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Related Manuals for Singer 66 Series
Summary of Contents for Singer 66 Series
- Page 1 SERVICE MANUAL SINGER SEWING MACHINES Classes 66, 99, and 185...
- Page 2 Disassembling Numbered Thread Tension Assembly Turn the thumb nut (B, Fig. 1a) to the left until the numeral “0” on the numbered dial stops opposite the center line between the plus and minus signs. Press in the dial to disengage the pin (C) in the thumb nut from the dial, and remove the thumb nut and dial, stop washer (E), tension spring (F), indicator (G), the two tension discs (L), and the thread take-up spring (N).
- Page 3 Fig. 1c Next, replace the indicator (G) with the large open side facing the end of the stud and so that the plus and minus marks will be at the top with the minus sign to the left. Then insert the tension spring (F) in the indicator with the first (half) coil of the spring straddling the lower half of the stud as shown in Fig.
- Page 4 To Adjust the Thread Take-Up Spring The thread take-up spring (T, Fig. 9) should be set so that when the eye of the needle reaches the goods on the downward stroke of the needle bar, the spring will be through acting and will rest against the stop on the thread take- up spring regulator (U, Fig.
- Page 6 Remove and Replace the Oscillating Hook Slide To remove the oscillating hook slide (B, Fig.2) from the machine, raise the needle to its highest point and draw the slide plate slightly to the left, then lift the right hand end and draw it toward the needle until it is disengaged from the spring (A, Fig.
- Page 7 To Remove the Bobbin Case (Operator being at the front of the machine) Raise the needle to its highest point and remove the oscillating hook slide as instructed above. Insert the nail of the forefinger of the left hand under the latch (C, Fig.
- Page 8 To Replace the Bobbin Case (Operator being at the front of the machine) Hold the bobbin case between the forefinger and thumb of the left hand, as shown in Fig. 4. Insert the forked end of the bobbin case under the throat plate so that the fork straddles the position stud (F, Fig.
- Page 9 To Adjust the Bobbin Case Position Bracket If for any reason it becomes necessary to adjust the bobbin case position bracket to obtain the proper thread space between the bobbin case and the bobbin case bracket, loosen the screw (E, Fig. 3) and move the bracket until there is between .010 to .015 of an inch space at the heel of the bobbin case and the cushion spring, then securely tighten the screw (E, Fig.
- Page 10 To Set the Needle Bar at the Correct Height See that the needle is pushed up into the needle bar as far as it will go. Also see that the timing gauge (H, Fig. 6) is set at the correct height by having the top of the finger of the timing gauge centered on the upper timing mark on the needle bar connecting stud (G, Fig.
- Page 11 To Time the Sewing Hook Remove the oscillating hook slide, presser foot, throat plate, bobbin case, and feed dog. This will give a clear view of the point of the hook and the needle for the purpose of timing. Turn the balance wheel over toward you until the needle bar connecting stud (G, Fig.6) which has upon it two timing marks, moves down to its lowest point.
- Page 13 To Remove the Sewing Hook Remove the oscillating hook slide, presser foot, throat plate, and bobbin case. Turn the machine over on its hinges, take out the screw (N, Fig. 8) and remove the feed dog. Also loosen the set screw (P. Fig. 8) and lift out the bobbin case position bracket (F, Fig.
- Page 14 To Raise and Lower the Feed Dog The feed dog should be set so that when it is raised to its highest point by the feed raising bar, the top of the feed points will be about 3/64 inch above the top surface of the throat plate.
- Page 15 To Adjust the Presser Bar The presser bar should be set so that when the presser bar lifter is raised, there will be a clearance of about 5/16 inch between the presser foot and the throat plate. When the presser bar is lowered, the presser bar will be parallel with the feed dog.
- Page 16 Adjusting End Play in the Horizontal Shaft When turning the balance wheel by hand, it should rotate without the slightest drag and, at the same time, without unnecessary end play. If the clamp stop motion bushing (O10, fig. 10) is set too tightly against the clamp stop motion bushing bearing (Z10, Fig.