DIFFERENTIAL PRESSURE GAGE (CARTRIDGE FILTER) MAINTENANCE.
This task consists of:
General Mechanics Tool Kit (Appendix B, Section III, Item 4)
Tape, Anti-seize (Appendix C, Section II, Item 30)
Lockwasher (3) - MS35338-137
ROWPU shutdown (TM 10-4610-24010).
Power shutdown (power source manual)
ROWPU piping drained (TM 10-4610-240-10).
General Safety Instructions
ROWPU piping and equipment can contain extremely high pressure during and after operation. If this
pressure is not relieved before performing maintenance, serious injury or death may result Be sure to open
all drains and vents before performing maintenance.
Remove tubing (11) adapter (10), and elbow (9) from differential gage (7).
Remove tubing (1) and adapter (2) from tee (3).
Remove tubing (5) and adapter (4) from tee (3).
Remove tee (3) nipple (14) from differential gage (7).
Remove three nuts (12), lockwashers (13) and screws (6).
Remove differential gage (7) from control panel (8).
Position differential gage (7) in control panel (8).
Install three screws (6), lockwashers (13) and nuts (12).
Apply anti-seize tape to male fittings. Be sure to wrap tape in same direction as pipe thread.
Install nipple (14) and tee (3) on differential gage (7).
Install adapter (4) and tubing (5) on tee (3).