Maintenance and Alignment
Blade Sharpening
Maintenance and Alignment
EGdoc031120
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4.7 Blade Sharpening
The blade teeth should be sharpened as soon as their dullness, measured as
shown in the figure on the right, is 0.10 -0.20 mm (0.0039 - 0.0078").
Use diamond grinding wheels for sharpening the blades. Apply intensive cooling during sharpening
to prevent overheating and structural changes in the cemented carbide tips.
Blades with hard tips (GLOTECH series) must be intensively cooled with water during
sharpening. Failure to do so will result in cracks in the tips.
In Multix type blades the carbide tips should be .4 - .6 mm (0.0157 - 0.0236") wider than the carbides
in the wiper slots. (See the figure below.) If this difference is not kept, it will result in disk overheating and –
in extreme case – in cracks in the blade gullets. The carbide plates in the wiper slots remove sawdust and
splinters from the kerf. They also cause sawdust to be blown away.
When sharpening, maintain the proper tooth geometry as
indicated in the figure below.
4.8 Using the Blades
The surfaces of spacers should be clean and flat against one another. The blade should not rotate
on the shaft during sharpening as it will lead to its damage.
Do not set teeth with cemented carbide tips!
Do not make any modifications to the blade teeth!
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