Pushing the brake wrench(Fig. 3-e.○6) by hand and insert it in the hole of the belt pulley(Fig. 3-e.○5). The other end is using the open spanner (Fig. 3-e.○8) to rotate the nut. The grinding wheel will be fixed. Be careful!According to unexpected to protect law stipulate each grinding wheel install while finishing and then in installation, try rotating for 3 minutes at least, is forbidden to have personnel to enter the hazardous area within this period of time.
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