SkyTrak 8042 Service Manual - Manual (Page 153)

Boom
3.92 Model 8042, 10042, 10054 Legacy Rev. 03/04
9. Slings and a hoist are required for this step. Position
the Extend/Retract cylinder (1) with the extend and
retract port elbows facing down. Place the rod end of
the Extend/Retract cylinder (2) through the Extend/
Retract cylinder retainer at the front of the outer
boom.
10. At the rear of the Extend/Retract cylinder, align the
hole in the base end of the cylinder with the holes in
the mounting ears (3) under the outer boom.
11. Coat the base end cylinder pin with anti-seize
compound. Insert the base end cylinder pin (4)
through both mounting ears and the base end of the
Extend/Retract cylinder. Secure the pin in place with
a retaining ring (5) on each side of the pin. Be sure
the retaining rings are securely seated in the
grooves on each side of the pin.
12. Lift the rod end of the Extend/Retract cylinder up far
enough to insert the threaded stud on the rubber
bumper (6) into the hole in the Extend/Retract
cylinder retainer.
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
13. Secure the rubber bumper (6) in place with a new
elastic locknut (7). Tighten securely. Lower the rod
end of the Extend/Retract cylinder, and allow it to
rest on the rubber bumper.
14. Lift the outer boom assembly and position the boom
on the frame. Align the mounting plates (8) on the
frame between the mounting hubs (9) on each side
of the boom assembly. Lower the boom assembly
until the holes in the boom assembly and the
mounting plates align.
MH1350
5
1
2
3
4
5
MH1360
6
7
MH1370
8
9
8
9