Terex Genie SX-150, Service And Repair Manual

Page: 63 / 282

December 2019 Service and Repair Manual
Boom Components
Part No. 1300669GT SX ™ -150 51
How to Disassembl e the Primary Boom How to Disassemble the Primary
Boom
Bodily injury hazard. This
procedure requires specific repair
skills, lifting equipment and a
suitable workshop. Attempting
this procedure without these skills
and tools could result in death or
serious injury and significant
component damage. Dealer
service is strongly recommended.
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 Level the boom.
2 Remove the platform. Refer to Repair
Procedure, How to Remove the Platform.
3 Remove the platform mounting weldment and
the platform rotator. Refer to Repair
Procedure,
How to Remove the Platform
Rotator .
4 Remove the jib boom. Refer to Repair
Procedure, How to Remove the Jib Boom.
5 Remove the jib boom lift cylinder. Refer to
Repair Procedure,
How to Remove the Jib
Boom Lift Cylinder .
6 Remove the jib boom bellcrank. Refer to
Repair Procedure,
How to Remove the Jib
Boom Bellcrank .
7 Remove the boom primary extension cylinder.
Refer to Repair Procedure, How to Remove
the Boom Primary Extension Cylinder .
8 The boom tubes can be disassembled without
removing the cable track assembly. If you
choose to remove the cable track assembly,
Refer to Repair Procedure,
How to Remove
the Cable Track .
9 Remove the brackets supporting the cable
track assembly from the #3 and #4 boom
tubes
10 Place blocks between the cable tracks and
cable tubes for support.
11 Strap together the boom cable tubes, blocks of
wood, and the cable track.
Component damage hazard.
Cables, hoses, boom cable
tube and cable track can be
damaged if they are kinked or
pinched.
Remove the #3 and #4 boom tubes:
12 At the platform end, remove the #4 boom
retract bolt and secure the retract cables to the
#4 boom tube.
13 Tag and disconnect the harness to limit switch
3RS and 4EOS. Remove the bracket and limit
switch from the #2 boom tube.
Tip-over hazard. Failure to
install the correct proximity
and/or limit switches in the
correct location will result in the
machine tipping over, resulting
in death or serious injury.
14 Remove the red locking brackets from the
#4 extend cable pivot assembly.
15 Remove the nuts on the #4 extend cables and
remove the #4 pivot assembly.
16 At the pivot end of the machine, remove the
shims from the wear pads between the #2 and
#3 boom tubes.
Note: Pay careful attention to the location and
amount of shims used with each wear pad.
17 Using a strap, secure the #2 tube to the
#1 tube.