October 2020
Part No. 1268553GT
Z®-51/
31J
29
Service and Repair Manual
4-1
Cable Track
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.
How to Remove the Cable Track
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
.
Primary Boom Components
Summary of Contents for Z-51/30J
Page 62: ...52 Z 51 31J Part No 1268553GT October 2020 Service and Repair Manual Manifolds...
Page 64: ...54 Z 51 31J Part No 1268553GT October 2020 Service and Repair Manual Manifolds...
Page 71: ...October 2020 Part No 1268553GT Z 51 31J 61 Service and Repair Manual Manifolds...
Page 99: ...October 2020 Part No 1268553GT Z 51 31J 89 Service and Repair Manual Hydraulic Symbols Legends...
Page 106: ...October 2020 Service and Repair Manual 96 Platform Control Box Wiring Diagram Options...
Page 110: ...October 2020 Service and Repair Manual Electrical Schematic Options 100...
Page 111: ...October 2020 Service and Repair Manual 101 Electrical Schematic AS...
Page 112: ...102 Z 51 31J Part No 1268553GT October 2020 Service and Repair Manual Electrical Schematic AS...
Page 113: ...October 2020 Service and Repair Manual Electrical Schematic AS 103 Z 51 31J Part No 1268553GT...
Page 114: ...October 2020 Service and Repair Manual Electrical Schematic AS 104...
Page 115: ...October 2020 Service and Repair Manual Ground Control Box Terminal Strip Wiring Diagram AS 105...
Page 118: ...October 2020 Service and Repair Manual 108 Ground Control Box Switch Panel Wiring Diagram AS...
Page 119: ...October 2020 Service and Repair Manual 109 Platform Control Box Wiring Diagram AS...
Page 122: ...October 2020 Service and Repair Manual 112 Platform Control Box Switch Panel Wiring Diagram AS...
Page 123: ...October 2020 Service and Repair Manual 113 Electrical Schematic CE...
Page 124: ...October 2020 Service and Repair Manual Electrical Schematic CE 114 Z 51 31J Part No 1268553GT...
Page 125: ...October 2020 Service and Repair Manual Electrical Schematic CE 115 Z 51 31J Part No 1268553GT...
Page 126: ...October 2020 Service and Repair Manual 116 Electrical Schematic CE...
Page 127: ...October 2020 Service and Repair Manual 117 Ground Control Box Terminal Strip Wiring Diagram CE...
Page 130: ...October 2020 Service and Repair Manual 120 Ground Control Box Switch Panel Wiring Diagram CE...
Page 131: ...October 2020 Service and Repair Manual 121 Platform Control Box Wiring Diagram CE...
Page 134: ...October 2020 Service and Repair Manual 124 Platform Control Box Switch Panel Wiring Diagram CE...
Page 135: ...October 2020 Service and Repair Manual 125 Electrical Schematic Deutz TD 2 2 L3 Models CE...
Page 142: ...132 Hydraulic Schematic October 2020 Service and Repair Manual...
Page 143: ...Hydraulic Schematic October 2020 Service and Repair Manual 133 Z 51 31J Part No 1268553GT...