SECTION 2 - SERVICE PROCEDURES
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d. Attach to top of mast section-6 using two (2) 3/8 in.
x 1/2 in. long socket head-countersunk-flathead cap
screws, each side. Apply Medium Strength Thread-
locking Compound and tighten.
NOTE:
When sliding mast sections together, be careful not to
scratch or score the anodized finish in the slide pad chan-
nels.
65. Carefully slide mast section-6 back into section-5 until
ends are even. Check to make sure cable set from top of
section-4 is seating properly in cable sheave wheels
attached to top of mast section-5.
(Mast sections-3, -4 and
-5 may need to be restrained to keep their slide pads from
pushing out the bottom of mast sections-2, -3 and -4)
.
66. Insert slide pads into the top end mast rails between sec-
tion-5 and -6,
(one on each side of the mast)
, with beveled
surface facing inward towards section-6.
NOTE:
Before fastening and shimming the slide pad on the top
left side of the mast, install a sequence cable bracket
against the mast under the flatwasher.
67. Thread slide pad attaching bolts,
(two (2) 1/4
in.
x 7/8
in.
long hex head bolts, place a flat washer under head of each
bolt)
, through holes in outside rail, on top of mast sec-
tion-5 and into the slide pad inserts. Thread in enough to
hold pad in place.
68. Shim per instructions in step 7, Mast Section 2 - Assem-
bly.
69. Insert slide pads into the bottom end mast rails between
section-5 and -6,
(one on each side of the mast)
, with bev-
eled surface facing out towards section-5.
70. Thread slide pad attaching bolts, (two (2) 1/4 in. x 3/4 in.
long hex head bolts, place a flat washer under head of
each bolt), through holes on inside rail, on bottom end of
mast section-4 and into the slide pad inserts. Thread in
enough to hold pad in place.
71. Shim per instructions in step 7, Mast Section 2 - Assem-
bly.
Platform Mounting Section - Assy.
(All Masts)
NOTE:
Reference to mast sections -6/-7 made following is depen-
dent on which model machine you are servicing since the
25 ft. machines use six (6) mast sections, the 30 and 38 ft.
models use seven (7) mast sections.
72. Locate the remaining mast section -6/-7
(platform mount-
ing - mast section).
Lay mast section on flat stable surface.
73. Attach the remaining bracket. Attach through inner
(ver-
tical)
set of holes in bottom of mast section -6/-7 with
two (2) 1/4 in. x 3/4 in. long bolts, place a flatwasher
under head of each bolt.
NOTE:
The platform mounting section slide pads, are assembled
differently than the slide pads for the other mast sections.
Mast section -6/-7 slide pads may need to be assembled/
disassembled several times in order to determine the cor-
rect shim stock required for proper fit.
74. Complete the following steps to determine shim stock
thickness required for section -6/-7;
NOTE:
Always use the an even amount of shim material behind
slide pads on both sides of the mast rails. This will keep
mast sections centered in rail channels and prevent any
distortion of the section.
a. Use two shim pieces per slide pad, a thick one and a
thin one.
b. Start with a total thickness of approximately 0.035
in. and 0.075 in. thick shim stock.
c. Attach shim stock and slide pads to both sides of
mast section -6/-7 using four (4) 1/4 in. x 1-1/4 in.
long, hex head cap screws per side, with flatwasher
under each bolt head.
(Assemble shim stock and slide
pad to mast section rail with shim stock against rail
and slide pad with beveled side out)
.
d. Carefully thread the slide pad mounting bolts with
flatwashers through slide pads and shim stock into
threads in mast section -6/-7. Be certain there are no
air gaps between shims, shim and mast or shim and
slide pad when tightened.
NOTE:
Mast section -6/-7 into section -5/-6 fit should be very snug
but still be able to be pushed together by hand. If too tight,
remove section -6/-7, disassemble slide pad and reduce
thickness of shim stock.
e. Begin sliding top of mast section -6/-7 with closed
rail down engaging the slide pads into slide pad
channels at bottom of mast section -5/-6’s open rail.
Continue to push section -6/-7 into section -5/-6
until BOTTOM ends of mast sections are even.
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