Inspect The Boom Extend/Retract Cables - Genie S-105 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-22
Inspect the Boom Extend/
Retract Cables
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
The boom extend/retract cables are responsible for
the extension and retraction of the number 3 boom
tube on the S-100 and S-105, and the numbers 2
and 3 boom tubes on the S-120 and S-125.
Inspecting for foreign objects, damage and/or
improper adjustment of the boom extend/retract
cables 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 the
stowed position and the engine off.
1 Remove the boom end cover from the pivot end
of the boom.
a boom end cover
b side access covers
c cable ends (located
underneath the boom)
2 Remove the retaining fasteners from the access
covers located on the side of the boom at the
platform end of the machine. Remove the
covers.
3 - 42
3 Visually inspect the cables and components
through both inspection holes for the following:
• Frayed or broken wire strands
• Kinks or crushed cables
• Corrosion
• Paint or foreign materials on the cables
• Split or cracked cable ends
• Cables are on all pulleys
• Cables have equal tension
• Cables at end of adjustment range
• No Broken or damaged pulleys
• No Unusual or excessive pulley wear
• All fasteners in place and secure
Note: A flashlight and inspection mirror may be
necessary to thoroughly inspect the above items.
Note: A pulley groove gauge should be used to
check the condition of the pulleys.
4 Replace the cables if any damage is found.
5 At the pivot end of the boom, visually inspect for
the following:
• The red locking bracket is securely installed
over the cable adjustment bolts
6 Install the plastic cover at the pivot end of the
boom and access panels on the sides of the
boom.
7 Start the engine from the platform controls.
8 Extend the boom approximately 2 feet (0.6 m).
9 Retract the boom. While retracting the boom,
visually inspect the number 2 and number 3
boom tubes.
Result: The number 2 should not move more
than
boom tube begins to retract.
Note: If the number 2 boom tube moves more than
1 / inch (13 mm) before the number 3 boom tube
2
begins to retract, the boom extend/retract cables
need to be adjusted. See Repair Procedure 4-5,
How to Adjust the Boom Extend/Retract Cables.
S-100 • S-105 • S-120 • S-125
1
/ inch (13 mm) before the number 3
2
June 2011
REV E
Part No. 102916