Henny Penny 500 Service Manual page 35

It is spring loaded, and provides a positive latch to hold the lid
closed. This latch, along with the spindle assembly, and lid gasket,
provides a pressure sealed frypot chamber.
It is tightened after the lid is latched, and applies pressure to the top
of the lid. The lid gasket then applies pressure against the frypot
rim. After one pound of internal pressure, the lid liner pushes a
locking pin up into the locking collar, and prevents the spindle from
being turned while the frypot is pressurized.
It is a threaded adjustable collar, used to obtain the proper
tightness between the lid gasket and the frypot rim. It does this by
controlling the number of clockwise rotations of the spindle.
level of steam pressure within the frypot. Excess steam is vented
through the exhaust stack.
the operating valve is clogged, this safety valve releases excess
pressure, keeping the frypot chamber at 14.5 psi. If this occurs,
turn the main power switch to OF'F to release all pressure from the
DO NOT use fryer. Immediately have the fryer serviced, or
serious bums and injures could result.
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