Blast Machine, Classic, 3 cf w/TLR300 FSV
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Knowledge Base
Frequently Asked Questions
How do I service the pop-up valve?
Depressurize the machine to atmosphere (0 psi). Lock out the air supply. Remove the inspection door. With a small pipe wrench, unscrew the vertical nipple holding the pop-up valve. Once the nipple is removed, you can remove both the nipple and pop-up valve through the inspection door. Inspect:
- Sealing o-ring (CC 02013) — replace if cut, flattened, or hardened
- Pop-up seat — should be smooth, free of embedded media
- Pop-up stem — straight, no scoring
If the sealing o-ring needs to be replaced, you can remove it using a flat-head screwdriver or channel-lock pliers.
Reverse the procedure to reinstall items. Ensure that:
- The o-ring is fully seated into the weldment
- The pop-up valve is aligned with the opening on the top of the machine. To do so, with your hand move the pop-up valve up and down a few times and inspect how it seats with the o-ring. It should fully seat without snagging or binding.