Lull 1044C-54 Series II Service Manual User Manual
Page 93
Supply, Pressure, and Return Hydraulics
31200079
5-11
Reservoir Drain and Refill
Fig. 5-7: Hydraulic Reservoir Drain and Refill
(Ref. Fig. 5-7) The following procedure describes draining and refilling the
hydraulic reservoir.
1. Lower the boom to the ground, apply the parking brake, and stop the
engine.
CAUTION: Do not place hands in hot hydraulic oil. Hot hydraulic oil can
cause severe burns and skin irritation.
2. Remove hydraulic reservoir drain plug (Item 4) and drain hydraulic oil
into an appropriate container. Dispose of drained oil properly.
3. To remove the return filter assembly (Item 2), see “Removal” on
page 5-25.
4. To remove the suction strainer (Item 3), see “Removal and Cleaning”
on page 5-20.
5. Clean inside of reservoir of rust, sludge, scale, metallic particles,
deposits, and other residue with solvent. Drain into suitable container
and wipe clean with dry, lint-free wipes. Dry with compressed air and
use a shop vacuum to remove any remaining particles.
MV0070
3
1
2
4
#
Description
1
Breather Filter
2
Return Filter Assembly
#
Description
3
Hydraulic Oil Suction Strainer
4
Drain Plug