Symptom • Aerospace stage-3 pocket filter loading
Aerospace stage-3 pocket filter loading
Stage-3 NESHAP pocket filter loading faster than expected. Indicates upstream stage failure, volume increase, or chromate-heavy work.
Stage-3 NESHAP pocket filter loading faster than expected. Indicates upstream stage failure, volume increase, or chromate-heavy work.
Quick answer
Aerospace stage-3 pocket filter loading is a high-severity paint-booth symptom. The most common root causes catalogued for this symptom are 3 distinct mechanisms. A 3-step diagnostic sequence is published below to isolate the cause. This symptom is typically NOT a filter-replacement fix, it routes to WERCS service for booth-side mechanical repair.
Aerospace stage-3 pocket filter loading FAQs
What causes aerospace stage-3 pocket filter loading?
3 catalogued root causes for this symptom: spray_volume_increase: Aerospace primer/topcoat volume increased without filter schedule adjustment. Stage-3 schedule needs to track volume. — chromate_primer_high_solids: Hexavalent-chromium primers are high-solids and load stage-3 faster than other coatings. — stage_1_or_2_failure_upstream: Stage-1 roll or stage-2 MEPT panel has failed; stage-3 is doing the work it should not have to. Replace upstream stages.. The diagnostic sequence below walks through isolating each in order.
Do I need a service tech for aerospace stage-3 pocket filter loading?
Yes — this symptom usually traces to booth mechanicals (burner, fan, VFD, controls). WERCS field service handles diagnosis and repair. The diagnostic sequence below helps you communicate symptoms to the tech before the visit.
Sources
Primary references cited on this page.
- NESHAP 319 / 3-Stage Aerospacehttps://www.fgfinishing.com/neshap-aerospace-3-stage/
- Three-Stage NESHAP Filtrationhttps://www.boothfilterstore.com/three-stage-neshap/
- Controlling Exposure to Hexavalent Chromium in Aerospacehttps://www.osha.gov/sites/default/files/publications/OSHA_FS-3650_Aerospace_Paint.pdf
Related on BoothFilterPro
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