OM3223 Operation - Section 32
Operator Cab and Controls Page 32-21
B5. High Wheel Motor
Temperature (Optional)
When this indicator is illumi-
nated and the alarm sounds,
high wheel motor temperature
is indicated. Stop the truck,
place the selector switch in
NEUTRAL and raise engine
rpm to high idle for several minutes to cool the wheel
motors. If the indicator does not turn off, notify main-
tenance personnel.
C5. Motor Blower Off
The motor blower warning light
will flash on and off and an alarm
will sound if a malfunction occurs
in the cooling air circuit for the
alternator and motorized wheels.
Stop the truck immediately and
notify maintenance personnel if the warning light illu-
minates. Damage to electrical components may
result without proper ventilation of rotating equip-
ment.
D5. Not Used
Not currently used. Reserved for
future use or options.
E5. Not Used
Not currently used. Reserved for
future use or options.
A6. Not Used
Not currently used. Reserved for
future use or options.
B6. Not Used
Not currently used. Reserved for
future use or options.
C6. Not Used
Not currently used. Reserved for
future use or options.
D6. Service Engine
When the key switch is turned
ON (before starting engine),
this amber service engine indi-
cator light will illuminate for
about two seconds and then
turn off if no faults are detected
in the system. If this indicator remains on (or flashes
when equipped with Centry™ Fuel Control system),
alert maintenance personnel as soon as possible.
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 for warning
faults, or it will turn on and flash for more severe
faults that can affect engine operation and require
immediate attention.
• 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.
NOTE: Active fault conditions must be corrected
as soon as possible.
Refer to Lamp Test/Diagnostic Test Switch for
additional description of this light's function.
E6. Not Used
Not currently used. Reserved for
future use or options.
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