Vollrath F431 - Manual (Page 18)

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As a recommended cleaner and sanitizer for your frozen
dessert machine, STERA-SHEEN has proven to be one
of the best daily maintenance products for:
· CLEANING – Thorough removal of all solids
including butterfat and milk fat.
· MILKSTONE REMOVAL – Complete removal of
milkstone.
· SANITIZING – FDA-approved no rinse sanitizer
for food contact surfaces.
Additional Information
THE USE OF DELIMERS
A delimer is a strong acid that has the ability to dissolve
milkstone. This type of chemical may become necessary
once high levels of milkstone have developed. While these
products are very effective for removing HIGH levels of
milkstone, they are not ideal for two reasons:
1. PRODUCT SAFETY – Strong acids are dangerous
chemicals. Carefully follow safety instructions
provided with delimer products.
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 re-
move 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.
3.4 DISASSEMBLY OF MACHINE PARTS
Before using the machine for the fi rst time, complete
machine disassembly, cleaning and sanitizing procedures
will need to be followed. Routine cleaning intervals and
procedures must comply with the local and state health
codes. Inspection for worn or broken parts should be made
at every disassembly of the machine. All worn or broken
parts should be replaced to ensure safety to both the
operator and the customer and to maintain good machine
performance and a quality product. A normal wear part is
the auger fl ight (see Figure 3-3). Auger fl ights need to be
replaced before the wear line is no longer visible.
To disassemble the machine, refer to the following steps:
A. Disassembly Of Front Door
1. Remove the front door by turning off the circular
knobs and then pulling the front door off the studs.
2. Remove the air bleed valve by unscrewing the
knob while holding the valve stem from behind
(Fig. 3-4). Remove the compression spring and
push air bleed valve through the rear of the front
door.
WARNING
Moving machinery can grab, mangle and dismember.
Place the Main Freezer Power OFF/ON switch in the
OFF position before disassembling for cleaning or
servicing. Placing the Main Freezer Power OFF/ON
switch in the ON position during cleaning or servicing
may result in serious personal injury.
Wear Line

Figure 3-3 Auger Flight Wear