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DUKE Soft Serve Freezer Model 927CMT
40
184617
11 Routine Maintenance
— continued
1. Test the Head Switch.
The head switch feature is designed to
prevent the beater shaft from being acciden-
tally 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:
a. Be sure all switches are in the “OFF”
position.
b. Disconnect the main power supply.
c.
Remove the dispense head and
beater shaft assembly.
d. Connect the main power supply.
e. Turn the selector switch to the
“CLEAN” position.
CAUTION
Moving parts. DO NOT place
hands in the freezing cylinder.
Severe personal injury could
result.
f.
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.
g. 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 H.C. Duke & Son, Inc. or
your local authorized service company for
service.
DO NOT
place the freezer in service
until the problem has been fixed.
MONTHLY
2. Water Condenser.
Check the outlet water temperature of
water-cooled condensers at the floor
drain. Water temperature should be
about 95°F (35ºC) with a 70°F (21ºC)
water inlet temperature.
3. Test MTS Slide Switch.
CAUTION
Make sure system is de-
pressurized before pro-
ceeding.
The MTS slide switch feature is designed
to prevent the MTS 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:
a. Be sure all switches are in the
“OFF” position.
b. Pull down MTS handle to open the
housing.
c. Turn MTS switch to “ON.”
CAUTION
DO NOT place hands near
the MTS rollers. Severe
personal injury could result.