D.An alternative method is to clean with a condenser brush and vacuum.

NOTE

If the condenser is not kept clean, loss of refrigeration efficiency will result.

4.5PREVENTATIVEMAINTENANCE

It is recommended that a preventative maintenance schedule be followed to keep the freezer clean and operating properly. The following steps are suggested as a preventative maintenance guide.

WARNING

High voltage will shock, burn or cause death. Turn off and lock out main power disconnect before servicing. Do not operate machine with cabinet panels re- moved.

The United States Department of Agriculture and the Food and Drug Administration require that lubricants used in food zones be certified for this use. Use lubricants only in accordance with the manufacturer's instructions.

A.Daily Checks

Check for any unusual noise or condition and repair immediately.

B.Month Checks

WARNING

Moving belts and pulleys can crush and dismember. Do not operate machine with cabinet panels re- moved.

1.Check drive belts for wear and tighten belts if necessary. (Refer to Section 4.3)

2.Check the condenser for dirt. (Refer to Section 4.4)

WARNING

Hazardous Voltage

Disconnect all electric power before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

4.6EXTENDEDSTORAGE

Refer to the following steps for winterizing the freezer or for storing the freezer over any long period of shutdown time.

A.Clean thoroughly with warm detergent all parts that come in contact with mix. Rinse in clear water and dry all parts. Do not sanitize.

NOTE

Do not let cleaning solution stand in freezer barrel, hopper pan, or mix pump during the shutdown pe- riod.

B.Remove, disassembly, and clean the front door, auger shaft, and mix pump. Leave disassembled during the shutdown period.

C.Place plastic auger flights in a plastic bag with a moist paper towel. This will prevent flights from becoming brittle if exposed to dry air over an extedned period of time (over 30 days).

CAUTION

Hearing Protection Required!

This procedure emits a loud noise. Wear proper hearing protection. Failure to wear proper hearing protection may result in permanent hearing loss.

D.For water-cooled freezers that are left in unheated buildings, or buildings subject to freezing, the water must be shut off and disconnected. Disconnect fittings at water valve inlet and water outlet lines at frame. The fittings are located at the rear of the freezer. Run the compressor for 2 - 3 minutes to open water valve. Blow out all water, first through water inlet, then through water outlet lines with air or carbon dioxide. Also drain water supply line to the freezer.

E.Place the mix pump ON-OFF switch, and the POWER switch in the OFF position.

F.Disconnect from the source of input of electrical supply in the building.

4.7TROUBLESHOOTING

The Troubleshooting Table lists the common problems that can occur to the freezer.

20