September 2015
Service and Repair Manual
Platform Components
Part No. 1268515
Z-34/22 Bi-Energy
17
Platform Components
2-1 Platform Leveling Slave Cyli nder
2-1
Platform Leveling Slave Cylinder
The slave cylinder and the rotator pivot are the two
primary supports for the platform. The slave
cylinder keeps the platform level through the entire
range of boom motion. It operates in a
closed-circuit hydraulic loop with the master
cylinder. The slave cylinder is equipped with
counterbalance valves to prevent movement in the
event of a hydraulic line failure.
How to R emove the Pl atform Leveling Slave Cyli nder
How to Remove the Platform
Leveling Slave Cylinder
Note: Before cylinder removal is considered, bleed
the slave cylinder to be sure there is no air in the
closed loop.
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 Extend the boom until the slave cylinder
barrel-end pivot pin is accessible.
2 Raise the boom slightly and place blocks
under the platform for support. Lower the
boom until the platform is resting on the
blocks.
3 Remove the pin retainer fastener from the
rod-end pivot pin.
4 Remove the external snap ring from the
barrel-end pivot pin.
5 Use a soft metal drift to remove the rod-end
pivot pin.
6 Use a soft metal drift to remove the barrel-end
pivot pin.
7 Carefully pull the cylinder out of the boom.
8 Tag and disconnect the hydraulic hoses from
the slave cylinder and connect them
togetherwith a connector. 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.
How to Bleed the Leveling Slave Cyli nder
How to Bleed the Slave Cylinder
1 Raise the jib boom to a horizontal position.
2 Move the platform level toggle switch up and
down through two platform leveling cycles to
remove any air that might be in the system.
Summary of Contents for Z-22 Bi-Energy
Page 63: ...September 2015 Service and Repair Manual Manifolds Part No 1268515 Z 34 22 Bi Energy 51...
Page 99: ...September 2015 Service and Repair Manual 87 Electrical Schematic from serial number 5427 CE...
Page 102: ...Service and Repair Manual September 2015 90 Electrical Schematic from serial number 5427 CE...
Page 103: ...September 2015 Service and Repair Manual 91 Ground Control Box Switch Panel Wiring Diagram...
Page 106: ...Service and Repair Manual September 2015 94 Ground Control Box Terminal Strip Wiring Diagram...
Page 107: ...September 2015 Service and Repair Manual 95 Platform Control Box Wiring Diagram...
Page 110: ...Service and Repair Manual September 2015 98 Power Cable Wiring Diagram...
Page 111: ...September 2015 Service and Repair Manual 99 Drive Contactor Panel Wiring Diagram...
Page 114: ...Service and Repair Manual September 2015 102 Manifold and Limit Switch Wiring Diagram...
Page 119: ...September 2015 Service and Repair Manual 107 Engine Wiring Diagram...
Page 123: ......