Replacement Wheel Grinding Machine

1, open wheel guard, with a special wrench to loosen the screw cap (note that the cylindrical  Synthetic diamond of wire is inverted wire.) With a special handle to the wheel down (some wheel sets are inclined to be careful to fall), then driving crane down.
2, for another wheel, the first wheel flange and other parts clean, and then pulls into the grinding head, then  cubic boron nitride the main screw cap on it, with particular attention, with the grinding wheel contact surface can not have any debris, otherwise the wheel run instability.