Jonsered 6000+ Operator's Manual page 37

To sharpen the saw blade
!
WARNING!
The saw blade has sharp cutting
surfaces. Be careful to avoid injury.
Always wear protective gloves
while handling the saw blade.
Before sharpening can begin, the teeth of thesaw
blade must be set as described on the preceding
pages.
The greater the sharpening accuracy, the better the
saw blade will run smoothly and in a linear manner
through the log while sawing.
Radii
The radii at (A) must be 1-3 mm.
Radii less than 1 mm increase the risk of cracking.
Radii more than 3 mm will impair chip-off.
Angles
The angle of taper must be 10-12° and the side
plate angle (F) varies with different types of wood
as follows:
Hardwood or frozen lumber
Medium hardwood
Softwood
Before sharpening can begin, the teeth of thesaw
blade must be set as described on the preceding
pages.
The breast angle must be 90 °. See the figure to the
right.
Tooth pattern
As the saw blade is sharpened, it is important that
the teeth and the gullet bottom keep their original
form.
For optimum results, use a grinding unit to sharpen
the saw blade. The grinding procedure is described
on next pages.
The grinding unit is factory-preset to the correct
angles and tooth pattern.
MAINTENANCE
11°
15°
19°
A
10-12°
F
90°
English
37