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8 OPERATION - HANDPIECE
8.1 CHANGING THE BITS
• Never change or insert rotating instruments until the micromotor has come to a complete stop.
To change the bits, proceed as follows:
1. Switch off the micromotor before inserting the bit.
2. To be able to remove the bit, turn the handpiece in the
“OPEN”
direction - until the
following markings coincide
3. Remove the bit from the chuck.
4. Now insert the new bit as deeply as possible into the chuck until the end stop can be
felt.
5. To lock the bit firmly in place again, turn the handpiece in the
“LOCK”
direction until
the following markings are aligned. Never loch half-way and always make sure you turn
into the fully locked position as shown.
6. Check that the instrument is firmly in place so that it cannot come loose during treatment.
7. The handpiece with the newly inserted bit is now ready for use.
Figure 10 - Changing bits
• To check the concentricity of the rotating instruments,
we recommend using a cutter check gauge (see accessories).
Safety instructions for the use of rotary instruments
• Do not touch rotating instruments, there is a risk of injury!
• Only use bits up to a maximum diameter of 6 mm.
• Only use bits with a stainless steel shank.
• Disinfectants and cleaning agents with corrosion protection must be used
for instruments that are not protected against corrosion.
• Avoid contact with H2O2 (hydrogen peroxide). Carbide instruments are attacked and damaged.
• Rotating instruments made of hard metal and non-rust-proof instruments can become corroded which is damaging to the
handpiece.
• Clamp bits as deeply as possible .
• Avoid jamming or levering when inserting bits, as this may increase the risk of breakage. Bring the instruments up to speed
before applying them to the skin or nail.
• Excessive contact pressure can cause damage to the skin or nail areas due to overheating.
• Adhering to the speed recommendations of the manufacturer for the respective instruments leads to the best working
results. Exceeding the maximum permissible speed of the instruments (burs and grinders) can damage or destroy the
instruments and/or the handpiece.
OPEN
LOCK
OPEN
LOCK
WRONG
