Installation (3500 HD, Cab & Chassis, Sierra, Silverado)
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NOTE:
Take the following measures when installing sealing washers:
- Keep dirt and foreign material from the sealing surfaces of the washers, the hose block, and the compressor ports. Clean all of the sealing surfaces with a lint-free rag.
- Do not reuse sealing washers.
- The sealing washers do not need oiling prior to assembly.
Install the sealing washer onto the pilots of the suction/discharge block fitting. The washers must bottom against the surface of the block fitting. See Fig 1. Install the hose block to the compressor. Ensure that the sealing washers are seated within the compressor machined surfaces. See Fig 2. Hold the block in place. Tighten to specification. See TORQUE SPECIFICATIONS .