TROUBLESHOOTING
4-2.2.5 Causes and Troubleshooting for Exhaust with White Smoke
Table10
F
CAUSES I TROUBLESHOOTING
Clean the fuel tank and filter and
change the diesel fuel.
Faulty fuel injection system
Incorrect fuel injection and
valve timing
Engine overheating
Faulty fuel pump and/or
injection pump
4-2.2.6 Checking Methods for malfunctioned Engine
Table 11
Speed sometimes fast, sometimes
slow
Check if the speed governing system
is flexible, and if air mixed in oil
pipeline.
Abnormal noise suddenly sent out
Stop the engine and inspect each
movable parts carefully
Exhaust with black suddenly Check fuel system, especially the
nozzle.
Rhythmically metal knocking sound in The fuel delivery angle is too big,
the cylinder should adjust the angle.
4-2.3 Overhaul and Troubleshooting for Diesel Generator
4-2.3.1 Causes and troubleshooting for the generator not being started
Table 12
Fuel switch is not on the position of
"ON"(start switch)
Turn fuel switch handle to the position
of "ON"
Air entrapped in fuel system Release air
No or little spray from injection pump Disassemble the nozzle and adjust it
and nozzle on the test table
The governor speed handle is not on Turn the governor handle to the
the position of "RUN" position of "ON"
Air entrapped in fuel system Release air
Water mixed in diesel fuel
Improper air/fuel mixture
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