait at least 2 minutes before cranking again. 7-10 Lx410/450/490 Operator's Manual...

  • Page 60: Operate The Tractor

    ● Regularly communicate and watch each other. ● Make sure all persons and implements in the area do not impede or cause injury to each other. Always ensure the tractor is at a complete stop before attempting to get on or off. Lx410/450/490 Operator's Manual...

  • Page 61: Operate A New Tractor

    To bring about optimal tractor performance and to Yanmar recommends changing the lubricating oil achieve the longest tractor life, various parts of the earlier than the standard oil change schedule.

  • Page 62: Raise And Lower The Roll-Over Protective Structure (Rops)

    IMG_4628od1 of the structure. ● Immediately replace a damaged Roll-Over Protective Structure (ROPS). Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance. ● Do not under any circumstances use the retractable seatbelt: • while the Roll-Over Protective Structure (ROPS) is in the folded "down"...

  • Page 63: Raise (Unfolded "Up") The Roll-Over Protective Structure (Rops)

    "3. Adjust the Operator Seat" on page 7-2. Regarding how to fasten the retractable seatbelt, for IMG_4628od 1 details, see "4. Fasten the Retractable Seatbelt" on page 7-3. 450_P1080347 (A) Insert pin (B) Insert pin jam hole (C) Hairpin clip Lx410/450/490 Operator's Manual...

  • Page 64: Headlights And Side Lights

    (c) Reverse intention to turn right. IMPORTANT ● Before starting the tractor, set the forward/N/ reverse lever to the N (neutral) position. NOTE ● Changing the position of forward/N/reverse lever is allowed without depressing the clutch pedal. Lx410/450/490 Operator's Manual...

  • Page 65: Warm Up Transmission Hydraulic Oil In A Cold Weather Situation

    Ambient Temperature Required warm-up time (°F (°C)) (min.) Over 14 (-10) Approximately 5 5 to 14 (-15 to -10) 5 to 10 -4 to 5 (-20 to -15) 10 to 20 Lower than -4 (-20) Longer than 20 Lx410/450/490 Operator's Manual...

  • Page 66: Primary Gear Lever

    2. Move the following levers to the N (neutral) position: • Primary gear lever • Range gear lever • Forward/N/reverse lever 3. Set the range gear lever, to match the speed range (H-N-M-N-L) with the current work. Lx410/450/490 Operator's Manual...
  • Page 67 Work involving a moderate level of release the clutch pedal, for the following levers: hauling; e.g., tilling, and grass • Range gear lever mowing. • Forward/N/reverse lever Work involving high-speed • 2WD/4WD lever operation, e.g., light mowing and transport. Lx410/450/490 Operator's Manual...

  • Page 68: 2Wd/4Wd Lever

    ● Disengaging the 4-wheel drive increases the lever forward. service life of the front tires. • The preceding action connects the mechanical front wheel drive axle to the power train. IMG_4479 4 (A) 2WD/4WD lever (a) 4WD position (b) 2WD position Lx410/450/490 Operator's Manual...

  • Page 69: Throttle Control Lever

    1. Use the accelerator pedal to increase or decrease (a) Lower tractor speed. (b) Raise 2. The accelerator pedal is mainly used when traveling on roads. Accelerator_pedal (A) Accelerator pedal (a) Depress to increase engine speed (b) Release to decrease engine speed 8-10 Lx410/450/490 Operator's Manual...

  • Page 70: Stop The Tractor

    5. If possible, lock the parking brake securely. P5-3 top view_2 (A) Forward/N/reverse lever (B) Power Take Off (PTO) switch (C) Range gear lever (D) Primary gear lever (E) Clutch pedal 40 IMG 4473b (F) Brake pedal connector lock (G) Brake pedals 8-11 Lx410/450/490 Operator's Manual...

  • Page 71: Use The Brake

    3. Depress the locked brake pedals to slow down or position while the parking brake lock lever is stop the tractor. engage. 40 IMG 4473b (A) Brake pedal connector lock (B) Right turn brake pedal (C) Left turn brake pedal 8-12 Lx410/450/490 Operator's Manual...

