Ferm BGM1020 Bersetzung Der Originalbetriebsanleitung Seite 5

3. Installation
The grinder must be firmly bolted to a workbench.
The length of the fixing bolts will depend on the
thickness of the workbench. If the workbench is
made of steel, it is advisable to use a wooden
block or plank between the grinder and the bench,
to insulate it and prevent vibration.
Assembly and adjustment of spark guard
bracket and spark guard
Fig. B
The spark guard bracket and spark guard
should only ever be assembled/adjusted
with the grinding wheel stationary, and
the machine disconnected from the
power supply.
• Fix the spark guard bracket (4) with attached
spark guard to the grinding wheel cover, using
the screw provided (A).
• Set the spark guard bracket at the correct
height. The clearance (B) between the wheel
and the spark guard bracket should be 1 to
1.5 mm.
• Next tighten the screw (A) firmly.
• Position the spark guard to give maximum
protection when working.
• Always wear safety glasses.
Fitting and adjusting tool rest
The tool rest should only be adjusted
when the grinding wheel is completely
stationary, and the machine is
disconnected from the power supply (the
wall socket).
• Fit the tool rest as shown in Fig. C.
• Fix it as tightly as possible in position, with a
maximum clearance (C) of 1 to 1.5 mm
between the tool rest and the grinding wheel.
Replacing the grinding wheel
Fig. C
Required tools:
• 19 mm spanner
• 8 mm spanner
• Screwdriver
Only ever replace the grinding wheel
when the motor is at a standstill and the
power is completely disconnected.
• Remove the grinding wheel guards using the
tools listed above. The spindle nut on the
right-hand side has a right-handed thread.
The spindle nut on the left-hand side has a
left-handed thread. Keep this in mind when
you are replacing the grinding wheels.
• Loosen the nut using the correct spanner.
Remove the old wheel from the spindle.
• Clean the flanges. Place one flange (A) back
on the spindle, with the hollow side facing the
grinding wheel. Slide the new wheel onto the
spindle. Place the second flange (A) on the
spindle, again with the hollow side facing the
grinding wheel. Now tighten the nut on the
spindle. Do not overtighten! Now refit the
grinding wheel cover, and again adjust the
tool rest correctly. Run the motor briefly,
without grinding.
4. Operation
Selecting the grinding wheel
Coarse grinding wheels will in general remove
the most material, and fine grinding wheels
are used for finishing. If the surface is uneven,
begin by using a coarse grinding wheel, and
grind the workpiece until it is smooth. Next use
a fine grinding wheel to remove the grooves and
scratching left by the coarse wheel, and finish off
the workpiece.
How to grind
To prevent the grinding surface from blocking
up, avoid holding wood, lead or any other soft
material or metal against the grinding wheel.
To avoid creating grooves, do not press the
workpiece too firmly on the grinding wheel. Use
water to regularly cool the workpiece being
ground. Wood chisels and the like should never
be sharpened 'blue'.
Take care not to lose your grip on the object being
ground, as it may suddenly become jammed
between the tool rest and the grinding wheel. This
can cause the stone to shatter, the motor to seize,
or the workpiece to fly off, all of which can cause
injury and damage.
Whenever the machine has been in use for 30
minutes, it should be switched off. Allow the
machine to cool down to room temperature.
EN
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