Operating Recommendations for Diamond wheel

Coolant:
Should be used whenever possible. It extends wheel life by as much as 50% and keeps wheels clean and sharp.
     1)   Use half as much down feed when grinding dry with resin bond wheels.
     2)   Never use metal bond wheels dry.
Caution:  Heavy cuts, especially when grinding dry, may overheat and permanently damage the diamond section of your wheel.

Dressing:

Keeps your wheel clean, sharp, and fast cutting.
     1)    Use aluminum oxide dressing sticks for resin bond wheels.
     2)    Use silicon carbide dressing sticks for metal and vitrified bond wheels.
     3)    Wet the dressing stick and apply it to the diamond wheel face.
     4)    At first, there will be back pressure as you hand feed.  However, once the stick is consumed as fast as you feed it, the wheel is conditioned and ready to use.

Truing:
Super-abrasive wheels must be trued to each machine for precision grinding.
Manually center your wheel by placing a wooden block at the point of farthest run out and gently tap wheel toward center.  Choose from one of the below methods to continue:
Mild steel block method:
     1)   Take a piece of EN9 steel approximately 6" x 3" on a surface grinder and run the wheel at 5,000 SPFM, the table at 
            100 FPM using a depth of .001" per pass and a .050" - .100" cross-feed.
Friction of brake dresser method (Recommended method up to 8" diameter): 
     1)   Use a conventional wheel to true the silicon carbide dressing wheel.  Place the dressing wheel at a 15°« angle to
            the super abrasive wheel.
     2)   Start the dressing wheel spinning by using a pencil, then down feed .001" per pass until the wheel is trued.
Power Dressing Method (perform wet, if possible):
     1)   Run a 120 grit silicon carbide conventional grinding wheel at 5,500 to 6,500 SFPM and the super-abrasive wheel at 100 to 300 SFPM.
     2)   Pass the conventional wheel at 5 - 20 in./min/ and in-feed .001" - .003" per traverse. Continue until super-abrasive  wheel is trued.

Normal Operating Speeds:

     Resin bond: 4,000 to 6,500 SFPM
     Metal bond:  4,000 to 6,000 SFPM