Genie GTH-1048, Service Manual

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Section 4 • Repair Procedures March 2015
Part No. 123701 GTH-1048 • GTH-1056 4 - 9
BOOM COMPONENTS
6 GTH-1056: Working at the fork end of the
boom, loosen evenly the fasteners securing the
single-chain tensioners to the top of boom tube
number 0. After noting the orientation and
assembly order of the components, remove the
fasteners and pull the tensioners free of the
boom. Refer to Illustration 1.
7 GTH-1048: Working at the fork end of the
boom, loosen the fasteners securing the
single-chain tensioners to the top of boom tube
number 1. After noting the orientation and
assembly order of the components, remove the
fasteners and pull the tensioners free of the
boom. Refer to Illustration 2.
8 Select a chain tensioner. Remove the bow tie
clip securing the chain anchor pin to the chain
assembly. Remove the chain anchor pin from
the assembly and remove the chain anchor
from the tensioner assembly.
9 Repeat this procedure, beginning with step 8,
for the other chains.
10 Working at the fork end of the boom, select a
chain. Securely connect a 30 foot / 10 m length
of rope to the end of the chain. Securely tie off
the other end of the rope to the boom structure.
11 GTH-1056: Remove the inspection cover from
the pivot end of the boom and locate the chain
anchors of the extension chains at the top of
boom tubes 2 and 3.
GTH-1048: Remove the inspection cover from
the pivot end of the boom and locate the chain
anchors of the extension chains at the top of
boom tube 3.
12 Remove the fasteners securing the extension
chain anchors to the boom tubes.
13 Working at the pivot end of the boom, pull the
chain out of the boom.
Note: Rope coming loose from the chain during
removal may result in a difficult reassembly. Be
sure the rope is securely attached to the chain and
boom structure before pulling the chain out of the
boom.
14 On a workbench, remove the bow tie clip
securing the chain anchor pin to the chain
assembly. Remove the pin and chain anchor
pin from the assembly.
Illustration 2
a extension chains
b single-chain tensioner
c boom tube number 1
d boom tube number 2
e boom tube number 3
e d c
a b