  • Page 72: Use The Brake Pedal For Easier Turning

    ● Do not operate the tractor when the foot is resting on the clutch pedal. ● Select the gear and engine speed best suited for the current work. 40 IMG 4473b (A) Brake pedal connector lock (B) Right brake pedal (C) Left brake pedal 8-13 Lx410/450/490 Operator's Manual...

  • Page 73: Practices For Safe Operation

    ● Release the differential lock pedal. ● Always have an implement safety lighting kit available from YOUR LOCAL YANMAR 1. When rear wheels begin to slip: TRACTOR DEALER. • Engage the differential lock to gain greater ●...

  • Page 74: Push Or Tow The Tractor

    The preceding action makes (C) Differential lock pedal the tractor unstable resulting in an extremely (D) Power Take Off (PTO) switch (E) Range gear lever dangerous situation. 16.While on the road, avoid under any circumstances operate an implement. 8-15 Lx410/450/490 Operator's Manual...

  • Page 75: Allowable Loads When Towing With The Tractor

    • when turning ● On a slope: • on a slope • make sure the gear is low enough to allow the operator to control the speed of the tractor without having to use the brake pedals 8-16 Lx410/450/490 Operator's Manual...

  • Page 76: Transport The Tractor On A Trailer

    ● To prevent the preceding danger: • run the engine at a lower speed • slowly start the tractor 8-17 Lx410/450/490 Operator's Manual...

  • Page 77: Uphill And Downhill Slopes

    • the preceding action sets the level of engine brake ● Select the range gear lever position suitable for the steepness of a slope. ! WARNING Avoid injury! ● When backing up a slope, keep the tractor parallel with the inclination of the slope. 8-18 Lx410/450/490 Operator's Manual...

  • Page 78: About The Power Steering

    ● Avoid turning the steering wheel of the tractor while the engine is shut off, unless while towing the tractor. • the preceding action can damage the steering valve, tires and rims 8-19 Lx410/450/490 Operator's Manual...

  • Page 79: Power Take Off (Pto) System

    ● Do not run the engine at 2750 Revolutions Per ● Avoid approaching or touching any rotating Minute (rpm) for Lx410/450 and 2650 component. Revolutions Per Minute (rpm) for Lx490 or more while Power Take Off (PTO) switch is ON position.

  • Page 80: Determine The Appropriate Power Take Off (Pto) Speed

    (a). position: • always drive within or below the indicated RATED speed 14-13_PTO_SW_1 (A) Power Take Off (PTO) switch (a) ON (b) OFF 42 P1080979 (A) RATED mark 2. Increase the engine speed required for the implement. Lx410/450/490 Operator's Manual...

  • Page 81: Disengage Power Take Off (Pto) (With The Operator On The Operator Seat)

    ● Entanglement with a rotating driveline can lead to serious injury or even death. ● Keep away from rotating driveline. ● Keep clothing away from rotating driveline. ● Make sure all shields and guards are in position and are correctly installed and used. Lx410/450/490 Operator's Manual...

  • Page 82: Install An Implement To Power Take Off (Pto) Driveline

    1. Park the tractor safely and securely. • For details, see "7. Safe Practices for Parking the Tractor" on page 1-7. 2. Shut off the engine. 3. Chock all the tires safely and securely. 4 IMG_4473b (A) Parking brake lock lever Lx410/450/490 Operator's Manual...

  • Page 83: Point Hitch And Drawbar

    ● Always use approved implements with the 3- (H) Lift Link left point hitch. (I) Power Take Off (PTO) shaft ● Contact YOUR LOCAL YANMAR TRACTOR (J) Power Take Off (PTO) shield DEALER for technical assistance. ■ Use the 3-Point Hitch Control Lever NOTE ●...

  • Page 84: Use The Position Stop Knob

    • the hydraulic system may be damaged lowered to the established working height. ● Do not operate the 3-point hitch control lever when the hydraulic flow control/stop knob is closed. • the preceding action can cause the transmission hydraulic oil to overheat 10-2 Lx410/450/490 Operator's Manual...

