Vollrath U421 Water Cooled - Manual (Page 21)

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Figure 16. Auger Flight Wear & Front Auger
Support Bushing Wear
C. The over-run adjustment is preset at the factory. If an
adjustment becomes necessary, refer to Section 4.
3.7 REMOVING MIX FROM THE FREEZER
This cleaning procedure must be followed each time the
freezer is to be shut off for an extended period of time
such as overnight or on non-business days.
A. Place the mix pump in the OFF position.
B. Draw desired frozen mix from freezer. Close spigot.
C. Place CLEAN-OFF-SERVE switch in CLEAN posi-
tion. Allow mix to agitate in freezer barrel until the
mix has become liquid.
D. Place the mix pump in the SERVE position. Open
spigot and pump liquid mix through the freezer. When
empty, place CLEAN-OFF-SERVE switch and the
mix pump switches in the OFF position. Figure 12.
E. Close the spigot and place the mix pump suction
tube into the pail of cold tap water.
F. Open air bleed valve on the front door by pushing
valve in and holding.
G. Place the mix pump switch in the SERVE position.
H. Let the cold water fill freezer to air bleed valve, then
close the valve by pulling out to lock in place.
I. Place the CLEAN-OFF-SERVE switch in the CLEAN
position.
J. Allow water to agitate until the inside surface of front
door has rinsed clean.
K. Open spigot to expel water. When the pail is empty,
place the mix pump switch and CLEAN-OFF-SERVE
switch in the OFF position. Allow freezer barrel to
drain completely.
3.8 CLEANING THE FREEZER
NOTE
The frequency of cleaning the freezer and freezer
parts must comply with local health regulations.
After the mix has been removed from the freezer, the
freezer must be cleaned. To clean the freezer, refer to the
following steps:
A. Close the spigot and fill the barrel with cold tap water.
B. Place the CLEAN-OFF-SERVE switch in the CLEAN
position.
C. Allow the water to agitate for approximately five
minutes.
D. Open the spigot to drain the water. Remember to
place a bucket or container under the spigot to catch
the water. Repeat this process using a total of 2
gallons (7,5 liters) of cold tap water. When the water
has drained, turn the CLEAN-OFF-SERVE switches
to the OFF position. Allow the freezer barrel to drain
completely.
E. Repeat steps A through D using a mild detergent
solution.
F. Repeat steps A through D using 120° to 130°F (49°
to 54°C) hot rinse water.
3.9 DISASSEMBLY OF FREEZER PARTS
WARNING
Moving machinery can grab, mangle and dis-
member. Place the CLEAN-ON-OFF toggle switch
in the OFF position before disassembling for
cleaning or servicing. Placing the CLEAN-ON-OFF
toggle switch in the ON position during cleaning
or servicing may result in serious personal in-
jury.
Inspection for worn or broken parts should be made at
every disassembly of the freezer for cleaning or other
purposes. All worn or broken parts should be replaced to
ensure safety to both the operator and the customer and
to maintain good freezer performance and a quality prod-
uct. Two normal wear areas are the auger flights and front
auger support bushing (Figure 16). Frequency of cleaning
must comply with the local health regulations.
Wear Line
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