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
D
B
1
ALL EQUIPMENT
Check to insure that all components (para 1 -7) are on hand. Inspect for rust, sand and
0.1
other foreign materials.
2
TANKS
Inspect for cracks, dents, loose or damaged exterior parts Insure that reserve lever
0.1
IS
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.
3
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)
4
REGULATOR
Inspect for leaks and proper breathing resistance
0.1
5
HARNESS
Inspect for proper fit.
6
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
