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Class 99 & 99K
Sewing Machines
Instruction Manual
Table of Contents | Next Page
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Class 99 & 99K Table of Contents Instructions for Instructions for Operating the Machine Using the Attachments Electrical Information The Foot Hemmer Hemming Remove and Replace Light Bulb Hemmed Seams Operate Electrically Hemming with Lace Operate by Hand Treadle Operation The Binder Protection Against Rust Damage Inserting the Binding To Oil the Machine and Stand Adjustment & Operation of the Binder Needle Size Chart Binding Curved Edges To Set the Needle Upper Threading The Gathering F
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Class 99 & 99K ELECTRICAL INFORMATION The Singer electric motor is located at the back of the machine, and can be supplied for operation on alternating 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 electrical plug, be sure that voltage and number of cycles stamped on motor nameplate are within range marked on electric meter installed by electric power company. Electrical C
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Class 99 & 99K To Remove Bulb Grasp light socket so that thumb extends over switch V. Press shade with thumb at U. to release shade from two catches, and slide it halfway out of shade holder W. Press bulb into socket and at same time, turn bulb over from machine as far as it will go to unlock pin X (see Figs. 3 and 4). Withdraw the bulb. To Insert New Bulb Press bulb into socket and turn it over toward machine until pin X enters notch in socket (see Fig. 3). Return shade to its normal position
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Class 99 & 99K If the Machine is Electrically Operated Raise presser foot Q by means of presser bar lifter R to prevent injury to the foot Q and feed T. Place a piece of material under presser foot and let the foot down upon it. Turn on electric current and, if the combination knee and foot controller is installed as a knee controller, press knee lever to the right. If controller is placed on the floor to be used as a foot controller, press down on pedal of controller. The speed of the machi
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Class 99 & 99K If the Machine is Hand Operated When the machine is uncovered, the hand attachment will be found to be out of working position as shown in Fig. 6. Pull the small spring stud 2, and turn the handle back until leer 1, enters the socket 3. Press back the hinged finger 4, Fig. 7 between the spokes of the wheel. The machine is now ready for working as shown in Fig. 7. NOTE. Before replacing the cover on the machine in its case, the lever should be disengaged and the handle placed i
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Class 99 & 99K If the Machine is Treadle Operated Loosen the hand wheel by turning motion screw L, Fig. 16, over toward you, place both feet upon the treadle and turn the hand wheel over toward you, at the same time allowing the feet to move freely and lightly with the motion of the treadle. Continue to do this until a regular and easy movement is acquired and you are able to work the treadle so that you can re-start the machine with the wheel turning toward you. When familiar with the working
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Class 99 & 99K Protection Against Rust Damage Lint and fluff, if not removed prior to storage will, during humid periods, absorb and hold moisture, and thus accelerate rust damage to highly polished thread handling and other exposed parts. The extend of rust damage would depend upon the length of time the machine remained in idle storage where there is no ventilation. Sudden drops in temperature till cause moisture to form on parts which, if not protected by a film of oil, would rust and damag
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Class 99 & 99K To Oil the Machine and Stand If the machine is used continuously, it should be oiled daily. If moderately used, an occasional oiling is sufficient. Apply one drop of oil at teach of the places indicated by the unlettered arrows in Figs. 9, 10 and 12 and carefully clean the machine to insure smooth and satisfactory performance. Oil holes are provided in the machine for bearings which cannot be directly reached. Remove face plate D, Fig. 9 by taking out screw C and loosening scre
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Class 99 & 99K To oil the parts underneath the bed of the machine, turn the machine back on its hinges and apply oil to the oil holes and bearings indicated in Fig. 12. To oil the stand, apply a drop of oil to the centers upon which the band wheel and treadle work, and to both ends of the pitman rod connecting the treadle with the band wheel. After oiling, run the machine rapidly for a few minutes so that the oil may reach the bearings. Neglect to oil the machine will shorten its life and cause
