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184662
DUKE Model 957R Soft Serve Freezer
WINTER STORAGE
To protect the unit during seasonal shut-
down, it is important that the freezer be
stored in the proper manner. Use the
following procedures.
1.
Disconnect all power to the freezer.
2.
Disassemble and wash all parts that come
in contact with the mix with a warm mild
detergent solution. Rinse in clear water and
dry all parts thoroughly.
3.
Store the loose parts, such as the head
assembly, beater assembly, and pump
parts in a safe, dry place.
4.
Do not lay heavy objects on the plastic or
rubber parts.
5.
Cover the freezer and all loose parts to
protect them from dust or other elements
that could contaminate them while in
storage. Place the freezer in a dry location.
6.
On air cooled freezers, have condenser fins
cleaned by a qualified refrigeration techni-
cian.
7.
On water-cooled freezers, disconnect the
water supply. Use compressed air to blow
out all remaining water in the condenser.
IMPORTANT:
The water valve must be opened in order
to blow out the condenser. Failure to
purge the freezer of water can result in
severe damage to the cooling system.
Call your IDQ authorized service techni-
cian for service.
USE ONLY ORIGINAL OR AUTHORIZED REPLACEMENT PARTS WITH THIS FREEZER.
(See your Illustrated Replacement Parts Manual)
Should you have any questions on items that are not included in this maintenance schedule, or
problems where service assistance is needed, please call H. C. Duke & Son, Inc. Service
Department, for factory service assistance.
Phone:
(309) 755-4553 or (800) 755-4545
Fax:
(309) 755-9858
QUARTERLY
1.
Have a refrigeration technician check the
refrigeration system and make the necessary
adjustments.
SEMIANNUALLY
1.
Have oil changed in the gear reducer by an
authorized service technician.
NOTE
: Under normal conditions, after the
initial change, the oil should be changed
after every 2500 hours of operation or
every six months, whichever occurs first.
ANNUALLY
CAUTION
To avoid electrical shock or contact
with moving parts, make sure all
switches are in the "OFF" position and
that the main power supply is discon-
nected. Some freezers have more
than one disconnect switch.
1.
Call your IDQ authorized service technician to
replace drive belts.
2.
Call your IDQ authorized service technician to
clean the inside of the freezer including base,
side panels, condenser, etc.
3.
Call your IDQ authorized service technician to
check water-cooled condensers and flush
clean to remove scale and deposits if neces-
sary.
11 Routine Maintenance