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Blade Care &
Break-In
Blade Care
To prolong blade life, always use a blade with the
proper width, set, type, and pitch for each appli-
cation. Maintain the appropriate feed rate, feed
pressure, and blade speed, and pay attention to
the chip characteristics (Refer to Blade Speed
Chart on Page 21 and Chip Inspection Chart
on Page 22). Keep your blades clean, since dirty
or gummed up blades pass through the cutting
material with much more resistance than clean
blades, causing unnecessary heat.
Blade Break-In
The tips and edges of a new blade are extremely
sharp. Cutting at too fast of a feed rate or too
slow of a blade speed can fracture these tips and
edges, quickly dulling the blade. Properly break-
ing in a blade allows these sharp edges to wear
without fracturing, thus keeping the blade sharp
longer. Below is a typical break in procedure. For
aftermarket blades, refer to the manufacturer's
break-in procedure to keep from voiding the
warranty.
Use the Chip Inspection Chart on Page 22 as
a guide to evaluate the chips and ensure that the
optimal blade speed and feed rate are being used.
To properly break in new blade:
1.
Choose correct speed for blade and material
of operation (refer to Blade Speed Chart on
Page 21).
2.
Reduce feed pressure by half for first 50–100
in
of material cut.
2
3.
To avoid twisting blade when cutting, adjust
feed pressure when total width of blade is in
cut.
-20-
Blade Speed
The Model G0885 is variable-speed. The speed
ranges from 100-260 (FPM). Refer to the chart on
Page 21 for cutting speed recommendations by
material type.
During operation, pay attention to the chips being
produced from the cut and compare them to the
Chip Inspection Chart on Page 22 to properly
set the feed rate.
To change blade speed:
1.
Turn variable-speed dial counter-clockwise to
decrease blade speed.
2.
Turn variable-speed dial clockwise to increase
blade speed.
Figure 19. Location of variable-speed dial.
Model G0885 (Mfd. Since 04/19)
Variable-Speed Dial
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