TA Operation/Maintenance Instructions Page 16 of 36
For rough ripping of softwoods and green hardwoods.
Large gullet space for chip clearance and rapid cutting
with grain
Ripsawing of both hardwood and softwood and
occasional rough crosscutting. 20
0
tooth angle, 10
0
alternate bevel.
Combination
Rip & Crosscut
General Purpose Blade providing a good finish for both
ripping and crosscutting applications. 10
0
tooth angle, 10
0
alternate bevel.
Accurate sizing and trimming of timber, plywoods and
particle boards, veneers, and soft plastics. 10
0
tooth angle,
triple chip.
Fine trimming and finishing applications for double sided
laminated boards, veneers, and hard plastics. 50 tooth
angle, triple chip.
Courtesy of Atkinson Walker
For maximum efficiency, always use the coarsest blade that produces adequate results.
7.1 Blade Maintenance
A dull, badly set or badly ground blade will cause slow, inefficient cutting. It will also
increase the effort required for feeding and possibly overload the saw motor. It is good
practice to have a second set of sharp blades available for when dull ones are away for
sharpening (for saw sharpening services look under ‘SAW SHARPENING & REPAIRS’ in the
Yellow Pages). Deposits of gum or resin near the saw teeth tend to cause a saw to stall or
the timber to stick. This gum can be best removed with trichlorethylene, kerosene or
turpentine. The most common method for cleaning off resin is to use a brush and scrape.
A wooden scraper will avoid unnecessary scratching of the sawblade surface. Never try to
clean a running blade.
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