Kubota LX2620 Operator's Manual
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Kubota LX2620 Operator's Manual

Kubota LX2620 Operator's Manual

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Printed in Japan
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6
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English (U.S.A.)
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Code No. 6C820-6311-2
©
2023 Kubota Corporation
OPERATOR'S MANUAL
MODELS
1BMPA00001A01
READ AND SAVE THIS MANUAL
LX2620 LX2620SU
1BMPA00002A01

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  • Page 1 OPERATOR'S MANUAL LX2620 LX2620SU MODELS   English (U.S.A.) 1BMPA00001A01 1BMPA00002A01 Code No. 6C820-6311-2 READ AND SAVE THIS MANUAL Printed in Japan © 2023 Kubota Corporation...
  • Page 2 Other states or federal areas may have similar laws. Canadian Electromagnetic Compatibility (EMC): This machine complies with Industry Canada ICES-002. LX2620, LX2620SU BC . B . 2 - 3 . 0 . AK...
  • Page 3 PTO - on (engaged) Engine - run Hydraulic-related Engine - start Position control - raised position Engine - stop Position control - lowered position Diesel preheat / glow plugs (low temperature start aid) 3-point lowering speed control Remote cylinder - retract LX2620,LX2620SU...
  • Page 4 Remote cylinder - extend Remote cylinder - float Electric-related Battery charging condition Headlight Work light Turn signal Hazard warning lights Audible warning device Front wiper/washer switch Rear wiper/washer switch Rear window defroster LX2620,LX2620SU...
  • Page 5 LX2620,LX2620SU...
  • Page 6 (The German Association of the Automotive Industry). 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 symbols (®, ™). LX2620,LX2620SU...

  • Page 7: Table Of Contents

    10. Front wheel drive lever ..........................54 10.1 Front-wheel drive (4WD) usage ....................... 54 11. Hand throttle lever............................ 54 12. Speed control pedal..........................55 13. Speed set lever [LX2620 ROPS model only]................... 55 14. Cruise control lever [LX2620 CAB model only] ..................56 LX2620,LX2620SU...
  • Page 8 PTO ............................64 PTO OPERATION............................... 64 1. PTO select lever [except LX2620SU] ......................64 2. PTO clutch lever [LX2620]......................... 65 3. PTO clutch lever [LX2620SU]........................65 4. LCD monitor message ..........................66 5. PTO shaft cover and shaft cap ........................66 6.
  • Page 9 1. Biodiesel fuel (BDF) B0-B20........................97 PERIODIC SERVICE .........................99 WASTE DISPOSAL ............................99 HOW TO OPEN THE HOOD ..........................99 1. Hood ................................99 1.1 Opening the hood..........................99 1.2 Closing the hood ..........................100 2. Engine side cover ............................ 100 LX2620,LX2620SU...
  • Page 10 EVERY 2000 HOURS OR 2 YEARS ........................ 118 1. Flushing cooling system and changing coolant ..................118 2. Antifreeze ..............................119 EVERY 3000 HOURS ............................120 1. Checking injection pump ......................... 120 EVERY 1 YEAR ..............................120 1. Checking the radiator hoses and clamps ....................120 LX2620,LX2620SU...
  • Page 11 STORAGE..........................127 TRACTOR STORAGE ............................127 REMOVING THE TRACTOR FROM STORAGE....................127 TROUBLESHOOTING ......................128 ENGINE TROUBLESHOOTING ........................128 POWERTRAIN TROUBLE SHOOTING......................129 OPTIONS ..........................130 LIST OF OPTIONS ............................130 MOUNTING THE SUPPORT PLATE........................ 130 1. Installation procedures ..........................130 INDEX............................132 LX2620,LX2620SU...
  • Page 12 LX2620,LX2620SU...

  • Page 13: Safe Operation

    Replace worn or damaged parts promptly. Kubota and its affiliates are not liable for any Check the tightness of all nuts and bolts regularly. damage, malfunction or accidents caused by (See MAINTENANCE on page 93.)
  • Page 14 SAFE OPERATION 2. CAB and ROPS [CAB model] • Kubota recommends the use of a CAB or roll over protective structures (ROPS) and seat belt in almost all applications. This combination will reduce the risk of serious injury or death, should the tractor be upset.
  • Page 15 • To improve stability on slopes, set the widest • Whenever the tractor is operated in reverse, possible wheel tread. (See TIRES, WHEELS, AND BALLAST on page confirm visibility to the rear. 80.) Follow the recommendations for proper ballasting. LX2620,LX2620SU...
  • Page 16 • Do not operate an implement while the tractor is on the road. Lock the 3-point hitch in the raised position. • When towing other equipment, use a safety chain and place an SMV emblem on it as well. LX2620,LX2620SU...
  • Page 17 Failure to comply with this warning may allow the tractor to move and could cause injury or death. • Do not stop the machine on top of straw chaff or dried grass. LX2620,LX2620SU...
  • Page 18 [UPPER] and [LOWER] levels. • To avoid sparks from an accidental short circuit, always disconnect the battery's ground cable (-) first and reconnect it last. LX2620,LX2620SU...
  • Page 19 (AdBlue)), refrigerant, solvent, filters, rubber, batteries and harmful substances, can harm the environment, people, pets and wildlife. Please dispose of properly. See your local recycling center or Kubota dealer to learn how to recycle or get rid of waste products. LX2620,LX2620SU...
  • Page 20 SAFE OPERATION SAFETY LABELS LX2620,LX2620SU...
  • Page 21 SAFE OPERATION LX2620,LX2620SU...
  • Page 22 SAFE OPERATION LX2620,LX2620SU...
  • Page 23 SAFE OPERATION LX2620,LX2620SU...
  • Page 24 SAFE OPERATION LX2620,LX2620SU...
  • Page 25 SAFE OPERATION LX2620,LX2620SU...
  • Page 26 • Clean the safety labels with soap and water, 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) affixed is replaced with new part, make sure that the new label(s) is (are) attached in the same location(s) as the replaced component.

