Granite Ware F0730 Instruction Manual And Users Manual page 6

3. BACK-UP SAFETY VALVES
Two (2) additional safety valves are found on the top of the lid. One black cap
safety valve is set to go off as back-up pressure release if the main pressure
regulator fails or is clogged. The second safety valve is all metal and will exhaust
residual pressure while sounding a whistling alarm.
The valves can be removed for cleaning and inspection by loosening their nut on
the underside of the lid. Turn the nut counterclockwise (left) to loosen and
remove the valves. Be sure to replace the valves and tighten the attachment nut
by turning it clockwise (right) until secure.
4. LID GASKET SEALING RING
The lid gasket is a flexible silicone ring that fits inside the canner cover and forms
a pressure-tight seal between the body of the canner and the cover during use.
Remove the gasket sealing ring before each use and inspect it for signs of wear
and rigidity. The ring should bend easily and be free from holes or tears.
Periodic light oiling with mineral oil will keep the ring flexible. We recommend
replacing the lid sealing ring each canning season.
5. CANNING RACK
The canning rack holds jars off the bottom of the pot. Never place glass jars
directly into the canner without the rack. The rack holds 7 quart jars, 8 pint jars
or 24 half-pint jars. Lower the rack into the canner when ready to process your
food. Fold handles inward so they do not touch the canner lid.
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