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● GE 250 and GE 260: Position the
shredding blades (8) on the underside
of the blade disc (5) and fasten with
nuts (9) and screws (7) (10 Nm).
● Insert the blade disc (5) into the
housing and fasten. (
● Fit the wing blade (6, for GE 250 and
GE 260 only), wing blade (4), clamping
ring (3) and retaining washer (2) and
fasten with screw (1) (50 Nm).
● Fold back the locking device so that the
blade disc can turn freely again.
(
11.4)
● Install the feed chute. (
11.7 Blade maintenance
Risk of injury!
Always wear thick
gloves.
Maintenance interval:
Before each use
● Remove the feed chute. (
● Lock the blade disc. (
● Check the blades for damage (notches
or cracks) and wear; reverse or replace
if necessary.
Wear limits of the blades:
The blades must be reversed or
replaced before the specified wear
limits are reached. VIKING
recommends VIKING specialist
dealers.
44
1 Reversible blades
● On the blades, measure the
distance (A) between the bore and the
edge of the blade at several points.
Minimum distance:
11.4)
A = 6 mm
2 Wing blade
● Measure the blade width (B) at the
upward-pointing curved edge of the
wing blade.
Minimum blade width:
B = 15 mm
3 Wing blade (GE 250, GE 260)
11.2)
● Measure the blade width (C) at the
upward-pointing curved edge of the
wing blade.
Minimum blade width:
C = 19 mm
18
4 Shredding blade (GE 250, GE 260)
● Measure the blade width (D) at the
upward-pointing curved edge of the
shredding blade.
Minimum blade width:
D = 13 mm
11.3)
11.4)
11.8 Reversing the blades
● Remove the blade set. (
● Unscrew screws (1) and remove
together with nuts (2).
● Remove blade (3) upwards.
● Clean the blade disc.
Blunt reversible blades may only be
reversed once. Always reverse
both blades.
11.5)
● Reverse blade (3) and place onto the
blade disc with the sharp edge exposed
and align the bores.
● Insert screws (1) through the bores and
screw on nuts (2). Tighten the nuts (2)
to 10 Nm.
● Install the blade set. (
Sharpening the blades:
Blades which are blunt on both sides must
be sharpened before resuming work.
In order to ensure optimum machine
operation, the blades should only be
sharpened by a technician. VIKING
recommends VIKING specialist dealers.
● Remove the blades for sharpening.
● Cool the blades when sharpening,
e.g. with water. The blade must not be
allowed to display blue colouring, as
this would reduce its cutting quality.
● Sharpen the blade evenly to prevent
vibrations due to imbalance.
● Check blades for damage before
installing: The blades must be replaced
if notches or cracks are visible or if the
blades have reached the wear limits.
● Sharpen blades at a sharpening angle
of 30°.
19
● Sharpen the blades against the cutting
edge.
● After sharpening, remove any
sharpening burr at the cutting edge
using fine sandpaper.
● Observe the tightening torques
contained in the "Reversing the blades"
section when installing the blades.
11.6)
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