Vollrath U3-02 - Manual (Page 14)

8
Figure 5
Mix Pump Operation
ROLLER
COVER/CLAMP
3-WAY TEE
INLET SIDE
Figure 6
Removing Parts
MIX PILLOW
D. Overpressure Relief: Excess pressure is relieved
backwards through the peristaltic mix pump and out
the pickup side of the mix pump hose. This will
occur only if the pressure switch fails to shut off the
pump motor.
3.4 CLEANING
The mix pump must be cleaned when changing mix or
whenever the freezer is shut off for an extended
period, such as overnight or on nonbusiness days. For
sanitary reasons, mix must not be allowed to remain in
the freezer lines or mix pump when the freezer is not
in operation.
NOTE
To clean the freezer, refer to the freezer owner’s
manual for complete cleaning procedures.
1. Place the CLEAN-OFF-ON switch in the clean
position and agitate 5-10 minutes maximum.
2. Remove suction tube from mix container. Draw off
the mix remaining in freezer barrel.
3. Pump 2 gallons (7.5 liters) of cold potable water thru
freezer until water at spigot is free of mix.
4. Pump 2 gallons (7.5 liters) of 120ºF detergent solution
water thru freezer. The use of soft water is recom-
mended, along with dishwashing detergents such as
“Joy,” “Dawn,” or equivalent.
5. Place mix pump switch in OFF position. Open spigot
to relieve remaining pressure.
6. Place the CLEAN-OFF-ON switch in the OFF posi-
tion.
3.5 DISASSEMBLY AND INSPECTION OF
REMOVABLE PARTS
Inspection of removable parts should be made whenever
maintenance is performed or pump requires disassembly.
WARNING
Hazardous Moving Parts
Revolving pump head can grab, mangle, and cause
serious crushing injury. The Power switch must be
placed in the OFF position for cleaning and power
must be disconnected when disassembling or
servicing.