29 CLEANING / PREVENTIVE MAINTENANCE
User’s manual
Planmeca Chairside CAD/CAM solution 155
10.Use a DRY paper towel to wipe the inside of the collet
shaft.
To keep your milling unit running smoothly it is very
important to clean the collets and spindles. Dirt will cause
the tools to “walk” (not be seated properly) and can cause
broken tools.
These images shown the difference before and after five-
minute cleaning.
Make sure to clean the tapered surface inside the shaft
and the front face. The tapered surface is critical.
Clean both outside and inside of collets. Dirt on the
outside (as shown on right) can also cause the tools to
“walk” if the collet cannot clamp properly.
11.Insert the collet into the spindle.
12.Use the wrench to hold the spindle housing in place and
use the collet tool to tighten the collet. Be sure to use your
fingertips to turn the tool to avoid using too much torque.
13.Insert the Nozzle Cleaning Brush in the small holes on the
spindle cap at an angle. This will push any ceramic build-
up out of the hole.
14.Clean the cap with water.
15.Wipe the red O-Rings with a damp paper towel to remove
any residue.
16.Replace the spindle cap. Note the L or an R on the
spindle caps to denote on which side of the mill it belongs.
NOTE
The alignment grooves on the spindle cap and spindle
housing and the pointed extension on the spindle cap. Use
these for proper alignment.
17.To attach the spindle cap, align the grooves so that the
spindle cap extension is pointing upwards.
18.Then turn the spindle cap clockwise until the extension
points downward and the cap groove aligns with the
housing groove.
19.Close lid when finished.
The tools remain in the tool changer until the next
restoration is selected to mill.
