Setup & Operation
Blade Height Scale
2
2-27
HDSdoc091108
Setup & Operation
indicator, used to read the inch and quarter scales, remains stationary.
Blade Height Indicator
The blade height indicator has two horizontal, red lines on both sides. Readings should be taken
with eyes level with the indicator, when the two red lines are in line. This will allow to avoid the
parallax error (different scale readings depending on the angle of vision).
The Inch Scale
The horizontal red line on the blade height indicator shows how many inches the bottom of the
blade is above the bed of the mill. If you know the height of your blade at each cut, you can deter-
mine the thickness of lumber you are sawing.
Example:
You want to cut 1" (25 mm) random width boards from a log. Position the blade for the
first cut. Move the carriage to an even measurement on the inch scale. Make a trim cut. Return the
carriage for the second cut and lower it 1 1/8" (29 mm) below the original measurement. (The extra
1/8" (3 mm) allows for saw kerf and shrinkage of the lumber.)
The yellow area on the scale identifies where the blade could encounter a side support or log
clamp. Check that these items are below the blade level before sawing
The Quarter Scale
See Table 2-2.
Two quarter scales are provided with four sets of marks. Each set repre-
sents a specific lumber thickness. Saw kerf and shrinkage allowance are included, but
actual board thickness will vary slightly depending on blade thickness and tooth set.
To choose which scale to use, determine what finished thickness you want to end up with. The
Grade Hardwood Quarter Scale provides thicker finished boards usually required by commercial
buyers. The Standard Quarter Scale allows for kerf and shrinkage of finished boards suitable for
most custom applications. Always check with your customer before you saw to determine what
actual finished thickness is required.
To use the quarter scale, look at the blade height indicator.Line up the horizontal red line on the
Standard Quarter Scale
Grade Hardwood Quarter Scale
Scale
Actual Board Thickness
Scale
Actual Board Thickness
4/4
1" (25 mm)
4/4
1 1/8" (29 mm)
5/4
1 1/4" (32 mm)
5/4
1 3/8" (35 mm)
6/4
1 1/2" (38 mm)
6/4
1 5/8" (41 mm)
8/4
2" (51 mm)
8/4
2 1/8" (54 mm)
TABLE 2-2
Summary of Contents for LT40 DH
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