AIR CONDITIONING SYSTEM MAINTENANCE - CONTINUED
CHARGING - CONTINUED
Start engine and run at 1,500 RPM. Set cab A/C controls at maximum cooling and fan speed; refrigerant compres-
sor must engage.
If a charge did not enter system, place tank (bulk container) in upright position, then open LOW-SIDE valve to
draw vapor into system. Leave valve open until correct weight of refrigerant has entered system, then close low-
If refrigerant is slow to enter system because of low outside temperatures, vaporization can be quick-
ened by placing refrigerant tank in a tub of warm water, no warmer than 125F (52C).
Disconnect high-side hose. With engine running, open low-side and high-side hose valves to recover refrigerant from
Shut down engine.
Check operation of A/C system (TM 10-3630-675-10).
END OF WORK PACKAGE