Roper Whitney U616, Operation And Maintenance Manual

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SETTING 4. At each end of the machine, tighten upper toggle pin lock nut against the
CLAMPING toggle anchor (see Figure 3).
PRESSURE
5. At each end of the machine, pull the clamping lever forward against the
stop. Each end should require equal effort. Adjust one end, if
necessary, according to the general procedure above.
ADJUSTING FOR Under normal circumstances, clearance between the apron edge and the upper
MATERIAL beam radius bar should be approximately (2) times the material thickness for 16
THICKNESS ga. mild steel. For lighter gauge material, less clearance is required. One and
a half (1 1/2) times material thickness is usually sufficient. Soft material, such
as aluminum, may be formed with a clearance equal to the material thickness.
CAUTION
THE BENDING BRAKE CAN BE DAMAGED
Clearance must never be less than the material thickness.
Make the adjustment as follows:
1. With the upper beam lowered to the normal operating position, but not
clamped tightly against the bed, loosen the thickness adjustment
clamping screws located on both ends of the brake (see Figure 4).
2. Raise the apron to the 90 degree position.
CLAMPING LEVER
ANGLE STOP
STUD
THICKNESS ADJUSTMENT
CLAMPING SCREW
THICKNESS
ADJUSTMENT
SCREW
ANGLE STOP COLLAR
ANGLE STOP COLLAR
SET SCREW
ANGLE STOP ROD
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Figure 4. Material Thickness and Angle Adjustments.