TM 5-4220-233-14
b.
Recharging Storage Cylinders.
Figure 2-9. Recharging Storage Cylinders
(1) Remove dust cap from recharge port (1).
WARNING
The storage cylinders should only be filled with compressed breathing air
per BB-A-1034B, Grade A. Failure to follow this warning may result in
contamination of the Servicing Unit and any SCUBA cylinders filled by the
Servicing Unit.
(2) Using adaptor, connect fill hose from the appropriate compressed air source to recharge port (1).
NOTE
Storage cylinders may be charged individually or together. To Individually charge
cylinders only open the appropriate valves in steps 3 and 4.
(3) Slowly open all eight or the appropriate 1/4-turn ball valve(s) (2).
(4) Slowly open all eight or the appropriate cylinder valve(s) (3).
(5) If cylinders are to be charged together allow pressure in cylinders to equalize until readings on
appropriate cylinder pressure gauges (4) are equal, 200 psi.
(6) Slowly open recharge valve (5) to allow the cylinder(s) to be recharged in accordance with
applicable TM to a safe pressure (5,000 psi maximum).
WARNING
Never charge storage cylinders above the temperature compensated safe fill
pressure. Failure to follow this warning may cause personnel injury, death,
or equipment damage.
(7) When cylinder(s) have been recharged close recharge valve (5).
(8) If more cylinders are to be charged close cylinder valve to cylinder just charged and return to step
(3) to charge the next cylinder.
(9) When all cylinders are recharged bleed pressure from the compressed air source fill hose, then
disconnect the hose from recharge port (1). Remove, bag, and stow the adaptor.
(10) Install dust cap on recharge port (1).
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