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U.S.A.
:  KUBOTA TRACTOR CORPORATION
1000 Kubota Drive, Grapevine, TX 76051
Telephone  :  888-4KUBOTA
Canada
:  KUBOTA CANADA LTD.
5900 14th Avenue, Markham, Ontario, L3S 4K4, Canada
Telephone  :  (905)294-7477
France
:  KUBOTA EUROPE S.A.S
19-25, Rue Jules Vercruysse, Z.I. BP88, 95101 Arɡenteuil Cedex, France
Telephone  :  (33)1-3426-3434
Italy
:  KUBOTA EUROPE S.A.S Italy Branch
Via Grandi, 29 20068 Peschiera Borrome (MI) Italy
Telephone  :  (39)02-51650377
Germany
:  KUBOTA (DEUTSCHLAND) GmbH
Senefelder Str. 3-5 63110 Rodɡau /Nieder-Roden, Germany
Telephone  :  (49)6106-873-0
U.K.
:  KUBOTA (U.K.) LTD.
Dormer Road, Thame, Oxfordshire, OX9 3UN, U.K.
Telephone  :  (44)1844-214500
Spain
:  KUBOTA ESPAÑA S.A.
Avenida Recomba No.5, Poliɡno Industrial la Laɡuna, Leɡanes, 28914 (Madrid) Spain
Telephone  :  (34)91-508-6442
Turkey
:  Kubota Turkey Makine Tic.Ltd.Şti.
Cumhuriyet Mah. Yahya Kaptan Cad. No:3 Cayirova / Kocaeli/Turkey 41420
Telephone  :  (90)262-658-9045
Australia
:  KUBOTA AUSTRALIA PTY LTD.
25-29 Permas Way, Truɡanina, VIC 3029, Australia
Telephone  :  (61)-3-9394-4400
Malaysia
:  KUBOTA MALAYSIA SDN. BHD.
Lot 766, Jalan Subanɡ 4, off Persiaran Subanɡ Sunɡai Penaɡa Industrial Park, 
47500 Subanɡ Jaya
Telephone  :  (60)-3-7890-3533
Philippines :  KUBOTA PHILIPPINES, INC.
232 Quirino Hiɡhway, Baesa, Quezon City 1106, Philippines
Telephone  :  (63)2-422-3500
Taiwan
:  SHIN TAIWAN AGRICULTURAL MACHINERY CO., LTD.
16, Fenɡpinɡ 2nd Rd, Taliao Shianɡ Kaohsiunɡ 83107, Taiwan R.O.C.
Telephone  :  (886)7-702-2333
Indonesia :  PT KUBOTA MACHINERY INDONESIA
Tower A at EiɡhtyEiɡht@Kasablanka Lantai 16
Jalan Raya Casablanka Kav. 88, Jakarta 12870 Indonesia
Telephone  :  (62)-21-29568-720
Thailand
:  SIAM KUBOTA CORPORATION CO., LTD.
101/19-24 Moo 20, Navanakorn Industrial Estate, Tambon Khlonɡnuenɡ, Amphur Khlonɡluanɡ,
Pathumthani 12120, THAILAND
Telephone  :  (66)2-909-0300
Korea
:  KUBOTA KOREA CO., LTD.
41-27, Jayumuyeok-ɡil, Baeksan-myeon, Gimje-si, Jeollabuk-do, Korea
Telephone  :  (82)-63-544-5822
India
:  KUBOTA AGRICULTURAL MACHINERY INDIA PVT. LTD.
B 500 A & C, Indospace Industrial Park, 104 Polivakkam Villaɡe, 
Sriperumbadur-Thiruvallur Main Road, Thiruvallur District-602 002.
Telephone  :  (91)44-4019-2000
Vietnam
:  KUBOTA VIETNAM CO., LTD.
Lot B-3A2-CN, My Phuoc 3 Industrial Park, Thoi Hoa Ward, Ben Cat Town, Binh Duonɡ Province, Vietnam
Telephone  :  (84)-274-3577-507
AZ. L. 1-1. -. K
L
3
3
0
2
L
3
9
0
English (U.S.A.)
2
Code No. TC820-1973-1
©
KUBOTA Corporation 2021
OPERATOR'S MANUAL
1MGHW00001000
READ AND SAVE THIS MANUAL
MODELS
L3302
L3902

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Summary of Contents for Kubota L3902

  • Page 1 Telephone  :  (90)262-658-9045 L3902 Australia :  KUBOTA AUSTRALIA PTY LTD. 25-29 Permas Way, Truɡanina, VIC 3029, Australia Telephone  :  (61)-3-9394-4400 Malaysia :  KUBOTA MALAYSIA SDN. BHD. Lot 766, Jalan Subanɡ 4, off Persiaran Subanɡ Sunɡai Penaɡa Industrial Park,  47500 Subanɡ Jaya Telephone  :  (60)-3-7890-3533 Philippines :  KUBOTA PHILIPPINES, INC. 232 Quirino Hiɡhway, Baesa, Quezon City 1106, Philippines Telephone  :  (63)2-422-3500 Taiwan :  SHIN TAIWAN AGRICULTURAL MACHINERY CO., LTD. 16, Fenɡpinɡ 2nd Rd, Taliao Shianɡ Kaohsiunɡ 83107, Taiwan R.O.C. Telephone  :  (886)7-702-2333 Indonesia :  PT KUBOTA MACHINERY INDONESIA Tower A at EiɡhtyEiɡht@Kasablanka Lantai 16 Jalan Raya Casablanka Kav. 88, Jakarta 12870 Indonesia Telephone  :  (62)-21-29568-720 Thailand : ...
  • Page 2 ABBREVIATION LIST Abbreviations Definitions 2-Wheel Drive 4-Wheel Drive American Petroleum Institute American Society of Agricultural and Biological Engineers, USA ASABE ASTM American Society of Testing and Materials, USA Deutsches Institut für Normung, GERMANY Diesel Particulate Filter Dual Traction [4WD] Feet Per Minute Glide Shift Transmission Hi-Lo High Speed-Low Speed...
  • Page 3 UNIVERSAL SYMBOLS As a guide to the operation of your tractor, various universal symbols have been utilized on the instruments and controls. The symbols are shown below with an indication of their meaning. Safety Alert Symbol Draft Control-Deep Position Master System Warning 3-Point Lowering Speed Control Diesel Fuel Remote Cylinder-Retract...
  • Page 4 FOREWORD Thank you for the purchase of a Kubota product. Before using this product, read this manual carefully and use the product correctly. After reading, keep the manual in a safe and easy-to-access place for future reference. Note that product specifications are subject to change without prior notice.
  • Page 5 ™ Easy Checker Easy Checker is a trademark of Kubota TRACTOR CORPORATION. Company names, product names and service names described in this manual are the trademarks or registered trademarks of their respective owners. In the text, those names are not accompanied by trademark...
  • Page 7: Table Of Contents

