Lull 6K Service Manual - Manual (Page 170)

Supply, Pressure, and Return Hydraulics
5-26 Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K
Removal
Return Filter Assembly
Fig. 5-17: Return Filter Assembly
(Ref. Fig. 5-17) The following procedure describes disassembly of the
return filter assembly.
1. Follow preparation procedures as outlined in Section 3 of this manual.
Be sure to follow the guidelines in this section detailed under “General
Hydraulic Maintenance Practices” on page 5-4.
2. Clean the area around the return filter housing (Item 6).
3. Loosen and remove the return manifold tube (Item 4) connected to the
connector (Item 5) on the hydraulic oil return filter assembly (Item 6).
4. Loosen and remove four (4) capscrews (Item 3) and lockwashers
(Item 2) that secure the hydraulic oil return filter assembly (Item 6) to
the hydraulic oil reservoir (Item 1). Remove the hydraulic oil return filter
assembly. To avoid contamination, place all parts on a clean surface.
5. Remove the rubber gasket (Item 8) and clean it with an appropriate
solvent. Inspect condition of the gasket and replace it if necessary.
K
1097
# Description
1 Hydraulic Oil Reservoir
2 Lockwasher
3 Capscrew
4 Return Manifold Tube
# Description
5 Connector
6 Return Hydraulic Oil Filter
7 Diffuser
8 Rubber Gasket
1
2
3
6
5
4
8
7