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English
• Never grind the rear side of a blade. In the case of RESIST/10
TM
blades, the profi le is on the rear side. If you grind away the teeth,
the blade will lose a great deal of its cutting force.
• The top of the knife is subjected to the heaviest loads dur-
ing shredding. Sharpen this as little as possible so that it is not
weakened.
• Every time you grind you remove some material and the blade
will become smaller on the active cutting side. You can continue
to grind until you have reached halfway through the width of the
top of the blade (see picture). Should you continue to grind, you
would compromise the blade life of the cutting side that has not
yet been used. Turn the blades when this happens (See § 11.5.3
Reversing the blades).
• If the top of the blade is rounded-off, (see picture) the shredding
effi ciency will be reduced. In this event, further grinding of the
blade serves no purpose. This is the time to reverse or renew the
blades. (See § 11.5.3 Reversing the blades.)
• After grinding, carefully close the shredding chamber, refi t the
discharge belt conveyor and close the safety guards. (See § APA-P1)
11.5.3 Reversing and renewing the shredding knives
If blades are sharpened at regular intervals, a blade life in excess of 100 hours for each blade
edge can be guaranteed. When one blade edge has reached the end of its service life, simply
reverse the blade, thereby enabling the machine to operate for another 100 hours. If both blade
edges are worn, replace the blade as a set.
11.5.3.1 To reverse a shredding knife, proceed as follows:
Warning:
Wear protective gloves as the knives are razor sharp !
• Remove the key of the machine from the ignition.
• Fold the left and right guards up (see §AP.A-P1).
• Fully remove the conveyor belt (see § AP.A-P2).
• Open the shredding chamber (see § AP.A-P3)
• Each blade is secured with two M10 bolts. Avoid injury to hands and always use two ring
spanners with long handles to unscrew the bolts. (A/F 17)
• Immediately replace any damaged bolts.
• Do not pull away the blades using your hands but use a self-grip wrench.
• It is useful to put a wedge (screwdriver) in-between the blade disks to ensure it is easy to
release them.