HAULOTTE GROUP
3 OPERATION
33
HAND PUMP
PROPORTIONAL VALVE
ROTATION BUTTON
RETRACT
BUTTON
MANUAL BOOM OPERATION
Manual retraction, rotation and lowering functions allow the booms to be moved and lowered during
hydraulic power interruption or failure.
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 can be used to manually retract the booms or rotate the boom
turntable.
To begin manual retraction or rotation, turn the proportional valve counterclockwise until it stops, and
insert pump handle, or tire iron into the pump handle fitting.
Manual Retraction
Begin manual retraction or rotation, by turning the proportional valve counterclockwise until it stops;
insert the pump handle into the pump handle fitting. Pushing and holding the
RETRACT
button while
simultaneously actuating the
HAND PUMP
will retract the secondary boom.
Refer to Figure 3-8.
Manual Rotation
To rotate the
TURNTABLE
counterclockwise:
Push and hold the
ROTATION
button
IN
.
Simultaneously actuate the
HAND PUMP
.
To rotate the
TURNTABLE
clockwise:
Pull
the
ROTATION
button
OUT
.
Simultaneously actuate the
HAND PUMP
.
NOTE: Turn
the
PROPORTIONAL VALVE
clockwise to return it to its original position before
lowering the booms or resuming normal operation.
Figure 3-8. Hand Pump Controls for Manual Operation
Summary of Contents for xlb-4725a
Page 1: ...OPERATOR S MAINTENANCE MANUAL B33 01 0104 Rev 4 August 2012...
Page 70: ...HAULOTTE GROUP 5 CYLINDER REPLACEMENT 70...
Page 78: ...HAULOTTE GROUP 6 DECAL REPLACEMENT 78 DECAL KIT ANSI...
Page 80: ...HAULOTTE GROUP 6 DECAL REPLACEMENT 80 IDENTIFICATION PLATES OPTIONAL EQUIPMENT ANSI...
Page 86: ...HAULOTTE GROUP 6 DECAL REPLACEMENT 86...
Page 92: ...HAULOTTE GROUP 7 OPTIONAL EQUIPMENT 92...
Page 98: ...HAULOTTE GROUP 8 MATERIAL SAFETY 98 MATERIAL SAFETY DATA SHEET POWERFLOW AW HVI HYDRAULIC OIL...
Page 116: ...HAULOTTE GROUP 9 ANSI REPRINT 116...
