TM 5-4220-233-14
2-7.
COMPRESSED GAS SYSTEM OPERATION: RECHARGING STORAGE CYLINDERS
a.
Preparing Servicing Unit for Recharge
WARNING
Care should be taken when working around high pressure air systems.
Pressure should always be vented before hoses are connected or
disconnected from the control panel. Failure to follow this warning may
result in personnel injury or death.
Figure 2-8. Preparing Servicing Unit for Recharge.
(1) Verify that the Servicing Unit is properly set for operation per paragraph 2-4 step e and all Before
PMCS has been completed for the Compressed Gas System (See table 2-1, items 9 thru 16).
(2) Open the front doors (1) to gain access to control panel.
(3) Verify that the servicing valve (2), recharge valve (3), and all 1/4-turn ball valves (4) on the control
panel (5) are closed.
(4) Remove the side panels (6) from the Servicing Unit control compartment.
(5) Slowly open the valve on each storage cylinder (7).
(6) Observe the reading on each storage cylinder pressure gauge (8) to determine which cylinders
need to be recharged.
(7) Note which cylinders need recharged, then close cylinder valves (7) for all cylinders.
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