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English
B) The issue is to have the chippings leave the shredding chamber as
quickly as possible with regard to the secondary shredding. The chip-
pings, therefore, must be quickly reduced until they are small enough to
pass through the openings of the sieve screen. Every contact with the
cutting area of a blade must make the individual chipping smaller.
The
sharper the full active cutting edge
of the blade, the more effi cient
the shredding will be. Regular grinding of the cutting edge is essential.
The teeth on the cutting edge
ensures that the cutting power
of the blades increases and the cutting edge remains sharp for a
longer period of time. It is very important to never grind away the
teeth when performing maintenance on the blades. (See 11.3.3,
Sharpening the blades.)
The position of the blades on the blade shaft has been selected
very specifi cally to obtain a alternative chopping confi guration with regard to the primary shred-
ding and the correct circulation of the chippings in the shredding chamber with regard to the
secondary shredding. Always observe the original set-up of the blades when reversing or replac-
ing them. (See § 11.5.3.1 in which the rules are explained.)
11.5.2 Sharpening the blades
Correct and timely sharpening of the shredding blades will extend their operating life
(we recommend at least every 10 working hours).
Preparatory warnings
• Always wear safety glasses and hearing protection when grinding knives. Gloves are also man-
datory for performing the maintenance work.
• NEVER turn the blade shaft by grabbing the blades. Use the large pulley as a wheel to turn the rotor.
• The blade has two cutting edges (reversible blade). This means that you must take into account
when sharpening that there is another razor-sharp blade side.
• Remove all wood dust and chipping residue from the shredding chamber and around the blade
shaft. This to ensure fi re cannot occur once glowing sharpening fi llings is deposited.
• Remove the key from the ignition for your own safety.
• Open the left and right guards
(see § APAP1).
• Remove the discharge belt conveyor (see §Fout! Verwijzingsbron niet gevonden.).
• Open the shredding chamber (§ 11.2.4).
For your information:
The blades can be sharpened without having to disas-
semble them. Use a small angle grinder with a grinding
disc suitable for steel.