Genie GTH-636, Service And Repair Manual

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Service and Repair Manual April 2018
Boom Components
14 GTH-636 Part No. 1287209GT
3 Tilt the forks back to pivot the quick attach into
the attachment.
4 Insert the quick attach lock pin all the way
through the attachment and be sure the quick
attach lock lever is secured in the notch on the
pin.
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 to insure retract chain is slack. It may be
necessary to loosen the extend chain adjuster.
5 Turn the machine off and remove the key from
the key switch.
6 Working under the boom, remove the
fasteners securing the single-chain tensioner
to the bottom of boom tube number 1.
Note: When installing the new chain, the chain
tensioner should be mounted in the two most
rearward holes.
7 Remove the inspection cover from the pivot
end of the boom. Remove the extension
cylinder. Refer to How to Remove the
Extension Cylinder in the Repair section.
8 Remove the retaining clip from the retaining
pin and then drive the pin securing the chain
anchor to the boom.
9 Working at the pivot end of the boom, pull the
chain out of the boom.