Labconco Purifie Horizontal Clean Benches 32000 Series - Manual (Page 37)

Chapter 6: Maintaining Your XT Clean Bench
Product Service 1-800-522-7658 33
5. Remove the filter by pulling it straight out of the clean bench.
6. Install the new filter(s) by placing the filter(s) back into the clean bench.
Make sure that the HEPA filter(s) is centered side-to-side in the clean bench.
7. Reinstall the secondary HEPA filter gasket, ensuring that the seal is in place
completely around the sides and top of the filter frame(s).
8. Reinstall the Filter Center Strap. Thread screws into holes, but do not tighten.
9. Reinstall the HEPA filter clamps. Tighten the clamp bolt until the filter
gasket is compressed approximately 50% or 1/8 of an inch.
10. Tighten the Filter Center Strap screws. Plug the clean bench back in.
11. Test the filter for leakage as described in IEST recommended practice #IEST-
RP-CC0002.2.
12. Reinstall the diffuser.
13. Establish the average velocity of the filter. It should be 65 ± 10 FPM, with all
values falling within ± 20% of the average.
Motor/Blower Service:
THE MOTOR BEARINGS ARE PERMANENTLY
LUBRICATED AND SEALED. NO FURTHER LUBRICATION
IS NEEDED.
)
Figure 6-4
Filter
Gasket (both
sides and top
of HEPAs)
Filter Clamps
(3 ea top, 3 ea
bottom, & 1
ea sides)
Filter Center
Strap