Working Instructions - Scheppach 5903203901 Traduction Des Instructions D'origine

8. Working instructions

Direction of Grinding (Fig. 1, Fig. 2)
It mainly depends on your requirements whether you
want to work with or against the direction of grind-
ing. If you want to quickly remove large quantities of
steel (e.g. from very old, rusty tools) or if you want to
grind coarse tools, such as axes, it is recommended
to work against the direction of grinding. If you want
to grind more precisely, we recommend to work with
the direction of grinding. This applies, for example, to
carving tools and knives. Please note that the grind-
ing process is slowed down if you work with the direc-
tion of rotation.
Please check before each operation whether the sur-
face of the grinding stone is even. To do so, lower the
universal support onto the stone and turn it manually
by 360°.
If required, trim uneven material using the 250 trim-
ming device.
Upon the time of delivery, the TiGer provides of even
surfaces.
Water Reservoir (Fig. 3, Fig. 4 )
Fill the water reservoir with water up to the marking.
The grinding stone becomes saturated with water.
Refill water, if required. Do not grind without water.
Once the grinding process is completed, lower the
water reservoir to prevent the grinding stone from be-
ing in the water for an extended period of time.
Empty the water reservoir regularly. Otherwise, par-
ticles of steel and trimmed stone will accumulate and
compress in the reservoir.
Expert tip: Such precipitations can be avoided if you
place a magnet into the water.
Speed controller (Fig. 5)
The speed of the grindstone and of the leather disc
can be controlled steplessly using the speed control-
ler. The speed depends on the required result. For
grinding, a speed in the lower range is more suitable.
For stripping with the leather disc, a higher speed is
more suitable.
At high speeds, there is a risk of splashing.
Lower the water container when working with the
leather disc at high speeds.
In order to maintain an even grinding speed with a
decreasing grindstone diameter, the speed can be
adjusted steplessly with the speed controller.
Grinding stone ø mm
(inch)
250 (10'') 90-100
230 (9'') 100-110
200 (8'') 110-125
180 (7'') 125-150
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Idle-running speed
grinding stone 1/min
Angle measurer (Fig. 6)
Measure the angle of the grinding bezel by compar-
ing the cutting edge to the notches. Then, you set
the determined angle at the device by changing the
height of the universal support. To do so, perform the
following steps:
First, clamp the tool into the device and insert the de-
vice on the universal support.
Then, hold the angle measurer with the desired angle
at the tool tip. Now, adjust the height of the universal
support in such a manner that the front end of the
angle measurer straightly borders the grinding stone.
Please make sure that the angle measurer is always
in alignment with the tool tip.
Note: The values indicated on the angle measurer
are only standard values. Of course, you can change
these values according to your requirements.
Grinding (Fig. 7)
Since the grindstone rotates only slowly, a movement
can be seen in the lateral direction. This is normal
and does not exert any negative influence on the
grinding result.
Expert tip: New tools still show traces of the produc-
tion process. You can substantially increase the life-
time of your tools if you grind them on both sides of
the cutting edge before the first application. You sim-
ply grind the back side in the free­handed mode on
the vertical of the grinding stone, and the front side
as follows.
After you have set the angle, insert the tool mounted
in the device on the universal support, turn on the
motor, and start the grinding process. Press the tool
evenly onto the grinding stone near the cutting edge,
and move it crosswise across the stone.
Please make sure that at least half the width of the
cutting edge comes into contact with the grinding
stone at any time to avoid damages of the stone.
To achieve finer grinding results, prepare the stone
using the Stone preparer. Thereby you increase the
graining from 250 to approximately 1000. The SP
is available as an accessory from your scheppach
dealer.
The height of the Universal Support can be set ex-
actly with the knurled nut attached to the Universal
Support.
Sharpening (Fig. 8)
Never sharpen against the direction of grinding! Oth-
erwise, the tool will cut into the leather!
Impregnate the leather disc using weak machine oil.
Then apply abrasive paste on the leather disc. Turn
on the device, and distribute the abrasive paste by
pressing the ground tool with circular movements on
the wheel.
These preparations are sufficient for five to ten tools.
Then, you start again with a new layer of machine
oil, followed by new abrasive paste. These measures
increase the lifetime of the leather and the quality of
your tools.