Training Guide Course No. 196514
Level 2 Maintenance, X-1000 Series Dispensing Systems 2-88 P/N 196515 (Revision A)
Exercise Sheet 2-10-1
Linear Encoder Gap Adjustment
Tools and Materials Needed:
0.9-mm encoder gapping tool (P/N 194983)
3-mm hex key
Loctite thread locker 242
1. Open the dispensing system hatch.
Make sure the yellow beacon light is displayed and all system motion has
stopped before reaching into the dispensing area. If the heaters are hot, use
extreme caution when performing this operation.
2. Manually move the dispensing head to the front left side of the dispensing system.
3. Locate the X-axis encoder on top of the X-beam.
4. Insert the 0.9-mm gapping tool between the X-axis encoder scale and its scanner.
The gapping tool should fit snugly into the space between the scale and the
scanner. If it does not, perform the encoder adjustment procedure outlined in
Exercise Sheet 2-10-2
on
page 2-89.
5. Manually move the dispensing head to the front right side of the dispensing system
and repeat Step 4.
6. Locate the Y-axis encoder underneath the left side Y-rail.
7. Manually move the X-beam to the front of the dispensing system.
8. Insert the gapping tool between the Y-axis encoder scale and its scanner.
The gapping tool should fit snugly into the space between the scale and the
scanner. If it does not, perform the encoder adjustment procedure in this
section.
9. Manually move the X-beam to the rear of the dispensing system and repeat Step 8.
10. Close the dispensing system hatch.
Adjusting the Encoder Scanner to Encoder Scale Gap:
1. If it is not already open, open the dispensing system hatch.
Make sure the yellow beacon light is displayed and all system motion has
stopped before reaching into the dispensing area. If the heaters are still hot, use
extreme caution when performing this operation.
2. Loosen the two 3-mm hex screws on the top of the scanner.
3. Insert the 0.9-mm gapping tool into the space between the scanner and the scale.
4. Move the scanner toward or away from the scale until the gapping tool fits snugly
between them.
If a good fit is not attainable, contact Asymtek Technical Support.
5. Hold the scanner in place and retighten.
6. Close the dispensing system hatch.
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