6 Troubleshooting
6.1 Troubleshooting
Engine does not turn when starter is actuated
Cause
Corrective action
Battery low or defective
u
Charge or replace (→ manufacturer's documentation).
Cable connections defective
u
Check cable connections for secure seating (→ manufacturer's
documentation).
Starter: Engine cabling o starter
defective
u
Check if cable connections are properly secured, contact
Service.
Engine cabling defective
u
Check (→ Page 116).
Engine / generator control:
Assemblies or connectors
possibly loose
u
Carry out visual inspection (→ manufactuer's documentation).
Engine governor: Plug-in
connections loose
u
Check plug connections (→ Page 118).
Running gear blocked (engine
cannot be barred manually)
u
Contact Service.
Engine turns on starting but does not fire
Cause
Corrective action
Poor rotation by starter: Battery
low or defective
u
Charge or replace battery (→ manufacturer's documentation).
Engine cabling defective.
u
Check (→ Page 116).
Air in fuel system
u
Vent fuel system (→ Page 88).
Engine governor defective
u
Contact Service.
Engine fires unevenly
Cause
Corrective action
Injector defective
u
Check, replace if necessary (→ Page 83).
Engine cabling defective
u
Check (→ Page 116)
Air in fuel system
u
Vent fuel system (→ Page 88)
Engine governor defective
u
Contact Service.
Engine does not reach nominal speed
Cause
Corrective action
Fuel prefilter clogged
u
Replace (→ manufacturer's documentation).
Fuel filter clogged
u
Replace (→ Page 89).
Air filter clogged
u
Check, replace if necessary (→ Page 94).
Injector defective
u
Check, replace if necessary (→ Page 83).
Engine cabling defective
u
Check (→ Page 116).
Engine: Overload
u
Contact Service.
54 | Troubleshooting | MS15029/01E 2015-06
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