Lull 6K Service Manual - Manual (Page 385)

Boom and Transfer
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K 6-135
644B-42 (S/N 101–141)
844C-42 (S/N 101–433)
1044C-42 (S/N 101–110)
6K-42 (S/N 101–113)
8K-42 (S/N 101–192)
Fig. 6-144: Upper Chains - First Type
First Type (Ref. Fig. 6-144)
a. Install the two (2) chain adjustment anchors (Item 6) on the upper
chains (Item 1) with a chain anchor rod (Item 4) and two (2)
locknuts (Items 2 and 5). Make sure a flatwasher (Item 3) is
installed between the two upper chains. Torque the locknuts to 156
in-lbs.
b. Install the two chain adjustment anchors in the upper boom
section.
c. Install a flatwasher (Item 7), nut (Item 8), lockwasher (Item 9), and
jam nut (Item 10) on each chain adjustment anchor. Torque the nut
(Item 8) until just before the chains become taunt. Torque the jam
nut (Item 10) to 200 ft-lbs.
J 1279
# Description
1 Upper Chain
2 Locknut
3 Flatwasher
4 Chain Anchor Rod
5 Locknut
# Description
6 Chain Adjustment Anchor
7 Flatwasher
8 Nut
9 Lockwasher
10 Jam Nut
7
8
9
10
6
2
3
4
5
1