O P E R A T I O N & M A I N T E N A N C E M A N U A L
48
6
、
0verheating Of Engine
cause
remedies
1 temperature of cooling water too
high
(1)insufficient cooling water or vapor
lock in water pipes
(1)fill the rank to make cooling water level
higher than the center line of water pump
(2)bad working state of water pumps
(2)check water pump clearance and
tightness of belts, eliminate leakage
(3)water scale in cooling systems too
thick
(3)remove it
2 oil temperature too high
(1)insufficient or excessive oil
(1)check whether the oil level is between
the dip stick scale lines
(2)oil pressure too low with insufficient
flow
(2)refer to paragraph V.
3 engines overload
Relieve load
7
、
engine running away
CAUSE
REMEDIES
1 governor failure
Stop immediately ,then check and
repair
2 the fuel pump pull rod locked
Stop immediately ,then check and
repair
3 injection pump supply to much
more fuel
Stop immediately, readjust oil supply
4 burn lubricant to much
Stop immediately ,then check and
repair
