Centinel System – Repair Manual – 012-004   Air Compressor Coolant Lines

WARNING  Do not remove the pressure cap from a hot engine. Wait until the coolant temperature is below 50°C [120°F] before removing the pressure cap. Heated coolant spray or steam can cause personal injury.

WARNING  Coolant is toxic. Keep away from children and pets. If not reused, dispose of in accordance with local environmental regulations.

WARNING  When using a steam cleaner, wear safety glasses or a face shield, as well as protective clothing. Hot steam can cause serious personal injury.

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

• Drain the cooling system. Refer to Procedure 008-018 in Section 8.
• Use steam to clean the air compressor. Dry with compressed air.

Inspect the coolant hoses for splits, cracks, hardening, or other damage.

Inspect the metal coolant lines for kinks, corrosion, cracks, or other damage.

Remove the coolant lines from the air compressor.

Inspect the drive clips or the connectors for damaged threads.

Inspect the coolant hoses for splits, cracks, hardening, or other damage.

Inspect the coolant lines for restrictions of coolant flow.

Replace the coolant lines if any damage is found.

Use two elbows and run the locking nuts all the way up prior to installation.

Start threading the elbows into the cylinder head.

Use a 24 mm open-end wrench to position the elbows.

Push the tube nut away from the bell flare on the U-shaped coolant supply line.

Position the sealing grommet behind the bell flare.

Install the U-shaped coolant supply line into the coolant supply elbow.

Verify the bell flare and grommet seat correctly in the elbow.

Start threading the compression nut onto the elbow.

Install the other end of the coolant supply line into the grommet in the cylinder block.

Push the tube nut away from the bell flare on the coolant return line.

Position the sealing grommet behind the bell flare.

Install the coolant return line into the coolant return elbow.

Verify the bell flare and grommet seat correctly in the elbow.

Start threading the compression nut onto the elbow.

Install the other end of the coolant return tube into the grommet in the cylinder block.

Install the capscrews in the two locations designated by the arrows.

Tighten the capscrews

Tighten the compression nuts and elbow locking nuts.

WARNING  Coolant is toxic. Keep away from children and pets. If not reused, dispose of in accordance with local environmental regulations.

• Fill the cooling system. Refer to Procedure 008-018 in Section 8.
• Operate the engine and check for leaks.