Nakayama PB4500, Manual, Page: 18 / 28

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3 . Assemble the cutting head.
Release the nut. Line up the two holes of flange and shield, use one screw driver to hold
the flange as below and turn the socket wrench clockwise, the nut will be released.
Fit the Nylon cutting head. Remove another shield after release the nut. Still hold the
flange, take the Nylon cutting head on the shaft and rotate counter-clockwise, the Nylon
cutting head is fitted.
Release the Nylon cutting head. Use screw driver to hold flange and then rotate the
Nylon cut ting head clockwise, it will be replaced.
Fit the blade. Take the outer flange off after release the nut, then put the blade, outer
flange, shield and nut according to priority as below picture. Note the blade rotation
direction needs be same as bel ow picture. Use screw driver to hold flange and tighten nut
counter- clockwise, ensure the nut is tightened enough.
Release blade. Use screw driver to hold flange and release nut, the blade can be took off.