
Service and Repair Manual
October 2016
Repair Procedures
42
SX-135 XC
Part No. 1263382
19 Secure the jib boom lift cylinder to the jib
boom with a strap or other suitable device.
20 Raise the jib boom to a horizontal position
using the overhead crane.
21 Attach a second lifting strap from the
overhead crane to the pivot end of the jib
boom.
22 Remove the pin retaining fastener from the jib
boom pivot pin. Do not remove the pin.
23 Place a block under the jib boom level
cylinder for support. Protect the cylinder rod
from damage.
24 Use a soft metal drift to tap the pin halfway
out in one direction and lower one side of the
jib boom bellcrank. Tap the pin in the other
direction and lower the other side of the jib
boom bellcrank.
25 Use a soft metal drift to remove the jib boom
pivot pin. Remove the jib boom from the
machine and place it on a structure capable of
supporting it.
Crushing hazard. The jib boom
may become unbalanced and
fall when it is removed from the
machine if it is not properly
supported by the overhead
crane.
3-2
Jib Boom Lift Cylinder
How to Remove the Jib Boom Lift
Cylinder
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1 Raise the jib boom slightly and place blocks
under the platform mounting weldment. Lower
the jib boom until the platform is resting on the
blocks just enough to support the platform.
Note: Do not rest the entire weight of the boom on
the blocks.
2 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.
3 Support the rod end of the jib boom lift
cylinder with a suitable lifting device.
Содержание Genie SX-135 XC
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Страница 242: ...Service and Repair Manual October 2016 232 Perkins 854F 34T Engine Electrical Schematic ...
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