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
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
6-169
Fig. 6-182: Upper Chain – Middle (Forward) to Middle (Rear) Boom Sections
11. (Ref. Fig. 6-182) Remove jam nut (Item 2) and lockwasher (Item 3)
securing upper chain adjustment anchor (Item 1) to middle (rear) boom
section.
12. Remove chain adjustment anchor from bracket at top of middle (rear)
boom section and lay chain over top of inner boom section.
Fig. 6-183: Upper Chain Roller Assembly – Middle (Forward) Boom Section
13. (Ref. Fig. 6-183) Remove capscrew (Item 10), lockwasher (Item 9),
and lock pin (Item 8) from chain roller pin (Item 7).
0
80
60
40
20
-20
J1223
1
2
3
4
# Description
1 Chain Adjustment Anchor
2Jam Nut
# Description
3 Lockwasher
4Nut
0
80
60
40
20
-20
J1224
1
2
3
4
1
7
8
9
10
5
6
# Description
1 Chain Guide Washer
2 Bushing
3 Chain Roller
4 Chain Roller Bushing
5 Grease Fitting Cover
# Description
6 Grease Fitting
7 Chain Roller Pin
8Lock Pin
9 Lockwasher
10 Capscrew