Lull 1044C-54 Series II Service Manual User Manual

Page 96

Advertising
background image

Supply, Pressure, and Return Hydraulics

5-14

31200079

(Ref. Fig. 5-8) The following procedure describes removal of the hydraulic
reservoir/fuel tank.

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 19) and drain hydraulic

fluid into a suitable container. Dispose of drained fluid properly.
Temporarily reinstall drain plug.

3. Remove fuel tank drain plug (Item 18) and drain the fuel into an

suitable container. Dispose of drained fuel properly. Temporarily
reinstall drain plug.

WARNING: Fuel is highly combustible. Avoid all possibilities of sparks that

could ignite the fuel. Drain the fuel tank in a well ventilated
area, away from smoking materials, open flames, or exposed
heater parts.

4. Remove two (2) nuts (Item 7) and flatwashers (Item 6) securing wiring

harness (Item 8) to fuel sender.

5. Loosen and disconnect swivel nut of swivel branch tee (Item 13) from

check valve (Item 14).

6. Tag fuel lines (Items 17 and 5). Remove hose clamps (Items 4 and 16)

on fuel lines. Cap elbow (Item 15) and pipe adapter (Item 3).

7. Remove the four (4) capscrews (Item 26) and lockwashers (Item 27)

securing the two (2) flange halves (Item 20) and the hydraulic suction
hose (Item 21) to the hydraulic strainer (Item 28). Remove the flange
halves.

8. Loosen and remove the return manifold tube (Item 10) connected to

the JIC pipe connector (Item 9) on the hydraulic oil return filter
(Item 11).

CAUTION: To avoid personal injury and/or damage to the equipment,

support the hydraulic tank to ensure that it does not twist or
fall when removing or installing it.

9. After ensuring that the tank is properly supported, remove the four (4)

each nuts (Item 24) and lockwashers (Item 23) that secure the two (2)
tank hold-down straps (Item 1) to the tank support mount (Item 22).

10. Remove the hydraulic reservoir/fuel tank (Item 12) to an appropriate

area for cleaning/inspection.

11. Inspect reservoir/fuel tank for damage and replace if necessary.

12. Remove hydraulic reservoir drain plug and perform steps 3 thru 5

under “Reservoir Drain and Refill” on page 5-11.

13. Remove the fuel tank drain plug. Clean the inside of the fuel tank with

high-pressure jet spray of diesel fuel to ensure it is free of rust, sludge,
scale, metallic particles, deposits, and other residue. Drain into suitable
container and hand wipe clean with dry rags.

Advertising