D2. Hydraulic Oil Filter Monitor; E2. Low Fuel; A3. Parking Brake; B3. Service Brake - Komatsu 930E-4SE Operation & Maintenance Manual

Operator Cab And Controls - Section 32
Page 32-22

D2. Hydraulic Oil Filter Monitor

This amber indicator light indicates
a restriction in the high pressure
filter assembly for either
steering or hoist circuit. This light
will come on before the filters start
to bypass. Notify maintenance
personnel as soon as possible after
the light comes on.
NOTE: The filter monitor warning light may also
illuminate after the engine is initially started if the oil
is cold. If the light turns off after the oil is warmed,
filter maintenance is not required.

E2. Low Fuel

When the usable fuel remaining in
the tank is approximately 950 liters
(250 gallons), this amber indicator
light will flash twice and the
warning buzzer will also sound
twice. Then, the warning buzzer
will sound once more and the
indicator light will remain illuminated. This will repeat
every 15 minutes while the fuel level is still low.

A3. Parking Brake

This amber indicator light will
illuminate when the parking brake
is applied. The parking brake is
applied by placing the directional
control lever in the PARK position.
If the parking brake light is flashing,
that is an indication that the parking
brake is requested, but has not applied. The operator
must not leave the cab. Notify maintenance person-
nel immediately.
This light will also flash along with service brake
indicator light (B3) and maintenance monitor
indicator light (E7) to indicate that the service brakes
or parking brake should be applied under the current
operating conditions, but are not applied.
the

B3. Service Brake

This amber indicator light will
illuminate when the service brake
pedal is applied or when wheel
brake lock or emergency brake is
applied. Do not attempt to drive the
truck from a stopped position with
the service brakes applied, except
as noted in Section 30, Operating Instructions -
Starting On A Grade With A Loaded Truck.
This light will flash if the interface module (IM)
detects any service brake abnormalities. This light
will also flash along with parking brake indicator light
(A3) and maintenance monitor indicator light (E7) to
indicate that the service brakes or parking brake
should be applied under the current operating
conditions, but are not applied.

C3. Body Up

This amber indicator light will
illuminate if the body
completely down on the frame. The
truck should not be driven until
body is down and the light is off.

D3. Dynamic Retarding

This amber indicator
illuminates whenever the brake/
retarder pedal (or retarder lever) is
operated, retarder speed control
(RSC) switch is activated, or the
automatic overspeed
circuit is energized, indicating that the dynamic
retarding function of the truck is operating.
8/11 OM3245
is not
light
retarding