
Section 4 • Repair Procedures
4 - 32
S-80 • S-85 • S-80X
Part No. 122985
February 2012
BOOM COMPONENTS
4-6
Platform Leveling
Master Cylinder
The master cylinder acts as a pump for the slave
cylinder. It is part of the closed loop hydraulic
circuit that keeps the platform level through the
entire range of boom motion. The master cylinder
is located inside the pivot end of the boom.
How to Remove the Platform
Leveling Master Cylinder
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or the
hose end must be replaced. All connections must
be torqued to specification during installation.
Refer to Section 2,
Hydraulic Hose and Fitting
Torque Specifications.
1 Raise the boom until the master cylinder
rod-end pivot pin is accessible.
2 Remove the turntable end cover to access the
master cylinder.
3 Tag, disconnect and plug the master cylinder
hydraulic hoses. 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.
4 Remove the pin retaining fastener from the
master cylinder barrel-end pivot pin.
5 Place a rod through the barel-end pivot pin and
twist to remove the pin.
6 Attach a lifting strap from an overhead crane to
the lug on the rod end of the master cylinder.
7 Remove the pin retaining fastener from the
rod-end pivot pin.
8 Place a rod through the rod-end pivot pin and
twist to remove the pin.
9 Remove the master cylinder from the machine.
Crushing hazard. The master
cylinder could become unbalanced
and fall if it is not properly
supported by the lifting device
when removed from the machine.
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REV B
Summary of Contents for S-80
Page 1: ......
Page 6: ...February2012 S 80 S 85 S 80X PartNo 122985 This page intentionally left blank iv ...
Page 183: ...Section 6 Schematics February2012 6 5 6 6 Connector Pin Legend View 1 ...
Page 186: ...February2012 Section 6 Schematics 6 8 Connector Pin Legend View 2 6 7 ...
Page 223: ...Section 6 Schematics February2012 6 45 Electrical Schematic S 80X DeutzTD2011L04IModels 6 46 ...
Page 226: ...February2012 Section 6 Schematics 6 48 Electrical Schematic S 80X DeutzTD2011L04IModels 6 47 ...
Page 271: ...Section 6 Schematics February2012 6 93 Electrical Schematic S 80X Perkins804D 33Models 6 94 ...
Page 274: ...February2012 Section 6 Schematics 6 96 Electrical Schematic S 80X Perkins804D 33Models 6 95 ...
Page 331: ...Section 6 Schematics February2012 6 153 6 154 Continental TME27 Engine Harness ...
Page 334: ...February2012 Section 6 Schematics 6 156 Platform Level Cutout CTE Option 6 155 ...
Page 335: ...Section 6 Schematics February2012 6 157 Continental Options Schematic 6 158 ...
Page 338: ...February2012 Section 6 Schematics 6 160 Deutz and Perkins Options Schematic 6 159 ...
Page 339: ...Section 6 Schematics February2012 6 161 6 162 12 kW Hydraulic Generator Wiring Diagram ...
Page 342: ...February2012 Section 6 Schematics 6 164 6 163 12 kW Hydraulic Generator Electrical Schematic ...
Page 343: ...Section 6 Schematics February2012 6 165 Belt Driven Generator Option 6 166 ...
Page 346: ...February2012 Section 6 Schematics 6 168 Relay and Fuse Panel Legend 6 167 ...
Page 347: ...Section 6 Schematics February2012 6 169 6 170 Hydraulic Schematic 2WD Models ...
Page 350: ...February2012 Section 6 Schematics 6 172 Hydraulic Schematic 4WD Models 6 171 ...
Page 352: ...February2012 Section 6 Schematics 6 174 12 kW Hydraulic Generator Hydraulic Schematic 6 173 ...