    6. Seat belt ..............................40 7. Operator's seat ............................40 8. Clutch pedal [L3302 Manual transmission type] ..................41 9. Clutch pedal with dual clutch [L3902 Manual transmission type] .............. 41 10. Main gear shift lever and range gear shift lever [Manual transmission type only] ........41 11.
  • Page 8 1.1 Selecting the holes of lifting rods and lower links................83 1.2 Selecting the holes to mount the top link ................... 83 1.3 Dealing with the drawbar........................83 2. Attaching the 3-point hitch implement ....................... 83 2.1 Precautions for attaching and removing the 3-point hitch implement ..........83 L3302,L3902...
  • Page 9 13. Checking the head light, the turn signal / hazard light, and the tail light..........107 14. Checking the seat belt and the ROPS ....................107 15. Checking and cleaning the electrical wiring and battery cables ............107 16. Checking the movable parts ........................107 SERVICE EVERY 50 HOURS .......................... 108 L3302,L3902...
  • Page 10 2. Adjusting the fan belt tension ........................111 3. Checking the fuel grommet........................112 4. Adjusting the clutch pedal with single clutch [L3302 Manual transmission type]........112 5. Adjusting the clutch pedal with dual clutch [L3902 Manual transmission type] ........112 6.
  • Page 11 FLIPPING THE SEAT WITH FRONT LOADER (IF EQUIPPED WITH ARMREST KIT) ........131 REMOVING THE TRACTOR FROM STORAGE....................132 TROUBLESHOOTING ......................133 ENGINE TROUBLESHOOTING ........................133 ENGINE ERROR CODE ........................... 134 POWER TRAIN TROUBLESHOOTING......................134 OPTIONS ..........................135 OPTION ITEMS ..............................135 INDEX............................136 L3302,L3902...
  • Page 12 L3302,L3902...
  • Page 13: Safe Operation

    2. Precautions for CAB and ROPS tractor. Loose, torn, or bulky clothing may catch on Kubota recommends the use of a CAB or roll-over moving parts or controls, leading to the risk of an protective structures (ROPS), and seat belt in almost all accident.
  • Page 14 • Before starting the engine, make sure that all levers damaged, replace the entire structure at your local including auxiliary control levers are in their Kubota Dealer. “NEUTRAL” positions, that the parking brake is • If the tractor is equipped with a foldable ROPS, you...
  • Page 15 – Store food, drink and personal belongings away particles. from the work area. This dust can cause serious injury to the lungs – Wash hands and face before eating, drinking, (silicosis). smoking, or applying cosmetics after leaving the exposure area. L3302,L3902...
  • Page 16 Turning at high speed may tip over the tractor. Uneven braking at road speeds could cause the • Make sure that the slow-moving vehicle (SMV) sign tractor to tip over. is clean and visible. Use the hazard lights and turn signals as required. L3302,L3902...
  • Page 17 • Keep the PTO-shaft cover in place at all times. Replace the PTO-shaft cap when the shaft is not in use. (1) Safety chain • Set the 3-point hitch-lowering speed knob in the “LOCK” position to hold the implement in the raised position. L3302,L3902...
  • Page 18 If the tractor is equipped with a coolant-recovery tank, add coolant or water to the coolant-recovery tank. Do not add coolant to the radiator. (See Checking the coolant level on page 104) L3302,L3902...
  • Page 19 (such as rivers, produce gangrene or severe allergic reaction. streams, lakes, marshes, seas, and oceans). – Waste products such as used oil, fuel, coolant, hydraulic fluid, urea aqueous solution DEF (AdBlue), refrigerant, solvent, filters, rubber, L3302,L3902...
  • Page 20 SAFE OPERATION batteries, and harmful substances, can harm the environment, people, pets, and wildlife. Please dispose properly. See your local recycling center or Kubota Dealer to learn how to recycle or dispose of waste products. L3302,L3902...
  • Page 21 SAFE OPERATION SAFETY LABELS L3302,L3902...
  • Page 22 SAFE OPERATION L3302,L3902...
  • Page 23 SAFE OPERATION L3302,L3902...
  • Page 24 SAFE OPERATION L3302,L3902...
  • Page 25 SAFE OPERATION L3302,L3902...
  • Page 26 • Clean safety labels with soap and water, and dry with a soft cloth. • Replace damaged or missing safety labels with new labels from your local Kubota Dealer. • If a component with safety label(s) attached is replaced with new component, make sure that new label(s) is (are) attached in the same location(s) as the replaced component.
  • Page 27: Servicing Of The Tractor

    However, when your machine needs parts or major service, be sure to see your Kubota Dealer. For service, contact the Kubota Dealership from which you purchased your machine or your local Kubota Dealer.
  • Page 28: Scrapping The Tractor And Its Procedure

    2. Scrapping the tractor and its procedure To put the tractor out of service, correctly follow the local rules and regulations of the country or territory where you scrap it. If there is anything which you do not understand, consult your local Kubota Dealer. L3302,L3902...
  • Page 29: Specifications