  • Page 27: Servicing Of Tractor

    However, when in need of parts or major service, see your Kubota dealer. For service, contact your local Kubota dealer. When in need of parts, be prepared to give your dealer the product identification number (PIN), the CAB/ROPS serial number, and the engine serial number.

  • Page 28: Warranty

    SCRAPPING THE TRACTOR AND ITS PROCEDURE To put the tractor out of service, follow the local rules and regulations of the country or territory where you scrap it. If you have questions, contact your local Kubota dealer. LX2620,LX2620SU...

  • Page 29: Specifications

    (53.7) 2245 Overall height (in.) (88.4) 1666 Dimensions Wheel base (in.) (65.6) Minimum ground clearance (in.) (14.6) Front (in.) (36.8) Tread 1050 Rear (in.) (41.3) Weight (lbs.) (1840) Clutch Not applicable Front 7-12 Traveling Tires system Rear 12.4-16 (Continued) LX2620,LX2620SU...
  • Page 30 (lbs.) (1676) Rear-PTO SAE 1-3/8, 6 splines 1 speed PTO / Engine speed 540 / 2398 USA No. 5 (Kubota 10-tooth) involute Mid-PTO － spline 1 speed PTO / Engine speed － 2500 / 2500 The company reserves the right to change the specifications without notice.

  • Page 31: Specification Table For Cab Model

    (2314) Clutch Not applicable Front 7-12 Tires Rear 12.4-16 Steering Hydrostatic type power steering Traveling Transmission Main-hydrostatic transmission, 3 range gear shift (3 forward, 3 reverse) system Brake Wet disk type Minimum turning radius (with brake) (feet) (6.9) (Continued) LX2620,LX2620SU...
  • Page 32 SAE 1-3/8, 6 splines 1 speed PTO / Engine speed 540 / 2398 Mid-PTO USA No. 5 (Kubota 10-tooth) involute spline 1 speed PTO / Engine speed 2500 / 2500 The company reserves the right to change the specifications without notice.

  • Page 33: Traveling Speeds

    0 to 6.9 0 to 4.3 0 to 6.9 0 to 4.3 High 0 to 14.6 0 to 9.1 0 to 14.6 0 to 9.1 At rated engine rpm The company reserves the right to change the specification without notice. LX2620,LX2620SU...

  • Page 34: Implement Limitations

    The tractor has been thoroughly tested for proper performance with implements sold or approved by Kubota. Using implements that are not sold or approved by Kubota, which exceed the maximum specifications listed in the following table, or which are otherwise unfit for use with the tractor may result in malfunctions or failures of the tractor, damage to other property and injury to the operator or others.

  • Page 35: Implement Specification Table

    IMPLEMENT SPECIFICATION TABLE  IMPLEMENT LIMITATIONS IMPLEMENT SPECIFICATION TABLE Implement Remarks LX2620 Max. cutting width mm (in.) 1830 (72) Mid-mount Max. weight kg (lbs.) 205 (451) Max. cutting width mm (in.) 1220 (48) Rotary-cutter (1 Blade) Max. weight kg (lbs.) 227 (500) Mower Max.

  • Page 36: Instrument Panel And Controls

    (6) Display switch (Engine rpm, PTO speed) ........58 (2) Turn signal light switch..............51 (7) Hand throttle lever ................. 54 (3) Headlight switch................50 (8) Stationary PTO ................66 (4) Parking brake lever................ 52 (9) Key switch..................40 (5) Speed set lever [except LX2620SU]..........55 LX2620,LX2620SU...
  • Page 37 (14) Hand throttle lever ................. 54 (7) Headlight switch................50 (15) Hazard light switch................. 51 (8) Parking brake lever................ 52 (16) Key switch..................40 NOTE : • See the following figure for beacon connector. [LX2620HSDCC only] (1) Beacon connector LX2620,LX2620SU...

