Lull 6K Service Manual - Manual (Page 314)

Boom and Transfer
6-64 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Fig. 6-59: Boom Section Gaps – Rear of 2-Section Boom
6. (Ref. Fig. 6-59) Measure the gap between boom sections at both
upper pads. If the dimensions are not within the specified range,
proceed to Step 7. If the dimensions are within the specified range,
proceed to Step 8.
Fig. 6-60: Lower Shim Installation – Rear of 2-Section Boom
7. (Ref. Fig. 6-60) Install/remove shim(s) under indicated pads to obtain
clearance specified in Step 5.
J1047
0.813"–0.875"
(13/16"–7/8")
J1048
Install shim(s)
under these pads