A5. No Power; B5. Propulsion System Warning; C5. Propulsion System Temperature; D5. System/Component Failure - Komatsu 930E-4SE Operation & Maintenance Manual

Operator Cab And Controls - Section 32
Page 32-24

A5. No Power

This red "no retard/no propel"
indicator light indicates that a fault
has occurred which has eliminated
the retarding and propulsion
capability. A warning buzzer will
also sound.
If this condition occurs, the operator should safely
stop the truck, move the directional control lever to
PARK, turn off the engine, and notify maintenance
personnel immediately.

B5. Propulsion System Warning

This amber indicator light indicates
a drive system fault has occurred.
Many faults will result in a speed
limit restriction, which could be as
low as 16 kph (10 mph). The
operator must notify maintenance
personnel immediately.

C5. Propulsion System Temperature

This amber indicator
indicates that the drive system
temperature is above a certain
level. When this condition occurs,
the operator should consider
modifying truck operation in order
to reduce system temperature.
The operator is not required to stop the truck at this
time.

D5. System/Component Failure

This red warning light indicates
that the interface module system
detected a failure somewhere on
the truck. There are
conditions that could trigger the
light to illuminate.
If this warning light illuminates, the operator should
safely stop the truck, move selector switch to PARK,
shut the engine off, and notify maintenance
personnel immediately.
light
many
E5. Battery Charging System
Failure
The red warning light indicates a
problem has been detected in the
charging system, and system
voltage is outside the normal
operating range.
If this light illuminates, the safely stop the truck, move
directional control lever to PARK, shut off the engine,
and notify maintenance personnel immediately. If
truck operation continues, and the battery voltage
drops below 20 volts, the propulsion system will not
operate, but retarding will still be available.
The following conditions will also illuminate this light:
• Battery voltage below 24.5V, engine rpm above
1450. Resets at 26V.
• Battery voltage below 23V with engine off.
Resets at 25.5V.
• Battery voltage above 32V with engine operating.
Resets at 27.5V.

A6. No Propel

This red warning light indicates that
a fault has occurred which has
eliminated the propulsion
capability. If this condition occurs,
the operator should safely stop the
truck, move the directional control
lever to PARK, turn off the engine,
and notify maintenance personnel immediately.
B6. Propel System At Rest
This amber indicator
illuminates if the AC drive system is
de-energized and propulsion is not
available. This light is activated
when rest switch (4, Figure 32-8) is
turned ON and the AC drive system
is de-energized. Link energized
light (12, Figure 32-3) on the rear of the center
console should NOT be illuminated at this time.
8/11 OM3245
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