  • Page 38: Instrument Panel

    (6) Engine oil pressure warning indicator..........57 Hazard light indicator ..............51 (7) Engine overheat warning indicator ..........57 (3) Electrical charge warning indicator ..........57 (8) Glow plug indicator ................ 40 (4) Parking brake warning indicator ............ 40 LX2620,LX2620SU...

  • Page 39: Foot And Hand Controls

    (15) Front wheel drive lever ..............54 (7) PTO select lever [except LX2620SU] ..........64 (16) Position control lever ..............73 (8) Operator's seat ................48 (17) Remote control valve lever (if equipped) ........77 (9) Seat belt..................50 (18) Electrical outlet ................62 LX2620,LX2620SU...
  • Page 40 (6) PTO clutch lever ................65 (15) Position control lever ..............73 (7) PTO select lever ................64 (16) Cruise control lever................ 56 (8) Seat belt..................50 (17) Remote control valve lever (if equipped) ........77 (9) Operator's seat ................48 LX2620,LX2620SU...

  • Page 41: Pre-Operation Check

    • Check lights • Check wire harness • Check seat belt • Check ROPS and CAB • Check movable parts • Refuel (See Checking and refueling on page 100.) • Care of the safety labels (See SAFETY LABELS on page 18.) LX2620,LX2620SU...

  • Page 42: Operating The Engine

    (A) Interlock the brake pedals (B) Depress NOTE : (C) Pull up • When the parking brake is set while the key switch is “ON”, the parking brake warning indicator light on the Easy Checker will turn (1) Parking brake warning indicator LX2620,LX2620SU...
  • Page 43 “NEUTRAL” position. • [ROPS model] a. Place the speed set lever in “OFF” position. [except LX2620SU] b. Place the speed control pedal in the “NEUTRAL” position. c. Place the range gear shift lever in the “NEUTRAL” position. LX2620,LX2620SU...
  • Page 44 “NEUTRAL” position. (1) Position control lever (A) “LOWEST” position 4. Lock the loader control lever in the “LOCK” position. [ROPS model] [CAB model] (1) Loader control lever (A) “LOCK” (1) Position control lever (A) “LOWEST” position (2) Lock lever LX2620,LX2620SU...
  • Page 45 For the appropriate preheating time, see to following table. Temperature Preheating time Over 0 ℃ (32 ℉) 2 to 3 sec. 0 to -5 ℃ (32 to 23 ℉) 5 sec. -5 to -15 ℃ (23 to 5 ℉) 10 sec. LX2620,LX2620SU...

  • Page 46: Operating The Engine In Freezing Conditions

    “OFF” position. 2. Remove the key. NOTE : • If removing the key does not stop the engine, contact your local Kubota dealer. WARMING UP THE ENGINE (1) Key switch WARNING To avoid personal injury or death: •...

  • Page 47: Jump Starting

    7. Start the helper vehicle and let its engine run for a few moments. Start the disabled tractor. 8. Disconnect the jumper cables in the exact reverse order of attachment (steps 6, 5 and 4). Connect cables in numerical order. Disconnect in reverse order after use. LX2620,LX2620SU...

  • Page 48: Operating The Tractor

    For more details, read the maintenance section of this soon as possible. manual. • Before proceeding to fold the ROPS, check for (See MAINTENANCE on page 93.) possible interference with installed implements and attachments. If interference occurs, contact your Kubota dealer. LX2620,LX2620SU...

  • Page 49: Folding The Rops

    3. Insert both set bolts and secure them with the hair • Raise the ROPS slowly and carefully. pins. WARNING To avoid personal injury or death: • Make sure that both set bolts are properly installed and secured with the hair pins. LX2620,LX2620SU...

  • Page 50: Adjustment Of Foldable Rops

    9. Depress the speed control pedal. • Speed control pedal on page 55 3. Adjustment of foldable ROPS • Speed set lever [LX2620 ROPS model only] on page 55 1. Adjust free fall of the ROPS upper frame regularly. • Cruise control lever [LX2620 CAB model only] 2.
  • Page 51 STARTING THE TRACTOR  OPERATING THE TRACTOR [LX2620 ROPS model] [LX2620SU ROPS model] (1) Seat (A) Pull up (1) Seat (A) Pull in (2) Position adjust lever (2) Position adjust lever (3) Backrest tilt adjust lever Position adjustment Pull in the position adjust lever and slide the seat backward or forward, as required.

  • Page 52: Seat Belt

    Press down the steering wheel tilt pedal to release the [CAB model] lock, so that the steering wheel can be adjusted to the desired position. [ROPS model] (1) Headlight switch (A) “OFF” (B) “ON” (1) Steering wheel tilt pedal (A) Press down LX2620,LX2620SU...

  • Page 53: Turn Signal Switch And Hazard Light Switch

    “ON” position. (3) Hazard and turn signal indi- • The indicator in the hazard light switch will light cator up when the head light switch is turned on. • Return the turn signal switch to its center position after turning. LX2620,LX2620SU...