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Class 99 & 99K Needles and Thread For perfect stitching, thread should be selected according to fabric to be stitched, and needle must be correct size for thread which must pass freely through eye of the needle. Page 11 Table of Contents | Previous Page | Next Page
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Class 99 & 99K To Set the Needle Select the correct needle according to the table on page 11. Be sure that the needle is not blunt or bent. Raise the needle bar to its highest position and loosen thumb screw H, Fig. 13 in needle clamp. Push needle with its flat side toward the right up into needle clamp as far as it will go, then tighten the thumb screw H. A screwdriver slot is provided for stronger clamping of needle, required for attachments driven from needle clamp hub. Page 12 Table of C
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Class 99 & 99K UPPER THREADING See Fig. 14. Place spool of thread on spool pin. Raise take-up lever 5 to its highest point. Lead thread into thread guide 1, down and from right to left between tension discs 2, into the loop of the take-up spring 3, under the slack thread regulator 4 (not through the eye in the thread regulator), up and from right to left through hole in take-up lever 5, down through guide 6 on the face plate, down through the lower wire guide 7, from left to right through the
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Class 99 & 99K To Remove the Bobbin Raise needle to its highest point. Draw slide plate to the left. Press bobbin ejector J, Fig. 15, to raise bobbin for easy removal. Page 14 Table of Contents | Previous Page | Next Page
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Class 99 & 99K To Wind the Bobbin Hold the hand wheel K, Fig. 16, with left hand and with right hand loosen stop motion screw L to disengage stitching mechanism. Place empty bobbin on bobbin winder spindle, see Fig. 16. Turn bobbin until hole in right side engages pin in spindle. Press bobbin winder downward until latch M, Fig. 17, engages. In this position latch will hold bobbin in place. Place spool of thread on spool pin 1. Draw thread through guide 2 on arm of machine. Lead thread from fro
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Class 99 & 99K Fig. 17 shows bobbin winder in position for winding. When sufficient thread has been wound the winder is automatically released. Remove filled bobbin from bobbin winder spindle and re-tighten stop motion screw L, Fig. 16. If thread does not wind evenly on bobbin, loosen screw which holds thread guide 3, Fig. 16. Turn guide to left if bobbin winds high on right. Turn guide to left is bobbin winds high on left. When guide is properly centered, thread will wind evenly across bobbi
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Class 99 & 99K To Replace the Bobbin Hold the bobbin between the thumb and forefinger of the left hand, with the thread leading on top from the right toward the left, as shown in Fig. 18. FIG. 18 Replacing the Bobbin Place bobbin into the bobbin case and draw the thread into the slot 1, Fig. 19 in the bobbin case, as shown. Draw the thread backward between the bobbin case and the tension spring until it reaches the notch 2, Fig. 20, then pull the thread toward the right as shown in Fig. 20.
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Class 99 & 99K To Prepare for Sewing Have the thread take-up lever at its highest position. With the left hand hold the end of the needle thread, leaving it slack from the hand to the needle. Turn the hand wheel over toward you until the needle moves down and up again to its highest point, thus catching the bobbin thread. Draw up the needle thread and the bobbin thread will come up with it through the hole in the throat plate as shown in Fig. 22. Fig. 22 Drawing Up the Under Thread Lay both
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Class 99 & 99K To Start Sewing Be sure to have thread take-up lever 5, Fig. 14 at its highest position. Place the material beneath the presser foot Q, Fig. 23, then turn the had wheel to bring the point of the needle into the material, then lower the presser foot by means of presser bar lifter R and start to sew. Some materials, such as soft finished sheers, nylons, jerseys, tricots and other elastic and sponge textiles, require a slight amount of assistance in feeding during sewing operation
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Class 99 & 99K To Turn a Corner Stop the machine when the needle eye, making its upward stroke, is still in the fabric. Raise the presser foot and turn the work as desired, using the needle as a pivot, then lower the presser foot and resume sewing. Basting The longest stitch, No. 6 on the stitch indicator plate, is satisfactory for basting and is easily removed by clipping every sixth stitch and withdrawing the long continuous thread. Machine basting is firmer, more even and much quicker than h
