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7700 BLADES
BLADE SHARPENING
Dull blades greatly reduce cutting ability. Re-sharpen or replace as needed. In use, blades develop a
back-bevel (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.
• Always wear gloves and safety glasses.
• 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.
• 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
It is important to keep the “wings” on a self-scoring blade sharp (Figure B). Use a file on the “wing” edge.
Sharpen the flat part of the blade, the same way as described above.
CARBIDE TIPPED BLADE SHARPENING
To sharpen carbide tipped blades, a wheel to grind carbide is necessary, ie: green wheel or diamond
wheel.
Figure A
Back Bevel
CAUTION:
Blades are sharp, use extreme caution.
CAUTION:
Never change cutting head or service blades while machine is running.
WARNING:
Disarm machine when machine is not in use. Remove the cutting head or drop
cutting head to the floor. Failure to do so could cause severe bodily injury.
Figure B
Self-Scoring
Wing
Summary of Contents for All Day Battery Ride-On 7700
Page 1: ......
Page 75: ...Page 75 7700 MACHINE WIRING 7700 AUS MACHINE WIRING ...
Page 76: ...Page 76 7700 BATTERY WIRING ...
Page 77: ...Page 77 7700 SEAT WIRING ...
Page 84: ...Page 84 7700 BATTERY MATERIAL SAFETY DATA ...