    SPECIFICATION TABLE  SPECIFICATIONS SPECIFICATIONS SPECIFICATION TABLE L3302 Model Manual transmission 20.9 19.5 PTO power (factory observed) (HP) (28.0) (26.1) Model D1803-CR-E5 Type Direct injection, Vertical, Water-Cooled 4 cycle diesel Number of cylinders 87 × 102.4 Bore and stroke (in.) (3.4 × 4.0) 1.826...
  • Page 30  SPECIFICATIONS L3302 Model Manual transmission 1300 1325 Weight with ROPS (lbs.) (2866) (2921) AG Front 7.2-16 Tires AG Rear 11.2-24 Front 27 × 8.50-15 Indust. (option) Rear 15-19.5R4 Clutch Dry type single stage - Traveling system Steering Integral type power steering...
  • Page 31 1095 Front (in.) (43.1) Tread Rear 1115 (43.8), 1195 (47.1), 1290 (50.8) (in.) 1315 1325 Weight with ROPS (lbs.) (2899) (2921) AG Front 7.2-16 Tires AG Rear 11.2-24 Traveling system Front 27 × 8.50-15 Indust. (option) Rear 15-19.5R4 (Continued) L3302,L3902...
  • Page 32 (165) [psi.] [2349] PTO shaft size SAE 1-3/8, 6-splines Rear PTO Type Live-continuous running Hyd. ind-PTO PTO/Engine speed 540 / 2425 540 / 2470 NOTE : The company reserves the right to change the specifications without notice. Manufacturer's estimate L3302,L3902...
  • Page 33: Traveling Speeds Table

    TRAVELING SPEEDS TABLE  SPECIFICATIONS TRAVELING SPEEDS TABLE [Manual transmission type] Model L3302, L3902 Rear tire size 11.2-24 km/h Range gear shift lever Main gear shift lever At rated engine rpm At rated engine rpm Forward High 14.4 21.2 13.2 Reverse High 14.3...
  • Page 34: Implement Limitations

    Preceding implements may result in malfunctions or failures of the tractor, damage to other property, and injury to the operator or others. NOTE : • Kubota does not cover any malfunctions or failures of the tractor resulting from use with improper implements by the warranty. Model...
  • Page 35 (OPS) and falling-object-protective structure (FOPS). Optional equipments such as OPS, FOPS, however, are not available for this tractor. Without optional equipments such as OPS and FOPS, the use of the tractor is limited to tractor-specific applications like transport and stationary work. L3302,L3902...
  • Page 36  IMPLEMENT LIMITATIONS Implement weight list Implement Remarks L3302, L3902 2300 Maximum load capacity (lbs.) (5070) Trailer Maximum drawbar load (lbs.) (730) 1829 Maximum cutting width (in.) (72) Rotary-cutter Maximum weight (lbs.) (770) 1270 Maximum cutting width (in.) (50) Mower Flail-mower Maximum weight (lbs.)
  • Page 37  IMPLEMENT LIMITATIONS Implement Remarks L3302, L3902 15.9 Rear blade Maximum oil pressure (psi.) (2311) Maximum lifting capacity (lbs.) (1014) Front-end loader 15.9 Maximum oil pressure (psi.) (2311) Sub frame Not necessary 1321 Maximum cutting width (in.) (52) Box blade Maximum weight (lbs.)
  • Page 38: Instrument Panel And Controls

    (5) Hazard light switch................. 34 (2) DPF INHIBIT switch............... 47 (6) Stationary PTO switch [Manual transmission type] ....... 79 (3) Head light switch................34 (6) Stationary PTO switch [HST type] ..........80 (4) Turn signal light switch..............34 (7) Key switch..................35 L3302,L3902...
  • Page 39 (5) Water separator filter indicator............35 (13) Fuel gauge..................71 (6) Turn signal / hazard light indicator ..........34 (14) Hour meter..................72 (7) Master system warning indicator ........... 70 (15) Tachometer ..................73 (8) Regeneration indicator..............47 (16) Coolant temperature gauge ............72 L3302,L3902...
  • Page 40: Head Light Switch

    Hazard light switch 1. When you push the hazard-light switch, the hazard lights flash along with the turn-signal / hazard-light indicator on the instrument panel. 2. When you push the hazard-light switch again, the hazard lights turn off. L3302,L3902...
  • Page 41: Key Switch

    (See Checking the water separator on page 102) IMPORTANT : • Daily checks only with the Easy Checker, are not sufficient. Never fail to conduct daily checks carefully according to DAILY CHECK on page 101. L3302,L3902...
  • Page 42: Foot Controls And Hand Controls

    (5) 3-point hitch lowering speed knob ..........85 (14) Differential lock pedal ..............75 (6) Front wheel drive lever ..............39 (15) Position control lever ..............85 (7) Synchro-shuttle shift lever ............. 42 (16) Cup holder (8) Seat belt..................40 (1) Tool box L3302,L3902...
  • Page 43: Foot Controls And Hand Controls [Hst Type]

    (11) Position control lever ..............85 (5) Seat belt..................40 (12) PTO clutch control switch .............. 78 (6) Cruise control lever (if equipped)........... 43 (13) 3-point hitch lowering speed knob ..........85 (7) Operator's seat ................40 (14) Cup holder (1) Tool box L3302,L3902...
  • Page 44: Hand Throttle Lever

    • Use individual brakes to assist in turning sharply at slow speeds, but only if you operate on field. Disengage the brake-pedal lock and depress only 1 brake pedal. • Be sure that the brake pedals have equal adjustment when being locked together. (1) Parking brake indicator L3302,L3902...
  • Page 45: Front Wheel Drive Lever

    (B) Off 5. Front wheel drive lever Use the front wheel-drive lever to engage the front wheels with the tractor stopped. WARNING To avoid personal injury or death: • Do not engage the front-wheel drive when traveling at road speed. L3302,L3902...
  • Page 46: Seat Belt

    (C) Increasing tension • Suspension adjustment Turn the suspension-adjust handle to achieve the optimum suspension setting. IMPORTANT : • After adjusting the operator's seat, ensure the operator's seat is properly locked. • Position the suspension-adjust handle at the horizontal position. L3302,L3902...
  • Page 47: Clutch Pedal [L3302 Manual Transmission Type]

