4-16. REGULATORS REPLACEMENT.
This task covers: a Removal b. Installation
General Safety Instructions
General Mechanics Tool Kit, Appendix B, Section III,
Pipe Wrench, 10 inch, Appendix B, Section III, item 2
Servicing the equipment with the system pressurized
can result in serious personal injury.
Discharging nitrogen In an enclosed, un-ventilated
Antisieze Tape, Appendix E, Section II, item 4
can cause suffocation.
Lock Washers (2), Appendix H, item 3
Close cylinder valves and relieve system pressure per
paragraph 4-11 steps (1) and (2).
Servicing the equipment with the system pressurized can result in serious personal injury.
Discharging nitrogen m an enclosed, unventilated space can cause suffocation.
Removal (See figure4-10.)
Disconnect fitting (1) from swivel adapter (2).
Disconnect fitting (3) from cylinder valve.
Remove screw (4), lock washer (5) and regulator (6) assembly
Disconnect fitting (7) from elbow (8).
Disconnect elbow (8) from nipple (9).
Dry chemical system only:
Disconnect nipple (9) from bushing (10).
Disconnect bushing (10) from regulator (6)
AFFF system only:
Disconnect nipple (9) from regulator (6).