JF 2D - Chopper Knives Sharpening

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7.2- Chopper knives sharpening
This operation is more important on machine
maintenance, because aim at good performance and
durability of the knives (1).
The sharpening should be made in such a way to
preserve the characteristics of the knives and the
tempering of the steel.
Sharpen the knives when you see that the quality of
the particles is decreasing.
a) Loosen the latch (2) and open cover (3) from the
impeller compartment.
b) Remove the countercover (4).
c) Lock the impeller (5) with a wood wedge to avoid that it
turn.
d) Remove bolts (6) and remove the knives (1).
IMPORTANT:
Sharpen always all the knifes!
e) Sharpen each knife with an appropriate emery,
avoiding overheating and variation on wire color. See
table below.
IMPORTANT:
- Don`t cool hot knifes with water. It can cause lashing.
- Do not sharpen the knife chamfered surface, but the
cutting edge only maintain the cutting angle.
1- Hold the knifes (1) on correct position
(inclination), according picture aside, to
maintain the cutting angle.
2- Its necessary to use glasses and gloves
to make the sharpening.
3- If the knives don`t make possible more
sharpening or turning, replace the kit.
Never replace only one of the knifes.
3
4
5
1
2
1
6
OPERATION TECHNICAL MANUAL - MILL JF 2D
English