Henny Penny PFG-691 Technical Manual page 166

Inspect for Plumbing Leaks in the Filtration System
Objective and Inspection

To identify if any leaks exist with the filtration system during filtration and then also during
cooking. Tip! A good time to inspect the filtration during cooking would be during the lid lock
engagement / disengagement test. Filtration components can be found in the parts section of
the corresponding technical manual. Pay close attention to the size of the filter components. 8-
head fryers prior to 2004 used a 5gpm pump and ½" plumbing (3/8" check valve) whereas 8-
head fryers built after 2004 used 8gpm pumps and ¾" plumbing (3/4" check valve).
C
B
A
Figure 1.
Front view shown
with the left and
right side panels
removed
1219 US 35 West P.O. Box 60 Eaton, OH 45320 (937)456-8400 Fax (937)456-8402 www.hennypenny.com
D
A Suction Side of Pump
B Filter Pump
C Pressure Side of Pump
D Check Valve
Inspection 40 & 41
Test Procedure for plumbing leaks
during filtration
1. Remove the left side panel from the
fryer.
2. Use a flashlight to inspect the fitings
of the filtration plumbing and
between the filter pump and motor
for oil leaks (figures 1&2).
3. Drain about half the vat of oil to the
drain pan.
4. Turn the power switch to the pump
position to pump the oil back up to
the fry pot.
5. While the oil is pumping, use a
flashlight to inspect for oil leaks.
If leaks are detected with plumbing,
6.
disassemble, clean, and reassemble
the fittings using pipe thread sealant
on threaded fittings, or replacing
any worn sleeve fittings on
compression fittings.
7. If leaks are detected between the
filter pump motor and the pump,
replace the seal kit.
Inspection 29
Rev. A