Boom Extend/Retract Cables - Genie S-100 Service And Repair Manual

Section 3 • Repair Procedures
BOOM COMPONENTS
4-5

Boom Extend/Retract Cables

How to Adjust the Boom Extend/
Retract Cables
Properly adjusted extend/retract cables are
essential to safe machine operation. Failure to
maintain proper adjustment of the cables could
result in unsafe operating conditions and may
cause component damage. The boom extend and
retract functions should operate smoothly and be
free of hesitation, jerking and unusual noise.
Note: A flashlight may be necessary to be able to
see the extend/retract cables inside of the boom
assembly.
Note: Perform this procedure with the boom fully
retracted.
1 Start the engine from the ground controls.
2 Raise the boom to a horizontal position.
3 Stop the engine.
4 Remove the boom end cover from the pivot end
of the machine.
5 Locate the red locking bracket (c) covering the
cable adjustment bolts at the pivot end of the
boom (illustration 1).
6 Remove the retaining fastener from the red
locking bracket and remove the bracket from
the machine.
7 Locate the retract cable equalizer bolt under the
number 1 boom tube at the platform end of the
boom assembly (illustration 3).
8 Loosen the nylock (g) and jam nut (h) on the
cable tension equalizer bracket. Do not remove
the nuts.
3 - 50
d
9 At the pivot end of the boom (illustration 1),
turn the cable adjustment bolts (b) clockwise
to obtain 6
of the number 3 boom tube and the end of the
number 2 boom tube (d). As a guide (Illustration
2), the end of the extension cable coupling (i)
should be approximately mid-point (k) between
the guide plate (l) and the cable retainer
bracket (j). Illustration 2 is visible by removing
the boom side covers.
Note: Adjust the cable adjustment bolts evenly so
the cable break limit switch (a) stays centered in
the limit switch actuator (Illustration 1).
Note: If the distance is greater than 6
17 cm, loosen the extend cable adjustment bolts
and tighten the hex jam nut on the cable tension
equalizer bolt until the distance is less than
3
6 / inches / 17 cm. Loosen the jam nut and repeat
4
step 9.
S-100 • S-105 • S-120 • S-125
a limit switch
b extend cable adjustment bolts
c red cable adjustment locking bracket
d boom tube distance
Illustration 1
3
/ inches / 17 cm between the end
4
Part No. 1268494
March 2017
a
b
c
3
/ inches /
4