SCUBA TANK FILLING.

TB 5-4220-200-12-1

2-8 SCUBA TANK FILLING.

Prior to charging SCUBA cylinders refer to paragraph 2 3f Charge cylinders in accordance with instructions con-

tained in Chapter 5 of FM 20-11-1, "Military Diving Manual"

Table 2-1. PRE-DIVE PREVENTIVE MAINTENANCE CHECK AND SERVICES

B-PRE-DIVE (OUT OF WATER)

D-PRE-DIVE (IN WATER)

TIME REQUIRED: 0.3

TIME REQUIRED: 0.1

Interval

Items to be Inspected

Work

and

Procedure

Time

Sequence

M/H

ALL EQUIPMENT

Check to insure that all components (para 1 -7) are on hand. Inspect for rust, sand and

0.1

other foreign materials.

TANKS

Inspect for cracks, dents, loose or damaged exterior parts Insure that reserve lever

0.1

n the unactivated (UP) position to indicate the tanks are filled and ready for use, In-

spect manifold for visible damage.

Check tank pressure with diver's pressure gauge. Tank pressure must not exceed

2250 PSIG unless there is a plus sign after the current hydrastatic test date which,

would allow for a 10% overfill.

Inspect harness quick-release mechanism and adjust straps for secure, comfortable

it.

REGULATOR

Inspect cap assembly O-Ring and filter for damage and foreign material. Check for

0.1

proper seating, leaks and proper breathing resistance. With the first stage regulator

cap assembly seated over the body filter assembly opening, attempt to breathe from

he second stage regulator. Any air received indicates an air leak in the first or second

stage regulator. Inspect hose for punctures and dry rot. Tug gently on hose to insure

secure connections.

(IN WATER CHECKS)

REGULATOR

Inspect for leaks and proper breathing resistance

0.1

HARNESS

Inspect for proper fit.

BUOYANCY

Check for neutral buoyancy.

WARNING

If there are any doubts concerning correct operation of any compo-

nents, do not dive until they have been checked.

2-4