Kubota SM-E3B Series - Servicing; 1. Troubleshooting (Continued)

S-3
SM-E3B SERIES WSM
DIESEL ENGINE
W1049318
Symptom Probable Cause Solution
Reference
Page
Low Oil Pressure Engine oil insufficient Replenish G-7
Oil strainer clogged Clean S-34
Relief valve stuck with dirt Clean –
Relief valve spring weaken or broken Replace –
Excessive oil clearance of crankshaft bearing Replace S-47, 48,
66 to 69
Excessive oil clearance of crankpin bearing Replace S-42, 65
Excessive oil clearance of rocker arm Replace S-31, 57
Oil passage clogged Clean –
Different type of oil Use specified type of
oil
G-9
Oil pump defective Replace S-41, 71,
72
High Oil Pressure Different type of oil Use specified type of
oil
G-9
Relief valve defective Replace –
Engine Overheated Engine oil insufficient Replenish G-7
Fan belt broken or elongated Replace or adjust G-14
Coolant insufficient Replenish G-18, 19
Radiator net and radiator fin clogged with dust Clean –
Inside of radiator corroded Clean or replace G-18
Coolant flow route corroded Clean or replace G-18, 19
Radiator cap defective Replace –
Overload running Reduce the load –
Head gasket defective Replace S-32
Incorrect injection timing Adjust S-17, 18
Unsuitable fuel used Use specified fuel 5
Battery Quickly
Discharged
Battery electrolyte insufficient Replenish distilled
water and charge
G-15
Fan belt slips Adjust belt tension or
replace
G-14
Wiring disconnected Connect –
Rectifier defective Replace S-52, 76
Alternator defective Replace S-29, 52
Battery defective Replace G-29
KiSC issued 03, 2011 A