Doosan DE08TS User Manual

DE08TS Diesel Engines Maintenance of Major Components
Diagnostics and troubleshooting
71
Complaints Possible causes Corrections
1. Engine overheating
•
Lack of coolant
•
Replenish coolant
•
Radiator cap pressure valve
•
Replace cap
spring weakened
•
Fan belt loosened or broken
•
Adjust or replace fan belt
•
Fan belt fouled with oil
•
Replace fan belt
•
Thermostat inoperative
•
Replace thermostat
•
Water pump defective
•
Repair or replace
•
Restrictions in water passages
•
Clean radiator and water
due to deposit of scales passages
•
Injection timing incorrect
•
Adjust injection timing
correctly
•
Restriction in radiator core
•
Clean exterior of radiator
•
Gases leaking into water jacket
•
Replace cylinder head gasket
due to broken cylinder head
gasket
2. Engine overcooling
•
Thermostat inoperative
•
Replace thermostat
•
Ambient temperature too low
•
Install radiator curtain
3. Lack of coolant
•
Radiator leaky
•
Correct or replace
•
Radiator hoses loosely
•
Retighten clamps or replace
connected or damaged hoses
•
Radiator cap valve spring
•
Replace cap
weakened
•
Water pump leaky
•
Repair or replace
•
Heater hoses loosely
•
Tighten or replace hoses
connected or broken
•
Cylinder head gasket leaky
•
Replace cylinder head gasket
•
Cylinder head or cylinder block
•
Replace cylinder head block
cracked
4. Cooling system noisy
•
Water pump bearing defective
•
Replace bearing
•
Fan loosely fitted or bent
•
Retighten or replace fan
•
Fan out of balance
•
Replace fan
•
Fan belt defective
•
Replace fan belt

Doosan DE08TS Specifications

General

Brand	Doosan
Model	DE08TS
Category	Engine
Language	English