Reece 32

A35

4. AUTOMATIC PATCH LOADING CIRCUIT TROUBLESHOOTING

SYMPTOM

MACHINE CONDITIONS

TEST-REMEDY

@ Set voltmeter to the 50 volt de scale. Connect the negative probe to ground

Patch Loader wi 11 not

MAIN SWITCH __ Pull to Start

start.

_p & E

SELECTOR

CLAMP TABLE_Back

or 142, and the positive probe to 4Y. If a 24 volt de reading is obtained, the Fingers Down Safety switch is good. If not, replace switch.

LOADING

AUTO FRONT

@ Connect the negative probe to ground or 142, and the positive probe to 1Y.

Same as above

Same as above

·If a 24 volt de reading is obtained, the Clutch Dog switch is good. If not, replace switch.

..

@ Connect the negative probe to ground or 142, and the positive probe to 1OZ. If a 24 volt de reading is obtained, the Patch switch (pedal) is good. If not, replace switch. @ Connect the negative probe to ground or 142, and the positive probe to 7Y. If a 24 volt de reading is obtained, the APL Motor (auto) Start switch is good. If not, replace switch. ® Connect the negative probe to ground or 142, and the positive probe to 132. If a 24 volt de reading is obtained, the Loader Motor switch and the Auto Sewing switch are both good. If not, replace faulty switch. (The Auto Sewing switch would most probably be the faulty one. @ Set the voltmeter to the 150 volt ac scale. Connect the probes to 14Y and 10Y. If a reading of 115 volts ac is obtained, the circuit board components are good. If not, replace board. §] Set the meter to the X 10 ohms scale. Connect the probes to 14Y and 1OY. If a reading of approximat~ly 10 ohms is obtained, the Patch Loader Motor is good. If not, replace motor.

Same as above

Same as above

Same as above

Same as above

Same as above

Same- as above

Same as above

Same as above

MAIN SWITCH__ Push to Stop

Same as above

From the Library of Superior Sewing Machine & Supply LLC