TM 5-4220-227-14
5-8. Medical Lock (M/L) Inner Door Assembly (Cont)
b. Repair. (figure 5-4)
(1) Remove medical lock inner door assembly, see para. a. above.
(2) Remove knob (1) and washer (2) from hold bolt (3).
(3) Remove nut (4), allen head screw (5) and hold bolt (3) from fitting (6).
(4) Remove and save valve (7) from inner door (8).
(5) Remove preformed packing (9) from seal groove in medical lock.
(6) Clean all components using nonionic detergent cleaner and rinse with clean distilled water.
(7) Using lint free cloth, remove grease from seal groove and clean groove.
(8) Apply grease to seal groove and preformed packing (9) and install preformed packing in seal groove.
(9) Apply teflon tape to threads on valve (7) and install on valve on inner door (8).
WARNING
Leave 1 1/2 threads exposed on fitting when applying teflon tape. This will ensure that
no teflon tape will hang down inside the air system. Teflon tape should be wrapped in
such a manner that when the fitting is tightened the tape will not loosen. Failure to wrap
teflon tape correctly may result in contamination or blockage of the air system and
subsequent possible injury or death to the diver.
(10)
Install hold bolt (3) in fitting (6) and secure with allen head screw (5) and nut (4).
(11)
Install washer(2) and knob (1) on hold bolt (3).
(12)
Install medical lock inner door assembly, see para. a. above.
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