SkyTrak 6042 Service Manual - Manual (Page 111)

3.65 Model 6042 Legacy Origin 7/02
Boom
3.5 BOOM WEAR PADS
Flat rectangular wear pads with metal inserts are used. The
inserts are special metal hardware that will scratch the
boom if the wear pads are worn beyond usable limits.
(Refer to the appropriate Owners/Operators Manual.)
A total of 30 wear pads are installed on the outer,
intermediate and inner booms. Seven wear pads are
attached to the inner boom, 15 to the intermediate boom,
and eight to the outer boom.
At the front of the boom, shims are used to maintain a
total minimum gap of .07-.13" (1,8-3,3 mm) between the
wear pads and the booms.
Wear Pad Gaps:
FRONT, outer boom to intermediate boom, and
intermediate boom to inner boom:
TOP: ............................. .07-.13" (1,8-3,3 mm), minimum
SIDE: ............................ .07-.13" (1,8-3,3 mm), minimum
Note: Shim front, upper and side wear pads to maintain
a total minimum gap in both vertical and horizontal direc-
tions.
REAR, intermediate boom to outer boom, and inner
boom to intermediate boom:
UPPER PADS: Shim upper rear wear pads to maintain a
maximum gap of .06" (1,7 mm) at the rear edge of the upper
pads, and to maintain a total minimum gap of .07-.13"
(1,8-3,3 mm) in the vertical direction.
3.5.1 Boom Wear Pad Replacement
When installing a wear pad on one surface of a boom,
replace the wear pad on the opposite surface. Usually,
shimming will remain the same when installing new wear
pads.
When installing new wear pads, apply Loctite
®
242 (blue)
to all wear pad mounting capscrews and torque to
31 lb-ft (42 Nm).
a. Inner Boom
All inner boom pads are mounted on the rear outside of
the inner boom (Fig. 3-145, 1). The inner boom must be
removed from the vehicle in order to replace the wear
pads. Refer to Section 3.3.1, “Inner Boom Removal” for
information on removing the inner boom.
Figure 3-145 Inner Boom Wear Pad Locations
Use shims (Fig. 3-146, 1) under the upper rear wear pads
as required to maintain a maximum gap of .06" (1,7 mm)
(2) at the rear edge of the pads and maintain a total
minimum gap of .07-.13" (1,8-3,3 mm) in the vertical
direction.
Use shims as required to maintain a total minimum gap of
.07-.13" (1,8-3,3 mm) between the side wear pads and
boom surfaces.
Figure 3-146 Inner Boom (3) and Intermediate Boom (4),
Upper Rear Wear Pad Gap Dimensions
MA10,0190
1
1
1 1
MS06302
2
1
3 4