  • Page 85: Use The Lower Links (And Top Link As Needed)

    1. Slowly back up the tractor into a position where the lower links are aligned with the implement lift brackets. 2. Park the tractor safely and securely. • For details, see "7. Safe Practices for Parking the Tractor" on page 1-7. 10-3 Lx410/450/490 Operator's Manual...

  • Page 86: Level The Implement Front To Rear

    5. Raise the implement. Check if the desired levelness is attained. Re- adjust the top link as necessary. 6. Once the desired levelness is attained, tighten the locknut. 10-4 Lx410/450/490 Operator's Manual...

  • Page 87: Adjust The Stabilizer

    ● Such strain is also greatly increased by speed and rough ground. 1. Avoid attaching very heavy equipment (e.g., a loaded single axle trailer) that exerts excessive strain on the drawbar. 10-5 Lx410/450/490 Operator's Manual...

  • Page 88: Deploy/Stow The Drawbar

    ● Install the hairpin clip. use. 4. Set the drawbar length by lining up the hole (a) in the drawbar with the corresponding hole in the drawbar bracket. 5. Install the pin. 6. Install the hairpin clip. 10-6 Lx410/450/490 Operator's Manual...
  • Page 89 (of the implement or trailer) can be connected. ● For additional safety, install a chain shackle to the drawbar bracket. 10-7 Lx410/450/490 Operator's Manual...

  • Page 90: Hydraulic System

    • immediately stop the operation (B) Position stop knob (a) Moving the 3-point hitch control lever forward • contact YOUR LOCAL YANMAR TRACTOR lowers the implement. DEALER to check and repair the tractor (b) Moving the 3-point hitch control lever backward raises the implement.

  • Page 91: Use The Position Stop Knob

    • the hydraulic system may be damaged ● Do not operate the 3-point hitch control lever when the hydraulic flow control/stop knob is closed. • the preceding action can cause the transmission hydraulic oil to overheat 11-2 Lx410/450/490 Operator's Manual...

  • Page 92: Operate The Implement Control Valve

    ● Avoid interchanging the hydraulic lines between ■ Implement Control Lever coupler 1 and coupler 3. Contact YOUR LOCAL 1. Use the implement control lever to operate the YANMAR TRACTOR DEALER for technical optional mounted implements. assistance. ● Avoid interchanging hydraulic lines between coupler 2 and coupler 4.

  • Page 93: Implement Control Lever Lock

    4. For the procedure on connecting the hydraulic hoses to the hydraulic quick couplers, read the implement Operator's Manual. 450_009_ICLLock (A) Implement control lever (B) Implement control lever lock (a) LOCK position (b) UNLOCK position 11-4 Lx410/450/490 Operator's Manual...
  • Page 94 11. HYDRAULIC SYSTEM 450110202 (A) Hydraulic quick couplers (1) Blue (2) Green (3) Red (4) Yellow NOTE ● Insert the rubber plug into an unused coupler. 11-5 Lx410/450/490 Operator's Manual...

  • Page 95: Tires, Wheels And Weights

    • changing the wheels IMPORTANT • adjusting the tire tread width ● Only use the tires approved by Yanmar tractor dealers. ● Always keep the wheel bolts tightened to the ● Always install the same tires types in the front specified torque.

  • Page 96: Adjust The Wheels

    ● If the tire air pressures rapidly and significantly decrease though the tires are correctly inflated Torque every day, immediately contact YOUR LOCAL YANMAR TRACTOR DEALER to inspect the ! WARNING problem tire/s and to replace the tire/s if necessary.

  • Page 97: Select The Front Tire Rolling Direction

    ● If the tractor is mostly used for loader operations, periodically reverse the tread pattern direction. • the preceding procedure increases the tire life and improves traction when reversing from dirt piles 12-3 Lx410/450/490 Operator's Manual...
  • Page 98 Wheel pattern 3015781_a 3015782_a 3015780_a 3015779_a Tread in. (mm) 51.9 (1319) 55.7 (1416) 64.0 (1626) 60.0 (1525) Rear Rear R3 Rear R4 (44 × 18.00-20) (17.5L-24) Wheel pattern 3015784_a 3015783_a Tread in. (mm) 55.8 (1417) 51.9 (1319) 12-4 Lx410/450/490 Operator's Manual...

