Kubota WSM L5740-II User Manual

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L3540-II,L4240-II,L5040-II,

L5240-II,L5740-II

WORKSHOP MANUAL

TRACTOR

KiSC issued 02, 2015 A

Table of Contents

Questions and Answers:

E
Elizabeth LeeAug 19, 2025
Why is my Kubota Tractor emitting black exhaust?
- W
  wilsonrobertAug 19, 2025
  If your Kubota Tractor is producing black or dark gray exhaust gas, it could be due to several reasons. You might be overloading the tractor, so try decreasing the load. Using the specified fuel is important; low-grade fuel can cause this issue. A clogged air cleaner can also be the culprit, so clean or change it. Additionally, a clogged fuel filter should be changed. Finally, deficient nozzle injection can lead to this problem, requiring you to repair or replace the nozzle.
K
Kathleen NguyenAug 22, 2025
What to do if Kubota WSM L5740-II engine is overheating?
- C
  Chris VasquezAug 22, 2025
  If your Kubota Tractor engine is overheating, several issues could be the cause. Check for overload running and loosen the load if necessary. Ensure there's sufficient engine oil and coolant by filling them to the appropriate levels. Verify that you're using the specified fuel. Inspect the fan belt for breakage or elongation, and change or adjust it as needed. Clean any dust clogging the radiator net and radiator fin. A damaged radiator cap should be replaced. If the inside of the radiator or coolant flow route is corroded, clean or replace them. A damaged head gasket also needs replacement. Lastly, incorrect injection timing should be adjusted.
D
davidhowardAug 25, 2025
Why is my Kubota WSM L5740-II Tractor's output deficient?
- H
  Heather HowardAug 25, 2025
  If your Kubota Tractor is experiencing deficient output, start by checking the air cleaner for dirt or clogs and clean or replace it. Deficient nozzle injection can also cause this, requiring you to repair or replace the nozzle. A compression leak needs attention; replace the head gasket and tighten the cylinder head bolt, glow plug, and nozzle holder. Incorrect injection timing should be adjusted. If the engine's moving parts seem to be seizing, they need repair or replacement. Lastly, uneven fuel injection can be a problem, so repair or replace the injection pump.
W
wbuckAug 27, 2025
Why is the engine revolution not smooth on my Kubota WSM L5740-II Tractor?
- P
  Patrick PearsonAug 27, 2025
  If the engine revolution of your Kubota Tractor isn't smooth, consider these possible causes: the air cleaner might be clogged, requiring cleaning or changing. A fuel filter that's clogged or dirty also needs cleaning or changing. Check for a fuel leak due to a loose injection pipe retaining nut and tighten it. A malfunctioning governor needs repair. Incorrect nozzle injection pressure should be adjusted. If the injection nozzle is stuck or clogged, repair or replace it. Lastly, a malfunctioning injection pump may need repair or replacement.
J
Jackie JonesAug 30, 2025
What causes low oil pressure in my Kubota WSM L5740-II?
- R
  Ryan WalterAug 30, 2025
  If your Kubota Tractor has low oil pressure, there are several potential causes. Start by checking if the engine oil is insufficient and fill it if needed. Ensure you're using the specified type of oil. A clogged oil strainer needs cleaning. If the relief valve is stuck with dirt, clean it. A relief valve spring that's weakened or broken should be replaced. A damaged oil pump needs repair or replacement. Excessive oil clearance of the crankshaft bearing, crankpin bearing, or rocker arm requires replacement. Finally, a clogged oil passage should be cleaned.
A
Alice McbrideSep 2, 2025
Why is my Kubota WSM L5740-II consuming excessive lubricant oil?
- N
  Nathan NewmanSep 2, 2025
  If your Kubota Tractor is consuming excessive lubricant oil, several factors could be responsible. Check if the piston ring's gap is facing the same direction and shift the ring gap direction. An oil ring that's worn or stuck needs replacement. Worn valve stems and guides also require replacement. If the piston ring groove is worn, replace the piston. Finally, oil leaks due to damaged seals or packing necessitate their replacement.
S
Stephanie HintonSep 5, 2025
What does white or blue exhaust from my Kubota WSM L5740-II Tractor mean?
- A
  andrewwalterSep 5, 2025
  If you observe either white or blue exhaust gas from your Kubota Tractor, it could be due to excessive engine oil, which should be reduced to the specified level. Another cause might be worn or stuck piston rings and cylinders, requiring repair or replacement. Also, incorrect injection timing can lead to this issue, so it should be adjusted.
G
gonzalesalexSep 7, 2025
Why is fuel mixing into the lubricant oil in my Kubota WSM L5740-II?
- J
  Jared WhiteSep 8, 2025
  If fuel is mixed into the lubricant oil of your Kubota Tractor, it could be due to a worn injection pump plunger, requiring pump replacement. Another cause is deficient nozzle injection, which means you'll need to repair or replace the nozzle. Finally, a broken injection pump will also lead to this issue and needs to be replaced.
L
Laura HigginsSep 10, 2025
What causes high oil pressure in my Kubota WSM L5740-II Tractor?

Kubota WSM L5740-II Specifications

General

Brand	Kubota
Model	WSM L5740-II
Category	Tractor
Language	English

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