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Flake Ice Machines Drive System
Page E5
V
ertical Score Lines Guide the Ice U
p
ward
Evaporator Barrel and Auger Inspection
Inspect the evaporator for damage around the dispense
opening. If it is cracked or bulged outward, it is
probably due to a bin control failure. Check both bin
controls for proper adjustment and operation before the
machine is put back into service.
Inspect the interior of the evaporator barrel for damage.
The interior of the evaporator should be smooth and
have no scoring or damage due to the auger coming in
contact with the evaporator side. If damage is present,
the evaporator will require replacement. The
evaporator is available as an assembly, which includes
all internal components, or is available as the
evaporator barrel only, which does not include the
internal components.
Clean the auger and inspect for corrosion or wear. If
the auger is corroded or if the flights are worn from
contact with the evaporator walls, it should be replaced.
If the
evaporator
wall is
scored by
the auger
the
evaporator
will need to
be
replaced.
The auger bearing journals can be checked for wear by
using hand pressure to install a new bearing onto the
journals. The bearing should fit tightly around the
journal. If the bearing does not fit tight, the auger is
worn and must be replaced or machined to the proper
size.
Augers used in the 3 inch diameter evaporators should
have a journal diameter between 1.1803 and 1.1809
inches for both the upper and
lower journals.
Augers used in the 2 1/2 inch diameter evaporators
should have an upper journal diameter between .9831
and .9836 inches and the
lower journal diameter between .7492 and .7498 inches.
Lower Bearin
g
Journal
Damaged or worn evaporator components will cause high auger motor amp draw and may
cause the evaporator to lock up.
U
pp
er Bearin
g
Journal