Stoelting U421 Operator's Manual page 16

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Section 2: Operation
F. Sanitizing
Sanitizing must be done after the machine is clean and
just before the machine is fi lled with mix. Sanitizing
the night before does not ensure sanitization the next
day. However, you should always clean the machine
and parts after using it.
The
United
Agriculture and the Food and Drug
Administration require that all cleaning
and sanitizing solutions used with food
processing equipment be certifi ed for this
use
When sanitizing the machine, refer to local sanitary
regulations for applicable codes and recommended
sanitizing products and procedures. The frequency of
sanitizing must comply with local health regulations.
Mix sanitizer in quantities of no less than 2 gallons
of 90°F to 110°F (32°C to 43°C) water. Allow sanitizer
to contact the surfaces to be sanitized for 5 minutes.
Any sanitizer must be used only in accordance with
the manufacturer's instructions and to provide a 100
parts per million strength solution.
F.1
Prepare 2 gallons of
s a n i t i z i n g s o l u t i o n
f o r e a c h f r e e z i n g
cylinder. Following the
sanitizer manufacturer's
instructions for preparing
the sanitizing solution.
Pour the sanitizing
solution into the mix containers.
16
NOTE
States
Department
U421-I2 & U431-I2 OPERATOR'S MANUAL
F.2
Press the Main Power
button. Then press the
Pump buttons to turn the
pumps ON.
F.3
of
Check for leaks when the freezing cylinder is fi rst
pressurized with sanitizing solution.
1. Check for leaks at the front door seals.
2. Check the drain tray located in the side panel for
leaks coming from the rear seal of the auger.
3. Check the inside of the cab unit for leaks at the
hose connections.
F.4
After you hear the pump
shut off, press the air
bleed valves to release
the air pressure. Allow
water to fi ll the freezing
cylinders.
F.5
Press the CLEAN buttons to
start the augers rotating. The
IntelliTec2™ display shows a
5-minute timer.
513725 REV.0

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