Aerotech VascuLathe ACS Series User Manual page 42

Maintenance
Step 15: Press the new seals over the chamfer and into their respective grooves. Be sure to align the seals
such that the open end (when looking at a cross section) is facing away from the collet, as shown in
Figure 4-3. The direction of the seal is extremely important in sealing the piston. Make sure that the
seals sit into their mounting grooves by running a fingernail around the edge. If the seal is tilted or
twisted slightly its function will be severely compromised.
Step 16: Reinstall the springs.
Step 17: Place the collet cover over the piston and reinstall the collet cover retaining ring.
Step 18: Reinstall the collet piston assembly into its housing. There are chamfers to help guide the piston into
place, but use caution not to twist or damage the seals. It is recommended that a small amount of o-
ring lubricant be used.
Step 19: Installation of the collet cover is the reverse of removal. Begin by inserting the four 12 mm long
screws in every other hole and tightening until they bottom out in their respective holes. Then install
the shorter original screws into the remaining holes and tighten in a cross pattern until the collet
cover is seated against the shaft. Install the remaining four original screws. Torque all screws to a
final torque of 1.8 to 2.0 N-m (16 to 18 in-lbs).
Step 20: Apply air pressure to the stage in order to install the collet.
Step 21: Install the new collet as described in
Step 22: Restore the air supply to the original settings and restore power to the stage.
34
VascuLathe
Section 2.5.1. Collet Installation and Removal Procedure
Chapter 4
®
-ACS Hardware Manual
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