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3.14 PREVENTIVE MAINTENANCE
Stoelting recommends that a maintenance schedule be
followed to keep the machine clean and operating properly.
A. DAILY
1.
The exterior should be kept clean at all times to
preserve the luster of the stainless steel. A mild
alkaline cleaner is recommended. Use a soft cloth
or sponge to apply the cleaner.
B. WEEKLY
1.
Check o-rings and rear seal for excessive wear
and replace if necessary.
2.
Remove the drip tray by gently lifting up to
disengage from the support and pulling out. Clean
behind the drip tray and front of the machine with
warm soapy water.
C. QUARTERLY
Air Cooled
The air-cooled condenser is a copper tube and aluminum
fi n type. Condensing is totally dependent upon airfl ow. A
plugged condenser fi lter, condenser, or restrictions in the
louvered panel restrict airfl ow. This lowers the capacity of
the system and damages the compressor.
The condenser must be kept clean of dirt and grease. The
machine must have 3" (7.6 cm) ventilation. Make sure the
machine is not pulling over 100° F (37° C) air from other
equipment in the area.
The condenser and condenser fi lter require periodic clean-
ing. To clean, refer to the following procedures.
If the condenser is not kept clean, refrigeration ef-
fi ciency is lost.
Air Cooled Condenser Cleaning
A.
Slide the condenser fi lter out of the holding
bracket. Visually inspect it for dirt. If the fi lter is
dirty, shake or brush excess dirt off the fi lter and
wash it in warm, soapy water. Once the fi lter is
clean rinse thoroughly in warm, clear water and
shake dry, taking care not to damage the fi lter in
any way.
Operators Manual
#513679
NOTE
Rev.1
C.
Visually inspect the condenser for dirt by shining
a light through the coil from the back (inside) of
the condenser.
D.
If the condenser is dirty, place a wet towel over
the front (outside) of the condenser.
E.
Using a vacuum, carefully clean the condenser
coil from the inside and outside of the machine.
A stiff bristled brush may help in releasing debris
from between the condenser coils.
Water Cooled
The water-cooled condenser is a tube and shell type. The
condenser needs a cool, clean supply of water to properly
cool the machine. Inlet and discharge lines must be 3/8"
I.D. minimum. Make sure the machine is receiving an
unrestricted supply of cold, clean water.
E. SEMI-ANNUALLY
1.
Disconnect the machine from the power source.
2.
Lubricate the condenser fan motor with S.A.E.
20 weight oil. Three to six drops are required.
3.15 EXTENDED STORAGE
Refer to the following steps for storage of the machine
over any long period of shutdown time:
A.
Place the CLEAN-OFF-ON switch in the OFF
(middle) position.
B.
Disconnect (unplug) from the electrical supply
source.
C.
Clean all parts that come in contact with mix
thoroughly with a warm water cleaning solution
Rinse in clean water and dry parts. Do not sanitize.
Do not let the cleaning solution stand in the hop-
per or in the freezing cylinder during the shutdown
period.
D.
Remove, disassemble and clean the front door
and auger parts.
E.
In a water cooled machine, disconnect the water
lines and drain water. With a fl athead screwdriver,
hold the water valve open and use compressed
air to clear the lines of any remaining water.
11
NOTE
SO218B Model Machine
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