SkyTrak 8042 Service Manual - Manual (Page 161)

Boom
3.100 Model 8042, 10042, 10054 Legacy Rev. 03/04
Note: Shim ALL upper rear wear pads as needed to
maintain a total maximum gap of .06" (1,5 mm) at the
rear of the pads and maintain a total minimum gap of .07
to .13" (1,8 to 3,3 mm) in the vertical direction.
10. Assemble the top wear pads to the top of the
intermediate boom. Position the wear pads so the
outside pads are offset to the outside and the center
pad is offset to the right as seen in the following
illustration.
a. Apply Loctite
®
242 threadlocker to the threads of
the capscrews (1), saved.
b. Place the wear pad shims (2), saved, onto the
top of the boom. Line up the holes in the shims
with the holes in the boom. Place the wear pad
inserts (3), saved, into the cavities in the wear
pad (4). Be sure the inserts are seated
completely in the cavities.
c. Insert a capscrew with a lockwasher (5), saved,
and a flat washer (6), saved, through each of the
mounting holes in the top of the intermediate
boom. 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.
11. On the inside of the outer boom and the inside of the
primary intermediate boom, spray the wear pad
pathways with LPS3 or equivalent. Spray the wear
pad pathways on the underside of the primary
intermediate boom with LPS3 or equivalent.
12. Before installing the primary intermediate boom into
the outer boom, place a string (heavy enough to pull
the Attachment Tilt and auxiliary hydraulic hoses)
down the inside of the outer boom. Let the string
hang out the rear of the boom. Pull the other end out
the opening on the left side of the boom where the
hoses will exit the boom. Place a string for each
hose in the boom. Position the strings all the way to
the left side of the outer boom.
13. Lift the primary intermediate boom. Carefully slide
the primary intermediate boom into the front of the
outer boom. Push the boom in until the rod end of
the Extend/Retract cylinder aligns with the mounts
on the primary intermediate boom.
14. Use the hoist and slings to slightly lift the front of the
primary intermediate boom to allow installation of
the center wear pad:
a. Fill the cavities of the wear pad with a good
grade of lithium-based EP grease.
b. Slide the center wear pad mount (7) into the
outer boom with the wear pad offset toward the
right side. Line up the threaded holes in the wear
pad mount with the holes in the bottom of the
outer boom.
c. Apply Loctite
®
242 threadlocker to the threads of
the capscrews (8), saved. Secure the wear pad
mount to the outer boom with the capscrews (8)
and lockwashers (9), saved. Torque the capscrews
to 31 ±3 lb-ft (42 ±4 Nm).
15. Remove the slings and the hoist from the primary
intermediate boom.
MH1520
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MH2210
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