3
To install eccentric bearing assembly onto shaft, make sure the large thin
washer is first inserted over shaft. Screw eccentric bearing assembly onto
shaft and tighten with appropriate wrench. Lubricate bearing with a good
grade of bearing grease.
To install cutter blades into shear housing, place the side knife and side
spacer into position in the shear housing. Insert center cap screw through
side knife and side spacer with rear spacer bushing between them. Start cap
screw into thread just enough to hold blades in place. DO NOT TIGHTEN.
Insert spacer bushing into hole in center blade and lubricate. Install center
blade into shear housing by tapping blade gently forward using a drift to line
up hole in center blade with forward holes in housing. Insert and tighten for-
ward cap screw making sure spacer bushing in center blade stays in posi-
tion. Apply good grade of bearing grease to clevis or yoke in center blade
where it rides on the eccentric bearing assembly. Insert rear cap screw into
shear housing but do not competely tighten.
To install shear head assembly onto drive motor, make sure all cap screws
are loosened about 3 or 4 complete turns. Place shear head onto unit and
alternately tighten cap screws snugly to lock head assembly in place. It may
be necessary to gently tap the shear head into place if it does not readily slip
onto the nose of the power unit.
Operation
For accurate work, always clamp or anchor the material to be cut. Line up one
edge of the tool’s middle blade with the cutting line and advance blades into
the material without forced effort or unnecessary pressure. A little practice
will enable you to determine what forward pressure gives you the smoothest
cutting. It is important to keep the lower surfaces of the side blades flat on the
material being cut (Figure 4). When cutting curves, do not tilt the tool; keep
the side blades flat and level. For best cutting efficiency, keep blades sharp.
Wear gloves when handling sheet metal. The edges are sharp and can cause
injury.
CAUTION: Do not use the shear with any kind of accessory or
attachment. Such usage might be hazardous.
Adjustment (Figure 5)
To adjust the curl of waste material, the left side knife has elongated holes.
Adjustment may be necessary after changing blades or material being cut.
Loosen cap screws and tap side knife either forward or backward so that curl
of waste does not hit shear housing or work material while cutting.
Figure 4
Figure 5
LOWER SURFACE
OF SIDE BLADES
BLADE
OPENING
SHEET METAL
ALTERNATELY TIGHTEN
TO SECURE
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