Kenmore 12493 Owner's Manual page 61

PRESSER
FEET
To change the various presser feet, raise
the presser bar to its highest position by
lifting the presser foot lever. Loosen the
presser foot thumb screw, choose the
proper foot, insert from the bottom.
Tighten the screw using the large screw
driver to make certain the foot is secure.
SPEED CONTROL PLUG
Push the speed control plug onto three
prong connector.
Plug machine cord into any 110 _ 120
volt wall outlet.
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