16
Controls & Systems
Models 358 & 359
Maintaining Quality
Operation Tips
To achieve the highest quality product, the following
are key operation procedures:
1.
The machine should be primed with 2 gallons
(7.6 liters) of
fresh
mix. Rerun should be added
to the machine only before a rush period. One
part rerun mix should be mixed with two parts
fresh mix. Always skim the foam off the top of
the rerun. In addition, make certain that all
rerun is completely liquid before use; frozen
particles in the mix may plug the feed
assembly. To minimize beating time, start the
machine as close to opening time as possible.
2.
Freeze down will take approximately 7 minutes.
Afterwards, the product should be 20
_
F
(-6.7
_
C)
±
1
_
.
3.
It is possible to “outdraw” this unit. If the unit is
outdrawn, it should be given a chance to
recover, or inferior product will be served.
Outdrawing the unit can starve the cylinder of
mix and can cause mechanical damage.
Always make certain there is mix in the hopper.
4.
If the unit is air cooled, the condenser must be
kept clean. A clogged condenser will result in
excessively long run times. The condenser
should be inspected regularly and brushed
clean when dirty.
5.
Sharp and proper size scraper blades are of
critical importance. If the blades are nicked or
worn, they must be replaced, or poor scraping
and inefficient freezer operation will result.
6.
O-rings and plastic scraper blades should be
replaced every three months. If at any time the
scraper blades are worn to less than 15/16”,
they should be replaced.
