BIL-JAX 3522A
MANUAL BOOM OPERATION
Manual retraction, rotation and lowering functions
allow the Model 3522A Articulating Boom Lift to be
moved and lowered during hydraulic power
interruption or failure. In each instance, refer to
Figure 3-5.
The following procedures for manual retraction,
rotation and lowering require a person on the ground
to operate the manual controls and hand pump.
The hydraulic hand pump is located in the pump
compartment. In case of a power failure, the hand
pump and selected hydraulic valve settings can be
used to manually retract the articulating boom or
rotate the boom turntable.
To begin manual retraction or rotation, turn
Proportional Valve counterclockwise until it stops,
and insert pump handle into the pump handle fitting.
Manual Retraction
Pushing and holding the Retract button while
simultaneously actuating Hand Pump will retract the
extension boom section.
Manual Rotation
To rotate the turntable clockwise: Push and hold
the Rotation button and simultaneously actuate
Hand Pump.
To rotate the turntable counterclockwise: Pull the
Rotation button out and simultaneously actuate
Hand Pump.
NOTE: Return proportional valve to its original
position before lowering the lift or
resuming normal operation.
RETRACT
BUTTON
ROTATION
BUTTON
HAND PUMP
ROTATION
BUTTON
PUMP HANDLE
FITTING
PUMP HANDLE
FITTING
PUMP HANDLE
FITTING
RETRACT
BUTTON
Figure 3-5. Hand Pump and Controls for Manual Lift Operation
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