ISM, ISMe, and QSM11 – 012-014   Air Compressor

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.

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.

• Use steam to clean the air compressor. Dry with compressed air.
• Remove the fuel pump. Refer to Procedure 005-016 in Section 5.
• Drain the engine coolant. Refer to Procedure 008-018 in Section 8.
• Remove the coolant lines from the air compressor.

Remove the air connections from the air compressor.

Remove the air compressor support bracket and capscrews.

Remove the four capscrews, the air compressor, and splined coupling.

Inspect the compressor housing for cracks or damage.

Inspect the splined coupling for cracks or damage.

Position the timing mark on the air compressor crankshaft at the 12:00 o’clock position.

Position the accessory drive shaft dowel pin at the 2:00 o’clock position as viewed from the front of the engine.

Install the splined coupling on the accessory drive shaft.

Be sure the gasket surfaces of the accessory drive and air compressor are clean and not damaged.

Use a new gasket to install the air compressor and four capscrews to the accessory drive.

Install the air compressor support bracket.

• Install the fuel pump. Refer to Procedure 005-016 in Section 5.
• Fill the engine cooling system. Refer to Procedure 008-018 in Section 8.
• Operate the engine and check for leaks.