Blastrac BS 180, Инструкция по эксплуатации

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BS180 BLADES
BLADE SHARPENING
• Always wear gloves and safety glasses.
• Because blade swivels in the machine, blade needs to be removed from machine before sharpening.
• Grind blade using a 4" diameter disk with 120 or finer grit. Be careful not to catch disk on edge or
corner of blade.
• Pass grinder back and forth along blade edge being careful to hold grinder at proper angle of blade.
Grind until sharp.
• Using a good quality fine tooth hand file, use same procedure as above.
• In use, blades develop a back-bevel (See Figure A). When re-sharpening, blade will not be truly sharp
until all back-bevel is gone.
Note: Thinner blades are easier to sharpen, but they also break easier.
Figure A
• Blades are sharp. Use extreme caution.
• Have plenty of sharp blades on each job so on-the-job blade sharpening is eliminated.
• It is best to resharpen dull blades on proper bench or belt grinder in the shop, so the blades are ready
for the next job.
• SELF SCORING BLADE SHARPENING
• CARBIDE TIPPED BLADE SHARPENING
It is important to keep the “wings” on a self scoring blade sharp (See Figure B). Use a file on the “wing”
edge. Sharpen the flat part of the blade, the same way as described.
To sharpen carbide tipped blades, a wheel to grind carbide is necessary, ie: green wheel or diamond
wheel.
Figure B
Back Bevel
Self Scoring
Wing