Operation and Maintenance Manual for PowerKit 6M16 Series
30 of 40
Figure 5-1 Figure 5-2
(3) Cylinder deactivation method: Generally, cut off the fuel supply to the suspect malfunctioned
cylinder, and compare the working condition of the diesel engine before and after stopping fuel
supply to narrow down the scope for further determination of the malfunction location or cause.
(4)Comparison method: Replace a certain assembly or component to determine whether there is
failure.
Notice:
(1) The cause of diesel engine malfunction shall be determined carefully. Before the cause is
basically found, do not disassemble the diesel engine at will. Or it will not only eliminate the
malfunction, but also lead to more serious malfunction due to improper assembly after removal.
(2) Inspection and maintenance on critical components such as high-pressure fuel pump and
turbocharger shall be performed by experienced personnel using special instrument or equipment.
Users without experience shall not disassemble or adjust them.
5.2Common faults and troubleshooting
5.2.1 The diesel engine cannot be started
Cause
Troubleshooting
(1)
Air trapped in fuel system
Remove the air in fuel system. Check the pipe joints for leakage
and repair if any.
(2)
Fuel injection pump malfunction
Check the plunger and delivery valve. Repair or replace the
damaged parts.
(3)
Fuel injector malfunction
Check the atomization of fuel injector, repair if necessary.
(4)Valve timing or fuel supply initial
angle is wrong
Check and adjust.
