Lull 6K Service Manual - Manual (Page 493)

Boom and Transfer
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K 6-243
7. Remove capscrew (Item 7), flatwasher (Item 8), spacer block (Item 6),
sleeve (Item 3), and shims (Items 4 and 5) from each side of the boom
cradle.
8. Clean parts with solvent and dry with compressed air. Replace any
damaged parts.
Fig. 6-255: Boom Cradle – Rear Shims
9. (Ref. Fig. 6-255) Check to see if the number of shims to be installed
with the spacer block is correct.
a. Place spacer block and 10 gauge shim between the boom cradle
and frame.
b. Add as many 16 gauge shims as necessary to fill the remaining
gap. Try to make sure that an equal number of 16 gauge shims will
be added to each side of the boom cradle.
10. Install spacer block, 10 gauge shim, and 16 gauge shim(s) on each
side of the boom cradle with a flatwasher, capscrew, and nut.
11. Raise the boom cradle up until the spacer block is against the bottom
edge of the rail (see Fig. 6-255). Torque the spindle nuts to 3466 ft-lbs.
12. Secure each spindle nut by tightening the two setscrews.
13. Check to see if the number of shims to be installed with the rear
support block is correct (see Fig. 6-255).
a. Place the rear support block on the rail beneath the boom cradle
mount.
b. Add as many spacers and 22 gauge shims as necessary to fill the
remaining gap. Make sure that the same quantity of spacers and
shims are added to each side of the boom cradle.
14. Install rear support blocks, spacers, and shims to boom cradle with two
(2) each lockwashers and capscrews. Torque capscrews to 55 ft-lbs.
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4
Spacer Block
Boom Cradle
Spacer(s) (1/4")
Shim (10 Gauge)
Shim(s) (16 Gauge)
Lockwasher
Capscrew
Rear Support Block
Shim(s) (22 Gauge)
Frame