(4)
Adjust screw "B" until it touches the upper blade.
(5)
Remove all nuts and washers from the blade bolts and remove those bolts that will pass the holddown fingers.
(6)
Shove the blade as far to the right, or the left, as the remaining bolts will allow. Special slotted holes will allow
removal of the remaining bolts.
(7)
Lower the blade bracket surface "C" by unscrewing bolt "B" and slide the blade out through the LEFT end of the
-machine.
To reinstall the upper blade, reverse the process.
To remove the lower blade, it Is necessary to first remove the cover at the rear edge of the shear table (not on 0200
series). If the blades have been reground, it will be necessary to place shims between the lower blade and its seat to
make the top of blade flush with the top of the shear table. These shims are held in place on the blade seat by spring
loaded pins. Notched shims are available from the factory in thicknesses of: 0.005", 0.10", 0.312", 0.625" and 0.125".
Be sure to return finger guard to its normal down position and replace gap guard.
POWER SQUARING SHEAR BLADES
The main feature desired in any blade regardless of its application is the ability to retain a keen edge at any
economical price.
Shear manufacturers, as well as blade and knife manufacturers, offer various grades of blades to obtain economical
use for different conditions. Basically, the industry has more or less standardized on three different grades of blades for
Power Squaring Shears even though, ideally, there is a different type blade required for every condition.
The three grades of blades offered are:
No. 1 -
Standard Grade for all thicknesses.
No. 2 -
Alloy Grade for plate over 1/4".
No. 3 -
Alloy Grade for plate 1/4"
and under.
The first grade, i.e., the Standard Grade, is recommended for average conditions, the shearing of all thicknesses of
non-ferrous alloys, and mild steels. They are not recommended for high production or continuous shearing or for the
shearing of hi-tensile steels. Hi-tensile steels reduce the life of these blades because of the abrasive action and
toughness of the material and results in frequent resharpening, reducing their hardness. They are generally referred to as
Standard High Carbon Tool Steel Blades or No. 1 grade.
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