Genie Z-45/22 Service Manual page 161

Section 7 - Repair Procedures
SECONDARY BOOM COMPONENTS
28 Carefully lift and remove the upper mid-pivot
from the machine.
29 Position the lifting strap from an overhead
crane at the center of the number 2 arm.
30 Remove the pin retaining fastener from the
lower mid-pivot to number 2 arm pivot pin. Use
a soft metal drift to remove the pin.
Crushing hazard. If the overhead
crane is not properly attached, the
number 2 arm may become
unbalanced and fall when it is
disconnected from the mid-pivot.
31 Carefully remove the number 2 arm from the
machine.
32 Remove the two cable clamps from the inside
of the lower mid-pivot.
33 Disconnect and remove the drive speed limit
switch from the primary boom rest.
34 Disconnect and plug the hydraulic hoses at the
secondary lift cylinders.
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.
35 Remove the pin retainers from each secondary
lift cylinder barrel-end pivot pin.
36 Place a rod through each barrel-end pivot pin
and twist to remove the pin. Remove each
secondary lift cylinder from the machine.
7 - 24
37 Remove the lower cable tray from the
number 3 arm.
38 Pull all of the cables and hoses through the
lower mid-pivot and out of the turntable pivot.
39 Attach the strap from an overhead crane to the
top tube of the lower mid-pivot. Then place a
hydraulic jack between arm numbers 3 and 4 at
the end nearest the lower mid-pivot.
40 Remove the pin retaining fastener from the
lower mid-pivot to number 3 arm pivot pin. Use
a soft metal drift to remove the pin.
41 Carefully lower the lower mid-pivot and
compression link away from the machine to a
resting position.
42 Position the lifting strap from an overhead
crane at the center of the number 3 arm.
Genie Z-45/22
Service Manual - First Edition
a
b
a pivot pin
b 10 to 12 inch (30cm) rod
Crushing hazard. The secondary
lift cylinders will fall when the
barrel-end pivot pins are removed
if they are not properly supported.
Component damage hazard.
Cables and hoses can be
irreparably damaged if they are
kinked or pinched.
Part No. 29487