SkyTrak 8042 Service Manual - Manual (Page 99)

Boom
3.38 Model 8042, 10042, 10054 Legacy Rev. 03/04
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
18. Lay the two extend chains (1) on the top of the inner
boom with the threaded clevis ends (2) toward the
rear of the boom. Coat the threads on each clevis
with multi-purpose grease, and insert the clevis’
through the holes in the anchor plate. Install a flat
washer (3), saved, onto each clevis. Install a new
elastic locknut (4) onto each clevis. Tighten the
elastic locknut far enough so the threads are even
with the top of the locknut.
19. At the rear of the inner boom, place the male ends of
the hoses (Attachment Tilt and optional auxiliary
hydraulics) inside the inner boom. Be sure the hoses
are coiled up and inside the boom completely.
20. Spray the wear pad pathways on the underside of
the inner boom with LPS3 or equivalent.
21. Assemble the side wear pads to the intermediate boom:
Note: Shim ALL side wear pads as needed to maintain
a total minimum gap of .07 to .13" (1,8 to 3,3 mm) in the
horizontal direction.
a. Slide the inner boom over to one side as far as it
will go, to allow wear pad installation.
b. Place the wear pad inserts (5), saved, into the
cavities of the side wear pads (6), saved. Place
the shims (7), saved, onto the wear pad and align
the holes.
c. Apply Loctite
®
242 threadlocker to the threads of
the capscrews (8), saved. Slide the wear pad with
shims between the inner boom and the
intermediate boom with the offset of each wear
pad away from the center. Align the holes and
secure in place with the capscrews (8),
lockwashers (9), saved, and flat washers (10),
saved. Be careful not to push the wear pad inserts
out of the wear pads.
d. Torque all wear pad mounting capscrews to
31 ±3 lb-ft (42 ±4 Nm).
e. Fill all wear pad cavities with a good grade of
lithium-based EP grease.
f. Repeat Steps a thru e to install the side wear
pads on the other side of the intermediate boom. MH1650
2
1
2
3
4
MH1660
5
6
7 8
9
10