Surface Technology
Oberflächentechnik
13
rotate
Connecting the handpiece to the micromotor
First screw the handpiece onto the micromotor by hand!
If you notice any resistance before the thread is screwed on as far as it ought to go, it means
that the drive shaft of the motor and the coupling on the handpiece are not fi tting properly one
inside the other. In this case turn the shaft of the handpiece until the coupling notches into place.
Tighten the handpiece fi rmly with a hook spanner.
Figure 7.3 Schematic drawing
Do not apply any force! This could cause irreparable damage to the motor bearings.
centre
Do not exceed 13 mm overhang for mounted grindstones. In case of overhang must exceed 13
mm reduce the motor speed in accordance with the following table:
Overhang (mm): 20, max. operating speed rpm: N x 0.5
Overhang (mm): 25, max. operating speed rpm: N x 0.3
Overhang (mm): 50, max. operating speed rpm: N x 0.1
