Cutting wheel must be carefully checked

Cutting wheels must be carefully checked and identification prior to installation. To check the identification of:
1. Check the wheel grade is correct, it meets all the selection grinding wheel performance, shape and size.
2. Check the appearance of the structure and differential wheel situation. With the eye whether the appearance of damaged wheel (or cracks). The appearance of damage (or crack) the wheel can not be used. Another requirement wheel ends flat surface, no obvious skew.
3. Check the grinding wheel and differential internal cracks. By hand and wheel, grinding wheel with a wooden hammer tapping hear its sound, no crack crackled wheel, the wheel is cracked hoarse voice, which can not be used.