Hydraulic pressure filter – Lull 1044C-54 Series II Service Manual User Manual
Page 109

Supply, Pressure, and Return Hydraulics
31200079
5-27
Removal and Installation
Reservoir Breather
1. Loosen and remove breather, using tool on hex portion of breather.
2. Replace breather per the maintenance schedule found on the machine
or if damaged.
3. Install breather on tank and tighten as necessary.
CAUTION: To avoid contamination of the hydraulic system, do not use
thread sealant or Teflon tape.
CAUTION: To avoid the possibility of the hydraulic system being
contaminated, do not fill the reservoir through the breather
opening.
Hydraulic Pressure Filter
Description
Fig. 5-18: Hydraulic Pressure Filter – Control Manifold Hydraulics
The hydraulic pressure filter is located on the mounting bracket for the
pressure filter and accumulator which is attached to the valve plate. While
Fig. 5-18 illustrates the hydraulic pressure filter. The function of the
pressure filter is to remove contaminants from the oil traveling to the
joystick controls.
K
1101