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SPECIFICATIONS - TM-5-4210-230-14P-1_312
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TORQUE CHART - TM-5-4210-230-14P-1_314
TRUCK SERVICE MANUAL TM 5-4210-230-14&P-1 BODIES AND CABS SPECIFICATIONS (Continued) OPERATING PRESSURE TEST CHART A properly charged and functioning air conditioning system should indicate the readings shown below with the engine operating  at  the  speed  shown  in  ENGINE  SPEED  CHART,  blower  on  "HIGH"  speed,  control  lever  on  "COLD"  and both cab doors open. RELATIVE HUMIDITY BELOW 30% Ambient Average Compressor Passenger Inboard Temperature Refrigerant Pressures Outlet Air C (F) Temperature HEAD SUCTION C (F) 20 (68)* 880-1080 kPa (125-155 psi) 61-89 kPa ( 9-13 psi) 5-6 (41-43) 25 (77)* 1130-1330 kPa (160-190 psi) 67-95 kPa (10-14 psi) 5-6 (41-43) 30 (86) 1380-1580 kPa (200-230 psi) 76-104 kPa (11-15 psi) 5-6 (41-43) 35 (95) 1630-1830 kPa (235-265 psi) 104-132 kPa (15-19 psi) 7-9 (45-48) 40 (104) 1790-1890 kPa (260-290 psi) 134-162 kPa (19-23 psi) 10-13 (50-55) RELATIVE HUMIDITY ABOVE 30% Ambient Average Compressor Passenger Inboard Temperature Refrigerant Pressures Outlet Air C (F) Temperature HEAD SUCTION C (F) 20 (68)* 1115-1315 kPa (160-190 psi) 84-112 kPa (12-16 psi) 5-6 (41-43) 25 (77)* 1360-1560 kPa (195-225 psi) 108-136 kPa (16-20 psi) 7-9 (45-48) 30 (86) 1600-1800 kPa (230-260 psi) 132-160 kPa (19-23 psi) 11-13 (52-55) 35 (95) 1850-2050 kPa (270-300 psi) 178-206 kPa (26-30 psi) 14-17 (57-63) 40 (104) 2090-2290 kPa (300-330 psi) 236-264 kPa (34-38 psi) 18-21 (64-70 *  System  may  cycle  at  these  ambient  temperatures.    Test  readings  listed  are  those  that    will  occur  just  prior  to compressor cycling off. CTS-2731  Page 46 PRINTED IN UNITED STATES OF AMERICA

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