20
♦ The sealing ring and overpressure plug should be replaced at least every 3
years or sooner if the sealing ring becomes hard, deformed, cracked, worn, or
pitted, or if the canner is difficult to open or close.
CAUTION!
Failure to replace the sealing ring and overpressure plug
could result in bodily injury or property damage. Use only genuine Presto
®
replacement parts.
♦ The exposure of the sealing ring and the overpressure plug to direct high
heat, such as a hot burner or stove-top, will cause these parts to deteriorate
rapidly. If this occurs, replace these parts immediately.
♦ To clean or replace the overpressure plug, push it out of its opening from the
top of the cover.
After cleaning it, or when replacing it, reinsert the plug by pushing its domed
side into the opening from the underside of the cover,
until the bottom edge is fully and evenly seated against
the underside of the cover (Fig. R).
When properly installed, the word TOP will be visible on
the plug when viewed from the outside of the cover.
♦ If the overpressure plug is ever forced out of the cover due to excess pressure
while cooking or canning, it is important to call the Presto Consumer Service
Department at 1 800 877-0441 for assistance in determining why this
happened.
Do not attempt to use the released overpressure plug.
Air Vent/Cover Lock
♦ To remove the air vent/cover lock for occasional cleaning or for replacing the
small gasket, grasp and securely hold the cup portion on the underside of the
cover with your fingers (Fig. S).
With your other hand, turn the pin portion of the air vent/cover lock on the
top side of the cover counterclockwise until the pin is free of the cup portion.
Lift the pin out and remove the cup portion from under the cover.
Carefully pull the small gasket off the threaded shaft on the cup portion.
Wash all parts in warm, soapy water. Use a soft cloth or small nylon brush to
clean the cover hole.
♦ To reassemble the air vent/cover lock, place the small gasket over the
threaded shaft of the cup portion. Reinsert the cup portion by pushing the
threaded shaft through the air vent/cover lock opening from the underside of
the cover (Fig. S).
Fig. R
01785 4033-017A CUL English weighted gauge induction canner.indd 20
01785 4033-017A CUL English weighted gauge induction canner.indd 20
12/13/19 10:34 AM
12/13/19 10:34 AM