# Calibrating the position of the indexing stop nut

WARNING

Make sure that the air supply is not connected.

CAUTION

Wear gloves to avoid personal injury because of sharp cutting edges. Only experienced maintenance personnel can assemble or disassemble the product.

Required tools

- Vise

- Open-end spanner

1. Place the indexing stop nut roughly in position, and perform drill test holes to decide a more exact position.

   Always tighten the upper nut before a test hole is drilled.

2. Make the final adjustments to the position by turning the lower part of the nut.

   When making the final adjustments, the upper nut should be tightened lightly by hand. For each adjustment of 0.02 mm, a "click" is felt when turning the lower nut.

3. When the position is correct, tighten the upper locking nut.