Service and Repair Manual
April 2018
Boom Components
20
GTH-1056
Part No. 1287211GT
How to R eplace the R etraction C hain
How to Replace the Retraction
Chain
Note: Perform this procedure on a firm, level
surface with the boom in the stowed position and
the wheels chocked.
1 Start the engine and allow the engine to idle.
2 Raise the boom to a horizontal position.
3 Fully retract the boom.
4 Extend the boom approximately 1 inch /
2.5 cm.
5 Turn the machine off and remove the key from
the key switch.
6 Working at the fork end of the boom, loosen
the fasteners securing the dual-chain
tensioner to the top of boom tube number 1.
After noting the orientation and assembly
order of the components, remove the
fasteners and pull the tensioner free of the
boom.
1 tube 3 extension chains
2 dual-chain tensioner
3 tube 2 extension chains
4 single-chain tensioner
5 boom tube number 0
6 boom tube number 1
7 boom tube number 2
8 boom tube number 3
7 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.
8 Remove the inspection cover from the pivot
end of the boom.
Содержание Genie GTH1056
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