JLG G6-42A Service Manual - Manual (Page 231)

9-67 G6-42A, G9-43A, G10-43A
Electrical System
9.17 ENGINE INDICATOR LAMPS - PERKINS
Warning
Lamp
Shutdown
Lamp
Lamp State Lamp Indication Engine State
ON ON Bulb Check When the ignition is turned on, the
EMS shall illuminate each bulb for 2
seconds and extinguish them
afterwards Key on, but engine has
yet to be cranked
OFF OFF No Faults Present With both lamps off whilst engine is
running then are no currently active
warnings, diagnostics or events Engine is running with no
detected faults
ON OFF Active Diagnostic Should the warning lamp illuminate
during engine running, this indicates
that an Active diagnostic (Electrical
fault) is present Engine is running
normally, but has one or
more faults with engine
management system
ON FLASH Derate
(Invoked by
Active Diagnostic)
Should the warning lamp illuminate
and the shutdown lamp flash during
engine running, this indicates that an
Active diagnostic (Electrical fault) is
present. The diagnostic is sufficiently
serious to invoke engine derate Engine is running, but has
one or more Active
diagnostic events that
have initiated engine
derate
FLASH OFF Warning
(Warning only)
Should the warning lamp flash during
engine running, this indicates that one
or more of the engine protection
strategy warning values have been
exceeded, but not to a level that will
invoke Derate or Shutdown Engine is running
normally, but has one or
more monitored engine
parameters outside of the
acceptable range
FLASH FLASH Derate
(Warning and
Derate)
Should both the Warning Lamp and
Shutdown Lamp flash during engine
running, this indicates that one, or
more of the engine protection strategy
values have been exceeded beyond
the level required to invoke engine
derate Engine is running, but
one or more of the
monitored engine
parameters has gone
beyond that of warning
only and has now
exceeded those set for
engine derate
ON ON Engine Shutdown Should both the Warning Lamp and
Shutdown Lamp illuminate during
engine running this indicates that
either:
1. One or more of the engine
protection strategy shutdown
values has been exceeded
2. A serious Active diagnostic has
been detected
Shortly after (time duration to be agreed)
engine will shutdown
Engine is either shutdown
or shutdown is imminent,
one of more monitored
engine parameters have
gone beyond that of
warning or derate and
have now exceeded
those set for engine
shutdown, or a serious
Active diagnostic has
been detected