Grove Published 1-20-2017, Control # 468-02 3-7
CD5515-2/YB5515-2 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
Low Brake Pressure Indicator
The Low Brake Pressure Indicator (20) illuminates red when
the pressure of the brake system falls below the operational
range. Stop the crane immediately and determine the cause
of the low brake pressure. Do not drive the crane until the
problem has been repaired. The light will illuminate briefly
when the brake system charges during operation.
Low Engine Oil Pressure Indicator
The Low Engine Oil Pressure Indicator (21) illuminates red
when the engine oil pressure falls below the operational
range. Lower the load to the ground and stop the engine until
the cause of the low engine oil pressure is resolved.
Battery Charge Indicator
With the engine running, the Battery Charge Indicator (22)
illuminates red if battery system voltage is below nine (9)
volts, engine ECM voltage is below nine (9) volts, or there is
no alternator charge signal present.
If the engine is running and the Battery Charge Indicator
illuminates, investigate possible alternator, alternator fuse, or
alternator wiring problems.
When the engine is not running and the Ignition Switch is in
the ACC or RUN position, the Battery Charge Indicator turns
on to indicate the batteries are being drained and not being
charged.
Transmission Oil Temperature Indicator
The Transmission Oil Temperature Indicator (23) illuminates
red during high transmission oil temperature conditions. A
warning buzzer will also sound.
Low Transmission Oil Pressure Indicator
The Low Transmission Oil Pressure Indicator (24)
illuminates red during low transmission oil pressure
conditions. A warning buzzer will also sound. If the light
illuminates, shut down the engine immediately and do not
restart it until the problem has been repaired.
Crane Level Indicator
This is a bubble-type indicator (Figure 3-5) that allows the
operator to level the crane when using the outrigger controls.
See Bubble Level Adjustment, page 3-17.
Engine Warning and Stop Lights
The engine warning light is part of a system that monitors
engine operating conditions. When an operating condition is
outside of calibration limits an engine derate results.
In operation, an engine electronic control module monitors
engine operating conditions while the engine is running. If
one of the critical operating conditions exceeds the engine
protection limit, an engine derate will occur and the warning
light will illuminate. The severity of the derate will vary
according to which engine operating condition has exceeded
its engine protection limit. Also, the severity of the derate
may vary in relation to the severity of the event (Example:
Coolant temperature is slightly above a threshold for a short
period of time will result in a mild derate compared to a
coolant temperature over a threshold for a longer time).
If the condition persists, the stop lamp (Figure 3-4) will flash
to warn the driver that the engine should be shut down and
the problem resolved before starting the engine again.
NOTE: If the engine stop light is illuminated, lower any load
and shut off the engine. If the engine is not shut off,
damage to the engine could occur. Before starting
the engine again locate and resolve the problem.
Rated Capacity Limiter (RCL)
The RCL (1, Figure 3-6) provides information on angle, load,
radius, capacity, etc. and allows the operator to set limits for
these variables.
For operating instructions, refer to the RCL manual provided.
WARNING
When the low brake pressure warning light is illuminated,
immediately stop and shutdown the crane. DO NOT drive
the crane with the warning light illuminated. Brake failure
is possible and the result could be serious personal injury
and property damage.
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