Section 4 • Repair Procedures
REV A
September 2016
4 - 32 GRC Part No. 227123
How to Disassemble the Mast
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.
1 Remove the mast. See 9-1,
How to Remove the
Platform.
2 Remove the mast. See 10-1,
How to Remove
the Mast Assembly.
3 Remove the lift cylinder. See 10-3,
How to
Remove the Lift Cylinder.
4 Remove the mast coil cord. See 10-5,
How to
Remove the Mast Coil Cord.
5 Remove the fasteners securing the AC outlet
junction box to the upper half of the mast and
remove the junction box. Set the junction box
and the fasteners to the side.
6 Remove the fasteners securing the work trays
to the upper half of the mast and remove the
work trays. Set the trays and the fasteners to
the side.
7 Remove the fasteners securing the down limit
switch assembly to the limit switch bracket and
remove the limit switch assembly. Set the limit
switch assembly and the fasteners to the side.
8 With the chassis mount side up, stagger the
mast assembly to gain access to the rivets
securing the inner wear pads, to the bottom half
of the number 2, number 3 and number 4 mast
sections.
9 Using a drill, carefully drill out the rivets
securing the number 2 inner wear pads to the
bottom half of the number 2 mast section, the
number 3 inner wear pads to the bottom half of
the number 3 mast section and the number 4
inner wear pads to the bottom half of the
number 4 mast section. Refer to Illustration 1.
Note: While drilling the rivets out, be careful not
drill into the opposing mast section.
Note: While drilling the rivets out, be careful not
enlarge the wear pad mounting holes.
MAST COMPONENTS
Illustration 1
a rivet
b wear pads
c number 1 mast
d number 2 mast
e number 3 mast
f number 4 mast
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