Duke DQ 957RMT, Operator’S Manual With Illustrated Parts List

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Twin Twist Soft Serve Freezer Model 957RMT
184957 39
12 Routine Maintenance
(continued)
MONTHLY
— continued
A. Testing the Head Switch
5. Turn the selector switch to the
“CLEAN” position.
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.
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,
disconnect the main power supply
and contact your service technican or
the factory. DO NOT place the freezer
in service until the problem has been
fixed.
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 assemblies.
4. Connect the main power supply.
Check the outlet water temperature
of water-cooled condensers at the
floor drain. Ideal water temperatures
should be about 95°F (35°C) with a 70°F
(21.1°C) water inlet temperature.
B. Water Condenser
CAUTION
Moving parts. DO NOT place
hands in the freezing cylinder.
Severe personal injury could
result.
C. Test MTS Cover Switch
The MTS cover switch feature is designed
to prevent the MTS gear motor 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:
CAUTION
Make sure system is
depressurized before
proceeding.
Note: Freezer should be cleaned and
disassembled for this test.
1. Be sure all switches are in the “OFF”
position.
2. Remove the MTS cover to expose
the roller assembly.
3. Turn MTS switch to “ON”.
CAUTION
DO NOT place hands near the
MTS rollers. Severe personal
injury could result.