  • Page 99: Remove/Install The Wheels

    ● Always use proper lifting devices with a capacity of more than 3 tons. ● Always have assistance from another person when installing or removing any implement. ● Exercise the preceding caution while installing or removing components of the tractor. 12-5 Lx410/450/490 Operator's Manual...

  • Page 100: Select The Appropriate Amount Of Front Weight

    (B) Front weights (option) R1: 14.9 × 24 3300 (1497) R3: 44 × 18.00-20 3420 (1551) R4:17.5L-24 4400 (1996) For information regarding the rear weight, for details, see "Use Liquid Weight for the Tires" on page 12-7. 12-6 Lx410/450/490 Operator's Manual...

  • Page 101: Use The Optional Rear Wheel Weights

    Optional cast iron rear wheel weights are available Optional rear ballast for carrying weights on the 3- from YOUR LOCAL YANMAR TRACTOR DEALER. point hitch is available from YOUR LOCAL YANMAR TRACTOR DEALER. The amount of weight needed in the rear ballast for the proper operation of a front mounted implement can be found on the Operator's Manuals.
  • Page 102 4 qt. (3.8 L) of water] No slush at -52°F (-47°C) Solid at -62°F (-52°C) 495 lb. 583 lb. [Add approx. 5 lb. (2.25 kg) (225 kg) (265 kg) CaCl per 4 qt. (3.8 L) of water] 12-8 Lx410/450/490 Operator's Manual...

  • Page 103: Maintenance

    Every 100hr or Clean ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ if necessary 19 Air Cleaner Element Every 1 year ✔ ✔ ✔ Replace or if necessary Check Daily ✔ 20 Fuses Replace If necessary ✔ 13-1 Lx410/450/490 Operator's Manual...
  • Page 104 Every 1000hr Every 2 years 41 Thermostat Replace ✔ or 2000hr after For assistance in periodic maintenance procedures, contact YOUR LOCAL YANMAR TRACTOR DEALER. NOTE ● Check the wheel bolt tightening torque after one hour of break-in. 13-2 Lx410/450/490 Operator's Manual...

  • Page 105: Diesel Fuel Specifications

    Yanmar's limited warranty conditions in case certain engines manufactured by Yanmar are operated with B7 Diesel are as follows: 1. Yanmar accepts the use of B7 Diesel only on the conditions that: • B7 Diesel must comply with "the American Standard ASTM D-6751 and ASTM D-7467(for Oxidation stability)"...

  • Page 106: Lubricants

    • if the tractor is operated for more than 1200 hours during the period, the coolant has to be replaced during flushing of the system ● After pouring the coolant, run the engine for a short period to mix the two fluids thoroughly. 13-4 Lx410/450/490 Operator's Manual...

  • Page 107: Replacement Parts

    13. MAINTENANCE 4. Replacement Parts ■ Technical Document For a copy of the Illustrated Parts List or the Technical Manual of the tractor, contact YOUR LOCAL YANMAR TRACTOR DEALER. ■ Parts ●Use Yanmar lubricants available from YOUR LOCAL YANMAR TRACTOR DEALER.

  • Page 108: Periodic Service

    ● Lower all the implement to the ground. • warranty repairs must be executed by an ● Move the range gear lever to N (neutral) authorized Yanmar tractor dealer position. ● Shut off the engine. ● Remove the key from the starter key switch before starting any maintenance work.

  • Page 109: Open/Close The Hood

    • set the other end outside of the work area ● Allow fresh outside air to flow into an enclosed work area to remove the engine exhaust gas from the area. 14-3 hood_brakcket (A) Hood support 14-2 Lx410/450/490 Operator's Manual...

  • Page 110: Close The Hood

    7. Clean the dipstick with a clean rag. 8. Insert the dipstick completely. 9. Remove the dipstick again. 10.Read the engine oil level on the dipstick. 11.The engine oil level must be between the upper and lower marks on the dipstick. 14-3 Lx410/450/490 Operator's Manual...

