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Singer 107G201 User Manual

Singer 107G201
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Singer 107G201 Specifications

General IconGeneral
BrandSinger
Model107G201
CategorySewing Machine
LanguageEnglish

Summary

Machine Descriptions and Specifications

General Machine Specifications

Lists general specifications like needle bar stroke, presser bar lift, and bed dimensions.

Zig-Zag Stitch Mechanism

Explains the eccentric mechanism for zig-zag stitch width adjustment.

Lubrication Guidelines

Recommended Singer Oil

Specifies using Singer Oil "Type B or D" for machine lubrication.

Regular Oiling Importance

Stresses the necessity of regular oiling for proper function and wear prevention.

Setting Up the Machine

Operational Caution

Warns against operation without proper lubrication observed.

Needle Selection and Use

Recommended Needles

Specifies Singer Needles, Catalog 1901, chromium finish.

Needle Size Determination

Advises selecting needle size based on thread fit through the eye.

Thread Guidance

Needle and Thread Size Chart

Provides a chart correlating needle sizes with cotton and silk thread sizes.

Synthetic Thread Caution

Warns to wind synthetic threads with the smallest tension possible.

Bobbin Case Cap Removal

Procedure for Cap Removal

Steps to remove the bobbin case cap by operating the latch.

Winding the Bobbin

Bobbin Winder Setup

Securing the bobbin winder and placing the bobbin on its spindle.

Thread Path for Winding

Guides threading through tension bracket, discs, and to the bobbin.

Threading the Bobbin Case

Bobbin Placement in Case

Holding the bobbin and placing it into the bobbin case with tension spring forward.

Thread Path Through Case

Guiding thread through slots in the bobbin case edge.

Replacing the Bobbin Case

Procedure for Case Replacement

Steps to place the threaded bobbin case onto the center stud and engage the latch.

Setting the Needle

Needle Bar Position for Setting

Turning pulley until needle bar is at its highest point.

Needle Insertion and Tightening

Loosening set screw, inserting needle to stop, and tightening screw.

Upper Threading Procedure

Initial Needle Bar Position

Turning machine pulley until needle bar is at its highest position.

Preparing for Sewing

Catching the Bobbin Thread

Turning pulley to lower and raise needle, then drawing up needle thread to catch bobbin thread.

Regulating Thread Tensions

Tension Adjustment Factors

Tensions depend on material used.

Needle Thread Tension

Regulating needle tension with thumb nut "AB" when presser foot is down.

Bobbin Thread Tension

Adjusting bobbin tension with screw "J" in the bobbin case cap.

Setting Zig-Zag Width (107 G 201/253)

Zig-Zag Width Adjustment

Width can be set while machine is operating using knob "L".

Setting Zig-Zag Width (107 G 203)

Width Regulation Method

Loosen nut "O", shift lever "N" on scale for width regulation.

Setting Needle Vibrating Eccentric (107 G 201/253)

Eccentric Adjustment Purpose

Limits bight to a desired width.

Setting Stitch Length

Stitch Length Adjustment Method

Turn knob "T" at machine pulley for stitch length (forward feed only).

Setting Stitch Length Eccentric

Eccentric Function

Limits stitch length to a certain number of stitches per inch.

Setting Thread Take-Up Spring

Spring Setting for Normal Sewing

Spring set for normal conditions, ensuring free movement and light tension.

Regulating Presser Bar Pressure

Pressure Adjustment Method

Use thumb screw "AC" to increase (clockwise) or decrease (counter-clockwise) pressure.

Optimal Pressure Caution

Pressure should be as light as possible while ensuring proper feeding.

Setting Needle Bar Height & Frame (107 G 201/253)

Setting Needle Bar Height & Frame (107 G 203)

Timing Test Condition

Adjustments tested only when needle bar frame is stationary for straight-away stitching.

Needle Insertion

Insert needle as far as it will go, ensure it is not bent.

Timing the Hook

Hook Driving Pulley Adjustment

Loosen pulley set screws "AR" and turn pulley until needle bar is at lowest position.

Hook Point Alignment

Turn hook until point "AK" is at needle center, 1/16 inch above eye.

Hook Timing Caution

Hook point should pass needle closely but not touch it.

Adjusting Feed Driving Mechanism

Mechanism Adjustment Purpose

To take up lost motion in feed driving and lifting connections.

Adjusting Feed Dog Height

Feed Dog Clearance Caution

Ensure underside of feed dog does not drop low enough to strike the hook.

Replacing Arm Shaft Connection Belt

Timing Verification

Verify hook and needle timing before running belt and commencing sewing.

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