    (B). cover before raising the seat. Hitting the loader valve cover with the armrest may causes damage to the loader valve cover. 8. Clutch pedal [L3302 Manual transmission type] WARNING To avoid personal injury or death: • The sudden release of the clutch may cause the tractor to lunge in an unexpected manner.
  • Page 48: Foot Throttle [Manual Transmission Type Only]

    To avoid personal injury or death: • Do not operate the tractor if it moves on level ground with foot off of the speed-control pedal. • Consult your local Kubota Dealer. • Forward pedal Depress the speed-control pedal with the toe of...
  • Page 49: Range Gear Shift Lever (L-M-H) [Hst Type Only]

    (2) Speed control pedal forward operating speed by mechanically holding the (3) Brake pedal cruise-control lever at the selected position. NOTE : • Cruise-control device does not operate in reverse. • Preferably set the cruise-control lever, while holding down the speed-control pedal. L3302,L3902...
  • Page 50: How To Use The Cruise Control Lever (If Equipped) [Hst Type Only]

    • When you stand up from the operator's seat with the speed-control pedal depressed or the cruise-control lever engaged, the engine will stop regardless of whether the tractor is moving or not. This is because the tractor is equipped with operator presence control system (OPC). L3302,L3902...
  • Page 51: Pre-Operation Check

    • Checking the seat belt and the ROPS • Checking the movable parts • Refueling (See Checking the fuel tank and refueling on page 101) • Caring for the safety labels (See Care for safety labels on page 20) L3302,L3902...
  • Page 52: Operating The Engine

    • If any engine oil other than CJ-4 or better quality is used, the DPF may become clogged muffler earlier than expected and the fuel economy may This tractor is equipped with an engine with a diesel- drop. particulate filter (DPF) muffler that serves to reduce L3302,L3902...
  • Page 53: Dpf Regeneration Process

    With regeneration-inhibit mode on, the PM that has accumulated inside the DPF will not be burnt, unless the operator performs the regeneration work manually. The regeneration-inhibit mode is effective for work in poorly ventilated work spaces. L3302,L3902...
  • Page 54: Operating The Engine To Regenerate The Dpf For Auto Regeneration Mode

    IMPORTANT : • Once the regeneration level has been reached, immediately perform the required procedure for regeneration. Interrupting the regeneration cycle or continuing operation while ignoring the warning signs may cause DPF and engine damage. L3302,L3902...
  • Page 55 4. Immediately move the tractor to a safe place, park it there, and turn the engine “OFF.” Sounding every The engine-warning indicator Contact your local Kubota Dealer. 50 % 1 second remains constantly “ON.” • At PM-warning level 4, do not continue to operate the tractor.
  • Page 56: Operating The Engine To Regenerate The Dpf For Regeneration Inhibit Mode

    IMPORTANT : • Once the regeneration level has been reached, immediately perform the required procedure for regeneration. Interrupting the regeneration cycle or continuing operation by ignoring the warning signs may cause DPF and engine damage. L3302,L3902...
  • Page 57 If the regeneration cycle is interrupted or the tractor is continuously operated ignoring the warning signs in the PM-warning level 3, DPF system becomes in the PM-warning level 4. Immediately move the tractor to a safe place, park it there, and turn the engine “OFF.” Contact your local Kubota Dealer. Sounding every The engine-warning indicator 50 % •...
  • Page 58: Operating The Engine To Regenerate The Dpf For Parked Regeneration

    (PM) inside the DPF is consumed and more accumulation of PM will occur, which starts flashing. requires frequent regeneration. Therefore, avoid prolonged idling if possible. 9. Press the parked-regeneration switch to start the regeneration cycle. L3302,L3902...
  • Page 59: Starting The Engine [Manual Transmission Type]

    (1) Main gear shift lever (A) Forward (2) Synchro-shuttle shift lever (B) Neutral position (C) Reverse (1) Brake pedal (2) Parking brake lever NOTE : • The parking-brake indicator in the Easy Checker comes on while the parking brake is applied. L3302,L3902...
  • Page 60 • Turn on the key switch, and some of the indicators on the instrument panel stay on about 1 second. (1) Hand throttle lever (A) Increase (2) Foot throttle (B) Decrease 7. Insert the starter key into the key switch and turn it “ON.” L3302,L3902...
  • Page 61: Starting The Engine [Hst Type]

    (See Setting the parking brake on page 39 if the parking brake is not set) NOTE : • Depress the both brake pedals together, and cruise-control lever automatically returns to the “OFF” position. (1) Brake pedal (2) Parking brake lever L3302,L3902...
  • Page 62 (See PTO clutch control switch [HST type] on page “ON.” (1) Key switch (A) Off (1) PTO clutch control switch (A) On (B) On (B) Off (C) Start 6. Set the position-control lever in the “FLOAT” position. The “FLOAT” position is the lowest position of position-control lever. L3302,L3902...
  • Page 63: Starting The Engine In Cold Weather

    If the engine fails to start after keeping the starter key preheat position for 10 seconds, turn off the 1. Take the following steps of the procedure in the starter key for 30 seconds. Then repeat step 2. and Starting the engine section. step 3. L3302,L3902...
  • Page 64: Antifrost Heater For Oil Separator (If Equipped)

    (-14 ℉ to -4 ℉) to the “OFF” position. Below -20 ℃ (-4 ℉) More than 30 minutes 2. Remove the starter key. NOTE : • If the starter key does not stop the engine, consult your local Kubota Dealer. L3302,L3902...
  • Page 65: Jump Starting The Engine

    See the steps in order of step d., step c.,step b., and step a in step 4. (1) Dead battery (3) Helper battery (2) Jumper cables 1. Bring the helper vehicle with a battery of the same voltage as the disabled tractor within easy cable reach. L3302,L3902...
  • Page 66: Operating The Tractor