  • Page 111: Inspect The Transmission Hydraulic Oil Level

    7. Fully insert and then pull out the dipstick again. 8. Read the transmission hydraulic oil level on the dipstick. • The transmission hydraulic oil level should be between the upper mark and lower mark of the dipstick. 14-4 Lx410/450/490 Operator's Manual...

  • Page 112: Check The Tire Air Pressure

    • the preceding practice prevents the liquid from escaping through the valve stem ● To prevent tire damage: • always inflate the tires to less than the maximum tire air pressure shown on the tire sidewall 14-5 Lx410/450/490 Operator's Manual...

  • Page 113: Clean The Front Grille And Side Screens

    • Always ensure that the Roll-Over Protective Structure (ROPS) mounting hardwares are in correct working condition. 2. If any damage hardware is detected: • Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance. ■ Check the Headlights, Hazard Lights, 450140206 etc.

  • Page 114: Check And Clean The Rubber Dust Unloading Valve

    7. Fill the fuel tank with fresh fuel. NOTE IMPORTANT ● The above illustration shows Lx410/450. ● Never overfill the fuel tank. 8. Install the fuel filler cap. E P A R E G U L A T I O N...

  • Page 115: Clean The Radiator Hoses And Clamps

    (C) Lower radiator hose deterioration. NOTE ● The hoses must not be too hard, brittle, too soft ● The above illustrations shows Lx410/450. or swollen. ● Replace the damaged hose/s. 6. Check the upper and the lower radiator hoses for any damages and cracks.

  • Page 116: Clean The Radiator Cooling Screen

    1. Park the tractor safely and securely. NOTE • For details, see "7. Safe Practices for Parking the ● The above illustration shows Lx410/450. Tractor" on page 1-7. 2. Shut off the engine. 3. Chock all the tires safely and securely.

  • Page 117: Check The Wheel Bolt Tightening Torque

    (A) Radiator cooling fins 450120201 F-wheel (A) Front wheel bolts 450140211 (B) Radiator cooling screen NOTE ● The above illustration shows Lx410/450. 450120202 R-wheel (B) Rear wheel bolts 490 radiator_screen (A) Radiator cooling screen NOTE ● The above illustration shows Lx490.

  • Page 118: Inspection Procedure For The Safety System

    If a problem is detected on the safety interlock NEVER inhale the engine exhaust gas. system: ● Do not attempt to operate the tractor. ● Contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance. 1. Power Take Off (PTO) Switch 1. Sit on the operator seat.
  • Page 119 9. Turn the starter key switch to the OFF position. IMG_4479 2 P5-3 top view_1 (C) Range gear lever (A) Parking brake lock lever (B) Power Take Off (PTO) switch (C) Range gear lever (D) Operator seat 14-12 Lx410/450/490 Operator's Manual...
  • Page 120 IMPORTANT ● Do not dismount from the tractor. 13.Make sure that the engine is shut down. 14.Push down Power Take Off (PTO) switch to OFF position. 15.Turn the starter key switch to OFF position. 14-13 Lx410/450/490 Operator's Manual...

  • Page 121: Check The Cooling System

    • the radiator and the engine are sufficiently NOTE cooled down that can be touched with bare ● The above illustration shows Lx410/450. hands ● When removing the radiator cap, always: • loosen the radiator cap to the first stop •...

  • Page 122: Check And Replace As Necessary

    For details, see "3. Bulb" on page 15-5. ■ Change the Alternator/Fan Belt ■ Check and Drain the Fuel/Water Separator For maintenance work, for details, see "Service the Alternator/fan Belt" on page 14-19. For details, see "Check the Fuel/Water Separator" on page 14-20. 14-15 Lx410/450/490 Operator's Manual...

  • Page 123: Every 50 Hours

    14.Check the front axle gear oil level again. 3014928_hst 9. Remove the dipstick again. 10.Check the front axle gear oil level on the dipstick. 11.The front axle gear oil level must be between the upper and lower marks on the dipstick. 14-16 Lx410/450/490 Operator's Manual...

