PERIODIC MAINTENANCE
100 Avon Street, P.O. Box 1547
Charlottesville, VA 22902
Tel: 434-295-9126 Tech Support: 800-247-9796 Fax: 888-239-0778
Revision Date: 11/98 Page -
27
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NATIONAL
INCORPORATED
EVERY 300 TO 500 CYCLES:
Change the Vacuum Bags:
Both the blue collection bag and the white filter bag should be changed together. To
ensure proper operation, the bags should be changed when the collection bag has reached 2/3
of its capacity or 300-500 cycles. While the filter bag is removed, inspect the foam filter
sleeve located beneath the filter bag, and clean or replace as necessary.
To Change the Bags:
1.
Remove the head of the vacuum unit by releasing the three restraining clips.
2.
Slide the old collection bag off of the inlet fitting and dispose of properly.
3.
Slide the fresh collection bag’s rubber hole guard over the inlet fitting inside of
the canister.
4.
Expand the bag around the inside of the canister.
5.
Squeeze the ends of the spring clamp securing the filter bag to the inlet cage on
the underside of the vacuum head and slide it off the inlet cage.
6.
Slip the filter bag off of the inlet cage and dispose of properly.
7.
Inspect the foam filter sleeve for tears or holes. Clean or replace as necessary.
8.
Slip a fresh filter bag completely over the foam filter on the inlet cage to the
vacuum motor.
9.
Slip the spring clamp over the inlet cage completely to secure the filter bag in
place.
10.
Place the head of the vacuum back on the canister, aligning the exhaust port on
the head with the inlet of the canister, and secure the three restraining clamps.
EVERY 300 EDGES: (For disposable single flute cutters)
Change the cutter insert:
The cutter body should be removed from the motor, the old inserts discarded or
returned for resharpening, the body cleaned, and a new set of inserts installed. See the
Operation section for details on removing the cutter body and changing the cutter inserts.
