Have to use a grinding wheel products factory manual, very detailed records of the above to be carefully watched.

Second, before use of the grinding wheel to be vacant tapping with a mallet, the sound should be crisp, metallic sound! If the sound is muffled, as compared to the voiceless, the general is in transit collision, will never be allowed to use!

Conditional of course, the best high-speed rotation experiments! General rotation at 1.6 times the operating speed for 1 minute, not broken, cutting wheel,proved qualified, you can use!