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2. Engine Overheated
Cooling unit
Normal
Normal
Normal
Normal
Normal
Normal
Normal
Check fan belt
tension wear
or damage etc.
Check fresh
water tank cap
Clean cooling
water passage
Check coolant
Too low
Check thermostat
Inspect heat
exchanger
Repair
Replace
Repair
Replace
Repair
Replace
Repair
Replace
Replenish
Replace
Replace
Damage
Check cooling
water pump
Engine
disassembly
Fuel unit
Inspect fuel quality
Poor
Clean and replace
with specilied fuel
Inspect cooling
water leakage
Exteranl
Internal
Retighten
Replace
Engine
disassembly
Operating state
1. Overload
2. Radiator core clogged
3. Continuous over-run
Fuel excessive supply
Check injection nozzle
Abnormal
Adjust
repair
injection
pump