    Do not operate the tractor at fast speed. and attachments. The preceding precautions are not limited only to new If interference occurs, contact your Kubota tractors, but to all tractors. But you should especially Dealer. follow the preceding precautions in the case of new tractors.
  • Page 67: Raising The Rops To Upright Position (If Equipped)

    3. Adjusting the foldable ROPS (if equipped) (1) Set bolt (2) Hair pin cotter 1. Adjust free fall of the ROPS upper frame regularly. 2. Raising the ROPS to upright position (if equipped) 1. Remove both the hair-pin cotters and the set bolts. L3302,L3902...
  • Page 68: Starting The Tractor [Manual Transmission Type]

    PTO gear-shift lever in the “OFF” position before starting the engine. (1) Travel adjust lever (A) Unlock (2) Suspension adjust lever (B) Decreasing tension (C) Increasing tension • Adjust the seat belt. (See Seat belt on page 40) L3302,L3902...
  • Page 69 (See Hazard light switch and turn signal light switch on page 34) (1) Brake pedal (A) Lock (2) Brake pedal lock (B) Release (1) Turn signal light switch (4) Turn signal / hazard light in- (2) Head light switch dicator (3) Hazard light switch L3302,L3902...
  • Page 70 • Set the forward speed and the reverse speed by • [L3302] engaging the main gear-shift lever, range gear- See Clutch pedal [L3302 Manual transmission shift lever, and the synchro-shuttle shift lever. type] on page 41. (See Main gear shift lever and range gear shift •...
  • Page 71: Starting The Tractor [Hst Type]

    STARTING THE TRACTOR [HST posture and minimizes risks from whole body vibration. TYPE] 1. Adjust the operator's position. • Adjust the operator's seat. (See Operator's seat on page 40) L3302,L3902...
  • Page 72 (1) Rear turn signal / hazard (2) Tail light (1) Brake pedal (A) Lock light (2) Brake pedal lock (B) Release • Check the head light. (See Head light switch on page 34) • Check the front and rear turn signal / hazard light. L3302,L3902...
  • Page 73 (2) Range gear shift lever (3) Cruise control lever • Set the gear by engaging the range gear-shift lever. (See Range gear shift lever (L-M-H) [HST type only] on page 43) (1) Hand throttle lever (A) Increase (B) Decrease L3302,L3902...
  • Page 74: Stopping The Tractor [Manual Transmission Type]

    • Set the proper forward speed by applying the cruise-control lever. (1) Clutch pedal (See Cruise control lever (if equipped) [HST type only] on page 43 and How to use the cruise control lever (if equipped) [HST type only] on page 44) (1) Brake pedal L3302,L3902...
  • Page 75: Stopping The Tractor [Hst Type]

    (C) Up 1. Slow down the engine. 5. Shift the transmission to the “NEUTRAL” position. 2. Depress the brake pedal. (See Main gear shift lever and range gear shift lever [Manual transmission type only] on page 41) (1) Brake pedal L3302,L3902...
  • Page 76: Check During Driving

    If the warning-indicator lamps in the Easy Checker come on during operation of the tractor, immediately stop the engine, and find the cause as the following table. Never operate the tractor while the warning-indicator lamps in the Easy Checker is “ON.” L3302,L3902...
  • Page 77: Fuel Gauge

    Easy Checker tem or consult your local Kubota Dealer. comes on, the engine may have got (Continued) overheated. Check the tractor accord- ing to ENGINE TROUBLESHOOTING on page 133.
  • Page 78: Coolant Temperature Gauge

    • If the indicator of the coolant-temperature gauge reaches the position at “RED ZONE,” engine coolant is overheated. Check the tractor according to Dealing with overheated coolant temperature on (1) Hour meter page 72 and ENGINE TROUBLESHOOTING on page 133. L3302,L3902...
  • Page 79: Tachometer

    IMPORTANT : • If the CCV freezing warning system is activated, stop the engine and consult your local Kubota Dealer immediately. Otherwise the engine oil may spout and in the worst case the engine is damaged then needs to replaced.
  • Page 80 2. Lower all implements to the ground. (See Position control of 3-point hitch mounted implement on page 85) (1) Brake pedal (2) Parking brake lever 5. Stop the engine. (See STOPPING THE ENGINE on page 58) 6. Remove the starter key. L3302,L3902...
  • Page 81: Techniques For Operating The Tractor

    Be sure that the SMV emblem, the tail lamps, and hazard lights are clean and visible. If towed or rear- mounted equipment obstructs these safety devices, install the SMV emblem, the tail lamps, and hazard lights on equipment. Consult your local Kubota Dealer for further details. L3302,L3902...
  • Page 82: Precautions For Operating The Tractor On Slopes And Rough Terrain

    • Carry the tractor on a truck if the tractor is damaged. Secure the tractor tightly with ropes. • Follow the instruction as follows when towing the tractor. Otherwise, powertrain of the tractor may get damaged. – Set the all shift levers to their “NEUTRAL” position. L3302,L3902...
  • Page 83: Trailer Electrical Outlet

    For use with accessory (2) Accessory electrical outlet 2 (3) Accessory electrical outlet 3 10 A Electrical outlet (2)+(3) Maximum 35 W 7. Trailer electrical outlet A trailer-electrical-outlet is supplied for use with trailer or implement. (1) Trailer electrical outlet L3302,L3902...
  • Page 84: Power Take-Off (Pto)

    (B) Turn clockwise the tachometer board. (C) Off • Tractor engine will not start if the PTO gear-shift (D) On lever is in the engaged (“ON”) position. • To turn “OFF” Tap on top of the PTO clutch-control switch. L3302,L3902...
  • Page 85: How To Use The Stationary Pto [Manual Transmission Type]

    PTO system in the procedure in this section. 1. Apply the parking brakes and set blocks at the tires. (See Setting the parking brake on page 39) (1) PTO gear shift lever (A) On (engage) (B) Off (disengage) L3302,L3902...
  • Page 86: How To Use The Stationary Pto [Hst Type]

