Pressure Gauge - Henny Penny PFG-691 Technical Manual

2-18. REMOVAL OF SAFETY
VALVE (Continued)

2-19. PRESSURE GAUGE

Calibration Steps
Cleaning Steps
Oct. 2016
Do not use a pipe wrench. Use thread sealant sparingly
2. Use a wrench to loosen the valve from the pipe tee; turn
counterclockwise to remove.
3. Clean the inside of the pipe tee with hot water.
Turn the safety relief valve towards the rear of the fryer
when reinstalling safety relief valve.
4. Immerse the safety relief valve in a soapy water solution
for 24 hours. Use a 1 to 1 dilution rate. The valve cannot
be disassembled. It is factory preset to open at 14-1/2
pounds (999 mbar) of pressure. If it does not open or close,
it must be replaced.
DO NOT DISASSEMBLE OR MODIFY THIS VALVE.
TAMPERING WITH THIS VALVE COULD CAUSE
SERIOUS INJURIES AND WILL VOID AGENCY
APPROVALS AND APPLIANCE WARRANTY.
The pressure gauge can be recalibrated should it be out of
adjustment.
1. Remove the rim and glass.
2. If the indication hand shows a pressure or vacuum reading
when it should stand at "0", turn the recalibrator screw
ADJUSTING
in the same direction in which the indicating hand is to
SCREW
be moved until the hand stands at a proper "0" position.
3. Replace the rim and glass.
1. Remove the gauge and check inside the pipe fittings from
deadweight body. Make certain fittings are clean and open.
2. Clean and reinstall the gauge.
2-19
Model 691