Vollrath U421 Water Cooled - Manual (Page 24)

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2. MACHINE DAMAGE – Strong acids will attack
metal and rubber causing premature wear of
parts. The use of a delimer needs to be closely
monitored to avoid damage to machine surfaces
and parts.
With proper daily use of STERA-SHEEN or it’s
equivalent, there is no need for the use of a
DELIMER.
DO NOT USE BLEACH
· BLEACH HAS ABSOLUTELY NO CLEANING
PROPERTIES.
· BLEACH IS CORROSIVE. It can and will
damage components of the machine causing
premature wear and metal corrosion.
GENERAL PURPOSE CLEANERS
General purpose cleaners do not have the ability to
remove milkstone. Milkstone will become a problem
if not remedied with additional products and
procedures.
THE USE OF CHLORINE TEST STRIPS
“Test strips” are used to determine concentrations of
active chlorine in sanitizing solutions. To use the
strips, tear off a small portion and submerge it into
the sanitizing solution. Then, compare the color
change to the color key on the side of the test strip
dispenser to determine the approximate chlorine
concentration.
The ideal concentration of chlorine needs to be 100
ppm (as stated by the FDA).
NOTE
Follow the directions on the container for proper
concentration.
There are two main factors that contribute to falling
chlorine concentrations in a sanitizing solution.
1. PRODUCT USE – As the chlorine in the
solution is being used, chlorine concentrations
fall.
2. TIME – As time passes, small amounts of
chlorine “evaporate” from the solution. (That is
why you can smell it.)
Sanitizing solutions should not be allowed to fall
below 100 ppm chlorine. New solutions should be
mixed once old solutions become ineffective.
A good grade of stainless steel has been used on the
freezer to ease clean-up. To remove spilled or dried mix,
simply wash the exterior in warm, soapy water and wipe
dry. Do not use highly abrasive materials as they will mar
the finish.
A. To clean the freezer parts, disassemble all parts.
(Refer to section 3.9 for the disassembly of freezer
parts.)
B. Place all parts in warm, mild detergent water and
wash thoroughly. Rinse all parts with clean hot water.
NOTE
Take care not to damage parts by dropping or rough
handling.
C. Wash feed tube and freezer barrel with warm deter-
gent water and brushes provided. Rinse with clean,
hot water. Figure 20.
Figure 20. Cleaning Feed Tube