Lull 6K Service Manual - Manual (Page 336)

Boom and Transfer
6-86 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
11. (Ref. Fig. 6-81) Secure the extension cylinder to the mounting block
with a washer (Item 3) and extension cylinder nut (Item 1). Torque the
nut to 1640 ft-lbs. Tighten the two (2) setscrews (Item 2) in the
extension cylinder nut.
12. (Ref. Fig. 6-81) For models with a 2" diameter rod in the boom
extension cylinder (Item 6), install the cotter pin (Item 4). Models with a
2.25" diameter rod do not have a cotter pin; proceed to Step 13.
13. Install the front carriage tilt cylinder. See page 6-19.