Section 4 • Repair Procedures
REV A
September 2016
4 - 30 GRC Part No. 227123
10-1
Mast
How to
Remove the Mast Assembly
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 on the fitting and/or hose end must be
replaced and then torqued to specification during
installation. Refer to Section 2,
Hydraulic Hose and
Fitting Torque Specifications.
Note: Perform this procedure on a firm, level
surface.
Note: Perform this procedure with the mast in the
stowed position.
1 Remove the Platform. See 9-1,
How to Remove
the Platform
.
2 Tag and disconnect the power to platform wire
harness at the quick disconnect near the
Electronic Control Module (ECM).
3 Tag and disconnect the up limit switch cable
near the Electronic Control Module (ECM).
Mast Components
4 Tag, disconnect and plug the lift cylinder hose
at the function manifold. Cap the fitting.
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.
a AC outlet box junction box
b mast retaining fasteners
c lift cylinder coil
d lift cylinder solenoid valve
e mast
f mast cover
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