  • Page 54: Horn Button [Cab Only]

    (if equipped). • The braking characteristics different between 2 and 4-wheel drive. Be aware of the difference and use carefully. LX2620,LX2620SU...

  • Page 55: Range Gear Shift Lever (L-M-H)

    (1) Range gear shift lever (L) “LOW” (M) “MIDDLE” (1) Parking brake warning indicator (N) “NEUTRAL” position (H) “HIGH” 9. Range gear shift lever (L-M-H) The range gear shift can only be shifted when the tractor is completely stopped. LX2620,LX2620SU...

  • Page 56: Front Wheel Drive Lever

    [ROPS model] (1) Front wheel drive lever (A) “ON” (B) “OFF” [CAB model] (1) Hand throttle lever (A) Decrease (B) Increase (1) Front wheel drive lever (A) “ON” (B) “OFF” LX2620,LX2620SU...

  • Page 57: Speed Control Pedal

    • Do not operate if the tractor moves on level • the speed control pedal stepped on ground with the operators foot off of the speed • the speed set lever engaged (ON) [LX2620 control pedal. ROPS model only] • Contact your local Kubota dealer.

  • Page 58: Cruise Control Lever [Lx2620 Cab Model Only]

    • Preferably set the cruise control lever, while holding down the speed control pedal. This 14. Cruise control lever [LX2620 makes the setting smoother. CAB model only] • When releasing the cruise mode, return the cruise control lever fully backward.

  • Page 59: Stopping The Tractor

    7. Set the parking brake. Kubota dealer. CHECK DURING DRIVING Master system warning If the issue is not corrected by restarting the tractor, IMPORTANT : contact your local Kubota dealer. Immediately stop the engine if: • The engine suddenly slows...

  • Page 60: Coolant Temperature Gauge

    (1) Coolant temperature gauge 3.1 Overheating countermeasures Take the following actions in the event the coolant temperature is nearly at or over the boiling point, also called “overheating”. 1. Park the tractor in a safe place and keep the engine idling unloaded. LX2620,LX2620SU...

  • Page 61: Parking The Tractor

    PARKING THE TRACTOR WARNING (1) LCD monitor To avoid personal injury or death: (2) Display switch • Always set the parking brake, stop the engine and remove the key before leaving the tractor Engine rpm displayed seat. (1) Engine rpm LX2620,LX2620SU...

  • Page 62: Operating Techniques

    1. Differential lock • If the differential lock cannot be released, lightly depress the brake pedals alternately. WARNING To avoid personal injury or death due to loss of steering control: LX2620,LX2620SU...

  • Page 63: Operating The Tractor On A Road

    • Always back up when going up a steep slope. Contact your local Kubota dealer for further details. Driving forward could cause the tractor to tip over backward. Stay off hills and slopes too [ROPS model] steep for safe operation.

  • Page 64: Transporting The Tractor Safely

    • Avoid turning the steering wheel while the tractor is stopped, or tires may wear out sooner. • The power steering mechanism makes the steering easier. Be careful when driving on the road at high speeds. (1) Accessory electrical outlet (DC 12 V, MAX 120 W) LX2620,LX2620SU...
  • Page 65 OPERATING TECHNIQUES  OPERATING THE TRACTOR [CAB model] (1) Accessory electrical outlet (DC 12 V, MAX 120 W) LX2620,LX2620SU...

  • Page 66: Pto

    Mid PTO To use mid PTO, shift the PTO select lever to mid PTO position and the PTO clutch lever to the “ON” position. The mid PTO is available for Kubota approved implements. (1) PTO select lever (A) Rear-PTO position...

  • Page 67: Pto Clutch Lever [Lx2620]

    Engine speed 2398 rpm Shaft 6-spline PTO speed 540 rpm 2. PTO clutch lever [LX2620] IMPORTANT : (1) PTO clutch lever (A) “ON” “ENGAGE” • To avoid shock loads to the PTO, reduce engine (B) “OFF” “DISENGAGE” throttle from high idle to low idle by pushing up...

  • Page 68: Lcd Monitor Message

    3. Set the PTO select lever to “rear PTO” position. [except LX2620SU] 4. Push and hold the stationary PTO switch for more than 1 second and the switch light will turn on. (1) LCD monitor (2) PTO indicator (3) PTO speed LX2620,LX2620SU...
  • Page 69 5. Set the PTO clutch lever to “ON” position. 6. Set the engine speed to provide recommended rear PTO speed. 7. Get off the tractor. [ROPS model] (1) Seat (A) “ON” (2) Parking brake lever (B) “OFF” (3) PTO clutch lever (4) PTO select lever [except LX2620SU] LX2620,LX2620SU...

