TM 5-2420-230-24-1
Do not open high side valve on manifold gauge set while charging the A/C system.
(10) Slowly open valve (3) on manifold gauge set (1).
(11) Continue charging until bubbles disappear from receiver-drier sight glass (Table 19-2) and high side/low side
pressures are within acceptable range (Table 19-3).
(12) Close refrigerant tank valve (11) on R-134a refrigerant tank (12).
(13) Close valve (3) on manifold gauge set (1).
(14) Shut off engine (TM 5-2420-230-10).
(15) Disconnect charging hose (6) from R-134a refrigerant tank valve (11).
(16) Disconnect manifold gauge set (1) from A/C compressor.
e. Follow-On Maintenance.
(1)
Lower hood (TM 5-2420-230-10).
(2)
Start engine and functionally test A/C system (TM 5-2420-230-10).
(3)
Shut OFF engine (TM 5-2420-230-10)
(4)
Remove "Do Not Operate" tag from ignition switch (TM 5-2420-230-10).
END OF TASK
19-9