Diesel Gen-set Operation Instructions
72
Chapter 10 Common Failures and Troubleshooting
1. Diesel engine does not start
No. Causes
Troubleshooting
1
Starting system fails-starter does not operate
Power of control system is not
connected
Connect power of control system
Battery is low in level or damaged
Recharge or replace the battery
Fuse in control chamber operates
Replace fuse
Line
fault
Tighten loose connecting wire and
replace aged cable
Starting motor malfunctions
Contact with after-sale service
personnel to maintain or replace.
2
Fuel supply system fails- starter operates, but diesel engine does not start
No fuel in fuel tank
Refill diesel oil into daily-use fuel tank
Stop handle is in stop position and
does not operate during starting
Check relay and line troubles
Stall controller malfunctions
Contact with after-sale service
personnel to maintain or replace.
There is air in fuel supply system
Bleed air in fuel system (see Chapter 7
for specific method)
Fuel filter is blocked
Clean air filter (see Chapter 9 for
specific method)
Fuel sucking pipe joint of fuel
delivery pump is loose
Tighten fuel sucking pipe joint of fuel
delivery pump
Fuel delivery pump malfunctions
Contact with after-sale service
personnel to maintain or replace.
Fuel
injection
pump malfunctions
Contact with after-sale service
personnel to maintain or replace.
Fuel
injector
malfunctions
Contact with after-sale service
personnel to maintain or replace.
There is water in diesel oil
3
Air intake system malfunction-starter operates, but diesel engine does not