Section 4 • Repair Procedures
4 - 16
GR-20J • GR-26J
Part No. 227656
September 2016
8 Slide the number 2 mast and the number 3
mast towards the top of the number 1 mast to
gain the access to the stops at the bottom of
the number 1 mast.
9 Remove the fasteners securing stops to the
inside of the number 1 mast. Remove the
stops. Set the fasteners and stops to the side.
10 Push the number 3 mast fully into the number 2
mast. Working from the bottom of the number 1
mast, pull the number 2 mast and the number 3
mast half way out.
11 Attach a lifting strap from an overhead crane to
the number 2 mast section. Remove both the
number 2 mast and the number 3 mast while
carefully pulling the assembly out from the
bottom of the number 1 mast. With the 'P' mark
facing upwards, place the number 2 mast and
the number 3 mast assembly on a level
workbench capable of supporting it.
Crushing hazard. The mast
sections could become
unbalanced and fall if not properly
supported when removed from the
mast assembly.
Note: During removal, the overhead crane strap
will need to be carefully adjusted for proper
balancing.
12 Slide the number 3 mast towards the top of the
number 2 mast to gain the access to the stops
at the bottom of the number 2 mast.
13 Remove the fasteners securing stops to the
inside of the number 2 mast. Remove the
stops. Set the fasteners and stops to the side.
14 Working from the bottom of the number 2 mast,
pull the number 3 mast half way out.
15 Attach a lifting strap from an overhead crane to
the number 3 mast section. Remove the
number 3 mast while carefully pulling the it out
from the bottom of the number 2 mast. With the
'P' mark facing upwards, place the number 3
mast on a level workbench capable of
supporting it.
Crushing hazard. The mast
section could become unbalanced
and fall if not properly supported
when removed from the mast
assembly.
Note: During removal, the overhead crane strap
will need to be carefully adjusted for proper
balancing.
16 Using Illustration 1 as a guide, tag and remove
the outer wear pads and shims from the bottom
of the number 4 mast section. Set the shims to
the side. Discard the wear pads.
Note: For ease of mast reassembly, make careful
note of the location, order and orientation of the
shims.
Note: Use a hammer and chisel if necessary to
gently loosen the wear pads from the mast.
17 Using Illustration 1 as a guide, carefully tag and
remove the outer wear pads and shims from
the bottom of the number 3 mast section. Set
the shims to the side. Discard the wear pads.
Note: For ease of reassembly of the mast, make
careful note of the location, order and orientation of
the shims.
Note: Use a hammer and chisel if necessary to
gently loosen the wear pads from the mast.
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