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6
Hira-To
®
Sharpening System
1. Analyze the shear
A. Check to see if the shear has been sharpened before and that it
has been sharpened properly, whether it is a convexed or beveled
edged shear.
B. Check for knicks visually on the edge. Then slowly close the shear
to feel if there are any knicks along the edge as you close.
C. Check the shear tips to see if they are not closing correctly or to
see if the blades overlap.
D. Visually check the set of the scissor
to see if it is over or under-set.
E. Check the bumper to make sure it is there and not damaged.
F. Check for any damage on the screw or parts of the pivot
assembly.
G. Disassemble the shear and inspect all screws, washers,
nuts, bolts, and bearings, storing all parts in a secure
container. When taking apart scissors with tension
assemblies, be sure to pay close attention to how the
shear came apart so you can reassemble it properly after
sharpening.
H. At this point it is good to clean the pivot holes and check for cracks in the shear and for
pits in the washer seat.
I. Examine the ride line and cutting edge to determine how much work needs to be done on
the inside and how much metal needs to be removed from the edge.
J. Check for any loose or missing finger tangs.
Split Screw
Clicker and Spring
Содержание HIRA-TO
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