6 Troubleshooting
6.1 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 proper‐
ly secured (see manufacturer's docu‐
mentation).
Starter Engine cabling or starter faulty Check if cable connections are proper‐
ly secured, contact Service.
Engine cabling Faulty Check (→ Page 140).
Engine/generator
control system
Assemblies or connectors possibly
loose
Perform visual inspection (see manu‐
facturer's documentation).
DDEC Plug-in connections possibly loose Check plug-in connections
(→ Page 143).
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 manu‐
facturer's documentation).
Engine cabling Faulty Check (→ Page 140).
Fuel system Air in fuel system Vent fuel system (→ Page 97).
DDEC Faulty Contact Service.
Engine fires unevenly
Component Cause Action
Fuel injection equip‐
ment
Injector faulty Replace (→ Page 91).
Engine cabling Faulty Check (→ Page 140).
Fuel system Air in fuel system Vent fuel system (→ Page 97).
DDEC Faulty Contact Service.
Engine does not reach rated speed
Component Cause Action
Fuel supply Fuel prefilter clogged Clean or replace filter element.
Easy-change fuel filter clogged Replace (→ Page 98).
Air supply Air filter clogged Check signal ring position of service in‐
dicator (→ Page 102).
MS150049/02E 2012-11 | Troubleshooting | 49
TIM-ID: 0000002542 - 003
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