Daewoo DDERBF Series, User Manual

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5-2 Cause and remedy for not enough power of diesel engine
5-3 Cause and remedy for the enging stopping automatically
CAUSE
REMEDY
Malfunction of fuel system:
parts obstruction of fuel pipeline
and fuel filler
Check fuel switch , it mus! be opened fully.
Check fuel filler and fuel pipeline.
The pumping of fuel is not good
Maintain or change the damaged parts of fuel
pump
Malfunction of nozzle:
lnjection pressure is not correct
Adjust the injection pressure.
Spray hole carbon deposit Clean.
Needle valve adhered Clean or change.
Fitting is too loase between
n ee dl e va l ve and needle valve
body
Change.
Air filter i s obstructed
Disassemble to clean to cha nge the core of filter.
Speed is not high enough
Check the speed of diesel engine with
t achome ter . Adjust the Adjust high speed limit
screw .
CAUSE REMEDY
Malfunction of fuel system:
No fuel
Add fuel.
Fuel pipeline of filter is
obstructed
Maintain or clean.
There is air in fnel system Drain out the air.
Needle valve of nozzle adhered Clean, grind the nozzle or change it if necessary.
Air filter is obstructed Maintain or brush off.
The load increase suddenly Decrease the load.