Terex Genie Z-45 DC, Service And Repair Manual, Page: 38 / 140

28 Z
®
-45 DC • Z
®
-45 FE Part No. 1297714GT
July 2020 Service and Repair Manual
Primary Boom Components
The primary boom cable track guides the cables
and hoses running up the boom. It can be repaired
link by link without removing the cables and
hoses that run through it. Removing the entire
primary boom cable track is only necessary when
performing major repairs that involve removing the
primary boom.
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 Locate the cables from the primary boom cable
track to the platform control box. Number each
cable and its entry location at the platform
control box.
2 Disconnect the cables from the platform control
box.
3 Remove the hose and cable cover from the
side of the jib boom. Remove the hose and
cable separators.
4 Remove the hose clamp on the primary boom
bellcrank.
5 Pull all of the electrical cables out of the plastic
cable track. Do not pull out the hydraulic hoses.
6 Tag, disconnect and plug the hydraulic
hoses from the "V1" and "V2" ports on the
counterbalance valve manifold located on
the platform rotator. Cap the fittings on the
manifold.
WARNING
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 Tag and disconnect the hydraulic hoses from
the platform leveling slave cylinder at the union
and connect them together using a connector.
Connect the hoses from the cylinder together
using a connector.
WARNING
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
.
8 Tag, disconnect and plug the hydraulic hoses
from the jib boom/platform rotate manifold. Cap
the fittings on the manifold.
WARNING
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
.
9 Tag, disconnect and plug the platform rotator
hydraulic hoses at the union located above the
primary boom lift cylinder. Cap the fittings on
the unions.
WARNING
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
.