TM 5-4220-226-14&P
Table 2-6. Postdive Procedures - CONT
Step
Procedure
1. Doff helmet - continued.
b. Pull nose clearing device fully outward; unfasten chin strap. Then,
grasping the lower opening, thumbs inside to hold head cushion in
place, push forward and up on the helmet.
c. After helmet is removed, the umbilical strain relief shackle is
disconnected from the harness.
d. Neck dam and yoke is removed by hinging the neck clamp from
the yoke and pulling neck dam/neck clamp up and over the head.
Let the yoke hinge open and slip off the neck to the rear.
2. OFF air.
a. Secure the main air supply.
b. Close the emergency air supply cylinder valve.
c. Open the emergency air supply valve and press purge button to
bleed air in whip and side block assembly.
d. Obtain a pressure reading for the emergency air cylinder between
each dive.
3. Doff equipment.
a. Remove diver's weight belt.
b. Remove emergency air supply.
c. Remove harness/vest.
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