  • Page 124: Grease Fittings

    14. PERIODIC SERVICE ■ Grease Fittings IMPORTANT ● Use the recommended greases by Yanmar. • the preceding procedure prevents premature wear or failure of the parts and components ● The recommended greases by Yanmar perform efficiently in an average ambient temperature range from -20 to +275 °F (-29 to +135 °C).
  • Page 125 1. Move the operator seat forward. 2. Lubricate the rear part of the operator seat slide ® rails with SUPER LUBE lubricants. 3. Move the operator seat backward. 4. Lubricate the front part of the operator seat slide rails. 14-18 Lx410/450/490 Operator's Manual...

  • Page 126: Service The Alternator/Fan Belt

    8. Lower the hood. inward by approximately 0.4 to 0.6 in. (10 to 15 9. Confirm that the hood latch locked securely. mm). 8. If the deflection is not as specified, adjust the tension of the alternator/fan belt. 14-19 Lx410/450/490 Operator's Manual...

  • Page 127: Check The Fuel/Water Separator

    5. Turn the fuel shut-off valve to the OFF (closed) 17.Lower the hood. position. 18.Confirm that the hood latch locked securely. 6. Turn the drain cock at the bottom of the fuel/water separator to drain away the water condensation. 7. Close the drain cock. 14-20 Lx410/450/490 Operator's Manual...

  • Page 128: Check The Battery Condition

    Allow any trapped air to be bled from the fuel ● Touching hot surfaces can burn skin. system. If necessary, contact YOUR LOCAL ● If the engine has been running for some time, YANMAR TRACTOR DEALER for technical the engine components are hot including all assistance. internal fluids.
  • Page 129 • rinse in clean water and allow to dry • once the outer filter is fully dry, inspect the NOTE interior using a light to check for any damage ● The above illustrations shows Lx410/450. 3017899 (A) Outer filter (B) Compressed air 450140622b 11.Install the outer filter.

  • Page 130: Clean The Fuel/Water Separator And Replace The Fuel Filter

    • protect the engine against dust when a fouled NOTE up outer filter is removed ● The fuel system is self bleeding. ● Do not remove the inner filter during maintenance work on the outer filter. 14-23 Lx410/450/490 Operator's Manual...

  • Page 131: Every 200 Hours

    4. Chock all the tires safely and securely. 5. Allow the engine to cool down for several minutes. 6. Raise the hood. 7. Place an oil pan underneath the engine oil drain plug. 450140725 (A) Engine oil drain plug 14-24 Lx410/450/490 Operator's Manual...
  • Page 132 (A) Engine oil filler cap (B) Engine oil filter (C) Dipstick (a) Upper mark (b) Lower mark NOTE ● The above illustrations shows Lx410/450. NOTE ● Carefully clean the area around the dipstick before removing the dipstick. 14-25 Lx410/450/490 Operator's Manual...

  • Page 133: Inspect And Adjust The Toe-In

    As necessary, tighten the upper air intake hose • Repeat the preceding procedures 3, 4 and 5 until clamp and the lower air intake hose clamp. the required difference of the distance 7. Lower the hood. measurement is attained. 14-26 Lx410/450/490 Operator's Manual...

  • Page 134: Every 300 Hours

    8.5 US gal (32 L) (B) Air intake hose NOTE ■ Change the Transmission Hydraulic Oil ● The above illustration shows Lx410/450. and Replace the Transmission Hydraulic Oil Filters ! WARNING ● Touching any hot surfaces can burn the skin.
  • Page 135 (A) Transmission hydraulic oil filler cap turning clockwise. (B) Dipstick • Continue turning until the gasket is seated against the transmission hydraulic oil filter base. • Turn the transmission hydraulic oil filter an additional of approximately 1/2 turn. 14-28 Lx410/450/490 Operator's Manual...

  • Page 136: Every 500 Hours

    Avoid injury! ■ Adjust the Brake Remember that diesel fuel vapor is explosive and flammable: Contact YOUR LOCAL YANMAR TRACTOR ● Never smoke while handling diesel fuel. DEALER for technical assistance. ● Keep the diesel fuel away from open flame or sparks.
  • Page 137 15.Remove the dipstick again. 16.Check the front axle gear oil level on the dipstick. 17.The front axle gear oil level must be between the upper and lower marks on the dipstick. Add front axle gear oil as necessary. 14-30 Lx410/450/490 Operator's Manual...

