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
5-31
2. Clean hydraulic pressure filter assembly to avoid contamination of
system while removing hydraulic pressure filter assembly.
3. Unscrew and remove filter element bowl (Item 4) from filter head
(Item 1).
4. Remove filter element (Item 3) and discard it.
5. Remove bowl O-ring (Item 2), clean with an solvent, and dry with
compressed air. Replace it if damaged.
6. Clean filter element bowl and filter head with solvent and dry with
compressed air.
7. Insert a new filter element into bowl. Lubricate bowl O-ring with
hydraulic oil and install it on bowl.
8. Screw bowl into filter head and tighten until snug.
Removal
Pressure Filter Assembly
Fig. 5-22: Hydraulic Pressure Filter Assembly
(Ref. Fig. 5-22) The following procedure describes removal of the hydraulic
pressure filter assembly.
# Description
1 Filter Mounting Bracket
2 Capscrew
3 Lockwasher
# Description
4 90° O-Ring Hose Elbow
5 Pressure Filter Assembly
6 90° O-Ring Hose Elbow
K11 04
2
1
3
4
5
6