Operating manual 17.410+411
Pos.: 20
Dateiname
Firma
Datum
Rev
BK-DH 700 x 1000 eng.doc
BRUKS-KLÖCKNER
27.02.09
00
Seite 41 von
61
8.3
Knives
8.3.1 Knife grinding
Always use cut resistant gloves when handling knives.
The knives are manufactured of high grade alloy steel and must always be ground
with adequate coolant. Overheating will cause localised reduced hardness or cracks
and tensions which can cause knife to break.
8.3.1.1 Grinding of knives
The knives should be kept in sets for regrinding. After grinding the knives in a set
should have the same width; this will prevent rotor imbalance.
The knives must be ground to the angles shown in the following tables.
The knives
must
be ground on the surface shown by shading. The shading also indi-
cates maximum extension of grinding permitted.
Concave grinding surfaces must be prevented, use a grinding stone to remove any
burrs.
When the knives have been reduced to the minimum width they must not be used
anymore and have to be replaced by new knives. Replace knives always in sets.
