Mittler Bros Machine & Tool 2800 Straight Brake - Manual (Page 8)

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ADJUSTMENTS
When your brake was assembled at the factory it was adjusted for proper operation. Due to handling
and repositioning, the brake may require adjustment and alignment. Read the adjustment and
operating instructions completely before making any adjustments. Operate the brake and bend some
material first before attempting any major adjustment.
For the following adjustment, use test strips of metal, each approximately 3 inches by 3 inches, of the
thickness being formed.
Over-bending
Check end-to-end alignment by clamping two test strips in the brake, about 3 or 4 inches away from
either end of the brake. Bend to about 90 degrees, and see if they appear to be bent to the same
degree. Remove them from the brake and stack one inside the other. Compare the sharpness of the
radius. If one test strip is over-bent or has a sharper radius, slightly move the end of the clamp head
which that strip came from. The clamp assembly should be moved back on the end where the over-
bending occurs by slightly unclamping the clamp handle, loosening the bracket lock screw and
turning the adjusting bracket screw. When the correction is made, retighten the bracket lock screw.
OPERATION
Your brake is a general purpose tool for bending and forming sheet metal. The brake is operated in
the following manner. The Upper Clamp Head of the brake is opened by pushing the clamp handles
toward the rear of the brake. Insert the material to be bent into the opening between the Upper Clamp
Head and Bed Table and clamp the material in place by pulling the clamp handles forward. Raise the
apron to bend the material to the desired angle.