Reece 32

A31

3. PATCH FOLDING CIRCUIT TROUBLESHOOTING CHART

TEST-REMEDY

MACHINE CONDITIONS

SYMPTOM

MAIN SWITCH __Pull to Start @ Set voltmeter to the 50 volt de scale.

Patch folders not

open in front

SELECTOR

Connect the negative probe to ground or 142 and the positive probe to 2V. If a 24 volt de reading is obtained, the Clamp Table Forward switch is good., If not, replace switch.

P&E

...

position ·

@ Set voltmeter to the 150 volt ac scale. Connect one probe to 16V and the other probe to TP32. If the meter reads 115 volts ac, the circuit board components are good. If not, replace circuit board.

Same as above

Same as above

MAIN SWITCH_ Push to Stop ~ Set the meter to the X10 ohms scale. Connect the probes between 16V and TP32. The meter should read approxi- · mately 80 ohms. If it does not, replace the patch folding solenoid.

Same as above

@ Set voltmeter to the so.volt de scale. Conriect the negative prob!! to ground

MAIN SWlTCH __ Pull to Start

Patch folders will not

open when Patch switch (pedal) is

CLAMP TABLE_ • Back

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

P&E

SELECTOR

closed.

® Set voltmeter to the 50 volt de scale. Connect the negative probe to ground or 142 and the positive probe to 1V. If a 24 volt de reading is obtained, the Clutch Dog switch is good.· If not, replace switch. ® Set voltmeter to the 50 volt de scale. Connect the negative probe to ground or

Same as above

Same as above

Same as above, also:

Same as above

MAN FRONT

LOADING

or

142 and the positive probe to 82. If a 24 volt de reading is obtained, the Patch switch (pedal) is good. If not, replace

MAN BACK

.)

switch.

Patch switch

Closed

From the Library of Superior Sewing Machine & Supply LLC