Lull 6K Service Manual - Manual (Page 494)

Boom and Transfer
6-244 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Boom Cradle/Boom Pivot Bushings
(Ref. Fig. 6-254) The following steps are required to replace boom
cradle/boom pivot bushings.
1. Remove boom and shims as described in this section.
2. Remove two (2) boom pivot bushings (Item 14) using a bushing driver
and hammer. Discard bushings.
Note: It may be necessary to cut out the old bushing.
3. Install new bushings so that each is centered in boom cradle boss.
Note: It may be necessary to freeze the new bushing before installing it.
4. Reinstall boom and shims as described earlier in this section.
5. Remove two (2) grease fitting cover caps (Item 15) and lubricate
grease fittings (Item 16) with EP lithium based grease.
Transfer Cylinder
Description
Fig. 6-256: Transfer Cylinder
The transfer cylinder is located on the right rear side of the main frame and
is connected to the main frame and transfer carriage. Its function is control
forward and backward movement of the transfer carriage. It has an
operating pressure of 3000 psi and has a stroke limit of 80 inches.
(Models 644B, 844C and 104
Only)
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