MTU C23R Instrucciones de operaciones Pagina 56

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6 Troubleshooting
6.1 Troubleshooting
Engine does not turn over when starter is operated
Component Cause Action
Battery Discharged or defective Charge or replace (see manufacturer's
documentation).
Cable connections defective Check if cable connections are properly
secured (see manufacturer's documen-
tation).
Starter Engine wiring or starter faulty Check if cable connections are properly
secured, contact Service.
Engine wiring Faulty Check (→ Page 149).
Engine/alternator
control system
Assemblies or connectors possibly loose Perform visual inspection (see manufac-
turer's documentation).
Engine Control Unit Electrical connections may be loose Check electrical connections
(→ Page 151).
Engine Jammed (cannot be cranked by hand) Notify Service.
Engine turns over when started but does not fire
Component Cause Action
Starter Lacks power: battery discharged or de-
fective
Charge or replace battery (see manufac-
turer's documentation).
Engine wiring Faulty Check (→ Page 149).
Fuel system Air in fuel system Bleed fuel system (→ Page 103).
Engine Control Unit Faulty Notify Service.
Engine fires unevenly
Component Cause Action
Fuel injection system Injector defective Replace (→ Page 97).
Engine wiring Faulty Check (→ Page 149).
Fuel system Air in fuel system Bleed fuel system (→ Page 103).
Engine Control Unit Faulty Notify Service.
Engine fails to reach rated speed
Component Cause Action
Fuel supply Fuel prefilter clogged Replace
Fuel filter clogged Replace (→ Page 104).
Air supply Air filter clogged Clean.
Fuel injection system Injector defective Replace (→ Page 97).
Engine wiring Faulty Check (→ Page 149).
Engine Overloaded Notify Service.
56 | Troubleshooting | M015695/03E 2013-03
TIM-ID: 0000002541 - 002
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