Lull 6K Service Manual User Manual
Page 453
Boom and Transfer
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
6-203
Fig. 6-219: Upper Chains – Middle (Rear) to Outer Boom Sections
41. (Ref. Fig. 6-219) Secure upper chain to outer boom section as follows:
a. Bring upper chain lying on top of middle (front) boom section up
and around the upper chain roller assembly (Item 6) on the middle
(rear) boom section (Item 5).
b. Install jam nut (Item 2) on chain anchor (Item 1) and insert
threaded portion of chain anchor through opening in bracket at top
of outer boom section.
c. Secure chain anchor with lockwasher (Item 3) and nut (Item 4).
Torque anchor nut to 120 ft-lbs.
0
80
60
40
20
-20
J
1
225
1
3
4
5
2
6
#
Description
1
Chain Anchor
2
Jam Nut
3
Lockwasher
#
Description
4
Nut
5
Outer Boom Section
6
Upper Chain Roller Assembly
0
80
60
40
20
-20
J
1223
1
2
3
4
5
6