brake racing-Calipers to open the adjustment of the degree of
First check brake racingthe shape of the jaw， jaw shape measurement accuracy， you should pay attention to regular trimming the shape of the jaws， jaw shape of good and bad contrast。 Adjust the opening of the caliper， gently tap the calipers on both sides of the foot surface。 Caliper adjustment with both hands and the size of the workpiece close to the opening， and then tap the outside of the caliper to reduce the opening of the caliper， tap the calipers the inside to increase the opening of the caliper。 This is because the caliper jaw injury in the amount of surface caused by measurement error。 More knocking on the rail of the machine calipers。