Terex Genie Z-45/25 Bi-Energy, Service Manual, Page: 93 / 213

Part No. 237062 Z-45/25 Bi-Energy • Z-45/25J Bi-Energy 4 - 21
September 2015 Section 4 • Repair Procedures
4 Remove the master cylinder. See 4-5, How to
Remove the Platform Leveling Master Cylinder .
5 Attach a lifting strap from an overhead crane to
the lug on the rod end of the primary boom lift
cylinder. Then raise the primary boom lift
cylinder with the crane, to a vertical position.
6 Tag, disconnect and plug the hydraulic hoses at
the primary boom lift cylinder. 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.
7 Remove the pin retaining fastener from the
primary boom lift cylinder barrel-end pivot pin.
8 Use a slide hammer to remove the pin. Remove
the primary boom lift cylinder from the machine.
Crushing hazard. The primary
boom lift cylinder could become
unbalanced and fall if not properly
supported by the overhead crane.
9 Tag, disconnect and plug the hydraulic hoses
on both of the secondary boom lift cylinders.
Cap the fittings on the cylinders.
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.
SECONDARY BOOM COMPONENTS
5-1
Secondary Boom
How to Disassemble the
Secondary Boom
Bodily injury hazard. The
procedures in this section require
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 required.
Follow the disassembly steps to the point required
to complete the repair. Then re-assemble the
secondary boom by following the disassembly
steps in reverse order.
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 Section 2,
Hydraulic Hose and Fitting
Torque Specifications.
1 Remove the platform.
2 Z-45/25J: Remove the jib boom.
See 3-1, How to Remove the Jib Boom.
3 Remove the primary boom. See 4-2, How to
Remove the Primary Boom .