3 - 26
S-100 • S-105 • S-120 • S-125
Part No. 1268494
March 2017
Section 3 • Repair Procedures
3-1
Jib Boom,
S-105 and S-125 Models
How to Remove the Jib Boom
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring on the fitting and/or hose end must be
replaced and then torqued to specification during
installation. Refer to Specifications,
Hydraulic
Hose and Fitting Torque Specifications.
1 Remove the platform. See Repair Procedure,
How to Remove the Platform
.
2 Remove the platform mounting weldment
and the platform rotator. See Repair Procedure,
How to Remove the Platform Rotator
.
3 Remove the hose and cable cover retaining
fasteners from the jib boom leveling arm.
Remove the hose and cable cover from the
machine.
4 Support the jib boom with a suitable lifting
device.
5 Tag, disconnect and plug the jib boom lift
cylinder hydraulic hoses. Cap the fittings on the
cylinder.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
6 Support the barrel end of the cylinder with a
suitable lifting device.
7 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
8 Use a soft metal drift to remove the pin and let
the cylinder hang down.
9 Attach a lifting strap from an overhead crane to
the jib boom.
10 Remove the pin retaining fastener from the jib
boom pivot pin.
11 Use a soft metal drift to remove the pin and
remove the jib boom from the primary boom.
Crushing hazard. The jib boom
may become unbalanced and
fall when it is removed from
the machine if it is not properly
supported.
Jib Boom Components, S-105 / S-125 Models
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