Singer CLASS 99 instruction manual Class 99 & 99K, To Replace the Bobbin

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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.

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.

When closing the slide, place thread up through slot 3, Fig. 21 as shown.

FIG. 18 Replacing the Bobbin

FIG. 19 Threading the Bobbin Case

FIG. 20 Bobbin Case Threaded

FIG. 21 Under Threading Completed

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Contents Class 99 & 99K Sewing Machines Sewing Suggestions Table of Contents Instructions for Operating the MachineLight Electrical InformationTo Insert New Bulb To Remove BulbIf the Machine is Electrically Operated To Operate the Hand Machine If the Machine is Hand OperatedBelt Shifter If the Machine is Treadle OperatedProtection Against Rust Damage To Oil the Machine and Stand Class 99 & 99K Needles and Thread To Set the Needle Upper Threading To Remove the Bobbin To Wind the Bobbin Class 99 & 99K To Replace the Bobbin Class 99 & 99KTo Prepare for Sewing To Start Sewing To Start SewingBasting To Turn a CornerTo Sew Bias Seams To Remove the WorkTo Reverse the Direction of Feed To Regulate Length of StitchThread Tension To Regulate Pressure on Presser FootTo Regulate Needle Thread Tension To Regulate Needle Thread TensionTo Regulate Bobbin Thread Tension Bobbin Thread Tension Table of Contents Previous Page NextTo Adjust the Bobbin Thread Tension To Adjust the Needle Thread TensionTo Adjust the Tension on the Thread Take-up Spring To Remove the Bobbin Case To Clean the Stitch Forming MechanismRaising the Bobbin Case Latch Removing the Bobbin Case To Replace Bobbin CaseBreaking of Needles Might be Caused by To Replace Slide PlateSewing Suggestions Skipping of Stitches Might be Caused by Breaking of Needle Thread Might be Caused byBreaking of Bobbin Thread Might be Caused by Class 99 & 99K Hemming Foot HemmerApplications Hemmed Seams Lace Applied over Hem Hemming with LaceInserting the Binding BinderAdjustment and Operation Binder Outside Curves Binding Curved EdgesInside Curves Shirring Gathering FootRuffler Adjusting PointsGathering Forming and Attaching a Ruffle in One Operation Group Pleating PleatingSeam Guide Zipper Foot Skirt Zipper Corded Welting Corded Seams Blind Stitcher Fashion AidsButtonholer Bias Gauge Joining Lace and Insertion EDGE-STITCHERTucking French SeamsQuilter Wide Hemming Adjustable HemmerTo make hems from 3/16 to 15/16 inch wide Tucker Darning or Embroidering Needles Darning or Embroidering