DUKE Shake Freezer Model 707PR
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184600
33
MONTHL
MONTHL
MONTHL
MONTHL
MONTHLY
Y
Y
Y
Y
11 Routine Maintenance
— continued
A. Test the Head Switch.
The head switch feature is designed to
prevent the beater shaft from being
accidentally activated. It is essential that
the proper operation of this switch be
verified on a routine basis. Use the
following instructions to test for proper
operation:
1.
Be sure all switches are in the
“OFF” position.
2.
Disconnect the main power supply.
3.
Remove the dispense head and
beater shaft assembly.
4.
Connect the main power supply.
5.
Turn the selector switch to the
“CLEAN” position.
CAUTION
Moving parts. DO NOT place
hands in the freezing cylin-
der. Severe personal injury
could result.
6.
Look inside the freezing cylinder
toward the rear. The drive shaft
coupling should
NOT
be turning.
Turn the switch off and disconnect
the main power supply.
B. Water Condenser.
Check the outlet water temperature of
water-cooled condensers at the floor drain.
Water temperatures should be about
95°F(35°) with a 70°F (21°C) water inlet
temperature.
7.
If the drive shaft coupling is turning, or
you are unable to determine whether
or not the shaft is turning, turn the
switch to the “OFF” position, discon-
nect the main power supply and
contact your Dairy Queen
®
authorized
service technician.
DO NOT
place the
freezer in service until the problem
has been fixed.
MONTHLY