Genie Z-45/22 Service Manual page 151

Section 7 - Repair Procedures
PRIMARY BOOM COMPONENTS
How to Remove the Primary
Boom
This procedure requires specific
repair skills, lifting equipment and
a suitable workshop. Attempting
this procedure without these skills
and tools may result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
1 Remove the platform. See 2-1, How to Remove
the Platform.
2 Disconnect and plug the hydraulic hoses at the
slave cylinder and the platform rotator
counterbalance valve.
Bodily injury hazard. Spraying
hydraulic oil can perforate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
3 Remove the fasteners that secure the upper
cable track tray to the primary boom.
4 Loosen the fasteners that secure the lower
cable track tray. Tie the upper and lower cable
tracks together with wire ties. Remove the
cable track assembly from the primary boom.
a wood block
b tie-wrap
c plastic cable track
7 - 14
a a
b c b
Genie Z-45/22
Service Manual - First Edition
Component damage hazard. The
primary boom cable track can be
damaged if it is twisted.
5 Raise the secondary boom and place a
4x4x31 inch (78cm) block between the chassis
counterweight and upper mid-pivot. Carefully
lower the secondary boom onto the block.
a
b
c
a upper mid-pivot
b 4x4x31 inch block
c counterweight
Crushing hazard. Keep hands
away from the block and all
moving parts when lowering the
secondary boom.
6 Raise the end of the primary boom 8 feet
(2.5m) off the ground, then extend the primary
boom 5 inches (12.5cm).
7 Attach an overhead crane to the primary boom.
Do not lift the primary boom.
Crushing hazard. If the overhead
crane is not properly attached, the
primary boom may become
unbalanced and fall when it is
disconnected from the upper
mid-pivot.
Part No. 29487