Truck/Trailer Refrigeration Unit - Sunbelt Transport Refrigeration

TABLE OF CONTENTS (CONT’D)SectionPage4 SERVICE (CONT’D) ..................................................... 4-14.5 Servicing And Adjusting V-Belts ............................................ 4-64.5.1 Belt Tension Gauge ............................................... 4-64.5.2 Servicing and Adjusting V-belts (Truck Units) ......................... 4-74.5.3 Servicing and Adjusting V-belts (Trailer Unit) ......................... 4-74.6 Servicing Clutch (Trailer) .................................................. 4-94.7 Pumping The Unit Down Or Removing The Refrigerant Charge ................ 4-104.8 Refrigerant Leak Checking ................................................ 4-104.9 Evacuation And Dehydration .............................................. 4-104.9.1 General ......................................................... 4-104.9.2 Preparation ...................................................... 4-104.9.3 Procedure for Evacuation and Dehydrating System ..................... 4-104.10 Charging The Refrigeration System ......................................... 4-134.10.1 Checking the Refrigerant Charge .................................... 4-134.11 Replacing The Compressor (Truck) ......................................... 4-134.12 Replacing The Compressor (Trailer) ........................................ 4-134.13 Checking Compressor Oil Level ............................................ 4-144.14 Compressor Unloader Valve ............................................... 4-154.15 Checking And Replacing Filter-Drier ....................................... 4-164.16 Checking And Replacing High Pressure Cutout Switch ......................... 4-164.16.1 Replacing High Pressure Switch ..................................... 4-164.16.2 Checking High Pressure Switch ..................................... 4-164.17 Replacing Receiver Sight Glass Assembly .................................... 4-174.18 Servicing Solenoid Valves ................................................. 4-174.18.1 Solenoid Valves --- Alco ........................................... 4-174.18.2 Solenoid Valve --- Sporlan ......................................... 4-184.19 Condenser Coil Cleaning .................................................. 4-184.20 Adjusting The Compressor Pressure Regulating Valve (CPR) ................... 4-184.21 Microprocessor .......................................................... 4-194.22 Configuration Of Microprocessor .......................................... 4-204.23 Controller Sensor Checkout ............................................... 4-214.24 Suction Pressure Transducer ............................................... 4-214.25 5KW Generator --- Trailer ................................................ 4-224.26 1.5KW Single Phase Alternator (Generator) --- Truck ......................... 4-234.27 Servicing Phase Sequence ................................................. 4-244.28 Torque Values --- Truck ................................................... 4-244.29 Unidrive Torque Requirements --- Trailer ................................... 4-244.30 Thermostatic Expansion Valve ............................................. 4-264.31 Replacing Evaporator Fan Motor ........................................... 4-274.32 Evaporator Coil Cleaning ................................................. 4-274.33 Evaporator Electrical Connections .......................................... 4-275 ELECTRICAL SCHEMATIC WIRING DIAGRAM5.1 Introduction ............................................................ 5-1iii 62-02884