7.2 Troubleshooting
Engine does not turn when starter is actuated
Cause Corrective action
Battery flat or faulty. u Charge or replace battery (see manufacturer's documentation).
Cable connections on battery are
faulty.
u Check if cable connections are properly secured (see
manufacturer's documentation).
Engine wiring or starter faulty. u Check if cable connections are properly secured, contact Service.
Engine wiring is faulty. u Check (→ Page 139).
Loose plug connections at
engine/generator control system.
u Perform visual inspection (see manufacturer's documentation).
Loose plug connection are loose
at engine governor.
u Check plug connections (→ Page 141).
Engine blocked (cannot be rotated
by hand).
u Contact Service.
Engine turns but does not fire
Cause Corrective action
Poor rotation by starter: Battery
flat or faulty.
u Charge or replace battery (see manufacturer's documentation).
Engine wiring is faulty. u Check (→ Page 139).
Air in fuel system u Vent fuel system (→ Page 100).
Engine governor is faulty. u Contact Service.
Engine fires unevenly
Cause Corrective action
Injector is faulty. u Replace (→ Page 88).
Injection pump is faulty. u Replace (→ Page 85).
Engine wiring is faulty. u Check (→ Page 139).
Air in fuel system u Vent fuel system (→ Page 100).
Engine governor is faulty. u Contact Service.
Engine does not reach rated speed
Cause Corrective action
Fuel prefilter clogged. u Replace filter element (→ Page 109).
Easy-change fuel filter clogged. u Replace (→ Page 102).
Air filter clogged. u Check signal ring position of contamination indicator (→ Page 114).
Injector is faulty. u Replace (→ Page 88).
Injection pump is faulty. u Replace (→ Page 85).
Engine wiring is faulty. u Check (→ Page 139).
Overload. u Contact Service.
MS15018/03E 2016-02 | Troubleshooting | 67
TIM-ID: 0000066976 - 001
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