DIFFERENTIAL PRESSURE GAGE (R. O. VESSELS) 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 10-4610-240-10).
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 (1), adapter (2), elbow (3) from differential gage (5).
Remove tubing (7) and adapter (8) from differential gage (5).
Remove three nuts (9), lockwashers (10), and screws (4).
Remove differential gage (5) from control panel (6).
Position differential gage (5) in control panel (6).
Install three screws (4), lockwashers (10) and nuts (9).
Apply anti-seize tape to male fittings Be sure to wrap tape in same direction as pipe thread.
Install adapter (8) and tubing (7) on differential gage (5).
Install elbow (3), adapter (2), and tubing (1) on differential gage (5).
Operate ROWPU (TM 1-4610-240-10). Check for leaks and proper operation.