Henny Penny 500 Technical Manual page 79

2-14. PRESSURE
REGULATION/
EXHAUST (Continued)
safety valve
Step 2
305
Removal and Cleaning
of Safety Relief Valve
The safety relief valve should be cleaned once a year.
DO NOT ATTEMPT TO REMOVE VALVE WHILE
FRYER IS OPERATING. SEVERE BURNS OR OTHER
INJURIES COULD RESULT.
1. Open the lid and then remove the deadweight valve cap
and deadweight.
2. Use a wrench to loosen the valve from the pipe elbow, turn
counterclockwise to remove.
3. Clean the inside of the pipe elbow with hot detergent.
4. Immerse the safety relief valve in a soap water solution for
24 hours. Use a 1:1 dilution rate. The valve cannot be
disassembled. It is factory preset to open at 14 1/2 pounds
of pressure. If it does not open or close it must be replaced.
TO AVOID PERSONAL INJURY, DO NOT DISASSEM-
BLE OR MODIFY THIS VALVE. TAMPERING WITH
THIS VALVE WILL VOID AGENCY APPROVALS AND
THE APPLIANCE WARRANTY, AND COULD CAUSE
SERIOUS INJURIES.
Pressure Gauge
The pressure gauge can be recalibrated should it be out of
adjustment.
ADJUSTING
SCREW
Calibration Steps
1. Remove the rim and glass.
2. If the indicating hand shows a pressure or vacuum reading
when it should stand at "0", turn the recalibrator screw in
the same direction in which the indicating hand is to be
moved until the hand stands at proper "0" position.
3. Replace the rim and glass.
Model 500/600
3-33