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Knowledge Base Article

DWX-4 4-Axis Dental Milling Machine

Title
DWX-42W - Replacing Consumable Parts - Replacing the Collet
Summary
DWX-42W - Replacing Consumable Parts - Replacing the Collet
Details

Replacement time

  • When scratches or rust appears on the tapered portion of the collet
  • If the collet is deformed

Required Tools

To purchase the Nozzle Cleaner, contact your authorized DGSHAPE Corporation dealer or access our website (https://dgastore.rolanddga.com).


Remarks
  • If a large force, such as an overload during milling, is applied to the collet, the collet may have become deformed.
  • To purchase a replacement collet, contact your authorized DGSHAPE Corporation dealer or access our website (https://dgastore.rolanddga.com).
Remove the collet.

Drain the old coolant

  1. Show VPanel.
  1. Select the machine to operate.
  1. Click
The following window is displayed.
  1. Open the front cover.
  2. Remove the workpiece, rotary axis correction jig, and ATC magazine correction jig.
  3. Click [OK]. The following window is displayed automatically.
  1. Press the collet replacement jig against the collet, and then insert the collet tap. Align the hexagonal tip of the collet and the hexagonal portion of the collet replacement jig.
CAUTION Rotate the collet replacement jig with the collet tap inserted. If the collet replacement jig is rotated without the collet tap inserted, the collet may be damaged.
  1. While gently pressing the collet tap up into the hole, rotate the collet replacement jig in the direction indicated in the figure.Rotate the collet replacement jig until the collet naturally comes free.
 

Attach the new collet.

  1. Clean the inside of the spindle (where contact with the collet is made) with the taper cleaner. Rotate the taper cleaner left and right as if you are brushing the inner portion of the spindle.
  1. Apply a thin layer of grease to the tapered part (the slanted part) of the outer diameter of the new collet and the spindle head (in two locations). A thin application is sufficient. Do not apply excessively.
  1. Assemble the collet, collet replacement jig, and collet tap as shown in the figure, and then insert this assembly into the spindle.
  1. While gently pressing the collet tap up into the hole, rotate the collet replacement jig in the direction indicated in the figure to tighten the collet. Keep rotating until the collet replacement jig will not rotate any more.
  1. Attach the collet replacement jig and the collet tap.
  1. Close the front cover.
  2. When the following window is displayed, click [Cancel].
This completes the procedure for replacing the collet.

 

Modified
May 12, 2020