Doosan PU086T User Manual

- 61 -
Condition Causes Remedies
4) Overheating
•
Engine oil insufficient or poor Replenish or replace
•
Cooling water insufficient Replenish or replace
•
Fan belt loosened, worn, damaged Adjust or replace
•
Cooling water pump’s function lowered Repair or replace
•
Water temp. regulator’s operation poor
Replace
•
Valve clearance incorrect Adjust
•
Exhaust system’s resistance Clean or replace
increased
5) Engine noisy For noises arise compositely such as
rotating parts, lapping parts etc., there
is necessity to search the cause of
noises accurately.
(1) Crankshaft
•
As the wear of bearing or crankshaft Replace bearing &
progress, the oil clearances increase. grind crankshaft
•
Lopsided wear of crankshaft Grind or replace
•
Oil supply insufficient due to oil Clean oil passage
passage clogging
•
Stuck bearing Replace bearing & Grind
(2) Con rod and Con rod
•
Lopsided wear of con rod bearing Replace bearing
bearing
•
Lopsided wear of crank pin Grind crankshaft
•
Connecting rod distortion Repair or replace
•
Stuck bearing Replace & grind crankshaft
•
Oil supply insufficiency as clogging Clean oil passage
at oil passage progresses
(3) Piston, piston pin &
•
Piston clearance increase as the Replace piston & piston ring
piston ring wear of piston and piston ring
progresses
•
Wear of piston or piston pin Replace
•
Piston stuck Replace piston
•
Piston insertion poor Replace piston
•
Piston ring damaged Replace piston

Doosan PU086T Specifications

General

Brand	Doosan
Model	PU086T
Category	Engine
Language	English