PAGE 15
TROUBLESHOOTING GLOSSARY
Trouble Shooting Glossary
Rear Seal. This part is stationary during operation and must not move. When installed and lubed properly, seals
mix in cylinder. When installed and lubed improperly, it causes main shafted bearing failure.
Rerun. The reuse of previously frozen product after it has melted to a liquid. Rerun is obtained when emptying a
freezer for periodic cleaning. Use caution when using rerun as it may contain high bacteria or Coli count, which
could contaminate the fresh mix with which it is combined. Freezers should never be started with rerun. If used at
all, it should be blended with fresh mix at a ratio of seven parts new mix with three parts old mix, after initial
freeze-down with fresh mix.
Scraper Blades. The component that scrapes the frozen product from the freezing cylinder surface. Blades must
be sharp, as dull blades will leave product on the freezing cylinder, insulating the mix from the refrigerant.
Spigot Plunger. The mechanism on the front plate through which the product is dispensed.
Starved Cylinder. A starved cylinder is often mistaken for a freeze up or product too thick. A starved cylinder
(starving) is created when a larger percentage of frozen product is dispensed from the freezing cylinder than the
percentage of liquid product entering the freezing cylinder from the mix-pan. There are several causes of starving.
1. Overdrawing: Dispensing more product from the machine than it’s designed to do. This would occur if a ma-
chine were undersized for its application.
2. Inserting the carbtube prior to pouring the initial product into the mix-pan at the start of each day. This forms a
vacuum and traps a large percentage of air in the cylinder; therefore the cylinder will not fill with product.
3. Carbtube not being cleaned, thus allowing product build-up in the carbtube holes. This restricts product from
entering the freezing cylinder.
4. Pouring frozen or semi frozen product into the mix-pan reservoir. This will form a blockage in the carbtube
hole and not allow liquid product to flow into the cylinder.
5. Mix-pan too cold, allowing product to freeze in mix-pan and restricting product flow.
Stator Rod. Acts as a bearing surface. Helps enfold air for overrun. Transmits compression to the rear seal.
Helps mechanical torque system sense torque. Be sure to lubricate.
