Setup & Operation
Blade Height Scale
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HDSdoc021716
Setup & Operation
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 determine 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 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 2-7.
The LT70 sawmills are equipped with two quarter scales: Standard Quarter Scale and
Grade Hardwood Quarter Scale. Both scales are provided with four sets of marks. Each set represents 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 indicator
with the nearest mark on the scale you want to use. Make a trim cut. When you return the carriage for a
second cut, lower the carriage to the next mark on the scale. This mark shows where the blade should be
positioned to cut a certain thickness of lumber, without having to measure on the inch scale.
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 - 0-1
