Genie Z-45/22, Руководство по обслуживанию

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7 - 18 Genie Z-45/22 Part No. 29487
Service Manual - First Edition Section 7 - Repair Procedures
PRIMARY BOOM COMPONENTS
3-4
Extension Cylinder
The extension cylinder extends and retracts the
primary boom steel extension tube. It can only be
removed from the platform end of the primary
boom. The extension cylinder is equipped with
counterbalance valves to prevent movement in the
event of a hydraulic line loss.
How to Remove the
Extension Cylinder
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 Raise the secondary boom and place a 4x4x31
inch (78cm) block between the chassis
counterweight and the upper mid-pivot.
Carefully lower the secondary boom onto the
block.
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.
b
a
c
a extension boom end cap
b extension boom
c extension cylinder rod-end weldment
fasteners
d primary boom
2 Raise the primary boom until the extension
boom end cap is 5 feet (1.5m) off the ground.
3 Extend the extension tube to the primary boom
tube 17 inches (43cm). Then secure to prevent
any additional movement
4 Remove the extension boom end cap.
5 Remove the fasteners from the cylinder rod-
end weldment.
The bolts that secure the cylinder
rod-end weldment are installed
with Loctite
®
removable thread
sealant. It may be necessary to
heat the bolts and the surrounding
area to remove them. Do not
reuse the bolts.
6 If the function is operational, extend the
extension cylinder until the rod-end weldment
clears the end of the extension tube.
7 Disconnect and plug the extension cylinder
hydraulic hoses. Cap the fittings on the
cylinder.
a
b
c
d