SkyTrak 8042 Service Manual - Manual (Page 85)

Boom
3.24 Model 8042, 10042, 10054 Legacy Rev. 03/04
14. On the end of the boom pivot pin (1), closest to the
capscrew hole, mark the capscrew mounting hole
location. Coat the entire pin with anti-seize
compound.
15. Insert the pivot pin (1) from the outside of the boom
assembly, making sure the marks for the capscrew
mounting hole stay in line with the capscrew
mounting holes in the boom mounting hub. If
necessary, use a rawhide hammer to install the pivot
pin.
16. Shim the boom as required using the shims (2),
saved, to maintain a .10" (2,5 mm) maximum gap (3)
between the boom mounting hub and the self
aligning bearing (4) in the frame. If an additional
shim is required to maintain the maximum gap, the
extra shim MUST be inserted on the right side of the
boom.
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
17. After the pivot pin and shims are in place, use a
tapered punch to align the capscrew hole in the pin
with the mounting holes in the hub. Insert the
capscrew (5), saved, through the hub and the pin.
Secure the capscrew in place with a new
elastic locknut (6). Tighten the elastic locknut
securely.
18. Align the rod end of one of the Lift/Lower
cylinders (7) with the self-aligning bearing on the
outer boom assembly.
19. Coat the entire Lift/Lower cylinder pivot pin (8) with
anti-seize compound. Insert the pin through the rod
end of the cylinder and the self-aligning bearing. If
necessary, use a rawhide hammer to install the pin.
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
20. Use a tapered punch to align the capscrew mounting
hole in the pin with the mounting tabs on the rod end
of the cylinder. Secure the pin in place with the
capscrew (9), saved, and a new elastic locknut (10).
Tighten the elastic locknut securely.
21. Repeat Steps 18 thru 20 to install the Lift/Lower
cylinder on the other side of the outer boom.
22. Use a hoist and sling to position the Slave
cylinder (11) onto the lower cylinder mount (12)
located on the frame. The cylinder should be
positioned with the extend and retract port
fittings (13) to the outside.
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
23. Coat the lower pivot pin (14) with anti-seize
compound. Insert the pin through the base end of
the Slave cylinder. Use a tapered punch to align the
capscrew hole in the pin with the mounting tabs on
the cylinder. Secure the lower pivot pin in place with
the capscrew (15), saved, and a new elastic
locknut (16). Tighten the elastic locknut securely.
24. Position the rod end of the Slave cylinder around the
self-aligning bearing on the outer boom.
MH1380
1
2
3
4
5
6
MH1230
7
8
9
10