SINGER 631 User Manual
Page 50
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TO UJURICATK THH MACHINE (CoiU’fl.)
Tilt machine back and remove thumb nut from screw li, being careful not to lose felt washer, and
remove cover from underside of machine.
Remove .screw C and remove cylinder cover.
Clean hook and gear area, oil each of the places indicated, and occa.sionally apply a small guantily of
lubricant lo teeth of gears as shown.
Replace bottom cover and cylinder cover.
The motor requires no lubrication.
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ELECTRICAL INFORMATION
The SINGER* Electric Motor in the electric ma
chine is furnished for operation on an ailernathrg
or direct current. Orders must state the catalogue
number of the motor, or the voltage, and in the
case of alternating current, the number of cycles.
Before Inserting Electric Plug A, be sure, that
voltage and cycles .stamped on electrical name
plate B arc within range marked on your electric
meter installed by your power company.
Electrical Connections for Madtine. Push 3-pin
terminal plug C on 3-pin terminal block at right of
machine and connect plug A at other end of cord
to electric oullel.
Speed Controller. The speed of machine is regu
lated by amount of pressure on the pedal of the
foot controller D.
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