15.2. Knife sharpening
Always wear your personal protective clothes and equipment de-
scribed in the chapter “Safety” when handling knifes !
15.2.1 Serrated standard knife: TREIF-order-No.: 43 765
NOTE It is not possible to regrind serrated knives on site as special
sharpening equipment is required for the purpose. Please get in touch
with your dealer or directly with TREIF !
Please send your blunt cut-off knife to the following address with a note
reading “for regrinding”:
TREIF - Maschinenbau GmbH
Südstraße 4
D-57641 Oberlahr / Ww.
TIP We recommend to stock a second cut-off knife for exchange in order
to prevent downtimes of the machine.
15.2.2 Sickle-shaped knife:
15.2.3 Hollow-edged knife:
Special care must be taken when grinding to obtain the crowned blade
contour which is extremely important for good cutting results!
Note: Only sharpen the bevelled side of the blade.
Sharpen the knife edge only in wet state by means of a whetstone.
Subsequently remove the burr on the rear side of the blade with a
polishing disc or a whetstone !
In the event of major damage on the edge, the blade has to be
disassembled (cf. chapter 9.2), and has to be resharpened on the
bevelled side under a full, steady jet of water (cf. sketch).
Subsequently, the burr on the rear side of the blade has to be
removed.
NOTE: The high-quality, hardened knife steel must by no means exceed
100° Celsius during the sharpening process. At higher temperatures the
knife looses hardness, and thus turns blunt faster.
Maintenance
02/2005 123842-GB Page 71
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