Job Description:

• 1) Laps pistons and slides of brass musical instruments to ensure that joints slide freely: Screws piston onto shaft attached to handle, and brushes pumice compound onto piston.

• 2) Inserts piston into matched valve, and laps it until it moves freely.

• 3) Moves sliding joints to detect binding action.

• 4) Applies abrasive compounds to slides, and files and laps them until they move freely.

• 5) Inspects soldered joints for excess solder and rejects unacceptable joints.