    Release the clutch pedal and start the tractor. (1) Stationary PTO switch (1) Clutch pedal 4. Set the PTO clutch-control switch to engage “ON.” (See PTO clutch control switch [HST type] on page L3302,L3902...
  • Page 87: Pto Shaft Cover And Pto Shaft Cap

    (1) PTO shaft cover (A) Normal position (2) PTO shaft cap (B) Raised position IMPORTANT : • The universal joint of the PTO-drive shaft is technically limited in its moving angle. Refer to the PTO Drive Shaft Instructions for proper use. L3302,L3902...
  • Page 88: 3-Point Hitch And Drawbar

    OVERVIEW OF THE 3-POINT HITCH AND DRAWBAR 3-POINT HITCH AND DRAWBAR OVERVIEW OF THE 3-POINT HITCH AND DRAWBAR (1) Top link (3) Check chains (5) Lower link (7) Lower link holder (2) Lifting rod (left) (4) Turn buckle (6) Lifting rod (right) (8) Drawbar L3302,L3902...
  • Page 89: 3-Point Hitch

    Hydraulic control unit use reference chart on page 2.2 Adjusting the lifting rod (right) 1. Level a 3-point mounted implement from side to side by turning the adjusting handle with 3-point mounted implement on the ground. 2. Shorten or lengthen the adjustable lifting rod. L3302,L3902...
  • Page 90: Adjusting The Top Link

    2.5 Dealing with the lower link holder 1. Holds the lower links with the lower-link-holder. When operating the tractor without an implement, it is necessary to lock the lower links to prevent them from hitting the rear wheels of the tractor. L3302,L3902...
  • Page 91: Hydraulic Unit

    Unless corrected, hydraulic unit will be damaged. Contact your Kubota Dealer for adjustment. 3-POINT HITCH CONTROL SYSTEM WARNING To avoid personal injury or death: • Before using the 3-point hitch controls, make...
  • Page 92: Auxiliary Hydraulics

    (1) Hydraulic block type outlet (A) From gear pump (B) To implement (C) From implement (outlet) (D) From implement (tank port) 25.7 L/min Maximum flow (6.8 gals./min) (B) To implement 16.2 MPa Maximum pressure (165 kgf/cm [2347 psi.] L3302,L3902...
  • Page 93: Hydraulic Control Unit Use Reference Chart

    Sub-soiler position. Weeder and ridger - With implements with Earthmover, digger, gauge wheels, lower scraper, manure fork, Yes/no Tighten the position-control-lev- - and rear carrier er all the way. Mower (mid mount type - and rear mount type) L3302,L3902...
  • Page 94: Tires, Wheels, And Ballast

    • Fix the front axle to keep it from pivoting. 27 × 8.50-15, 6PR (2.1 kgf/cm (3.2 kgf/cm • Select the jacks that withstand the machine [30 psi.] [45 psi.] weight and set them up as shown in the (Continued) following figure. L3302,L3902...
  • Page 95: Rear Wheels

    Tightening torque (14 kgf⋅m) [100 lbf⋅ft] Then recheck after driving the tractor as follows, and thereafter according to SERVICE INTERVALS on page 93. 200 m (200 yards) and 10 times of shuttle Driving tractor movement by 5 m (5 yards) L3302,L3902...
  • Page 96: Adjusting The Rear Wheels

    1. Remove the bolts that mount the wheel rim and/or disk. 2. Change the position of the rim and/or disk on right and left sides to the desired position. 15-19.5 R4 In- 1145 mm dustrial, R14 (45.1 in.) Hybrid (1) Tread (Continued) L3302,L3902...
  • Page 97: Ballast

    • Always attach the tires as shown in the Refer to your implement operator's manual for required following figure. number of weights or consult your local Kubota Dealer • If you do not attach the rear wheel as the to use it.
  • Page 98: Liquid Ballast In Rear Tires

    [Approx. 2.25 kg (5 lbs.) CaCl (253 lbs.) (353 lbs.) 4 L (1 gal) of water] IMPORTANT : • Do not fill tires with water or solution more than 75 % of full capacity to the level of valve stem at 12 o'clock position. L3302,L3902...
  • Page 99: Maintenance

    • Perform the jobs indicated by ◎ after the first 50 hours of operation. • The items that are @ marked are registered as the emission related-critical parts by Kubota in the U.S.EPA nonroad emission regulation. As the engine owner, you are responsible for the performance of the required maintenance on the engine according to the instruction in this table.
  • Page 100 1 year year Oil cooler line [HST] Every 4 Replace 4 year year Every 1 Check 1 year year Radiator hose and clamp Every 4 Replace 4 year year Every 1 Check 1 year @ Intake air line year (Continued) L3302,L3902...
  • Page 101 Clean the air cleaner more often in dusty conditions than in normal conditions. Every 1000 hours or every 1 year, whichever comes first. Consult your local Kubota Dealer for this service. Every 2000 hours or every 2 years, whichever comes faster.
  • Page 102: Lubricants, Fuel, And Coolant

    Tie rod end Top link NOTE : • The product name of Kubota genuine UDT fluid may be different from that in the Operator’s Manual depending on countries or territories. Consult your local Kubota Dealer for further details. Engine oil •...
  • Page 103 For an enhanced ownership experience, we highly recommend Super UDT-2 to be used instead of standard hydraulic/transmission fluid. Super UDT-2 is a proprietary Kubota formulation that delivers superior performance and protection in all operating conditions. Regular UDT is also permitted for use in this machine.
  • Page 104: Biodiesel Fuel (Bdf)

    (B6 - B20) which comply with American Society for conditions. Testing and Materials (ASTM) D7467 Standard, as 8. The Kubota Warranty, as specified in the Owner's revised, can be used without adversely affecting the Warranty Information Guide, only covers defects in performance and durability of the engine and fuel product materials and workmanship.
  • Page 105 Fuel line damage occurred. Consult your local Replace Every 2 years KUBOTA Dealer for this service. Long Term Storage: 1. BDF easily deteriorates due to oxygen, water, heat and foreign substances. Do not store B6 thru B20 longer than 1 month and B5 longer than 3 months.
  • Page 106: Periodic Service

