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Singer 112W140 User Manual

Singer 112W140
13 pages
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Singer 112W140 Specifications

General IconGeneral
TypeIndustrial
Class112W
Model112W140
BrandSinger
ApplicationHeavy-duty sewing
Stitch TypeLockstitch
Motor TypeClutch Motor
Weight34 kg

Summary

Machine Oiling Procedure

Hook Lubrication

Explains how to lubricate the ball bearing hook saddles and felt pads.

Bobbin Winding and Installation

Winding the Bobbin

Provides instructions and diagram for winding thread onto the bobbin using the winder.

Threading Bobbin Cases

Details the correct method for threading the bobbin case with thread.

Upper Threading Procedure

Threading the Outside Needle

Step-by-step instructions for threading the outer needle.

Threading the Inside Needle

Step-by-step instructions for threading the inner needle.

Sewing Operations and Adjustments

Tension Regulation

Explains how to adjust needle and bobbin thread tensions for a perfect stitch.

Safety Clutch and Thread Controller

Thread Controller Adjustment

Details how to adjust the thread controller for optimal thread management.

Needle Bar and Hook Adjustments

Setting the Needle Bar

Guides on correctly setting the needle bar, including cases without markings.

Setting and Timing Sewing Hooks

Explains how to set the sewing hooks close to needles and how to time them correctly.

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