  • Page 138: Every 1000 Hours

    • the preceding action releases excessive pressure on the radiator • Fully remove the radiator cap once the pressure has been released completely. 7. Place a drain pan underneath the radiator petcock hose. 8. Remove the radiator petcock. 14-31 Lx410/450/490 Operator's Manual...
  • Page 139 7. Add coolant as necessary. internal fluids. 8. Lower the hood. 9. Install the radiator petcock. 10.Install the engine coolant drain plug. 450140934 (A) Radiator cap 14-31_Petcock (A) Radiator petcock 14-32 Lx410/450/490 Operator's Manual...

  • Page 140: Recommended Engine Coolant

    ● Replace the coolant in the following cases: • after 1000 hours of operation or 2 years NOTE whichever comes first ● The above illustration shows Lx410/450. • the cooling system is flushed Follow the instructions on the antifreeze container or contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.

  • Page 141: Every 2 Years Or 2000 Hours

    14. PERIODIC SERVICE 11. Every 2 Years or 2000 Hours ■ Replace the Thermostat Contact YOUR LOCAL YANMAR TRACTOR DEALER. 12. General Maintenance ! WARNING Avoid injury! ● The rubber product/s has/have a deteriorative character. The deteriorated rubber product/s may cause defects and damages such as fluid leakage, loss control of the tractor during operation, fire, burn injury.

  • Page 142: Service The Electrical System

    State of ● Connect the positive (+) battery terminal first California to cause cancer and reproductive during installation of batteries. harm. ● After handling the battery, wash the hands thoroughly. 15-1 Lx410/450/490 Operator's Manual...

  • Page 143: Inspect The Battery

    • transmission hydraulic oil (F) Bracket • battery NOTE • coolant ● The above illustration shows Lx410/450. • front axle gear oil ● Exercise good judgment in deciding what is and what is not hazardous. ● Dispose hazardous materials only in waste disposal facilities designated by local authorities.

  • Page 144: Clean The Battery And Terminals

    ) booster cable 6. Remove the battery. • For details, see "1. Remove the Battery" on page 15-3. 7. Dissolve four tablespoons of baking soda in 4 qt. (3.8 L) of water to prepare a solution. 15-3 Lx410/450/490 Operator's Manual...

  • Page 145: Fuses

    IMPORTANT ● If alternator/battery charging light illuminates: 450140933 • shut off the engine of the disabled tractor • contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance 11.Carefully disconnect the booster cables: • Perform the disconnection of the booster cables from the abled and disabled tractors by doing the reverse of the preceding procedure.

  • Page 146: Check The Alternator Fuse And The Main Fuse

    Main Fuse 1. Park the tractor safely and securely. IMPORTANT • For details, see "7. Safe Practices for Parking the ● Replace blown bulbs with new Yanmar genuine Tractor" on page 1-7. spare bulb only. 2. Shut off the engine.

  • Page 147: Replace The Side Lights Bulb

    9. Insert new side lights bulb into the bulb socket. 10.Install the bulb socket clockwise into lock position. 11.Turn the starter key switch to ON position. 12.Turn on side lights switch. 13.Make sure the side light bulbs are functioning. 14.Lower the hood. 15-6 Lx410/450/490 Operator's Manual...

  • Page 148: Replace The Turn Signal/Hazard Lights Bulb

    (B) Instrument panel cover 8. Remove the 4 bolts from the instrument panel housing. 9. Carefully pull out the instrument panel rearward. 10.Remove the 6 screws from the instrument panel housing back cover. 450150107 (B) Bulb 15-7 Lx410/450/490 Operator's Manual...

  • Page 149: Headlights

    ● If a sufficient workspace is needed, the steering wheel may be temporarily removed. 4. Headlights ■ Adjust the Headlights 1. The headlights are not adjustable. 2. If headlights adjustment is required, contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance. 15-8 Lx410/450/490 Operator's Manual...

  • Page 150: Storage

    4. Turn the starter key switch to the OFF position. the chute and bagger. 8. Remove all attached weight and ballast from the tractor. 9. Wash the tractor and apply wax to the metal and plastic surfaces. 16-1 Lx410/450/490 Operator's Manual...

