Surface Technology
Oberflächentechnik
!
Surface Technology
Oberflächentechnik
12
Notes on operation
• The recommended air pressure for operation of the hand grinder is 6 bar.
Higher pressure may result in damage to the hand grinder.
• When immobile, the mandrel must be treated particularly carefully. Under no circumstances
must the mandrel be knocked, since the high precision bearings, which are necessary for
operation, will be damaged as a result. Impact stress in the immobile state results in perma
nent deformation of the bearing races.
• Use only light pressure when grinding and milling with the hand grinder.
• Pay attention to the permitted cutting speeds and the tool manufacturer’s prescriptions befo
reusing the tools.
• Check that the tool is seated firmly and securely tighten the collet with the prescribed keys.
• Regularly check the maintenance unit. If condensed water and dirt are present, drain the
condensate and clean the filter (refer to Care/maintenance section).
Wear protective goggles!
Figure 7.5 changing collet
Changing the collets
hand grinders W 45/40, W 45/23 und W 90/23
For all hand-grinders W 45/23 and W 90/23 the hexagon insert must be loosen first like (pic. 5.2/9).
Please fix the mandrel with a lock bolt (5.2/4) and loosen the collet (5.2/4) with the hook wrench.
After loosen the collet it can be replaced by a new one.
