Operation Manual

Dimension BST 768 / SST 768 User Guide
Maintenance 49
Tip Cleaning Assembly (Brush/Flicker Assembly)
(Refer to Figure 16 on page 50).
NOTE
The flicker should be replaced after 500 hours. It is only
necessary to replace the brush after 2000 hours.
1. Completely power down Dimension. See "Powering Off
Dimension" on page 21.
2. Remove the purge container. See “Dimension Front View” on
page 11.
3. Remove the old flicker. - loosen the flicker attachment (rear)
screws and pull up on the flicker.
4. Insert the new flicker and tighten the rear screws while gently
pushing down on the flicker.
NOTE
The bottom of the material tip must hit in the top 75% of the
flicker.
5. Remove the old tip cleaning brush by loosening the two
mounting screws and pulling up on the brush.
6. Install the new tip cleaning brush, but do not tighten the
mounting screws.
7. With a glove on your hand, move the head so that the tips are
above the tip cleaning brush.
8. Adjust the tip cleaning assembly until the brush lightly touches
the bottom of the Model Tip Shroud. Tighten the brush
mounting screws to 12 in-lbs (1.356 Nm) of torque.
NOTE
Ideally, the top of the brush and the top of the flicker should be
the same height. Brush height, however is more important to tip
maintenance than the flicker height.