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H.C Duke & Son 959R Operator’s Manual With Illustrated Parts List page 116

Twin twist soft serve freezer
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INSTALLATION AND SERVICE MANUAL 959R
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
11
Service Troubleshooting Charts
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
PROBLEM
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Poor or slow
1.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
product
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
recovery.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
2.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
3. Def
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
4.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Compressor
1.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
does not operate
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
or operates
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
improperly.
2.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
3. F
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
4.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Beater motor
1.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
does not
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
operate.
2.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
3.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
4.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
5.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
6. F
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
7.
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
38
PROBABLE CAUSE
Thermostat cut-in point out of adjustment
or malfunctioning.
Defective condenser fan motor. (Air
cooled models only)
ective compressor.
Water flow restriction to freezer or
through condenser. (Water cooled
models only)
Trouble in compressor condensing circuit.
Faulty start capacitor, run capacitor or
relay. (Single phase only)
aulty contactor.
Disconnected or broken wire to switch or
capacitor relay box. (Single phase only).
Head assembly is not installed.
Magnetic head switch defective.
Loose connection in control circuit.
Open starter coil.
Faulty capacitor assembly. (Single phase
only.)
aulty beater motor.
Beater recycle timer faulty.
– continued
REMEDY
1.
Adjust or replace thermostat.
2.
Replace fan motor.
3. S
ee Trouble Shooting
Compressor/Condensing Circuit.
4. R
emove restriction.
1.
See Troubleshooting Chart-
Compressor/Condensing Unit.
2.
Replace start capacitor, run capacitor, or
compressor relay.
3. R
eplace contactor.
4.
Check wiring and connections; repair or
replace wire leads as necessary.
1.
Install head assembly.
2.
Replace magnetic head switch.
3.
Locate and tighten connection.
4.
Replace coil.
5.
Replace capacitor assembly.
6. R
eplace beater motor.
7.
Replace timer.
184981-02

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