Genie Z-45/25 Service Manual page 377

First Edition • Second Printing
21 Remove the primary boom pivot pin with a soft
metal drift, then carefully remove the primary
boom from the machine and place it on a
structure capable of supporting it.
Crushing hazard. If the overhead
crane is not properly attached,
the boom and may become
unbalanced and fall when it is
removed from the machine.
How to Disassemble the Primary
Boom
Complete disassembly of the
boom is only necessary
if the outer or inner boom tube
must be replaced. The extension
cylinder can be removed without
completely disassembling the
boom. See 4-4, How to Remove
the Primary Boom Extension
Cylinder .
1 Remove the primary boom. See 4-2, How to
Remove the Primary Boom .
2 Place blocks under the barrel end of the primary
boom extension cylinder for support.
3 Remove the pin retaining fastener from the
extension cylinder barrel-end pivot pin at the
pivot end of the primary boom. Use a soft metal
drift to remove the pin.
Part No. 52709
4 Remove and label the location of the wear pads
from the platform end of the primary boom.
5 Support and slide the extension tube out of the
boom tube.
6 Remove the external snap rings from the
extension cylinder rod-end pivot pin at the
platform end of the extension tube. Use a soft
metal drift to remove the pin.
7 Support and slide the extension cylinder out of
the base end of the extension tube. Place the
extension cylinder on blocks for support.
Genie Z-45/25 & Genie Z-45/25J
Section 7 • Repair Procedures
PRIMARY BOOM COMPONENTS
Pay careful attention to the
location and amount of shims
used with each wear pad.
Crushing hazard. The primary
boom extension tube may become
unbalanced and fall when it is
removed from the primary boom
tube if it is not properly supported.
During removal, the overhead
crane strap will need to be
carefully adjusted for proper
balancing.
Crushing hazard. The extension
cylinder may become unbalanced
and fall when it is removed from
primary boom extension tube if it
is not properly supported.
During removal, the overhead
crane strap will need to be
carefully adjusted for proper
balancing.
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