Check Engine; Service Engine Indicator (Aem); High Wheel Motor Temperature Indicator; Blower Fault Warning - Komatsu 730E Operation & Maintenance Manual

OM3241
Operator Cab and Controls

Check Engine

This amber indicator light will illumi-
nate if a malfunction is detected by
the engine electronic control sys-
tem.
If this indicator illuminates, truck operation may con-
tinue, but maintenance personnel should be alerted
as soon as possible.
Service Engine
Indicator (AEM)
Amber service engine indicator
light (A5) will illuminate when
the Advanced Engine Monitor
(AEM) system detects a fault. A
warning buzzer will also sound.
High Wheel Motor
Temperature Indicator
When high wheel motor temper-
ature indicator light (B5) is illu-
minated and the alarm sounds,
high wheel motor temperature is
indicated. Stop the truck, place
the selector switch in NEUTRAL, and raise the
engine rpm to high idle for several minutes to cool the
wheel motors. If the indicator does not turn off, notify
maintenance personnel.

Blower Fault Warning

Blower fault warning light (C5)
will flash on and off. An alarm will
sound if a malfunction occurs in
the cooling air circuit for the alter-
nator and motorized wheels.
Stop the truck immediately, and
notify maintenance personnel if the warning light is
illuminated. Damage to electrical components may
result without the proper ventilation of the blower.
Service Engine Indicator
(CENSE)
When the key switch is turned to
the RUN position before starting
the engine, amber service
engine indicator light (D6) will
illuminate for about two seconds.
The light will then turn off if no faults are detected in
the system. If this indicator remains on, or flashes
when equipped with the Centry™ fuel control sys-
tem, alert maintenance personnel as soon as possi-
ble.
Komatsu Engines w/Centry™ Fuel Control
This indicator monitors the Centry™ fuel system.
During engine operation, if a fault is detected in the
system, the light will turn on and stay on indicating a
warning fault. For more severe faults that can affect
engine operation, the light will flash indicating that
immediate attention is required.
• Warning faults (light on) are ones that require
attention in the near future, but in most
conditions, will not greatly affect governing
performance.
• Severe faults (light flashing) are ones that require
immediate attention, because Centry™ governor
performance could be significantly affected,
resulting in a backup mode of operation.
Active fault conditions must be corrected as soon as
possible.
Refer to Lamp Test Switch for an additional descrip-
tion of this light's function.
Hazard Warning Light
Switch

Hazard warning light switch

(7) flashes all the turn signal
lights. Pressing the bottom
side of the rocker switch
toward the triangle activates
these lights. Pressing the top
side of the rocker switch
toward the OFF symbol turns these lights off.
Operation - Section 32
Page 32-21