  • Page 70: 3-Point Hitch And Drawbar

     3-POINT HITCH AND DRAWBAR 3-POINT HITCH AND DRAWBAR [ROPS model] (1) Top link (5) Lower link (2) Top link holder (6) Lifting rod (right) (3) Lifting rod (left) (7) Drawbar (4) Telescopic stabilizers LX2620,LX2620SU...
  • Page 71  3-POINT HITCH AND DRAWBAR [CAB model] (1) Top link (5) Lower link (2) Top link holder (6) Lifting rod (right) (3) Lifting rod (left) (7) Drawbar (4) Telescopic stabilizers LX2620,LX2620SU...

  • Page 72: The 3-Point Hitch Setup

    CAB. Remove the pin from the hole at the end of the top link and insert it in the unused top link (1) Lower link (A) Hole mounting hole. (2) Lifting rod (B) Hole LX2620,LX2620SU...

  • Page 73: Drawbar

    1. Adjust the telescopic stabilizers to control horizontal sway of the implement. Select the proper set of holes. (See Hydraulic control unit reference chart on page 79.) (1) Lock nut 2. Put the 3-point mounted implement on the ground. LX2620,LX2620SU...

  • Page 74: Telescopic Lower Links [Cab Model]

    1. Push the levers, pull out the lower link ends, and attach to the implement. 2. Back up the tractor slightly to make sure the lower links are pushed in securely. (1) Lever (A) Push (B) Pull out DRAWBAR WARNING To avoid personal injury or death: LX2620,LX2620SU...

  • Page 75: Hydraulic Unit

    Unless corrected, the unit will be damaged. Contact your Kubota dealer for adjustment. (1) Position control lever (A) “FLOAT” (B) “DOWN” 2. 3-point hitch lowering speed knob (C) “UP”...

  • Page 76: Auxiliary Hydraulics

    1. Remove the block cover. valve, the tank port flow from implement should 2. Attach the block outlet cover (option). be connected to the port (c). When implement is not attached [ROPS model] (1) Block cover (1) Port (c) LX2620,LX2620SU...

  • Page 77: Dual Remote Hydraulic Control System

    Colored coupler Hydraulic cylinder port [B: yellow], [C: blue] Head-end side [A: white], [D: red] Rod-end side • For the attachment side, the couplers made by Parker Hannifin are recommended. LX2620,LX2620SU...

  • Page 78: Rear Hydraulic Outlet (If Equipped)

    WARNING To avoid personal injury or death from crushing: • Do not utilize the valve lock for machine maintenance or repair. • The valve lock is to prevent accidental actuation when implement is not in use or during transport. LX2620,LX2620SU...

  • Page 79: Remote Hydraulic Control System (If Equipped)

    • Double acting valve with float position: This valve may be placed in the float mode with the control lever all the way forward. The cylinder is free to extend or retract, letting an implement such as a loader bucket follow the ground. LX2620,LX2620SU...

  • Page 80: Remote Control Valve Coupler

    Port 4. Clean oil and dust from the coupler, then replace the dust plugs. Lever position NOTE : Lever 2 • Your local Kubota dealer can supply parts for Z (detent) adapting couplers to hydraulic hoses. Port Float Coupler size...

  • Page 81: Hydraulic Control Unit Reference Chart

    － Tighten in raised position. so on. For implements Yes/No with gauge Mower (mid-and wheels, lower the rear-mount type) implements to the Hay rake, ted- ground. der, and so on. LX2620,LX2620SU...

  • Page 82: Tires, Wheels, And Ballast

    • When re-fitting or adjusting a wheel, tighten the bolts to the following torques then recheck after driving the tractor 200 m (200 yard) and 10 times of shuttle movement by 5 m (5 yard), and thereafter according to service interval. LX2620,LX2620SU...

  • Page 83: Front Jack Point

    • Before jacking up the tractor, park it on a firm and level ground and chock the front wheels. • Fix the front axle to keep it from pivoting. • Select a jack that withstands the machine weight and set it up as follows. LX2620,LX2620SU...

  • Page 84: Treads

    (A) 1050 mm (A) 1050 mm (A) 1050 mm (41.3 in.) (41.3 in.) (41.3 in.) (41.3 in.) Tire 14-17.5 R14 15-19.5 Industry 15-19.5 R14 Tread (A) 1050 mm (A) 1085 mm (A) 1085 mm (41.3 in.) (42.7 in.) (42.7 in.) LX2620,LX2620SU...

  • Page 85: Ballast

    Front end weights can be attached to the bumper. See your implement operator's manual for the required Tire sizes 12.4-16 number of weights or contact your local Kubota dealer Slush free at -10 ℃ (14 ℉) Solid at -30 ℃ (-22 ℉) about their usage.
  • Page 86 • While the loader is installed on the CAB tractor, the liquid ballast in the rear tires should be removed. • While the 15-19.5 R4 or 15-19.5 R14 tire is installed on CAB tractor, the liquid ballast in the rear tire should be removed. LX2620,LX2620SU...

