B. ASSEMBLE THE STONE AND MANDREL UNIT
(Don't forget the wedge) Detailed instructions on the assembly of different types of honing units are found with the
mandrel stone assortment furnished (see back of this book).
C. INSERT THE HONING UNIT IN THE MACHINE.
1. Back off feed control knob all the way (counterclockwise); advance it clockwise slightly to move feed not more
than eight turns usually.
2. With stone mandrell, pull wedge back as far as is easily possible. Don't forget run-out compensator sleeve device,
which should be properly in place (some machines are equipped with accessory run-out compensation control which is
special equipment for this type machine).
3. Rotate spindle until larger set screw points upward. With stone of honing unit turned 900 to the right of the large
set screw, insert honing unit into the spindle as far as it will go, then rotate it 1/4 turn clockwise (to engage with spindle
feed) and push unit in until it bottoms. Then tighten the large set screw.
4. With the motor at OFF check your set-up by depressing and releasing the foot pedal. If the wedge does not move
forward and backward, it did not engage with the feed link. In that case, remove honing unit and repeat insertion steps.
SELECTION OF THE SPINDLE SPEEDS
As with other metalworking operations, there are proper spindle speeds for honing. These can be found best by
experience, because not exact rules of surface feet per minute can be followed. Heavier parts usually require slower
speeds, regardless of hole diameter. Use your chart Honing Guide for Honing Machines and Portable Hones.