T8010/T8020/T8030/T8040 MASTER TABLE OF CONTENTS AIR CONDITIONER SYSTEM SERVICE.........................................................................SECTION 50, CHAPTER 2 SPECIFICATIONS ...................................................................................................................................... 50-2-4 SPECIAL TORQUES .................................................................................................................................. 50-2-4 SPECIAL TOOLS ........................................................................................................................................
50-2-4 SAFETY PROCEDURES ............................................................................................................................ 50-2-9 AIR CONDITIONER SYSTEM REFRIGERANT RECOVERY .................................................................. 50-2-10 RECOVERING PURE 134A REFRIGERANT ........................................................................................... 50-2-12 RECOVERING CONTAMINATED REFRIGERANT WITH OEM1691 ...................................................... 50-2-16 Preparing the Tank ..................................................................................................................................
50-2-16 Recovery Process ................................................................................................................................... 50-2-20 AIR CONDITIONER SYSTEM EVACUATION AND RECHARGING ........................................................ 50-2-26 AIR CONDITIONING TEMPERATURE/PRESSURE CHART .................................................................. 50-2-33 A/C SYSTEM FLUSHING PROCEDURE ................................................................................................. 50-2-34 Required Tools ........................................................................................................................................
50-2-35 Precautions ............................................................................................................................................. 50-2-36 Component Flushing Procedure with Power Flush 17550 ...................................................................... 50-2-37 Complete Circuit Flushing Procedure with Power Flush 17550 .............................................................. 50-2-41 Back Flushing the Thermal Expansion Valve or Refrigerant Line ...........................................................
50-2-46 Post Flushing Procedures ....................................................................................................................... 50-2-48 Flushing Solvent Disposal ....................................................................................................................... 50-2-50 LEAK DETECTION ................................................................................................................................... 50-2-51 Electronic Testing with OEM1437 ...........................................................................................................
50-2-52 Fluorescent Leak Detection .................................................................................................................... 50-2-53 Fluorescent Dye Injection ........................................................................................................................ 50-2-53 Fluorescent Leak Testing ........................................................................................................................ 50-2-59 A/C SYSTEM COMPONENTS .................................................................................................................
50-2-60 Cab HVAC Box Components - Automatic Temperature Control ............................................................. 50-2-60 Cab HVAC Components - Standard Systems ......................................................................................... 50-2-62 Chassis Components .............................................................................................................................. 50-2-64 A/C COMPRESSOR CLUTCH .................................................................................................................
50-2-65 Clutch Removal ....................................................................................................................................... 50-2-65 Exploded View of Clutch ......................................................................................................................... 50-2-71 Compressor Clutch Replacement ........................................................................................................... 50-2-71 A/C COMPRESSOR .................................................................................................................................
50-2-79 Oil Level Check or Adjustment ................................................................................................................ 50-2-79 Compressor Removal ............................................................................................................................. 50-2-82 Compressor Installation .......................................................................................................................... 50-2-85 CONDENSER AND RECEIVER-DRIER ...................................................................................................
50-2-87 Condenser ............................................................................................................................................... 50-2-87 Receiver-Drier ......................................................................................................................................... 50-2-88 ACCESSING THE HVAC BOX ................................................................................................................. 50-2-90 THERMAL EXPANSION VALVE TESTING ..............................................................................................
50-2-92 THERMAL EXPANSION VALVE REPLACEMENT .................................................................................. 50-2-93 EVAPORATOR AND CAB TEMPERATURE SENSOR LOCATION ........................................................ 50-2-95 BLOWER MOTOR REPLACEMENT ........................................................................................................ 50-2-96 HEATER CONTROL VALVE REPLACEMENT ........................................................................................ 50-2-97 EVAPORATOR/HEATER ASSEMBLY .....................................................................................................
50-2-98 Evaporator/Heater Assembly Removal ................................................................................................... 50-2-98 Evaporator/Heater Assembly Installation .............................................................................................. 50-2-101 Post Replacement Procedures ............................................................................................................. 50-2-104 EVAPORATOR/HEATER ASSEMBLY SEALING AND CLEANING ...................................................... 50-2-105 BLOWER AND EVAPORATOR REFERENCE ILLUSTRATION ............................................................
50-2-106 CONTROLLER AND BLOWER SPEED DRIVER REPLACEMENT ...................................................... 50-2-107 ATC Controller ...................................................................................................................................... 50-2-107 Standard A/C Controller ........................................................................................................................ 50-2-107 Blower Speed Driver (ATC Units Only) .................................................................................................
50-2-108 CAB AIR FILTER SERVICE ................................................................................................................... 50-2-109 12