  • Page 151: Engine

    10.Store the tractor in a dry and safe place. 11.If the tractor is stored outdoors, protect the tractor with a waterproof cover. 12.Jack up the tractor and place blocks under the front and rear axles to lift the tires off the ground. 16-2 Lx410/450/490 Operator's Manual...

  • Page 152: Troubleshooting

    1. How to Use the Troubleshooting Table The troubleshooting table given below is quick reference for solving common problems. If any fault, failure or a problem requiring repair work is found, contact YOUR LOCAL YANMAR TRACTOR DEALER for technical assistance.
  • Page 153 • bleed air from the fuel system • Check whether there is leak or bent in the fuel line. • contact YOUR LOCAL YANMAR TRACTOR DEALER • Check whether the fuel injection pump is out of timing. • contact YOUR LOCAL YANMAR TRACTOR DEALER •...
  • Page 154 • bleed air from the fuel system • Check whether there is leak or bent in the fuel line. • contact YOUR LOCAL YANMAR TRACTOR DEALER • Check whether the fuel injection pump is out of timing. • contact YOUR LOCAL YANMAR TRACTOR DEALER 3.
  • Page 155 • bleed air from the fuel system • Check whether the fuel injection pump is out of timing. • contact YOUR LOCAL YANMAR TRACTOR DEALER • Check whether the fuel nozzles are faulty. • contact YOUR LOCAL YANMAR TRACTOR DEALER 2.
  • Page 156 • flush the cooling system • Check whether radiator cap and thermostat is/are faulty. • contact YOUR LOCAL YANMAR TRACTOR DEALER 2. A problem in the engine mechanical 2. Engine mechanical system • Check whether the alternator/fan belt is loose or faulty.
  • Page 157 • use correct fuel specification • Check whether the fuel system has a leak. • contact YOUR LOCAL YANMAR TRACTOR DEALER • Check whether the fuel injection pump is out of timing. • contact YOUR LOCAL YANMAR TRACTOR DEALER •...
  • Page 158 1. Fuel system coming from the • Check whether the fuel injection engine pump is out of timing. • contact YOUR LOCAL YANMAR TRACTOR DEALER 2. A problem in the cooling 2. Cooling system • Check whether the coolant temperature is too low.

  • Page 159: Electrical System

    • remove the water and clean the sediment bowl • Check whether the fuel nozzles are faulty. • contact YOUR LOCAL YANMAR TRACTOR DEALER • Check whether the fuel injection pump is out of timing. • contact YOUR LOCAL YANMAR TRACTOR DEALER 2.
  • Page 160 • replace the blown fuse/s • Check whether the starter key switch or the starter is/are faulty. • contact YOUR LOCAL YANMAR TRACTOR DEALER 2. A problem in the battery 2. Battery • Check for loose or corroded the battery terminals and battery cables.

  • Page 161: Brakes

    • adjust the brakes correctly • Check whether the brake linkage is worn out or damaged. • contact YOUR LOCAL YANMAR TRACTOR DEALER • Check whether the brake disk is worn out or damage. • contact YOUR LOCAL YANMAR TRACTOR DEALER 4.

  • Page 162: Body And Machinery

    • adjust the idle speed 2. A problem in the transmission 2. Transmission • Check whether the drive shaft is worn out. • contact YOUR LOCAL YANMAR TRACTOR DEALER The engine is 1. A problem in the transmission 1. Transmission running, but the •...

  • Page 163: Index

    Turn Signal ........8-5, 14-6, 15-7 Open/Close the Hood......... 14-2 Warm Up the Engine in Cold Weather....7-7 Operate the Implement Control Valve....11-3 Weights...............12-5 Operator Station Controls ........5-3 Wheels..............12-2 Operator Seat............7-2 Wheel Bolt Tightening Torque ......12-2 18-1 Lx410/450/490 Operator's Manual...
  • Page 164 NOTE...
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  • Page 168 101 International Pkwy Adairsville, GA 30103 http://www.yanmar.com ENGLISH...

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