SkyTrak 8042 Service Manual - Manual (Page 150)

3.89 Model 8042, 10042, 10054 Legacy Rev. 03/04
Boom
33. Use a hoist and slings to support the Extend/Retract
cylinder. At the base end of the Extend/Retract
cylinder, remove a retaining ring (8) from one side of
the Extend/Retract cylinder base end pin (9). Use a
brass punch and a rawhide hammer to remove the
base end pin from the mounting ears (10) on the
outer boom.
34. Lower the base end (11) of the Extend/Retract
cylinder and remove the rod end of the cylinder from
the retainer at the front of the boom. Place the
Extend/Retract cylinder on a clean, flat surface.
35. Inspect the pin (9) for damage. If the pin is damaged,
it should be replaced. Retain the retaining rings for
reassembly.
36. At the front of the outer boom, remove the elastic
locknut (12) holding the rubber bumper (13) to the
Extend/Retract cylinder retainer (14). Discard the
elastic locknut.
37. Inspect the rubber bumper (13). If it is in good
condition, the rubber bumper can be reused. If the
rubber bumper is showing signs of cracking or
deterioration, it should be replaced.
38. Remove the grease fittings (15) from the Lift/Lower
cylinder mounts (16) and the Slave cylinder
mounts (17) on the outer boom. Save the grease
fittings for reassembly.
39. Remove the self-aligning bearings (18) from the Lift/
Lower cylinder mounts (16) and the Slave cylinder
mounts (17).
40. Inspect the bearings (18). If the bearing rotates
freely inside the outer race, the bearing can be
reused.
MH1260
8
9
10 11
MH2160
12
13
14
MH1290
18
15
15
16
17
18