Maintenance & Alignment
Blade Sharpening
5
5-11
EGdoc031621
Maintenance & Alignment
machine operator or bystanders and should be replaced immediately. Do not sharp the anti-kickback fingers!
If they are dulled, replace them with new ones.
DANGER!
Always ensure that there is a sharp point on the
anti-kickback fingers before each use of the edger.
Be sure the anti-kickback fingers are free from obstruction and are in
their downward position. Failure to do so may result in serious injury.
5.9
Blade Sharpening
The blade teeth should be sharpened as soon as their dullness, measured as
shown in the figure on the right, is .10 -.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.
CORRECT
WRONG
WRONG
WRONG
