Genie Industries Z-30/20, Руководство по обслуживанию

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Part No. 43063 Genie Z-30/20 7 - 13
Service Manual - Third Edition Section 7 - Repair Procedures
19 Attach an overhead crane to the rod end of the
primary boom lift cylinder.
20 Remove the pin retainer from the primary boom
lift cylinder rod-end pin. Then use a soft metal
drift to remove the pin.
Crushing hazard. The boom lift
cylinder will fall unless it is
properly supported.
21 Lower the rod end of the lift cylinder onto the
turntable counterweight.
22 Attach a lifting strap from an overhead crane to
the approximate center point of the boom.
23 Remove the pin retaining fastener from the
boom pivot pin.
24 Remove the primary boom pivot pin with a soft
metal drift.
Crushing hazard. If the overhead
crane is not properly attached,
the primary boom may become
unbalanced and fall when it is
removed from the machine. Do
not remove the primary boom
from the machine until it is
properly balanced.
25 Lift the boom slightly and adjust the strap as
necessary to balance the primary boom.
26 Remove the primary boom from the machine.
How to Disassemble
the Primary Boom
Complete disassembly of the
boom is only necessary
if the outer or inner boom tubes
must be replaced. The extension
cylinder can be removed without
completely disassembling the
boom. See 3-4, How to Remove
the Extension Cylinder.
1 Remove the boom. See 3-2,
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 clevis pin. Remove the
clevis pin.
Always use a new cotter pin when
installing a clevis pin.
4 Remove and label the wear pads from the outer
boom tube, at the platform end of the boom.
Pay careful attention to the
location and amount of shims
used with each wear pad.
5 Support the extension tube with an overhead
crane at the platform end of the boom.
Crushing hazard. The boom
extension tube will fall when it is
removed from the primary boom
tube if it is not properly supported.
6 Support and slide the outer tube off of the inner
tube. Place the outer tube on blocks for
support.
During removal, the overhead
crane strap will need to be
carefully adjusted for proper
balancing.
7 Remove the retaining fasteners from the
extension cylinder rod-end mounting brackets
at the platform end of the inner tube.
PRIMARY BOOM COMPONENTS