    Please dispose properly. See your local recycling center or KUBOTA Dealer to learn how to recycle or get rid of waste products. HOOD AND ENGINE SIDE COVER...
  • Page 107: Daily Check

    1. Park the machine on firm and level ground. 2. Set the parking brake. 3. Lower the implement to the ground. 4. Release all residual pressure from the hydraulic system. 5. Stop the engine and remove the key. L3302,L3902...
  • Page 108: Checking Antifrost Heater For Oil Separator (If Equipped)

    70 ℃ (158 ℉), so you will be able to feel its warmth. • If the heater is not working, it is not warm. In this case, contact your local Kubota Dealer without starting the engine. (1) Antifrost heater 2.
  • Page 109: Checking The Engine Oil Level

    DPF, may get mixed with the engine oil and the engine oil may Check the engine oil before starting the engine or 5 increase in volume. minutes or more after the engine has stopped. L3302,L3902...
  • Page 110: Checking The Transmission Fluid Level

    • Do not remove the radiator cap while the coolant is hot. When the coolant is cool, slowly rotate the radiator cap to the first stop and allow sufficient time for excess pressure to escape before removing the radiator cap completely. L3302,L3902...
  • Page 111: Cleaning The Evacuator Valve

    • Use clean, fresh, soft water and antifreeze to fill the radiator. • If coolant should leak, consult your local Kubota Dealer. (See Flushing the cooling system and changing the coolant on page 121) 8. Cleaning the evacuator valve 1.
  • Page 112: Checking The Dpf Muffler

    2. Adjust the brake pedals or clutch pedal if incorrect measurement is found. (1) Oil cooler [HST type] (2) Fuel cooler • [L3302 Manual transmission type and HST type] See Adjusting the brake pedal on page 113 and 10. Checking the DPF muffler Adjusting the clutch pedal with single clutch [L3302 Manual transmission type] on page 112.
  • Page 113: Checking The Head Light, The Turn Signal / Hazard Light, And The Tail Light

    DAILY CHECK  PERIODIC SERVICE 13. Checking the head light, the turn Consult your Kubota Dealer regarding maintenance, diagnosis, and repair. signal / hazard light, and the tail light 1. Inspect the lights such as the head light, the turn 16. Checking the movable parts signal / hazard light, and the tail light for broken bulbs and lenses.
  • Page 114: Service Every 50 Hours

    (2) Pedal shaft 2. When applying the grease to the both front-axle supports, apply grease until the grease overflows from the breather port. (1) Battery terminals (1) Grease fitting (3) Breather port (2) Front axle support (1) Grease fitting (2) Tie-rod L3302,L3902...
  • Page 115: Checking The Engine Start System [Manual Transmission Type]

    6. Make sure that the engine does not crank. 6. Make sure that the engine does not crank. 7. If the engine cranks, consult your local Kubota 7. If the engine cranks, consult your local Kubota Dealer for servicing the speed-control pedal.
  • Page 116: Checking The Operator Presence Control

    2 second. control 6. If the engine does not stop, consult your local Check if the engine shuts off when you stand up from Kubota Dealer for servicing the operator's seat. the operator's seat. 5. Checking the wheel bolt torque WARNING To avoid personal injury or death: •...
  • Page 117: Adjusting The Fan Belt Tension

    (B) To tighten is damaged or not. 4. Replace the fan belt if it is damaged. Refer to the instructions on the label attached to the case. 5. Replace the air-cleaner element. L3302,L3902...
  • Page 118: Checking The Fuel Grommet

    4. Retighten the lock nut. (1) Fuel grommet 4. Adjusting the clutch pedal with single clutch [L3302 Manual transmission type] 1. Stop the engine and remove the starter key. 2. Slightly depress the clutch pedal and measure the free travel at the top stroke of the clutch pedal.
  • Page 119: Adjusting The Brake Pedal

    The original battery is maintenance free, but needs some servicing. If the battery is weak, the engine will be difficult to start and the lights will be dim. It is important to check the battery periodically. L3302,L3902...
  • Page 120 Volts (V) capacity charging (min) rate (A) (1) Negative cable (3) Terminal (2) Positive cable (4) Stopper [Manual transmis- Charging the battery sion type] 75D23R WARNING [HST type] 80D26R To avoid personal injury or death: CCA means Cold cranking ampere. L3302,L3902...
  • Page 121: Service Every 200 Hours

    IMPORTANT : • To prevent serious damage to the hydraulic system, use only a Kubota genuine filter. 1. Set the oil pan underneath the transmission-oil filter and remove the transmission-oil filter. Do not remove the hydraulic-oil filter. Otherwise, the oil comes out.
  • Page 122: Adjusting The Toe-In

    1. Loosen the lock nuts. 2. Turn the turnbuckle to adjust the length of tie rod until the proper toe-in measurement is obtained. 3. Retighten the lock nuts. (1) Drain plug 2. After draining the engine oil, reinstall the drain plug. L3302,L3902...
  • Page 123: Replacing The Engine Oil Filter

    To avoid personal injury or death: • To prevent serious damage to the hydraulic • Be sure to stop the engine and remove the system, use only a Kubota genuine filter. starter key before changing the engine-oil filter cartridge. 1. Remove the drain plugs at the bottom of the •...
  • Page 124 6. Quickly tighten the hydraulic-oil filter until it contacts oil again. the mounting surface, then tighten it by hand only an additional 1/2 turn. 7. Fill with the new Kubota SUPER UDT fluid from the oil inlet up to the upper notch on the dipstick. L3302,L3902...
  • Page 125: Replacing The Fuel Filter

    4. Tighten the fuel filter by hand only an additional 1/2 turn. 5. Bleed the fuel system. (See Bleeding the fuel system on page 127) (1) Water sensor connector (A) Close (2) Fuel shutoff-valve (3) Cup (4) Element L3302,L3902...
  • Page 126: Service Every 600 Hours

