![background image](http://html.mh-extra.com/html/gmc/pbr-0412/pbr-0412_operation-and-parts-manual_2235734011.webp)
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4.After the bending roll titling degree is set up correctly, please put the coupler
back and connect properly, then tighten the set screw to lock the coupler.
5. Put the sector material into the rolls, and crank the big hand-wheel to move the
pinch roll up till barely touching the sector material, one side of the sector material
will keep touching against the cone attachment while rolling it.
Material against
cone attachment.
Make this cone
attachment vertical