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Kubota WSM BX2680 - User Manual

Kubota WSM BX2680
436 pages
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WORKSHOP MANUAL
TRACTOR,MOWER
BX1880,BX2380,BX2680,
RCK60B-23BX,
RCK54-23BX,
RCK48-18BX,RCK60D-26BX,
RCK54D-26BX
KiSC issued 03, 2019 A

Table of Contents

Questions and Answers

  • C
    Christina PayneAug 20, 2025
    Why is my Kubota Lawn Mower producing black exhaust?
    • T
      Tiffany RobertsAug 21, 2025
      If you notice black or dark gray exhaust gas from your Kubota Lawn Mower, it could be due to a few reasons. You might be overloading the mower, so try decreasing the load. It could also be due to using low-grade fuel, so switch to the specified fuel. A clogged fuel filter or air cleaner could also be the culprit, so replace the fuel filter and clean or replace the air cleaner. Finally, deficient nozzle injection can cause this issue, so repair or replace the nozzle.
  • A
    Alejandra YoungAug 23, 2025
    What to do if the starter does not operate on my Kubota WSM BX2680?
    • S
      Sandy BellAug 23, 2025
      If the starter on your Kubota Lawn Mower isn't working, it could be due to a discharged battery (charge it), a malfunctioning starter (repair or replace it), a malfunctioning main switch (replace it), disconnected wiring (connect it), or a malfunctioning safety switch (check and replace it).
  • S
    Stacy OwensAug 25, 2025
    Why is my Kubota WSM BX2680 emitting blue or white exhaust gas?
    • W
      whitemichealAug 26, 2025
      If you notice white or blue exhaust gas from your Kubota Lawn Mower, it could be due to excessive engine oil (reduce to the specified amount), worn or stuck piston rings and cylinder (repair or replace), incorrect injection timing (adjust it), or deficient compression (check it).
  • C
    Charles JacksonAug 27, 2025
    Why is my Kubota WSM BX2680 Lawn Mower using excessive lubricant oil?
    • A
      Andrew RoblesAug 28, 2025
      If you're noticing excessive lubricant oil consumption in your Kubota Lawn Mower, it could be due to a few reasons: the piston ring's gap facing the same direction (shift ring gap direction), a worn or stuck oil ring (replace it), a worn piston ring groove (replace the piston), worn valve stem and valve guide (replace them), or worn crankshaft bearing and crank pin bearing (replace them).
  • N
    Nathan RogersAug 30, 2025
    What causes low oil pressure in my Kubota WSM BX2680?
    • L
      Lisa HardinAug 30, 2025
      If you have low oil pressure in your Kubota Lawn Mower, it could be due to several reasons. The engine oil might be insufficient, so fill it up. The oil strainer could be clogged, so clean it. The relief valve might be stuck with dirt, so clean it. The relief valve spring might be weak or broken, so replace it. There could be excessive oil clearance of the crankshaft bearing, crankpin bearing, or rocker arm, so replace them. The oil passage might be clogged, so clean it. You might be using a different type of oil, so use the specified type of oil. The oil pump might be damaged, so replace it. Finally, the oil filter might be clogged, so replace it.
  • L
    lisa30Sep 1, 2025
    Why is the engine revolution not smooth on my Kubota WSM BX2680?
    • M
      Mark SmithSep 1, 2025
      If your Kubota Lawn Mower's engine revolution isn't smooth, several factors could be at play. Start by checking the fuel filter for clogs or dirt and replace if necessary. The air cleaner might also be clogged, so clean or replace it. Ensure the injection pipe retaining nut is tightened to prevent fuel leaks. Issues with the injection pump, such as malfunctioning, may require repair or replacement. Other potential causes include incorrect nozzle opening pressure (adjust it), a stuck or clogged injection nozzle (repair or replace), or a malfunctioning governor (repair).
  • S
    smithjamesSep 3, 2025
    Why is my Kubota WSM BX2680 Lawn Mower engine overheating?
    • T
      Teresa GaySep 3, 2025
      If your Kubota Lawn Mower is overheating, there are several possible causes. Check if the engine oil or coolant levels are insufficient and fill if needed. Inspect the fan belt for breakage or elongation, and replace or adjust it accordingly. Clean any dust clogging the radiator net and fins. If the inside of the radiator or coolant flow route is corroded, clean or replace them. A damaged radiator cap should be replaced. Avoid overload operating by reducing the load. Finally, a damaged head gasket should be replaced.
  • S
    Sarah CurtisSep 6, 2025
    Why does my Kubota WSM BX2680 have deficient output?
    • E
      Eric Anderson IVSep 6, 2025
      If your Kubota Lawn Mower is experiencing deficient output, it could be due to several reasons. Incorrect injection timing may be the cause, so you should adjust it. The engine's moving parts might be seizing, requiring repair or replacement. A malfunctioning injection pump or deficient nozzle injection can also lead to this issue, so repair or replace the pump or nozzle as needed. Additionally, a dirty or clogged air cleaner can reduce output, so clean or replace it. Finally, a compression leak may be the problem, requiring you to replace the head gasket and tighten the cylinder head screws, glow plug, and nozzle holder.
  • A
    Anthony StephensonSep 8, 2025
    Why does the battery on my Kubota WSM BX2680 quickly discharge?
    • S
      Shane ThomasSep 8, 2025
      If your Kubota Lawn Mower's battery is quickly discharging, it could be due to insufficient battery electrolyte (fill with distilled water and charge), a slipping fan belt (adjust belt tension or replace), disconnected wiring (connect it), a damaged rectifier (replace it), a damaged alternator (replace it), or a damaged battery (replace it).
  • E
    Erica ThomasSep 10, 2025
    Why is fuel mixing into the lubricant oil in my Kubota WSM BX2680?
    • S
      Susan DixonSep 12, 2025
      If fuel has mixed into the lubricant oil of your Kubota Lawn Mower, it could be due to a worn injection pump plunger (repair or replace), deficient nozzle injection (repair or replace nozzle), or a broken injection pump (replace).

