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4.Assemble the cutting head.
4.1Release the nut.
Line up the two holes of flange and shield, use one hex kep to hold the
flange as below and turn the socket wrench clockwise, the nut will be released.
4.2
Fit the Nylon cutting head.
Remove another shield after release the nuts as picture
showing. Still hold the flange, take the Nylon cutting head on the shaft and rotate
counter-clockwise, the Nylon cutting head is fitted.
