Service and Repair Manual
November 2020
Secondary Boom Components
46
Z
®
-45 XC
™
• Z
®
-45 HF
Part No. 1268197GT
5-2
Secondary Boom Lift Cylinder
There are two secondary boom lift cylinders
incorporated in the structure of the secondary
boom assembly. These cylinders operate in
parallel and require hydraulic pressure to extend
and retract. Each secondary boom lift cylinder is
equipped with a counterbalance valve to prevent
movement in the event of a hydraulic line failure.
How to Remove the Secondary
Boom Lift Cylinder
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
Lower the secondary boom to the stowed
position.
2
Raise the primary boom so that it is above the
secondary boom lift cylinder rod-end pivot pin.
3
Tag, disconnect and plug the hydraulic hoses
on the secondary boom lift 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.
4
Remove the pin retaining fasteners from the
secondary boom lift cylinder rod-end pivot pin
and barrel-end pivot pin. Do not remove the
pins.
5
Attach a strap from an overhead crane to the
lug on the rod end of the secondary boom lift
cylinder for support. Do not apply any lifting
pressure.
6
Use a soft metal drift to drive the barrel-end
pivot pin half way out. Lower the barrel end of
the secondary boom lift cylinder and let it
hang down.
7
Use a soft metal drift to drive the rod-end
pivot pin half way out.
8
Remove the secondary boom lift cylinder from
the machine.
Crushing hazard. The secondary
boom lift cylinder could become
unbalanced and fall when
removed from the machine if not
properly attached to the
overhead crane.
Component damage hazard.
When removing a secondary
boom lift cylinder from the
machine, be careful not to
damage the counterbalance
valve at the barrel end of the
cylinder.
Summary of Contents for Genie Z-45 XC
Page 69: ...November 2020 Service and Repair Manual Manifolds Part No 1268197GT Z 45 XC Z 45 HF 57 ...
Page 71: ...November 2020 Service and Repair Manual Manifolds Part No 1268197GT Z 45 XC Z 45 HF 59 ...
Page 73: ...November 2020 Service and Repair Manual Manifolds Part No 1268197GT Z 45 XC Z 45 HF 61 ...
Page 75: ...November 2020 Service and Repair Manual Manifolds Part No 1268197GT Z 45 XC Z 45 HF 63 ...
Page 83: ...November 2020 Service and Repair Manual Manifolds Part No 1268197GT Z 45 XC Z 45 HF 71 ...
Page 143: ...November 2020 Service and Repair Manual 131 Electrical Schematic Ford MSG425 ...
Page 147: ...November 2020 Service and Repair Manual 135 Electrical Schematic Deutz D 2 9 L4 ...
Page 150: ...Service and Repair Manual November 2020 138 Engine Wire Harness Deutz D 2 9 L4 ...
Page 151: ...November 2020 Service and Repair Manual 139 Electrical Schematic Deutz TD 2 2 L3 ...
Page 154: ...Service and Repair Manual November 2020 142 Engine Wire Harness Deutz TD 2 2 L3 Page 1 ...
Page 156: ...Service and Repair Manual November 2020 144 Engine Wire Harness Deutz TD 2 2 L3 Page 2 ...
Page 157: ...November 2020 Service and Repair Manual 145 Electrical Schematic Perkins 404F E22T ...
Page 160: ...Service and Repair Manual November 2020 148 Engine Wire Harness Perkins 404F E22T ...
Page 161: ...November 2020 Service and Repair Manual 149 Electrical Schematic Function Controls ANSI CSA ...
Page 164: ...Service and Repair Manual November 2020 152 Electrical Schematic Function Controls CE ...
Page 165: ...November 2020 Service and Repair Manual 153 Electrical Schematic Platform Overload ...
Page 168: ...Service and Repair Manual November 2020 156 Electrical Schematic Options Wiring Diagram ...
Page 181: ...November 2020 Service and Repair Manual 169 Ground Control Box Switch Panel Wiring Diagram CE ...
Page 185: ...November 2020 Service and Repair Manual 173 Platform Control Box Switch Panel Wiring Diagram ...
Page 192: ...Service and Repair Manual November 2020 180 Platform Control Box Relay Wiring Diagram CE ...
Page 193: ...November 2020 Service and Repair Manual 181 Hydraulic Schematic CE to Z4525XCM 1500 ...
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