Summary

TRACTOR,MOWER

1. INFORMATION

SAFETY FIRST

Crucial safety instructions and warnings for safe operation and maintenance.

SAFETY LABEL

Details on safety labels, their importance, and care instructions for BX tractors and mowers.

SPECIFICATIONS

Technical data and specifications for various tractor and mower models.

TRAVELING SPEEDS

Operational speed ranges for different models and gear settings.

DIMENSIONS

Physical dimensions of the tractor including length, width, height, and wheelbase.

2. GENERAL

IDENTIFICATION

Procedures to identify tractor and mower serial numbers for service and parts inquiries.

GENERAL PRECAUTIONS

Essential safety and procedural guidelines for disassembly, assembly, and general maintenance.

HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING

Guidelines for safe handling of electrical components, wiring, and battery connections.

LUBRICANTS, FUEL AND COOLANT

Specifications and recommendations for all fluids, fuels, and coolants used in the tractor.

TIGHTENING TORQUES

Specific torque values for fasteners across various tractor components.

MAINTENANCE CHECK LIST

Schedules and intervals for routine maintenance tasks for the tractor and mower.

CHECK AND MAINTENANCE

Step-by-step procedures for daily checks and periodic maintenance tasks.

TIRES, WHEELS, AND BALLAST

Guidelines for tire inflation, wheel tread, and ballast for optimal performance.

IMPLEMENT LIMITATIONS

Information on compatible implements and their weight limitations for safe tractor operation.

SPECIAL TOOLS

Details of specialized tools required for specific engine and tractor service procedures.

3. ENGINE

MECHANISM

Detailed breakdown of engine components, including cylinder block, lubrication, cooling, and fuel systems.

SERVICING

Comprehensive troubleshooting guide for engine problems and detailed service specifications.

4. TRANSAXLE

MECHANISM

Explanation of the transaxle structure, including traveling system, differential, and PTO systems.

SERVICING

Troubleshooting guide for transaxle issues and detailed servicing specifications.

5. FRONT AXLE

MECHANISM

Details on the front axle structure, power transmission, and differential system.

SERVICING

Troubleshooting guide for front axle problems and detailed servicing specifications.

6. STEERING

MECHANISM

Explanation of steering system components, hydraulic circuit, and control valve functions.

SERVICING

Troubleshooting guide for steering issues and detailed servicing specifications.

7. HYDRAULIC SYSTEM

MECHANISM

Overview of the hydraulic system, including pump, control valves, cylinders, and mower linkage.

SERVICING

Troubleshooting guide for hydraulic system problems and detailed servicing specifications.

8. ELECTRICAL SYSTEM

MECHANISM

Wiring diagrams, electrical connector charts, and symbols for reading circuit diagrams.

SERVICING

Troubleshooting guide for electrical system faults and service specifications for various components.

9. MOWER

MECHANISM

Explanation of the mower's power transmission, lifting mechanism, and self-balancer system.

SERVICING

Troubleshooting guide for mower issues and detailed servicing specifications.

Kubota WSM BX2680 Specifications

General IconGeneral
Engine TypeDiesel
TransmissionHydrostatic
Fuel Capacity6.6 gal
Drive4WD
Mower Deck TypeMid-mount
Mower Deck Width60 in

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