July 2021
Service and Repair Manual
Secondary Boom Components
Part No. 1312350GT
Z
®
-45/25 • Z
®
-45/25J
45
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 suitable lifting device 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.
15 Repeat steps 11 through 14 for the other
secondary boom lift cylinder.
Crushing hazard. The secondary
boom lift cylinder could become
unbalanced and fall when
removed from the machine if not
properly attached to the suitable
lifting device.
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.
16 Attach a lifting strap from an suitable lifting
device to the upper pivot for support. Do not
lift it.
17 Attach a lifting strap from a second suitable
lifting device 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.
20 Remove the number 1 arm from the machine.
Crushing hazard. The number
1 arm could become unbalanced
and fall when removed from the
machine if not properly attached
to the suitable lifting device.
Crushing hazard. The upper
pivot could fall when the number
1 arm is removed from the
machine if not properly
supported by the suitable lifting
device.
21 Using a suitable lifting device attached to the
upper pivot, raise the secondary boom
assembly approximately 30 inches / 76 cm.
22 Insert a 4 x 4 x 11 inch / 10 x 10 x 28 cm
block between the number 2 arm and the
boom rest. Then lower the secondary boom
assembly onto the block.
Crushing hazard. The secondary
boom assembly could fall if not
properly supported by the 4 x 4 x
11 inch / 10 x 10 x 28 cm block.
Содержание Genie Z-45/25 Bi-Energy
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