April 2021
Service and Repair Manual
Boom Components
Part No. 1288652GT
S
®
-60/65 XC
™
• S
®
-60/65
HF • S
®
-60/65 TraX
™
55
24 Lift the boom extension cylinder with the
crane until it clears the cylinder saddle inside
the number 2 boom tube.
25 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/Retract Cables
4-5
Boom Extend/Retract Cables
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 Fully retract the boom.
2 Remove the boom end cover from the pivot
end of the boom while guiding the small cable
from the string potentiometer out of the slot of
the cover. Rest the cover and string
potentiometer on the counterweight.
Component damage hazard. The
cable from the string
potentiometer can become
damaged if it is kinked or pinched.
3 Inspect the threaded ends of the boom extend
cables. The threads must be clean and in
good condition with no damaged threads.
Содержание Genie S-60 HF
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