Changing The Grinding Wheel - Cocraft HB-125 Bedienungsanleitung

Grinding
1. Plug the mains lead into a wall socket.
2. Start the bench grinder using the power switch (10) and let it get up to speed before
beginning to grind.
3. Hold the workpiece in both hands and lay it on the tool rest. Move the workpiece slowly
and steadily towards the grinding wheel. As pressure on the grinding wheel tends to lower
the speed of the grinding wheel, you should occasionally reduce the pressure a little to let
the wheel return to full speed.
4. Keep the workpiece moving slowly from side to side across the whole face of the grinding
wheel to prevent the wheel from wearing unevenly.
5. If the workpiece becomes too hot to handle, dip it in some water or suitable cooling oil.
Resume work when the workpiece has cooled.
6. Turn the bench grinder off by setting the power switch to 0 and then unplug the grinder from
the wall socket.
Warning:
• Small workpieces should be held with pliers or similar.
• Never grind on the sides of the grinding wheel, doing so may cause it to crack.
• As most materials get hot during grinding, you must be very careful with the workpiece.

Changing the grinding wheel

Warning: In order to prevent injury by accidentally starting the bench grinder, the machine must
be turned off and the power plug disconnected from the socket before the grinding wheel is replaced.
Note:
• Do not remove the cardboard discs attached to the sides of the new grinding wheel because
they aid the secure grip of the flange against the grinding wheel.
• Check the new grinding wheel for cracks or other visible damage before fitting. Never use
a damaged grinding wheel.
• Do not tighten the nut too much with a spanner because the grinding wheel may break.
1. Set the power switch to 0 and unplug the grinder from the wall socket before changing
the grinding wheel.
2. Raise the eye shield.
3. Loosen the spark guard screws so the guard can be moved out of the way.
4. Remove the screws holding the shatter guard and tool rest and remove the shatter guard.
5. Hold the grinding wheel still and undo the spindle nut by turning it clockwise with a spanner.
6. Remove the spindle nut, the outer flange washer and the old grinding wheel. The inner flange
washer should be left on the spindle.
7. Fit the new grinding wheel and the outer flange washer onto the spindle. Tighten the spindle
nut anticlockwise, not too tight.
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