October 2016
Service and Repair Manual
Boom Components
Part No. 1268558
ZX-135/70
71
4-7
Secondary Boom Extension
Cylinders
The secondary boom extension cylinders extend
and retract the secondary boom. The secondary
boom extension system consists of 3 hydraulic
cylinders and each are equipped with
counterbalance valves to prevent movement in the
event of a hydraulic line failure.
How to Remove the Secondary
Boom Extension Cylinders
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.
Note: Perform this procedure with the machine on a
firm, level surface and in the stowed position with
the axles extended.
1
Raise the primary boom approximately 10 feet
/ 3 m. Turn the machine off.
2
Working at the platform end of the secondary
boom, support and secure the secondary
boom end cover to a suitable lifting device.
3
Remove the cover retaining fasteners and
remove the cover from the secondary boom.
Crushing hazard. The secondary
boom end cover could become
unbalanced and fall when
removed from the secondary
boom if not properly supported
and secured to the lifting device.
4
Remove the retaining fasteners from both
secondary boom extend limit switches and
remove the limit switches. Do not disconnect
the wiring.
Note: Label the location of each limit switch as they
are not the same and their mounting locations
cannot be exchanged.
5
Tag, disconnect and plug all hydraulic hoses
for the 3 secondary boom extension cylinders.
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.
6
Remove the upper extension cylinder retainers
from the saddle blocks.
Summary of Contents for Genie Z13505-101
Page 12: ......
Page 121: ...October 2016 Service and Repair Manual Manifolds Part No 1268558 ZX 135 70 109 ...
Page 123: ...October 2016 Service and Repair Manual Manifolds Part No 1268558 ZX 135 70 111 ...
Page 129: ...October 2016 Service and Repair Manual Part No 1268558 ZX 135 70 117 ...
Page 135: ...October 2016 Service and Repair Manual Manifolds Part No 1268558 ZX 135 70 123 ...
Page 137: ...October 2016 Service and Repair Manual Manifolds Part No 1268558 ZX 135 70 125 ...
Page 141: ...October 2016 Service and Repair Manual Manifolds Part No 1268558 ZX 135 70 129 ...
Page 143: ...October 2016 Service and Repair Manual Manifolds Part No 1268558 ZX 135 70 131 ...
Page 233: ...October 2016 Service and Repair Manual 221 Perkins 1104D 44T Engine Electrical Schematic ...
Page 235: ...October 2016 Service and Repair Manual 223 Perkins 854F 34T Engine Electrical Schematic ...
Page 238: ...Service and Repair Manual October 2016 226 Perkins 854F 34T Engine Harness ...
Page 239: ...October 2016 Service and Repair Manual 227 Deutz TD2 9 Engine Electrical Schematic ...
Page 242: ...Service and Repair Manual October 2016 230 Deutz TD2 9 Engine Harness ...
Page 243: ...October 2016 Service and Repair Manual 231 Hydraulic Generator Welder Option ...
Page 246: ...Service and Repair Manual October 2016 234 Generator Wiring Schematic ...
Page 247: ...October 2016 Service and Repair Manual 235 Hydraulic Schematic to SN ZX13516H 2804 ...
Page 250: ...Service and Repair Manual October 2016 238 Hydraulic Schematic from SN ZX13516H 2805 ...
Page 253: ......