  • Page 87: Cab Operation

    Unlock the door and pull the inner door handle. (1) Rear window handle (A) Open (B) Close 4. Rear window half-lock 1. Grip the rear window handle (2) and slightly open the rear window (1). 2. Adjust the half-lock bracket to the set position (B). LX2620,LX2620SU...

  • Page 88: Emergency Exit

    (A) Indicator for work lights 1. Dome light Sliding the dome light switch will give the following light condition: [OFF] The light does not turn on. [ON] The light remains on. (1) Rear work light switch (if (A) Indicator for work lights equipped) LX2620,LX2620SU...

  • Page 89: Front Work Light

    3. If the wiper blades are frozen to the windshield and fail to move, turn the main key switch to the “OFF” position and remove the ice from the blades. Then place the main key switch back to the “ON” position. LX2620,LX2620SU...

  • Page 90: Air Conditioner

    The side and door air outlets can be adjusted to direct (4) Side air outlet (face, back air on to the operator, door window or the rear of the area) CAB. (5) Door air outlet (door area) LX2620,LX2620SU...

  • Page 91: Recirculation Or Fresh Air Selection Lever

    • While working in dusty conditions, keep the the engine at idling speed first and then set the lever at the “FRESH AIR” position. This LX2620,LX2620SU...

  • Page 92: Operation

    (2) Temperature control dial (B) “COOL” (3) Blower switch (4) Air conditioner switch with in- dicator light (1) Mode switch (2) Temperature control dial (3) Blower switch 4.3 Foot warming and head cooling 1. Set the mode switch to the position. LX2620,LX2620SU...

  • Page 93: Defrosting Or Demisting

    [3] and the max “WARM” (end of clockwise) positions, respectively. (1) Defogger switch IMPORTANT : • The battery will discharge if the defogger and the key switch remain in the “ON” positions with the engine stopped. LX2620,LX2620SU...

  • Page 94: Hanger

    • Do not hang anything that is heavier than 3 kg. The hanger may get damaged. • Make sure anything hanging does not interfere with your operation. Caps and other small objects can be hung. (1) Hanger (both sides) LX2620,LX2620SU...

  • Page 95: Maintenance

    Every 800 Engine valve clearance Adjust Primary ele- Replace ＠ Every ment 1000 Air cleaner element 1 year 1000 hrs Secondary ele- or 1 year Replace ＠ ment 1500 Every Fuel injector nozzle Injection pressure Clean ＠ 1500 hrs (Continued) LX2620,LX2620SU...
  • Page 96 • The jobs indicated by ◎ must be done after the first 50 hours of operation. • The items listed above (@ marked) are registered as 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 above instruction.

  • Page 97: Lubricants, Fuel And Coolant

    Battery terminals Moderate amount NOTE : • The product name of Kubota genuine UDT fluid may be different from that in the operator's manual depending on countries or territories. Contact your local Kubota dealer for further details. Engine oil • The oil used in the engine should have an American Petroleum Institute (API) service classification and proper SAE engine oil according to the ambient temperatures shown in the previous table.
  • Page 98 • No.2-D is a distillate fuel of lower volatility for engines in industrial and heavy mobile service (SAE J313 JUN87). Transmission oil *Kubota Super UDT2: For an enhanced ownership experience, we highly recommend Super UDT2 to be used instead of standard hydraulic and transmission fluid.

  • Page 99: Biodiesel Fuel (Bdf) B0-B20

    8. The Kubota Warranty, as specified in the owner's warranty information guide, only covers defects in product materials and workmanship. Accordingly, any problems that may arise due to the use of poor quality fuels that fail to meet the above requirements, whether biodiesel or mineral oil based, are not covered by the Kubota Warranty. Routine handling: 1.
  • Page 100 Fuel line Replace Every 2 years Contact your local Kubota dealer for this service. Long term storage: 1. BDF easily deteriorates due to oxygen, water, heat and foreign substances. Do not store B6 through B20 longer than 1 month and B5 longer than 3 months.

  • Page 101: Periodic Service

    (AdBlue)), refrigerant, solvent, filters, rubber, 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 get rid of waste products. (A) Open HOW TO OPEN THE HOOD 3.

  • Page 102: Closing The Hood

    • Stop the engine before refueling. • Never use fire. • Close the fuel tank cap after refueling. • For refueling, avoid parking the tractor in any place with straws, weeds and other flammable (1) Side cover (B) Pull things below and around. LX2620,LX2620SU...

  • Page 103: Checking Engine Oil Level

    To avoid personal injury or death: • Stop the engine before checking the oil level. 1. Park the machine on a flat surface. 2. Check the engine oil before starting the engine or 5 minutes or more after the engine has stopped. LX2620,LX2620SU...

  • Page 104: Checking Coolant Level

    (2) Dipstick this range. • If coolant should leak, contact your local Kubota dealer. IMPORTANT : • If the oil level is low, do not run the engine. 6. Cleaning evacuator valve 5. Checking coolant level Open the evacuator valve to get rid of large particles of dust and dirt.

