TM 9-2350-247-20-1
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS — Continued
0128 00
ITEM
NO.
INTERVAL
MAN-
HOUR
ITEM TO BE
CHECKED OR
SERVICED
CREWMEMBER
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE
IF:
63
Semi-
Annual
(M548A3)
Quick
Disconnect
Coupling
a. Check quick disconnect coupling for proper fit
on protective mask and orifice connector
assembly. Replace any defective coupling
(WP 0538 00).
64
Semi-
Annual
(M548A3)
Orifice
Connector
Assembly
a. Check valve and general condition of orifice
connector. Replace valve or orifice connector as
required (WP 0538 00).
65
Semi-
Annual
(M548A3)
Air Flow
(3.0–4.5 cfm)
(.08–.13 cum)
NOTE
Air flow should be 3.0–4.5 cfm (.08–.13
cum) (cubic feet/meter per minute)
a. Check each station using M39 air flow tester
TM 3-6680-316-10.
66
Semi-
Annual
(M548A3)
ID Plate
a. Replace identification plate if not legible
(WP 0440 00).
67
Semi-
Annual
(M548A3)
Paint
a. Paint surface to prevent rust or corrosion
TB 43-0209.
0128 00-78
