Pfaff 93 Owner's Manual - Page 24
accumulations
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DR053 lle and swing is loose. Now jincipal oiling ew!ng head. There are two openings in the rim of the stitch width dial, one on the left and the other at the back (see arrows). These openings are the oil holes of the zigzag mechanism. Make sure you put only one drop of oil into the oil hole located on the left of the balance wheel, if there is such an oil hole on your machine. Do not lubricate the bobbin winder. DR557 The raceway in the sewing hook is the most important oiling point. Put one drop of oil into the raceway each day you sew (see picture at top right). From time to time, remove the needle plate and clean the machine feed with a soft brush. Take a toothpick and remove accumulations of packed lint. Take out the babbin case and the bobbin and clean the vicinity of the sewing hook. Before you begin to oil the mechanism under the arm top cover and at the needle-bar end of the machine, remove the dirt and lint which has accumulated on these parts. DR611 25 DR 610