Vollrath F431 - Manual (Page 22)

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D. Place the Main Power OFF/ON and Freezing
Cylinder OFF/ON switches in the ON position
then press the CLEAN button (Fig. 3-11).
E. 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 located above the center of
the Drip Tray for leaks coming from the rear of
the Rear Auger Seal.
3. Check inside the cab unit for leaks at hose
connections.
F. Using a sanitized soft bristle brush or equivalent,
dipped in sanitizing solution, clean mix container.
G. After fi ve minutes, open spigot to expel sanitizing
solution. Drain all solution from machine using all
three spigots.
H. When solution has drained, press the CLEAN
button to stop the auger and place the Main Power
OFF/ON and Freezing Cylinder OFF/ON switches
in the OFF position. Allow the machine barrel to
drain completely.
The machine is now sanitized and ready for adding mix.
3.10 INITIAL FREEZE DOWN AND OPERATION
Every Stoelting soft serve machine needs to be set on site.
The following adjustment will provide optimal product
consistency while prolonging product life.
NOTE
The machine is designed for correct operation in
ambient temperatures between 50°F and 110°F.
Temperatures out of that range may cause refrigera-
tion problems and product quality issues.
NOTE
Do the initial adjustment for the left side and right
side separately.
A. ADDING MIX
1. Sanitize immediately before use.
2. Make sure the Freezing Cylinder OFF/ON switch
is in the OFF position.
3. Fill the storage containers in the cab with at least
2.5 gallons of mix.
4. Attach the mix inlet probes to the container and
place the containers in the refrigerated cab.
5. Place the mix pump switch in the ON position
(Fig. 3-12).
6. Place a container under the spigot and open the
spigot to allow the mix to fl ush out about 8 ounces
(0.23 liters) of sanitizing solution and liquid mix.
Close the spigot.
7. Open the air bleed valve on the front door by
pressing and holding (Fig. 3-13). Hold the valve
open until the mix level in the freezing cylinder
is 1/2” from the air bleed valve.
Figure 3-13 Air Bleed Valves
Air Bleed
Valve
Figure 3-12 Refrigerated Cabinet
Mix Pump
Switches
Reed
Switch
Figure 3-11 Clean Control
Clean Switch