E-VAC290&VAC200-I-1017
Printed in USA
©2017
Page 8
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HEPA MAXX Filter Replacement Procedure VAC-290
NOTE: All HEPA MAXX filter machines are equipped with a differential pressure gauge. The gauge measures the
pressure above against the pressure below the filter, thereby measuring the restriction of airflow due to contamination.
HEPA filters should be replaced when the gauge consistently measures 8 inches W.C.
1. Turn the machine on then block the inlet with a flat and rigid material to place the machine under vacuum pressure.
2. Remove the motor deck hardware. Figure 1
3. Turn the machine off and disconnect the power source.
4. Separate the motor deck and HEPA filter housing spacer then disconnect the motor deck ground wire from the
HEPA adapter assembly via the push-on terminal. Figure 2
5. Remove the motor deck and silencer hood together.
6. Remove the lock nuts retaining the HEPA filter brackets. Figure 3
7. Remove the ring-to-tab terminal, HEPA filter brackets and HEPA filter.
8. Center the new filter on the HEPA adapter plate gasket side down. Figure 4
9. Position the provided lengths of self-adhering flat gasket material on the HEPA filter frame (if not already done so)
to cushion the HEPA filter brackets.
10. Replace the HEPA filter brackets and ring-to-tab terminal then thread the locking nuts over the rods and tighten.
Figure 5
CAUTION: Do not over tighten. The effectiveness of the filter may be compromised if its frame is bent.
11. Set the motor deck on the HEPA filter housing spacer.
12. Connect the motor deck ground wire to the HEPA adapter plate assembly via the push-on terminal then seat the
deck on the HEPA filter housing spacer. Figure 7
13. Connect the power source.
14. Turn the machine on then block the inlet with a flat and rigid material to place the machine under vacuum pres
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sure.
15. Secure the motor deck then turn the machine off. Figure 8
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