Terex Genie S-80, Service And Repair Manual

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Service and Repair Manual March 2018
Boom Components
42 S®- 80 • S® -85 • S® -80X Part No. 1269074GT
22 Lift the boom extension cylinder with the crane
until it clears the cylinder saddle inside the
number 2 boom tube.
23 Carefully support and slide the extension
cylinder out of the boom.
Crushing hazard. The extension
cylinder could fall when removed
from the extension boom if not
properly supported.
Component damage hazard. Be
careful not to damage the cable
break limit switch.
Component damage hazard. Be
careful not to damage the
counterbalance valves on the
primary boom extension cylinder
when removing the cylinder from
the primary boom.
Note: During removal of the extension cylinder, the
overhead crane strap will need to be carefully
adjusted for proper balancing.
4-5
Boom Extend and Retract Cables
How to Adj ust the Extend/R etract C abl es
How to Adjust the Boom
Extend/Retract Cables
The boom extend/retract cables are responsible for
the extension and retraction of the number 3 boom
tube. Proper adjustment of the boom extend/retract
cables and related components on a regular basis
is essential to good machine performance and safe
machine operation. The boom extend and retract
functions should operate smoothly and be free of
hesitation, jerking and unusual noise.
Note: Perform this procedure with the boom in a
horizontal position.
1 Start the engine from the ground controls.
2 Raise the boom to a horizontal position.
3 Fully retract the boom.
4 Stop the engine.
5 Remove the boom end cover retaining
fasteners and remove the cover.
6 Inspect the threaded ends of the boom extend
cables. The threads must be clean and in
good condition with no damaged threads.
7 Locate the retract cable adjustment nut on the
bottom of the number 1 boom tube at the
platform end of the boom. Loosen the nut, but
do not remove the nut.