7.6. Replacing the Gaskets (XFC-K/XFC-A only)
The XFC-K and XFC-A safety filters include several gaskets that should be checked
periodically and replaced as needed.
7.6.1. Replacing the Internal Check Valve Gasket (XFC-K/XFC-A only)
The internal check valve is located on the inner opening of the inlet tube. The valve
prevents dust and debris from flowing out of the filter chamber back into the vacuum line.
Use the following procedure to replace the internal check valve gasket:
1. Open the toggle fasteners on the lid of the filter chamber.
2. Remove the lid and the filter cartridge from the filter chamber.
3. Remove the old gasket off of the inlet nozzle.
4. Install the new gasket.
5. Wipe down the gasket and lid mating surfaces to ensure a good seal. A good
vacuum seal is important for proper operation.
6. Return the filter cartridge and lid to their original positions.
7. Close the toggle fasteners on the lid.
Internal check
valve
Figure 4: Internal Check Valve
Spare Parts
Material Check Valve Gasket: 1.5”/2” (40/50mm): ID 85610
2.5” (65mm): ID 17989
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