  • Page 105: Cleaning Grill And Radiator Screen

    2. Adjust if incorrect measurement is found. (See Adjusting brake pedal on page 109.) 10. Checking gauges, meter and Easy Checker 1. Inspect the instrument panel for broken gauge(s), meter(s) and Easy Checker indicators. 2. Replace if broken. (1) Panel (A) Pull LX2620,LX2620SU...

  • Page 106: Checking Headlight, Hazard Light, And So On

    (1) Grease fitting (speed control pedal) 3. Check the connectors and terminals for looseness, contamination overheated (discolored) connections. 4. Check the instrument panel for correct operation of the switches and gauges. Contact your Kubota dealer regarding maintenance, diagnosis and repair. LX2620,LX2620SU...

  • Page 107: Checking Engine Start System

    2. Turn the key to “START” position. 3. The engine must not crank. WARNING 4. If it cranks, contact your local Kubota dealer for this To avoid personal injury or death: service. • Do not allow anyone near the tractor while Testing switch for the PTO clutch lever testing.

  • Page 108: Checking The Wheel Bolt Torque

    2. Shift the PTO clutch lever to “ON” position. [CAB model] 3. Turn the key to “START” position. 4. The engine must not crank. 5. If it cranks, contact your local Kubota dealer for this service. Testing switches for the operator's seat and the PTO clutch lever 1.

  • Page 109: How To Read Indicator

    2. The battery self-discharges while it is stored. charging the battery. Recharge it once every 3 months in hot seasons • When charging the battery, ensure the vent and once every 6 months in cold seasons. caps are securely in place (if equipped). LX2620,LX2620SU...

  • Page 110: Cleaning Air Cleaner Primary Element

    • Refit the cover with the arrow (of the cover) upright. If the cover is improperly fitted, the evacuator valve will not function and dust will adhere to the element. • Do not touch the secondary element except in cases where replacing is required. LX2620,LX2620SU...

  • Page 111: Adjusting Fan Belt Tension

    6. If adjustment is needed, loosen the lock nut and turn the turnbuckle to adjust the rod length within WARNING acceptable limits. To avoid personal injury or death: • Stop the engine and remove the key before checking the belt tension. LX2620,LX2620SU...

  • Page 112: Every 200 Hours

    Make sure that the engine oil does not leak through the seal and check the oil level on the dipstick. Then replenish the engine oil up to the prescribed level. (A) Free travel LX2620,LX2620SU...

  • Page 113: Changing Engine Oil

    (1) Engine oil filter IMPORTANT : • To prevent serious damage to the engine, use only a Kubota genuine filter. • When replacing the engine oil filter: – Be careful not to allow any oil onto the harness.

  • Page 114: Checking The Power Steering Line

    IMPORTANT : • To prevent serious damage to the hydraulic system, use only a Kubota genuine filter. • Do not operate the tractor immediately after (A) Wheel-to-wheel distance at the rear changing the transmission fluid.

  • Page 115: Adjusting Air Conditioner Belt Tension [Cab Model]

    6. The front distance should be 0 mm to 20 mm (0 in. to 0.79 in.) less than the rear distance. If not, adjust the tie rod length. 7. If adjust the tie rod length, contact your local Kubota dealer. 6. Adjusting air conditioner belt...

  • Page 116: Checking The Air Conditioner Condenser [Cab Model]

    Rinse the filter with clean completely into the oil pan. water and let it air-dry. 2. After draining reinstall the drain plug. IMPORTANT : 3. Fill with new Kubota Super UDT fluid up to the • Do gasoline, thinner similar upper notch on the dipstick.

  • Page 117: Replacing Hydraulic Oil Filter

    (2) Dipstick this range 1. Remove the drain plugs at the bottom of the [LX2620] transmission case and drain the oil completely into the oil pan. 2. After draining reinstall the drain plugs. [LX2620]...

  • Page 118: Replacing Fuel Filter

    8. Make sure that the transmission fluid does not leak past the seal on the filter. IMPORTANT : • To prevent serious damage to the hydraulic system, use only a Kubota genuine filter. 3. Replacing fuel filter WARNING To avoid personal injury or death: •...

  • Page 119: Adjusting Front Axle Pivot (4Wd)

    2. Retighten the lock nut. periodically. Contact your local Kubota dealer for further details. (1) Adjusting screw (1) Fuel filter bowl (A) Loosen (2) Lock nut (B) Tighten 5.

  • Page 120: Every 800 Hours

    1. Adjusting engine valve clearance instruction. 6. After flushing, fill with clean soft water and Contact your local Kubota dealer for this service. antifreeze until the coolant level is just below the EVERY 1000 HOURS OR 1 YEAR radiator cap.

  • Page 121: Antifreeze

    Always use a 50/50 mix of long-life coolant and clean soft water in Kubota engines. Contact your local Kubota dealer concerning coolant for extreme conditions. 1. Long-life coolant (hereafter LLC) comes in several types. Use ethylene glycol (EG) type for this engine.