    8. Reinstall and tighten the oil level-check plug and the filling plug. 1. To drain the used front axle-case oil, remove the right and left drain plugs and filling plug at the front- axle case and drain the front axle-case oil completely into the oil pan. L3302,L3902...
  • Page 127: Adjusting The Engine Valve Clearance

    2. Checking the positive crankcase clearance ventilation (PCV) valve Consult your local Kubota Dealer for adjusting the Consult your local Kubota Dealer for checking the PCV clearance of the engine valve. valve. SERVICE EVERY 1000 HOURS 3. Checking and cleaning the EGR...
  • Page 128: Antifreeze

    Always use a 50/50 mix of long-life coolant and clean, soft water in Kubota engines. Consult your local Kubota Dealer concerning coolant for extreme conditions. • Long-life coolant (LLC) comes in several types. Use ethylene glycol (EG) type for this engine.
  • Page 129: Service Every 3000 Hours

    2. If the hoses and the hose clamps are found worn or • Service life of Kubota genuine long-life coolant is 2 damaged, replace or repair them at once. years. Be sure to change the coolant every 2000 hours or every 2 years whichever comes faster.
  • Page 130: Checking The Intake Air Line

    2. If hose clamps are loose or water leaks, tighten the bands securely. (1) Power steering pressure ho- 5. Checking the oil cooler line [HST type only] WARNING (1) Radiator hoses (2) Clamp bands To avoid personal injury or death: L3302,L3902...
  • Page 131: Checking The Oil Separator Hose

    1. Check to see that all hoses and hose clamps are tight and not damaged. Consult your local Kubota Dealer for checking the DPF- 2. If hoses and hose clamps are found worn or differential pressure-sensor pipe.
  • Page 132: Checking The Ccv Pressure Switch

    (2) Clamp bands (1) Pressure switch cover (2) CCV pressure switch SERVICE EVERY 2 YEARS 1. Replacing the fuel grommet Consult your local Kubota Dealer for replacing the fuel (1) Radiator hoses (2) Clamp bands grommet. 2. Replacing the fuel line 2.
  • Page 133: Replacing The Power Steering Hose [Manual Transmission Type Only]

    5. If the engine does not start, try step 4. several times at 30 second intervals. hose [Manual transmission type only] IMPORTANT : • Do not hold the key switch at “START” Consult your local Kubota Dealer for replacing the position more than seconds power-steering hose.
  • Page 134: Replacing The Slow-Blow Fuses

    ENGINE Fuse No. Capacity (A) Protected circuit TROUBLESHOOTING on page 133 or your local Kubota Dealer for specific information dealing Flasher (Battery) with electrical problems. Hazard (Battery) The electrical system of the tractor is protected from CCV heater (IG) potential damage by fuses.
  • Page 135: Replacing The Light Bulb

    Also, replace the fuel lines every 4 years regardless of the condition. 6. Replacing the LED light Consult your local Kubota Dealer for replacing the fuel 1. If the LED head light or the side work led light is no lines.
  • Page 136: Replacing The Power Steering Line If Required [Manual Transmission Type Only]

    Replace the oil-cooler line if any deterioration such as crack, hardening, scar, or deformation, or damage occurred. Also, replace the oil-cooler line every 4 years regardless of the condition. Consult your local Kubota Dealer for replacing the oil- cooler line. 12. Replacing the oil separator hose if required...
  • Page 137: Storage Of The Tractor

    An armrest kit is available as an option from your dealer. If you intend to raise the seat with the front loader and optional armrest attached, raise the armrest to avoid contact with the loader valve cover before raising the seat. L3302,L3902...
  • Page 138: Removing The Tractor From Storage

    • Engine oil • Transmission oil and hydraulic oil • Engine coolant • Implement if any fluid is used 7. Start the engine. Check all gauges. 8. If all gauges are functioning properly and reading normal, follow the following procedure. L3302,L3902...
  • Page 139: Troubleshooting

    Adjust or replace the fan belt. • Dirty radiator core grille • Remove all trash. screens • Coolant flow route corroded. • Flush the cooling system. If there are any questions about the engine, consult your local Kubota Dealer. L3302,L3902...
  • Page 140: Engine Error Code

    “P” “U” and Meter) display. If the error code appears, please contact your CAN communication local Kubota Dealer for repairs immediately. E-21 trouble (Engine ECU and Main ECU) Meter's part code and ECU model set-...
  • Page 141: Options

    OPTION ITEMS  OPTIONS OPTIONS OPTION ITEMS Consult your local Kubota Dealer for further details of the following options: • Engine block heater For extremely cold weather starting • Front end weights For the front ballast • Front bumper • Rear wheel weights For the rear ballast •...
  • Page 142: Index

    [L3302 manual 3-point hitch control system transmission type]......... 112 precautions............85 L3302 manual transmission type......41 3-point hitch implement L3902 manual transmission type......41 precautions for attaching........83 coolant.................96 precautions for removing........83 changing..............121 3-point hitch mounted implement checking level............104 float control............85...
  • Page 143 [HST type] allocation............... 37 hand controls [manual transmission type] allocation............... 36 fan belt hand throttle lever adjusting tension..........111 function..............38 flipping the seat with front loader......131 head light foldable ROPS (if equipped) checking.............. 107 adjusting..............61 head light switch............34 folding..............60 L3302,L3902...
  • Page 144 91 key switch..............35 option items...............135 L3302 manual transmission type parking brake checking clutch pedal with single clutch....112 setting and releasing..........38 clutch pedal............41 parking the tractor............73 L3902 manual transmission type pedal checking clutch pedal with dual clutch....
  • Page 145 107 transmission fluid level outline..............40 checking.............. 104 service intervals............93 transmission oil single element type warming up in the low temperature range.....58 replacing air cleaner element......121 transmission oil filter [HST type only] slow-blow fuses replacing..............115 replacing..............128 L3302,L3902...
  • Page 146 27 troubleshooting engine..............133 turn signal / hazard light checking.............. 107 turn signal light switch..........34 waste disposal............... 100 water separator checking.............. 102 cleaning............... 119 wheel checking bolt torque..........110 precaution for adjustment........88 L3302,L3902...

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