Cummins N14 STC, Celect, Celect Plus – Service 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.

• Drain the cooling system. Refer to Procedure 008-018 in Section 8.

Inspect the coolant lines for kinks, corrosion, or cracks.

Replace any damaged components.

Remove the coolant lines from the air compressor, cylinder block, and water pump.

NOTE: If rubber grommets are used on the coolant lines, make sure they are installed carefully to prevent cuts or tears to the grommets which can cause coolant leaks. When flexible tubing is used, make sure that it does not rub any other surfaces.

Connect the tubes to the fittings on the air compressor cylinder head, thermostat support, and block.

Make sure the tube extends into the fitting as far as possible.

Install the coolant lines to the air compressor and water pump.

Install the coolant line to the thermostat housing.

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.