7 Troubleshooting
7.1 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 if cable connections are properly
secured, contact Service.
Engine cabling Faulty Check (→ Page 221).
Engine/generator
control system
Assemblies or connectors possibly loose Perform visual inspection (see manufac-
turer's documentation).
Engine governor Plug-in connections possibly loose Check plug connections (→ Page 220).
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 cabling Faulty Check (→ Page 221).
Fuel system Air in fuel system Vent fuel system (→ Page 136).
Engine governor Faulty Contact Service.
Engine fires unevenly
Component Cause Action
Fuel injection equip-
ment
Injector faulty Replace (→ Page 126).
HP pump defective Contact Service.
Engine cabling Faulty Check (→ Page 221).
Fuel system Air in fuel system Vent fuel system (→ Page 136).
Engine governor Faulty Contact Service.
Engine does not reach rated speed
Component Cause Action
Fuel supply Fuel prefilter (not switchable) clogged. Replace (→ Page 143).
Fuel prefilter (switchable) clogged. Replace (→ Page 145).
Easy-change fuel filter clogged Replace (→ Page 141).
Air supply Air filter clogged Check signal ring position of service in-
dicator (→ Page 159).
MS15054/03E 2018-07 | Troubleshooting | 77
TIM-ID: 0000051898 - 004
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