MEFE—Mitchell Engineering Food Equipment Pty Ltd
23 Storie Street Clontarf QLD 4019 Australia
Page 3
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The CAT 13920 has 3 slots for sharpening,
1. Coarse grinding wheels nearest the main body, this is for forming the 34° angle on badly worn or
damaged blades.
2. Fine grinding wheels in the middle slot, this is for everyday sharpening of most blades
3. The end slot contains a honing, rather than an abrasive wheel, this gives a ne nish to the cung
edge and should be used the most oen.
Sharpening a badly blunt or damaged blade:
1. Plug the unit into a standard socket, there is no switch on the sharpening so the motor will start
straight away.
2. Gently lower the blade into slot 1 near the handle end.
3. Slowly pull the blade back and forth unl a new edge is formed. This could take between 5 and 30
strokes depending on how badly worn the blade is.
4. Move the blade to the middle slot (2) and repeat the sharpening; it should take only 4 or 5 strokes if
the previous operaon was completed correctly.
5. Move the blade to the end slot (3) and repeat the procedure in step 4.
Once the blade has been sharpened, it can be kept sharp by regular use of the honing wheels in slot 3 and
occasional use of the ne wheels in the middle slot.
Overuse of the grinding wheels will cause premature wear on the blade.
It is important not to press too hard; a medium size blade should sharpen under its own weight, where as
a small blade may need extra pressure, and a large blade less.