Lull 1044C-54 Series II Service Manual - Manual (Page 102)

Supply, Pressure, and Return Hydraulics
5-20 31200079
Removal and Cleaning
Suction Strainer
(Ref. Fig. 5-11) The following procedures describes removal of the suction
strainer on models with mid-inlet hydraulics.
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 5-3.
2. Remove the hydraulic reservoir drain plug (Item 1) and drain hydraulic
fluid into a suitable container. Dispose of drained fluid properly.
3. Remove the four (4) capscrews (Item 6) and lockwashers (Item 5)
securing the two (2) flange halves (Item 4) and the hydraulic suction
hose (Item 8) to the hydraulic strainer (Item 3). Remove the flange
halves.
4. Remove and discard the O-ring (Item 7) from the hydraulic suction
hose.
5. Loosen and remove the strainer (Item 3) from the reservoir. Take the
strainer to an appropriate area for further cleaning.
6. Clean the strainer (Item 3) by back flushing with solvent. Dry the
strainer element thoroughly with compressed air.
Installation
Suction Strainer
(Ref. Fig. 5-11) The following procedures describes installation of the
suction strainer on models with mid-inlet hydraulics.
1. Insert hydraulic oil strainer (Item 3) into cavity in hydraulic reservoir
and tighten until snug.
2. Install a new O-ring (Item 7) on the hydraulic suction hose (Item 8).
3. Install the hydraulic suction hose on the hydraulic oil strainer using the
two flange halves (Item 4) and the four (4) lockwashers (Item 5) and
capscrews (Item 6). 4
4. Apply thread sealant to few threads near the head of drain plug (Item
1). Install the drain plug. Tighten 2–3 turns past finger tight.
5. Fill hydraulic reservoir according to the preferred method on page 5-8.