Singer CLASS 99 instruction manual To Replace Bobbin Case, Removing the Bobbin Case

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Class 99 & 99K

Fig. 33 Removing the Bobbin Case

To Replace Bobbin Case

Operator Being at the Front of the Machine.

See that the needle is raised to its highest position and that the latch CC, Fig. 34 is raised from the slot FF, Fig. 34 and moved toward you

Hold the bobbin case between the forefinger and thumb of the left hand, as shown in Fig. 33. Insert the forked end of the bobbin case under the throat plate so that the fork straddles the end of the bobbin case position bracket GG, Fig. 34. Then, with a slight twisting motion of the bobbin case to the left and to the back, lightly press it downward

Hold the bobbin case between the forefinger and the thumb of the left hand as shown in Fig. 33. Tilt the bobbin case to the left and at the same time slightly turn the right or forked end toward you so that it is moved out of engagement with the sewing hook. Then tilt the bobbin case toward the right and remove it.

Fig. 34 Bobbin Case Position Bracket

until the edge of the sewing hook engages in the groove under the rim of the bobbin case.

Having set the bobbin case into the correct position, lock the latch CC, Fig. 34 in the notch FF, Fig. 34 to hold the bobbin case in place.

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Contents Class 99 & 99K Sewing Machines Table of Contents Instructions for Operating the Machine Sewing SuggestionsElectrical Information LightTo Remove Bulb To Insert New BulbIf the Machine is Electrically Operated If the Machine is Hand Operated To Operate the Hand MachineIf the Machine is Treadle Operated Belt ShifterProtection 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 Class 99 & 99K To Replace the BobbinTo Prepare for Sewing To Start Sewing To Start SewingTo Turn a Corner BastingTo Sew Bias Seams To Remove the WorkTo Regulate Length of Stitch To Reverse the Direction of FeedTo Regulate Pressure on Presser Foot Thread TensionTo Regulate Needle Thread Tension To Regulate Needle Thread TensionBobbin Thread Tension Table of Contents Previous Page Next To Regulate Bobbin Thread TensionTo Adjust the Tension on the Thread Take-up Spring To Adjust the Needle Thread TensionTo Adjust the Bobbin Thread Tension To Clean the Stitch Forming Mechanism To Remove the Bobbin CaseRaising the Bobbin Case Latch To Replace Bobbin Case Removing the Bobbin CaseSewing Suggestions To Replace Slide PlateBreaking of Needles Might be Caused by Breaking of Bobbin Thread Might be Caused by Breaking of Needle Thread Might be Caused bySkipping of Stitches Might be Caused by Class 99 & 99K Applications Foot HemmerHemming Hemmed Seams Hemming with Lace Lace Applied over HemBinder Inserting the BindingAdjustment and Operation Binder Inside Curves Binding Curved EdgesOutside Curves Gathering Foot ShirringAdjusting Points RufflerGathering Forming and Attaching a Ruffle in One Operation Pleating Group PleatingSeam Guide Zipper Foot Skirt Zipper Corded Welting Corded Seams Buttonholer Fashion AidsBlind Stitcher Bias Gauge EDGE-STITCHER Joining Lace and InsertionFrench Seams TuckingQuilter To make hems from 3/16 to 15/16 inch wide Adjustable HemmerWide Hemming Tucker Darning or Embroidering Darning or Embroidering Needles