Publication: MAN3002G MAC Equipment, Inc. 11
Refer to Figure 6-2 for replacement of the optional cast aluminum
venturis with carbon steel cup.
Figure 6-2 Replacement of Optional Cast Aluminum Venturi
1. Shut down the system, and lockout-tagout the electrical and
compressed air service.
2. Open the service door.
3. Loosen the clamp around the bag. Remove the bag and cage for
the venturi to be replaced.
4. Unscrew/unbolt the bag cup from the tubesheet. The exact method
of fastening the bag cup to the tubesheet may vary from filter to filter
and may include self tapping screws, bolts, or other fasteners. The
venturi will come off with the bag cup.
5. Before reassembling, clean any residue of sealant from the surface
of the tubesheet and bag cup.
6. To reassemble, follow the above steps in reverse order. Apply a
thin bead of silicone sealant to the bag cup before attaching to
tubesheet.
7. Reinstall cage and clean filter bags as described in section titled
"Installation".
Header Assembly
The header assembly normally does not need maintenance other than
weekly inspection and draining as described above.
In the event that disassembly of the header is required, refer to the figure
in the section titled "Spare Parts" for details of the construction.
BAND CLAMP
FILTER BAG
CAGE
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