Operation Manual of WEICHAI GENSET
4
The oil supply advance angle is too Contact with after-sales service
small
personnel for adjustment
Replace the fuel, and install an oil-
water separator.
Loosen the bleed screw on the diesel
5 There is moisture and air in the fuel filter, pump fuel with a manual fuel
pump to the bleed screw, exhaust
the air in the fuel system, and then
tighten the bleed screw.
The piston ring is stuck or excessively
6
worn. Thus, its elasticity is
inadequate, resulting in oil inflow in
Replace the piston ring
the combustion chamber
3. Diesel engine cannot reach rated speed
S/N Fault
Treatment method
1 Speed display problem
Check with a hand-held tachometer
or digital tachometer
2 Speed sensor malfunction
Contact after-sales service
personnel for repair or replacement
Check the suction pipe and fuel filter
3 The fuel supply system is blocked
for blockage, and replace them if
necessary
4 There is water in diesel
Replace the fuel, and install an oil-
water separator
5
Improper adjustment
control lever
of
throttle
Check the throttle stroke
6 Governor fault
Check and adjust the governor
7
The maximum speed
governor is set too low
limit
of Check and adjust the governor
4. Shutdown failure of set
S/N Fault
Treatment method
1
A fuse in the junction box is Press the button on the fuse to reset
disconnected
it
Eliminate any open circuit/poor
2
Poor contact, disconnected circuit
contact fault, check the connection
for oxidation and clean it if
necessary
3
Stop button fault
Replace the stop button
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