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

Supply, Pressure, and Return Hydraulics
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
5-55
Disassembly, CRA Assembly
Fig. 5-36: CRA Assembly
K1070
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
# Description
1 Socket Head Capscrew
2 Lockwasher
3 Bearing Washer
4 Positioner Housing
5 Square Cut Seal
6 Housing
7Acorn Nut
8Jam Nut
9 Adjustable Stem
10 Adjustable Relief Cap
11 O-Ring
12 Piston
13 O-Ring
14 Spring
# Description
15 Shim
16 Relief Poppet
17 Piston Ring
18 Relief Body
19 O-Ring
20 Backup Washer
21 O-Ring
22 Anti-Cavitation Poppet
23 Anti-Cavitation Spring
24 Poppet Retainer
25 Backup Washer
26 O-Ring
27 Check Spring
28 Poppet