Section 4 • Repair Procedures
REV A
September 2016
4 - 36 GRC Part No. 227123
MAST COMPONENTS
How to Assemble 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 Thoroughly clean all mast sections.
2 Attach a lifting strap from an overhead crane to
the number 1 mast, and place the number 1
mast onto a work table capable of supporting a
complete mast assembly.
Crushing hazard. The number 1
mast could become unbalanced
and fall if not properly supported.
Note: During installation, the overhead crane strap
will need to be carefully adjusted for proper
balancing.
3 Secure the number 1 mast to the work table.
4 Using the appropriate rivets, securely install the
upper corner wear pads, to the upper half of the
number 1 mast. Refer to Illustration 1.
Illustration 1
a wear pad
b rivet
c number 1 mast
5 Attach a lifting strap from an overhead crane
to the number 2 mast and carefully slide the
number 2 mast onto the number 1 mast, with
the cylinder mount brackets facing the work
table.
Crushing hazard. The number 2
mast could become unbalanced
and fall if not properly supported.
Note: During installation, the overhead crane strap
will need to be carefully adjusted for proper
balancing.
6 Slide the lower, inner corner wear pads
between the number 2 mast and the number 1
mast. Align the holes on the wear pads to the
rivet holes on the lower half of the number 2
mast and secure into place using the
appropriate rivets. Refer to Illustration 2.
Illustration 2
a number 2 mast
b rivet
c wear pads
d number 1 mast
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