5 Troubleshooting
5.1 Troubleshooting
Engine does not turn when starter is actuated
Component
Cause
Action
Battery
Low or faulty
Charge or replace (see manufacturer's
documentation).
Cable connections faulty
Check if cable connections are properly
secured (see manufacturer's documen-
tation).
Starter
Engine cabling or starter faulty
Check cable connections for secure
seating ; contact Service.
Engine wiring
Faulty
Check (→ Page 138).
Engine governor
Plug-in connections possibly loose
Check plug-in connections (→ Page 137).
Engine
Running gear blocked (engine cannot be
barred manually)
Contact Service.
Engine turns but does not fire
Component
Cause
Action
Starter
Poor rotation by starter: Battery low or
faulty
Charge or replace battery (see manufac-
turer's documentation).
Engine wiring
Faulty
Check (→ Page 137).
Fuel system
Air in fuel system, if fault occurs after
filling the system.
Vent fuel system (→ Page 89).
Engine governor
Faulty
Contact Service.
Engine fires unevenly
Component
Cause
Action
Fuel injection equip-
ment
Injector faulty
Replace (→ Page 81).
Engine wiring
Faulty
Check (→ Page 138).
Fuel system
Air in fuel system, if fault occurs after
filling the system.
Vent fuel system (→ Page 89).
Engine governor
Faulty
Contact Service.
Engine does not reach rated speed
Component
Cause
Action
Fuel supply
Fuel prefilter (if fitted) clogged.
Clean filter element (see manufacturer's
documentation).
Fuel filter clogged
Replace (→ Page 91).
Air supply
Air filter clogged
Replace air filter (→ Page 98).
Fuel injection equip-
ment
Injector faulty
Replace (→ Page 81).
MS150094/02E 2015-05
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