Blastrac 1-16DB4-V2, Service Manual, Page: 26 / 62

Pinch Bar Re-positioning:
MUST BE DONE EVERY 10 HOURS OF OPERATION.
(See Figure 7 for item descriptions and locations)
1. Remove Item #1, Retainer/Outer Pinch Bar.
2. Rotate pinch bar, item #5, one notch. If the distance from the pinch bar to the blast
wheel blades is greater than 1/8” rotate the pinch bar another notch. Continue until
distance is no greater than 1/8”.
3. Reinstall Item #3.
Pinch Bar Removal/Installation:
(See Figure 7 for item descriptions and locations)
1. Remove Item #3, Retainer/Outer Pinch Bar.
2. Remove Item #1, Retainer/Pinch Bar Indexer.
3. Remove Item #2, Indexer/Pinch Bar.
4. Insert slide hammer into the threaded hole in the end of the pinch bar, Item #1.
5. Withdraw the pinch bar from the blast head.
6. Blow out pinch bar area with compressed air.
7. Insert new pinch bar and tap into place with hammer.
8. Reinstall Item #2.
9. Reinstall Item #1.
10. Reinstall Item #3.
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The key must be in the off position and all rotating parts must come to a
complete halt before attempting any maintenance procedure. Ensure you
are in the Safety Off Position, as described in page 8.