Portek ULTRA Mk2, Инструкция по эксплуатации

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To avoid malfunction, damage or injury always use a suitable grinding wheel that is in
good condition. Do not use a grinding wheel that is chipped, cracked, or worn. You can
check if the wheel has cracks not visible to the human eye by hanging it up by the
central hole and tapping it with a non-metal object (ie: screwdriver handle). If it is in
good condition it will produce a metallic sound. A dull sound indicates a crack or break.
Make sure before carrying out any work on the ULTRA Mk2 that the plug is disconnected
from the mains power.
Changing the Grinding Wheel
1. Switch off the machine and unplug from
the main power source.
2. Remove the grinding wheel protective
cover by unscrewing the 3 retaining
bolts with the allen key included.
3. Hold the grinding wheel firmly with one
hand and loosen the fixing nut with the
socket wrench.
4. Remove the old grinding wheel and
replace with a new one. Tighten the
fixing nut but do not over tighten - over tightening may cause the wheel to crack or
break. Only use grinding wheels with an outer diameter of 145mm and inner
diameter of 22mm. The grinding speed of replacement grinding wheel must meet or
exceed the RPM rating of the machine.
5. Remount the grinding wheel protective cover onto the machine. Never operate the
ULTRA Mk2 without the grinding wheel cover in place. Keep away from the wheel
when it is turning, and make sure no one is standing close, in the line of the wheel
rotation trajectory. If the grinding wheel vibrates on start up, turn off the machine
immediately and check that the grinding wheel is mounted securely!
6 Never try to stop the grinding wheel with your hands, even if you are wearing safety
gloves. The grinding wheel will cut through gloves and your hand, causing serious
injury.
Grinding Wheel Replacement
Screws
Screws
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