Filter
Top Products
For Machines Mfg. Since 8/09 Model SB1020
-25-
OPERATION
Blade Care & Break-In
Blade Care
To prolong blade life, always use a blade with
the proper width, set, type, and pitch for each
application. Maintain the appropriate feed rate,
feed pressure, and blade speed and pay attention
to the chip characteristics (Refer to the Chip
Inspection Chart on Page 26). 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
breaking-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 26 as
a guide to evaluate the chips and ensure that the
optimal blade speed and feed rate are being used.
To properly break-in a new blade:
1. Choose the correct speed for the blade and
material of the operation.
2. Reduce the feed pressure by half for the first
50–100 in
2
of material cut.
3. To avoid twisting the blade when cutting,
adjust the feed pressure when the total
width of the blade is in the cut.
Start and stop downfeed with the downfeed knob.
The downfeed rate is adjusted by turning the
downfeed rate adjust knob (Figure 24). Turning
the knob clockwise decreases the downfeed rate
and turning the knob counterclockwise increases
the downfeed rate.
Downfeed Rate
Figure 24. Downfeed pressure adjustment.
Downfeed Rate
Adjust Knob
Downfeed
Knob
The downfeed pressure is controlled by the
spring shown in Figure 25.
To decrease downfeed pressure, turn the cap
screw clockwise to increase spring tension.
To increase downfeed pressure, turn the cap
screw counterclockwise to release spring tension.
Downfeed Pressure
Figure 25. Downfeed rate adjustment.
Spring
Cap
Screw