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7.6.2. Replacing the Dump Valve Gasket (XFC-K/XFC-A only)
The dump valve is located on the bottom of the filter chamber, just above the collection
bin. This valve prevents dust and debris from flowing out of the collection bin back into
the filter chamber. Use the following procedure to replace the dump valve gasket:
1. Open the toggle fasteners on the collection bin.
2. Remove the collection bin.
3. Remove the old gasket from the dump valve.
4. Install the new gasket.
5. Adjust the counterbalance so that the dump valve remains open from 3/16” to 1/4” (4 mm
to 6 mm) when not under vacuum.
6. Wipe down the gasket and collection bin mating surfaces to ensure a good seal. A good
vacuum seal is important for proper operation.
7. Return the collection bin to the bottom of the filter.
8. Close the toggle fasteners on the collection bin.
Figure 5: Dump Valve
Dump Valve Gasket: XFC-K: ID 23098
XFC-A: ID 99880
