Boom Extend And Retract Cables - Terex SX135H-101 Service And Repair Manual

Service and Repair Manual
Boom Components
8 Support and slide the primary boom extension
cylinder out of the boom assembly while
guiding the cables out of the boom and place
it on a structure capable of supporting it.
Crushing hazard. The primary
boom extension cylinder may
become unbalanced and fall
when it is removed from the
boom if it is not properly
supported and attached to the
overhead crane.
Component damage hazard.
Cables can be damaged if they
are kinked, pinched or snagged
during removal.
Note: During removal, the overhead crane strap
will need to be adjusted for proper balancing.
64
4-5

Boom Extend and 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.
1 Start the engine from the ground controls.
2 Raise and extend the boom approximately
15 feet / 3.8 m.
3 Fully retract the boom and lower to the
horizontal position.
4 Stop the engine.
5 Measure the distance between boom tubes
#1 and #2, measuring from the points
identified as (8) and (9). (Illustration 1) This is
dimension "A".
Note: The distance should be approximately 1 in /
2.6 cm. The actual measurement will be a function
of the primary extend/retract cylinder.
SX-135 XC
October 2016
Part No. 1263382