This guide will show you how to clean the ITM optics. You will need to do this if the beam is not a nice “solid” beam.
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You will need the following items:

cleaning kit and tools without liquids part# 70002811
Switch off electrical power and air supply

Remove access panels

Insert cleaning tool and rotate 70 to 80 degrees.

Clean with solvent and soaked swab.

Clean with dry swap.

Dry optics with clean air.

Clean and inspect.

Assemble access panel.

Repeat for both sides.

Restore electrical power and air supply.

Check laser beam.

