SkyTrak 8042 Service Manual - Manual (Page 149)

Boom
3.88 Model 8042, 10042, 10054 Legacy Rev. 03/04
25. Remove the capscrew (1) and elastic locknut (2)
holding the upper Lift/Lower cylinder pivot pin (3) to
the outer boom. Securely block the Lift/Lower
cylinder in position. Remove the pivot pin from the
pin mount by pulling the pin out. It may be necessary
to use an appropriate puller threaded into the pivot
pin to remove the pin. Discard the elastic locknut and
retain the capscrew. Repeat for the other Lift/Lower
cylinder.
26. Inspect the pivot pins (3) for nicks or damage. If the
pins are damaged, they must be replaced.
27. Remove the capscrews (4) and elastic locknuts (5)
holding the boom pivot pins (6) to the frame. Use a
brass punch and a rawhide hammer to remove the
pivot pins from the frame. While removing the pins,
note the location and quantity of shims (7) between
the outer boom and the frame.
28. Use the hoist to remove the outer boom from the
frame. Position the outer boom on a flat, hard
surface. Block up the boom as required to allow
removal of the Extend/Retract cylinder from the
underside of the boom.
29. Carefully lower the outer boom onto suitable
supports or to the ground.
30. Inspect the boom and welds. Consult the local Sky
Trak distributor or the JLG Service Department at
1-877-554-5438 or 1-717-485-6657, if structural
damage is detected.
31. Inspect hoses, hardware, wear pads, mounting
points, chains and other components visible with the
outer boom removed. Replace if damaged.
32. Inspect all wear pads for wear. (Refer to Section
3.9.1, “Wear Pad Inspection.”)
MH1230
1
2
3
MH1240
4
5
6
7
WARNING:
NEVER weld or drill the
boom. The structural integrity of the boom will
be impaired if subjected to any repair involving
welding or drilling. Failure to comply can result
in death or serious personal injury.