Service Manual User guide
Table Of Contents
- 10709790_B_644B,6K,844C,8K,1044C,10K_Lull_Service_Mnl
- Quick Reference
- Revision Record
- Table Of Contents
- List Of Figures
- List Of Tables
- Section 1 Safety
- Section 2 Identification & Specifications
- Section 3 General Maintenance
- Section 4 Reference Diagrams
- Section 5 Supply, Pressure & Return Hydraulics
- Section 6 Boom & Transfer
- Section 7 Frame Tilt & Oscillation
- Section 8 Transmission
- Section 9 Brakes
- Section 10 Outriggers

Boom and Transfer
6-130
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Fig. 6-138: Cylinder Pivot Pin Installation
29. (Ref. Fig. 6-138) Align the rod-end of a boom hoist cylinder (Item 7)
with the matching boss on the boom. Insert a pivot pin (Item 5) and
secure it with a lock pin (Item 1), lockwasher (Item 2), and a capscrew
(Item 3) that has thread locking compound applied to its threads.
Torque the capscrew to 55 ft-lbs. Repeat this procedure for the other
hoist cylinder and the rear carriage tilt cylinders (Item 6).
30. The slings/chains and the crane may be removed at this point.
J1072
3
1
2
3
4
2
1
5
6
7
8
Hook chains at
these areas
# Description
1 Lock Pin
2 Lockwasher
3 Capscrew
4 Pivot Pin, Rear Carriage Tilt Cyl.
# Description
5 Pivot Pin, Boom Hoist Cylinder
6 Rear Carriage Tilt Cylinder
7 Boom Hoist Cylinder
8 Boom