Safety and Dressing Guide for Seat Grinder Wheels

January 9th, 2013

The Kwik-Way Heavy Duty Wheel Dresser

WHEELS commonly referred to as Seat Grinding Stones or Rocks.

The most common cause of wheel breakage is due to improper mounting and abusive and/or careless  operation.  Only  through  proper  use,  regular  grinding machine  maintenance,  service  and inspection procedures can wheel breakage be prevented.
 
It  is  the  responsibility  of  the  user  to  inspect,  at  regular  intervals,  to  be  certain  that  mounting flanges are in usable condition, are of proper size and shape and that no damage has occurred to the wheel or the machine.
 
The following DO'S and DONT'S should be used as a guide to safer grinding

DO's DON'Ts
CHECK all wheels for CRACKS or other
DAMAGE before mounting.
DON'T USE wheels WHICH HAVE BEEN
DROPPED or otherwise damaged.
USE MOUNTING BLOTTERS when
supplied with wheels
DON'T USE EXCESSIVE PRESSURE
WHEN MOUNTING wheel.  Tighten nut only
enough to hold wheel firmly.
Be sure WHEEL HOLE, threaded or
unthreaded, FITS machine arbor
PROPERLY and that flanges are clean, flat
and of the proper type for the wheel you
are mounting.
DON'T USE HEAVY GRINDING
PRESSURE
Always RUN WHEEL WITH GUARD IN
PLACE at least one minute before grinding
(wheel dresser).
 
Always WEAR PROTECTIVE SAFETY
GLASSES or proper face shield.
 
Wear a DUST RESPIRATOR, as dust
conditions are present in most grinding
operations
 

WARNING
IMPROPER USE MAY CAUSE BREAKAGE AND SERIOUS INJURY.

 

KWIK-WAY WHEEL DRESSER SET-UP

  1. Loosen handle #3 and rotate the pointer line until it aligns to the index angle desired and retighten.
  2. After attaching the correct grinding wheel to the grinder unit, carefully lower the grinder unit onto the dresser arbor item #1
  3. Loosen item #5 and raise or lower the arbor until the face of the wheel is in relative position to the diamond (#6). Retighten # 5
  4. Adjust the diamond #6 by turning the knurled knob #2 until the diamond is nearly in contact to the face of the grinding wheel.
  5. Engage the grinder motor hex drive to the hex cap on the grinder unit start the motor and begin  dressing  the  wheel  using  handle  #  4  and  slowly  sweeping  the  face.  (Follow  the directions below)

DRESSING OR TRUING THE VALVE SEAT WHEEL

It is necessary to true or dress seat wheels that have become dull or loaded, or have lost their form (angle). To obtain the best possible dress, observe the following.

  1. Feed the diamond into the wheel very slowly until the diamond just touches the wheel.
  2. Move the diamond across the face of the wheel beginning from the bottom and sweep up.  A slow sweep will provide a smoother finish while a rapid sweep will provide a coarse finish. 

NOTE: How  the  wheel  is  dressed  will  directly  influence the finish of the valve seat. Take care when dressing the seat wheels, this will improve valve seat finish and increase diamond life. Check the  dress  of  the  wheel  frequently  during  the  seat  grinding  operation.  It  is  better  to  dress frequently and remove a slight amount of wheel than to wait too long and have a necessity to remove an excessive amount to correct the wheel 

Changing a valve seat stone angle is only advised if it is to increase the stone angle, i.e., taking a 15-degree angle wheel and making it a 30-degree. 

It is not cost effective to attempt to reduce an angle, too much abrasive and diamond is required to perform this operation.