Genie Z-60/34, Service Manual

Page: 93 / 183

Part No. 75861 Genie Z-60/34 4 - 19
November 2003 Section 4 • Repair Procedures
REV A
How to Disassemble the
Primary Boom
Complete disassembly of the
primary boom is only necessary if
the outer or inner primary boom
tubes must be replaced. The
extension cylinder can be
removed without completely
disassembling the primary boom.
See 4-4, How to Remove the
Primary Boom Extension Cylinder.
1 Remove the primary boom.
See How to Remove the Primary Boom.
2 Place blocks under the extension cylinder for
support.
3 Remove the cotter pin from the extension
cylinder barrel-end pivot pin. Use a soft metal
drift to remove the pin.
4 Remove and label the wear pads from the
platform end of the primary boom.
Pay careful attention to the
location and amount of shims
used with each wear pad.
5 Support and slide the extension boom and
extension cylinder out of the platform end of the
primary boom.
Crushing hazard. The primary
boom extension tube could
become unbalanced and fall when
removed from the primary boom
tube if not properly supported.
During removal, the overhead
crane strap will need to be
carefully adjusted for proper
balancing.
6 Remove the external snap rings from the
extension cylinder rod-end pivot pins. Use a
soft metal drift to remove the pins.
7 Support and slide the extension cylinder out
of the platform end of the extension boom.
8 Remove and label the wear pads from the
extension boom.
Pay careful attention to the
location and amount of shims
used with each wear pad.
PRIMARY BOOM COMPONENTS