Genie Z-45/25 Service And Repair Manual page 63

September 2016
9 Tag, disconnect and plug the hydraulic hoses
on both of the secondary boom lift cylinders.
Cap the fittings on the cylinders.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
10 Remove the pin retaining fasteners from both
sides of the secondary boom lift cylinder
rod-end pivot pin and barrel-end pivot pin. Do
not remove the pins.
11 Attach a strap from an overhead crane to the
lug on the rod end of one of the secondary
boom lift cylinders for support. Do not apply
any lifting pressure.
12 Use a soft metal drift to drive the barrel-end
pivot pin half way out. Lower the barrel end of
the secondary boom lift cylinder and let it hang
down.
13 Use a soft metal drift to drive the rod-end pivot
pin half way out.
14 Remove the secondary boom lift cylinder from
the machine.
Part No. 1268548
Secondary Boom Components
15 Repeat steps 11 through 14 for the other
secondary boom lift cylinder.
16 Attach a lifting strap from an overhead crane
to the upper pivot for support. Do not lift it.
17 Attach a lifting strap from a second overhead
crane to the number 1 arm at the mid-point
between the upper pivot and mid-pivot.
18 Remove the pin retaining fasteners from the
number 1 arm pivot pins at the mid-pivot and
the upper pivot. Do not remove the pins.
19 Use a soft metal drift to drive both pins out.
Z-45/25 • Z-45/25J
Service and Repair Manual
Crushing hazard. The secondary
boom lift cylinder could become
unbalanced and fall when
removed from the machine if not
properly attached to the
overhead crane.
Component damage hazard.
When removing a secondary
boom lift cylinder from the
machine, be careful not to
damage the counterbalance
valve at the barrel end of the
cylinder.
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