Pages 31–43 (13 pages)

Minor Services and Repairs: Refrigeration

From the 1956 Pontiac Air Conditioning Manual

Procedures that open the refrigeration system: depressurizing, evacuating with the compressor, charging 5 pounds of Freon-12 and adding Freon, and checking and adding Frigidaire 525 compressor oil. It covers compressor removal, replacing a malfunctioning compressor, shaft seal and clutch or coil replacement with clutch air-gap checks, condenser, receiver, evaporator and expansion valve removal, and collision service (printed page 44 appears first, at PDF page 31).

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What this section covers

  • Depressurizing and evacuating the system
  • Charging the system and adding Freon
  • Checking compressor oil level and adding oil
  • Compressor removal and replacement
  • Compressor seal replacement
  • Clutch or coil replacement and air gap
  • Condenser, receiver, evaporator and expansion valve
  • Collision service
Year
1956
Make
Pontiac
Vehicle
Components and Systems, Heating and Air Conditioning, Passenger Cars
Type
Service Manual
Models
1956 Pontiac passenger cars with factory air conditioning (Frigidaire five-cylinder compressor)
Publication
S-5604AC
Pages
50

What’s inside

Air conditioning shop manual

  1. Description and Operating Instructionspp. 1–4
  2. Principles of Operationpp. 5–19
  3. General Information on Refrigeration Servicepp. 20–24
  4. Inspection, Periodic Service and Adjustments on CarNew car pre-delivery and 2000-mile inspections, periodic filter cleaning and condenser checks, and on-car adjustments of the compressor belt, air valve and thermostat control cables, clutch and relay control switch and thermostatic expansion valve.pp. 25–27
  5. Minor Services and Repairs: MechanicalRepairs that do not open the refrigeration system: control panel, control assembly and cables, blower switch, nozzles, air inlet and filter, blower, air distributor and thermostat, and moving the compressor to service the engine. Pages are in reverse order in this scan.pp. 28–30
  6. Minor Services and Repairs: Refrigerationpp. 31–43
  7. Testing and Diagnosispp. 44–48
  8. Specifications and Special ToolsSpecifications that differ on air-conditioned cars (compressor, belts, Freon capacity, generator, regulator, torques) and the list of J-numbered special tools for servicing the system.pp. 49–50

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