Pulley Assembly Precautions

1. Gasoline must be used for the last cleaning before assembly to ensure that all parts of the pulley are clean and dry, so as to ensure that the mating surfaces are tightly fitted without oil stains and have sufficient friction.    2. The hexagon socket head cap bolts for assembly should also be washed with gasoline and dried before assembly. Do not apply lubricating oil or grease in the pulley bolts or screw holes to ensure sufficient friction and self-locking ability after the bolts are tightened.    3. When the three hexagon socket head bolts are about to be installed in place, they need to be tightened in turns to ensure that the tapered sleeve is subjected to uniform axial force and to ensure that the pulley and the tapered sleeve are well positioned coaxially.    4. Before installation, check and measure the length of the hexagonal socket head bolts for assembly to ensure that the assembly bolts can withstand the bottom end of the blind hole of the taper sleeve after tightening, so as to ensure that the taper surface fits tightly, and to ensure that the bolts are subjected to the reverse thrust at the bottom of the blind hole, resulting in The anti-loosening effect of the double nut principle is the same.    5. After the pulley is tightened, check and adjust the relative position of the main pulley and the driven pulley by pulling the wire to ensure that the two pulleys are on the same plane and the belt tension is moderate.

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