Kubota D1503-M-DI Workshop Manual page 28

03-M-DI Series, WSM
Symptom
Low Oil Pressure
High Oil Pressure
Engine Overheated
Battery Quickly
Discharge
Probable Cause
• Engine oil insufficient
• Oil strainer clogged
• Relief valve stuck with dirt
• Relief valve spring weaken or broken
• Excessive oil clearance of crankshaft bearing
• Excessive oil clearance of crankpin bearing
• Excessive oil clearance of rocker arm
• Oil passage clogged
• Different type of oil
• Oil pump defective
• Different type of oil
• Relief valve defective
• Engine oil insufficient
• Fan belt broken or elongated
• Coolant insufficient
• Radiator net and radiator fin clogged with
dust
• Inside of radiator corroded
• Coolant flow route corroded
• Radiator cap defective
• Overload running
• Head gasket defective
• Incorrect injection timing
• Unsuitable fuel used
• Battery electrolyte insufficient
• Fan belt slips
• Wiring disconnected
• Rectifier defective
• Alternator defective
• Battery defective
Replenish
Clean
Clean
Replace
Replace
Replace
Replace
Clean
Use specified type of
oil
Repair or replace
Use specified type of
oil
Replace
Replenish
Replace or adjust
Replenish
Clean
Clean or replace
Clean or replace
Replace
Loosen load
Replace
Adjust
Use specified fuel
Replenish distilled
water and charge
Adjust belt tension or
change
Connect
Replace
Replace
Change
S-7
DIESEL ENGINE
Reference
Solution
Page
S-19
S-55
–
–
S-60, 75,
76, 77, 78
S-56, 74
S-45, 65
–
S-23
S-54, 81,
82
S-23
–
S-19
S-22, 28
S-19
–
S-26
–
S-84
–
S-46, 47
S-86
–
S-21, 29
S-22, 28
S-100
S-93, 99
S-93
–
W1014322
KiSC issued 10, 2009 A