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ENGINE

SM-E4B SERIES, WSM

1-S3

9Y1210785ENS0001US0

Water Mixed into

Lubricant Oil

Head gasket defective Replace 1-S32

Cylinder block or cylinder head flawed Replace 1-S51

Low Oil Pressure Engine oil insufficient Replenish I-4,

G-7

Oil strainer clogged Clean 1-S34

Relief valve stuck with dirt Clean –

Relief valve spring weaken or broken Replace –

Excessive oil clearance of crankshaft bearing Replace 1-S63

Excessive oil clearance of crankpin bearing Replace 1-S62

Excessive oil clearance of rocker arm Replace 1-S55

Oil passage clogged Clean –

Different type of oil Use specified type of

oil

I-4,

G-6

Oil pump defective Replace 1-S40

High Oil Pressure Different type of oil Use specified type of

oil

I-4,

G-6

Relief valve defective Replace –

Engine Overheated Engine oil insufficient Replenish I-4,

G-7

Fan belt broken or elongated Replace or adjust G-14

Coolant insufficient Replenish G-8,

G-19

Radiator net and radiator fin clogged with dust Clean –

Inside of radiator corroded Clean or replace –

Coolant flow route corroded Clean or replace –

Radiator cap defective Replace 1-S18

Overload running Reduce the load –

Head gasket defective Replace 1-S32

Incorrect injection timing Adjust I-4,

G-26

Unsuitable fuel used Use specified fuel I-4,

G-6

Battery Quickly

Discharged

Battery electrolyte insufficient Replenish distilled

water and charge

G-15

Fan belt slips Adjust belt tension or

replace

G-19

Wiring disconnected Connect –

Rectifier defective Replace 1-S73

Alternator defective Replace 1-S72

Battery defective Replace G-21

Symptom Probable Cause Solution

Reference

Page

KiSC issued 01, 2013 A

Brand	Kubota
Model	SM-E4B Series
Category	Engine
Language	English

Kubota SM-E4B Series User Manual

Table of Contents

Questions and Answers:

Kubota SM-E4B Series Specifications

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