Diesel Gen-set Operation Instructions
73
start
Air intake system leaks air Inspect and maintain
Intake manifold is blocked Clean
Air filter malfunctions
Clean air filter (see Chapter 9 for
specific method)
Intake or exhaust valve leaks air Adjust valve clearance
Air cylinder leaks air Replace piston ring
2. Diesel engine belches smoke
No. Causes Troubleshooting
1 Black smoke-diesel oil is not burnt fully
Air filter malfunctions
Clean air filter and replace when
necessary
Intake manifold is blocked
Clean intake manifold and
replace when necessary
Air intake system leaks air
Discover fault point and have it
maintained or replaced
Valve clearance is incorrect
Contact with after-sale service
personnel to maintain.
Insufficient cylinder compression pressure
caused by wear of piston ring
Replace piston ring.
Supercharger malfunctions Repair or replace supercharger.
Thin air caused by extremely high
temperature or altitude
Consult with sales personnel to
correct power of the Gen-set.
Insufficient fuel injection pressure caused
by malfunction of fuel injection pump
Contact with after-sale service
personnel to maintain or replace.
Amount of fuel supplied to fuel injection
pump is too large
Contact with after-sale service
personnel to adjust.
Speed governor of fuel injection pump
malfunctions
Contact with after-sale service
personnel to maintain or replace.
Fuel supply timing is incorrect
Contact with after-sale service
personnel to maintain or replace.
Fuel injector fails and atomization of diesel
oil is poor
Contact with after-sale service
personnel to maintain or replace.
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