Compressor Assembly

1. Install manifold gauge set (1) as shown in the figure.
2. Close Hi (4) and Lo (5) hand valves.
3. Run engine at fast idle.
4. Check compressor for following items.
If any of the above checks indicated a defect, repair compressor.
- High pressure gauge reading is not low and low pressure gauge reading is not higher than normal.
- Metallic sound.
- Leakage from shaft seal.