1-S3
L3130 · L3430 · L3830 · L4630 · L5030, WSM
ENGINE
W1014322
Symptom Probable Cause Solution
Reference
Page
Engine Overheated • 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
Replenish
Change or adjust
Replenish
Clean
Clean or replace
Clean or replace
Replace
Loosen the load
Replace
Adjust
Use the specified fuel
G-7, 8
G-23
–
–
–
G-27
1-S63
–
1-S30
1-S64
G-7, 8
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