Section 7
7-1
Models 8752 and 8756 with Horizon® Pump
Operator Checklist
7
Operator Checklist
During Cleaning and Sanitizing
Cleaning and sanitizing schedules are governed by
federal, state, or local regulatory agencies, and must be
followed accordingly. If the machine has a Standby mode,
the Standby mode must not be used in place of proper
cleaning and sanitizing procedures and frequencies set
forth by the ruling health authority. The following check
points should be stressed during the cleaning and
sanitizing operations.
Troubleshooting Bacterial Count
Thoroughly clean and sanitize the machine
regularly, including complete disassembly and
brush-cleaning.
Use all brushes supplied for thorough cleaning.
The brushes are specially designed to reach all
mix passageways.
Use the long (38 in.) white bristle brush to clean
the mix feed tube which extends from the mix
reservoir to the rear of the freezing cylinder.
Use the black bristle brush to thoroughly clean the
rear shell bearing located at the rear of the
freezing cylinder. Use a generous amount of
cleaning solution on the brush.
If local health codes permit the use of rerun, make
sure the mix rerun is stored in a sanitized, covered
stainless-steel container and used the following
day. Do not prime the machine with rerun. When
using rerun, skim off the foam and discard, then
mix the rerun with fresh mix in a ratio of 50:50
during the day's operation.
On a designated day of the week, run the mix as
low as feasible and discard after closing. This will
break the rerun cycle and reduce the possibility of
high bacteria and coliform counts.
Properly prepare the cleaning and sanitizing
solutions. Read and follow label directions
carefully. Too strong of a solution may damage
the parts, and too weak of a solution does not
adequately clean or sanitize. Sanitize the freezing
cylinder for 5 minutes.
The temperature of mix in the mix hopper and
walk-in cooler should be below 40°F (4.4°C).
Regular Maintenance Checks
Replace scraper blades that are bent, damaged,
or worn.
Before installing the beater, make sure the scraper
blades are properly attached over the pins and the
beater assembly is straight.
Check the rear shell bearing for signs of wear
(excessive mix leakage in the drip pan) and make
sure it is properly cleaned.
Using a screwdriver and cloth towel, clean the
rear shell bearing and the female hex drive socket
free of lubricant and mix deposits.
Dispose of O-rings and seals if they are worn,
torn, or fit too loosely. Replace them with new
ones.
Follow all lubricating procedures as outlined in
"Assembly" on page 6-1.
If your machine is air-cooled, check the
condensers for dirt and lint. Dirty condensers will
reduce the efficiency and capacity of the machine.
Condensers should be cleaned monthly with a
soft brush.
Note: For machines equipped with an air filter, it
is necessary to vacuum the filters monthly.
Important! Never use screwdrivers or other metal
probes to clean between the fins.
FOLLOW YOUR LOCAL ELECTRICAL CODES.
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