  • Page 122: Every 3000 Hours

    2. If the hoses and the clamps are found to be worn or build up, adversely affecting the engine parts. damaged, replace or repair them at once. 7. Kubota's genuine long-life coolant has a service life of 2 years. Change the coolant every 2000 hours or every 2 years, whichever comes first.

  • Page 123: Checking The Air Conditioner Pipe And Hose [Cab Model]

    1. Checking radiator hose (water pipes) 4. Checking the air conditioner pipe Contact your local Kubota dealer for this service. and hose [CAB model] 1. Check to see that all lines and hose clamps are 2. Checking power steering line tight and not damaged.

  • Page 124: Draining Clutch Housing Water

    (14) Spare fuse For specific information dealing with electrical problems, read the troubleshooting section of • Check circuit against wrong this manual or contact your local Kubota dealer. Slow blow battery connection. (15) fuse • Contact...

  • Page 125: Replacing Light Bulb

    Outlet (rear) attaching or detaching them when replacing the Outlet (front) light bulbs of the turn signal and hazard lights. Head light, horn Contact your local Kubota dealer for this service. OPC, controller, hazard Panel • Headlights [SU model only]:...

  • Page 126: Replacing Tail Light

    2. Remove the cover of the room light with a flathead screwdriver. (1) Harness connector 2. Loosen the screws and remove the lens. (1) Cover 3. Replace the bulbs. 3. Replace the bulb. (1) Screw (2) Lens (1) Bulb (3) Bulb LX2620,LX2620SU...

  • Page 127: Replacing The Led Light

    (if equipped) is no longer functioning, contact your local • Do not disconnect any part of the refrigeration Kubota dealer for replacing the LED light. circuit of the air conditioning system. Contact your local Kubota dealer for assistance and 6.

  • Page 128: Replacing Radiator Hose (Water Pipes)

    11. Replacing the intake air line 2. Look into the sight glass to see if the refrigerant is flowing through its circuit. Contact your local Kubota dealer for this service. NOTE : • Replace the mentioned parts if any deterioration (crack, hardening, scar or deformation) or damage has occurred.

  • Page 129: Storage

    4 tires are off the ground. Keep the tires out of direct sunlight and extreme heat. IMPORTANT : • Before washing the tractor, stop the engine. Allow sufficient time for the engine to cool down before washing. LX2620,LX2620SU...

  • Page 130: Troubleshooting

    • Coolant flow route corroded. • Flush cooling system. If you have any questions, contact your local Kubota dealer. Trouble Operator's action Engine not overheat- Stop the engine and get it restarted. If the engine fails to restart or the indicator stays on, immediately contact your local ed, but engine warn- Kubota dealer.

  • Page 131: Powertrain Trouble Shooting

    If something is wrong with the powertrain, the master system warning indicator starts blinking and the error code shown below is displayed on the liquid crystal display, indicating the location of the trouble. If an error code appears, immediately contact your local Kubota dealer for repairs. (1) Master system warning indicator...

  • Page 132: Options

     OPTIONS LIST OF OPTIONS OPTIONS LIST OF OPTIONS Contact your local Kubota dealer for further details. • Rear work light High visibility for night work • Front end weights for front ballast • Mounting kit (front end weights) to mount front end weights •...
  • Page 133 6. Insert the CD player into the mounting collar and push it in until “click” is heard. The CD player is secured to the mounting collar by the side tabs. (1) CD player (2) Mounting collar (3) Side tabs LX2620,LX2620SU...

  • Page 134: Index

    118 heating..............90 flushing..............118 air conditioner belt [CAB model] cruise control lever [LX2620 CAB model only]....56 adjusting tension..........113 air conditioner condenser [CAB model] checking.............. 114 daily check............39,100 air conditioner condenser screen [CAB model] checking brake pedal..........
  • Page 135 (4WD) reference chart............79 adjusting.............. 117 hydraulic hose front ballast connections............75 outline..............83 hydraulic oil filter front end weights (option)..........83 replacing..............115 front jack point.............81 Front wheel drive lever..........54 front wheels tread adjusting............80,82 inflation pressure for tires..........80 front wiper..............87 LX2620,LX2620SU...
  • Page 136 PTO clutch lever [LX2620].......... 65 checking.............. 120 PTO clutch lever [LX2620SU]........65 inner air filter [CAB model] PTO select lever [except LX2620SU]......64 cleaning............... 113 PTO shaft cap............. 66 instrument panel............36 PTO shaft cover............66 intake air line checking.............. 120 replacing............121,126...
  • Page 137 (implement)........33 specification table for CAB model....... 29 specification table for ROPS model......27 warranty..............26 speed control pedal.............55 washer liquid [CAB model] speed set lever [LX2620 ROPS model only]....55 adding..............125 stationary PTO............66 washer switch..............87 support plate (option) waste installing..............

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Lx2620su

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