Scotchman SHEARMASTER 610, Manual

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When using the bar shear on your Scotchman Ironworker, always use the hold-down device. Never put
any part of your body between the hold-down and the material to be sheared. A maximum clearance of
1/8" (3mm) between the hold-down and the material to be sheared is acceptable.
The maximum tonnage available on the bar shear is to the left, or closest to the pivot point. For
applications that do not require the maximum tonnage, move the material to the right, for minimal
distortion of the drop off piece. Do not attempt to shear pieces that are too short for the hold-down to
grip as this will cause the material to "kick-up" and probably result in damage to the machine.
It is also important that the hold-down is correctly adjusted to avoid possible damage to the machine and
injury to the operator. The hold-down is adjustable to cover all thicknesses of material within the rated
capacity of the machine. A shear support table with adjustable guide is fitted to allow the accurate
feeding of material at any angle.
The maximum material that can be sheared is 1 x 12 inch (25 x 305mm),
3/4 x 20" (19 x 508mm) mild steel.
The standard shear blades fitted to the machine comprise of an upper shaped moving blade and a bottom
rectangular fixed blade. The combination of these two blades offers absolute minimum distortion
through all thicknesses of material within the rated capacity of the machine. After a period of time and
subsequent dulling of the blades, the blades can be removed and turned. The lower fixed blade can be
turned offering four cutting edges and the upper moving blade can be turned offering two cutting edges.
Alternatively, the machine can have a pair of ’rectangular blades’ fitted, which offers multi-edged
economy shearing with only a small margin of distortion on wide bars.
After turning or grinding worn blades, they must be refitted and adjusted to clearances listed in this
section. The upper ’moving blade’ is not adjustable and the ’fixed blade’ must be adjusted to suit. The
’fixed blade’ securing and adjusting screws are more accessible when the shear table has been removed.
An even clearance between the ’moving’ and ’fixed blade’ along their entire length
is important and
attention should be given to ensuring that the ’fixed blade’ is in a vertical plane.
REFER TO SECTION 6.2B.
6.1 BAR SHEAR OPERATION
CAUTION: WHEN THE BAR SHEAR STATION IS NOT IN USE, ALWAYS CRANK THE
HOLD-DOWN DEVICE TO ITS DOWN POSITION.
6.0 MACHINE OPERATION