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B) Gravity Fed Machines
The gravity feed tube consists of two tubes, one
sliding inside of the other, and a center splash guard.
The inner tube blends the flow of air and mix into
the freezing cylinder. Air enters through the top of
the tube, mix through the bottom.
(Refer to figure 9)
Figure 9
The outer tube is actually a regulating valve. Lifting
or closing this outer tube changes the hole opening
size on the inner tube which allows more or less mix
to enter the freezing cylinder. Since the air inlet hole
size does not change, the air inlet is constant.
You can vary the overrun (yield) by allowing more
or less mix to enter the cylinder by changing. You do
this by opening or closing the outer regulator sleeve
setting on the inner feed tube.
The inner splash guard keeps mix from splashing the
underside of the mix tank cover as well as eliminate
clogging of the feed tube.
The draw rate, portion size, and mix viscosity will
determine the final regulating sleeve setting. Our
standard setting is 2 to 3 notches up from the
bottom. Open the outer tube to increase the mix
amount. Close the outer tube to decrease the mix
amount. Adjust for your specific application.
Mix Intake
Max. Fill Level
Air Intake
Maximum
Standard
C) Pump Fed Machines-Operation
The mix injection pump runs whenever the beater drive
motor is turning. To regulate the amount of mix being
injected into the cylinder, pivot the pump suction tube
either to the right (less mix/more air) or to the left (more
mix/ less air). (Refer to figure 10)
Figure 10
The air intake is through the front two holes of the pump
cover. Since the two air inlet holes are fixed, the air
intake is constant. To adjust your overrun (yield) you
must regulate the amount of mix being pumped into the
cylinders. The mix pump suction tube will change the
orifice size on the tube to allow either more or less mix to
be pumped into the cylinder.
You will also have to adjust your pump suction tube
during daily operation to either a larger (Left) or smaller
(Right) orifice setting depending on your draw rate and
product viscosity.
For heavy draw rates and / or thick viscosity mixes, a
setting of center, one, two, or three positions to the left of
center will be necessary in order to operate the machine
properly.
For light draw rates and / or thin viscosity mixes, a
setting of center, one, or two positions to the right of
center will be necessary.
The “Normal” operating position for the suction tubes on
this freezer is either one position to the left, center, or one
position to the right.
271
min
max
