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EverSewn sparrow 15 Series User Manual

EverSewn sparrow 15 Series
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Repair Manual
sparrow 15 series
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EverSewn sparrow 15 Series Specifications

General IconGeneral
BrandEverSewn
Modelsparrow 15 Series
CategorySewing Machine
LanguageEnglish

Summary

Product Specifications

Sewing Machine Appearance

Identification of Main Parts

External Parts Removal Procedures

Face Plate Removal

Remove the screw (a) and the face plate.

Free Arm Cover Removal

Remove the screw (b) and the free arm cover.

Base Plate Removal

Remove 4 screws (c, d,e,f) after laying down the machine.

Back Cover Removal

Remove face plate, cap, free arm cover, base plate, then 4 screws (g,h,i,j) and loosen screw (k).

Front Cover Removal

Loosen screw (I), remove screw (m), and detach the pattern selector dial and front cover.

Sewing Machine Adjustment Guide

Adjustment Symbol Key

Explanation of symbols used for troubleshooting and adjustment procedures.

Arm Shaft Play Adjustment

Adjusting the play of the arm shaft to ensure smooth operation.

Arm Shaft Worm & Pattern Cam Adjustment

Adjusting the meshing of arm shaft worm and pattern cam for proper movement.

Needle Drop Point Adjustment

Adjusting the needle bar supporter to set the needle position correctly.

Presser Foot Height Adjustment

Setting the correct height of the presser foot using a gauge.

Zigzag Needle Flow Adjustment

Adjusting the needle's horizontal movement for maximum zigzag stitch.

Center Needle Drop Point Adjustment

Ensuring the needle drops in the center of the needle hole for correct stitching.

Zigzag Needle Position Adjustment

Adjusting the needle's left/right position for even zigzag stitching.

Needle Bar Height Adjustment

Setting the correct height of the needle bar using a gauge for proper needle movement.

Automatic Needle Threader Adjustment

Adjusting the threader stopper to ensure the hook enters the needle hole freely.

Needle to Hook Distance Adjustment

Adjusting the distance between the needle and the hook tip for proper timing.

Needle & Hook Timing Adjustment

Adjusting the timing between the needle and hook for correct stitch formation.

Shuttle Driver Shaft Gear Distance

Adjusting the distance between drive gears to prevent shaking.

Shuttle Driver Shaft Gear Play

Adjusting play in gears for proper meshing and timing.

Feed Cam Position Adjustment

Adjusting feed cam position to resolve delivery, stitch, and breakage issues.

Feed Lifting Rock Cam Adjustment

Adjusting feed lifting rock cam for correct feed dog movement.

Feed-Dog Height Adjustment

Setting the correct height of the feed-dog using a gauge.

Feed-Dog Front-to-Back Position

Adjusting feed-dog front-to-back position relative to the needle plate.

Feed-Dog Left-to-Right Position

Adjusting feed-dog left-to-right position relative to the needle plate.

Upper Thread Tension Adjustment

Adjusting upper thread tension using a dial tension gauge.

Lower Thread Tension Adjustment

Adjusting bobbin case tension using a bobbin case tension gauge.

Motor Belt Tension Adjustment

Adjusting motor belt tension using a belt tension gauge.

Reverse Pattern Adjustment

Adjusting settings for reverse patterns that are too close or too open.

Buttonhole Stitch Feeding Adjustment

Adjusting pattern cam contact plate for even forward/backward feeding in buttonholes.

Buttonhole Stitching Troubleshooting

Troubleshooting buttonhole stitching issues by adjusting screws for cloth delivery.

Bobbin Winding Adjustment

Adjusting bobbin winding intensity and shape for proper filling.

Sewing Machine Circuit Diagram

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