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INTRODUCTION
Models C712/C713
Introduction
1
IMPORTANT! R404A refrigerant used in con-
junction with polyolester oils is extremely moisture absor-
bent. When opening a refrigeration system, the maximum
time the system is open must not exceed 15 minutes.
Cap all open tubing to prevent humid air or water from
being absorbed by the oil.
Main Compressor:
Air-cooled machines: 40 oz. (1,134 g) of R404A.
Water-cooled machines: 38 oz. (1,077 g) of R404A.
Gear Alignment and Rear Shell Bearing
1. Make sure the drive shaft(s) can easily slide in and
out of the female socket on the gear unit(s).
2. If a drive shaft is binding, the gear unit could be out of
alignment (loose). Check the bolts on the gear unit to
make sure they are tight.
3. Inspect the rear shell bearing for tightness. Make
sure the locking tab has been folded over to prevent
the nut from loosening.
Beater Rotation
NOTICE! Beater rotation must be clockwise as
viewed looking into the freezing cylinder.
DANGER! The main power supply(s) to the
machine must be disconnected prior to performing any
repairs. Failure to follow this instruction may result in per
-
sonal injury or death from electrical shock or hazardous
moving parts, as well as poor performance or damage to
the machine.
1. Remove the door assembly, beater, and scraper
blades.
2. Place a magnet over the door switch in the front
panel. This deactivates the safety feature, which
prevents the operation of the machine when the door
is not installed.
3. Place the power switch in the ON position.
4. Press the Wash symbol. This activates the beater
motor only.
5. Look into the freezing cylinder. The drive shaft should
be turning clockwise.
6. Press the Wash symbol again to stop the beater
motor.
To correct rotation on a single-phase machine, exchange
leads inside the beater motor. (Follow the diagram
printed on the motor.)
To correct rotation on a three-phase machine,
interchange any two incoming power supply lines at
freezer main terminal block only.
DANGER! The main power supply(s) to the
machine must be disconnected prior to performing any
repairs. Failure to follow this instruction may result in per
-
sonal injury or death from electrical shock or hazardous
moving parts, as well as poor performance or damage to
the machine.
Pump Motor Rotation (C712 Only)
1. Remove the air/mix pump assembly.
2. Connect power to the freezer and place the power
switch in the ON position.
3. Press the Mix Pump button. This will activate the
pump motor only.
4. Observe the pump ball crank. It should be rotating
counterclockwise.
If rotation is not correct, see the wiring diagram on the
pump motor and re-wire accordingly.
DANGER! The main power supply(s) to the
machine must be disconnected prior to performing any
repairs. Failure to follow this instruction may result in per
-
sonal injury or death from electrical shock or hazardous
moving parts, as well as poor performance or damage to
the machine.
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