Kubota SM-E4B Series - Page 67

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