9.2 Inspections and Tests

Periodic inspections will help keep the A/C operating at its peak. There are almost always small leaks in the system which will require that it eventually be recharged with R-12. The V-belt which drives the compressor is subject to wear. The condenser fins can become bent or covered with debris, reducing air flow and raising system pressure to damaging levels.

With the engine off, clean any debris or bugs from the front of the condenser, and straighten any bent fins using a fin comb. Remove the air plenum drip tray and check the fresh air intake for obstructions. Inspect the compressor, the hoses, and all visible components for any oil leaks, which are often seen at the bottom side of the fittings and components. Inspect the wiring to the pressure switches and compressor clutch. Check the compressor mountings for tightness, and check the condition and tension of the V-belt as described in LUBRICATION AND MAINTENANCE.