Operation Mobile Belt Loader Model 660
Operation Manual
CD397-Oper Operation - 1 - 9
DCEmergencyPump
In the case of Main Hydraulic Pump failure, the DC-operated Emergency Pump is available for
the temporary activation of the Hydraulic Lift Cylinders and the Conveyor Motor. The emergency
pump cannot operate the steering and braking system.
The 660 belt loader is equipped with an electrically opera
ted emergency hydraulic pump to allow
short term operation of the hydraulic system for raising or lowering the conveyor, in the event of
an engine failure. The hydraulic pump relies on the 12 volt starter battery for energy.
The purpose of the emergency hydraulic pump is to enable lowering of the conveyor into its nor-
mal down position, or to retrieve luggage that may be on the belt at the time of engine failure. It
may a
lso be used to gain access to the engine compartment if the conveyor is in the down posi-
tion.
The emergency hydraulic pump is not to be used to load or u
nload luggage to or from the hold of
the plane at any time.
The emergency hydraulic pump is activated by a butt
on on the instrument panel that is labeled
“Emergency Hydraulic Pump”. Pressing the button down activates the pump, releasing the button
stops the operation of the pump, thus all the time hydraulic power is required during emergency
conditions the button should be depressed.
The Emergency Hydraulic Pump should be tested daily before equipment use, any concerns
ab
out its operation should be reported to the crew supervisor.
CAUTION: The emergency hydraulic pump should only be operated when
the regular propulsion engine is OFF or NOT operating.
CAUTION: Use the safety props to support the conveyor at all times when
performing maintenance under the conveyor.
NOTE:
There is an electrical safety circuit for the emergency pump, located next to the
hydraulic tank, it will trip if the current drawn from the battery to operate the emer-
gency pump exceeds preset limits. It may be reset by pressing down the red but-
ton marked 105.
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