TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
Page 528 of 1555
TM 9-2320-387-24-2 Table 14-2. Normal Operating Pressures and Temperatures. AMBIEM HIGH SIDE LOW SIDE TW PRESSURE PRESSURE 85 so 95 100 225-175 PSI CYCLING (TIMES PER MINUTE 190-185 CONDENSER FANS ENGAGE AT 225 PSIG THEN DROP TO ABOVE CONSTANT PRESSURES 223-221 PSI LJNITRUNS coNTINuousLY NO CYCLING 233-230 PSI UhTl’RUNS COhTlNUOUSLY NO CYCLWG 32-26 PSI CYCLING iE% 35-32 PSI 48.00 48.00 3D%Rn Io%Rl. 5D%RH 51.40 54.20 59.00 iO%RH 63.00 7D%RH 66.60 3o%RH 69.80 Kt%RH 73.40 76.60 50.00 50.80 50.60 54.40 58.40 61.20 64.00 68.00 71.60 74.80 77.60 34-33 PSI 53.00 53.00 53.84 55.52 60.14 64.76 69.38 74.42 77.78 80.72 83.24 37-36 PSI 58.00 58.00 58.00 58.84 62.62 67.86 79.00 81.94 84.86 87.82 89.92 T D%RH ACCECPTABLE FROM AND REAR EVAPORATOR LOUVER TEMPERATURES AIR CONDITIONING TROUBLESHOOTING SYMPTOM INDEX I 1 1 oo%RH MAlFUNCTlON NO. MALFUNCTION TROUBLESHOOTING PROCEDURE PAGE AIR CONDITIONER ;: 3. :* 6: Insufficient cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intermittentcooling.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : 1: 1: : : : 14-19 14-21 AIR CONDTIONER COMPRESSOR Insufficient cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unusual noise with clutch engaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-21 Unusual noise with clutch disengaged . . . . . . . . . . . . . . . . . . . . . . . . . . 14-22 14-22 Incorrect oil level or leak. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-22 14-18