GMC 4000 Series Service Manual page 102

G M C S E R V I C E M A N U A L
Refrigerant C a p a city . .................................................................. 3 lbs. 4 oz.
Refrigerant Oil Capacity (entire sy s te m )......................................... 11 oz.
Compressor Clutch Coil
Current (m axim um dem an d)...................................3.2 A m ps.'at 12v.
R esistance............................................................... 3.85 Ohms, at 80°F.
Compressor Belt Tension (Using Tension Gauge)
N ew ................................................................................... 130 to 140 lbs.
U sed.................................................................................. 100 to 105 lbs.
Circuit B re a k e r................................................................................. 30 Amp.
Heater and AC Blower F u se ...........................................................15 Amp.
Evacuation Period (@ 26 to 28 in. of v a c .)......................... 15 to 30 min.
Refer to "Insufficient Cooling Diagnosis Chart" on following two pages.
SPECIFICATIONS
Sec. 1
Page 95
AIR CONDITIONING