TM 1-4920-446-13 & P
3-74. Filter assemblies - Replace (Contd)
Remove "T" fittings and reducers from input and output sides of defective filter.
Discard defective filter.
Antiseize tape shall be applied to male threads prior to installation of fittings. Ensure
tape does not cover the first thread. All connections should be tightened as necessary to
preclude leakage of hydraulic fluid.
Use antiseize tape, MIL-T-27730, on all hydraulic connections.
Install reducers and "T" fittings into input and output sides of filter.
Position filter and install on mounting bracket using two screws. Make sure that flow direction (arrow) is correct.
Install hydraulic lines on either side of "T" joints.
Position differential pressure switch and connect two hydraulic connections.
Pressurize system and check for leaks.
LOW PRESSURE FILTER
Disconnect all hydraulic tubing/lines from the filter. Retain three large and one small "T" fitting with filter.
Remove four bolts holding filter to chassis.
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