TM 5-4220-227-14
6-21. Pressure Regulator.
This task covers:
Repair
INITIAL SETUP:
Tools
Materials/Parts (Cons)
General Mechanic's Tool Kit
Bands, Rubber (Item 4, Appendix E)
(NSN 5180-00-177-7033)
Bags, Plastic (Item 3, Appendix E)
Cloth, Lint Free (Item 6, Appendix E)
Materials/Parts
Distilled Water (Item 9, Appendix E)
Valve Kit, Standard
Equipment Condition
Valve Kit, Soft Goods
Pressure Regulator
Pressure regulator removed (para. 5-31).
Detergent, Nonionic (Items, Appendix E)
Repair. (figure 6-39)
WARNING
To prevent the spread of disease, serious injury and/or death, oxygen breathing systems must be
maintained hygienically clean and free from dust, dirt, and all hydrocarbon contamination. Refer to
oxygen system prework procedures para. 4-10 to avoid violating this warning.
(1)
Remove hole plug (1), retaining ring (2), and name plate (3) and remove handknob (4).
(2)
Remove screw (5), bonnet (6), three thrust washers (7).
(3)
Remove screw (8), spring (9), and rod vent valve (10) from adjusting screw (11).
(4)
Remove adjusting screw (11), spring cap assembly (12), washer (25), and load spring (13).
(5)
Remove seat retainer (14), vent valve seat (15), vent valve (16), spring (17), and nut (18).
(6)
Remove preformed packing (19), back-up sensor (20), preformed packing (21), sensor (22), preformed packing
(23), and button (24).
(7)
Remove connector (26), roll pin (27), venturi tube (28), and plate (29).
(8)
Remove orifice (30), preformed packing (31) from regulator body (32).
(9)
Remove valve cap (33), valve seat (34) from valve (35).
(10)
Remove valve (35), valve spring (36), washer (37), and ring retainer (38).
6-86
