Doosan D55C-5 - Parking Brake Test and Adjustment

D439E Service Manual 2. Engine Mechanical System (D439E)
120
Trouble Shooting
Overheat
Yes
Yes
Is the tension of V-belt normal?
Adjust the tension of the belt and after
checking the belt, replace it if necessary.
No
Yes
Is coolant level proper?
Add the coolant, and if there is a leak,
check the cooling system.
Yes
No
Is there any clogged radiator fan?
Clean the radiator core and adjust the
deformation of core if necessary.
Yes
No
Is coolant polluted or rusted? Clean the cooling system
No
No
Is there any leak in the auto cooling fan
coupling?
Replace the fan coupling
Check the all possible causes of
overheating.
No
Yes
No
Is thermostat operatin
g
? Replace the thermostat
Yes
No
Does water pump work properly? Replace the water pump