Tapered Milling Arbor Bushing Installation

Mount the bushing securely in the support arm using the original locknut (A).
Tighten the arbor locknut (B) leaving the overarm locknuts free.
Position the support arm, equalizing the 1/8" horizontal sleeve movement in the arbor bushing (N Series arbor bushings only).
Tighten the overarm locknuts (C)