Singer 14T967DC QuantumLock Operation instructions

14T967DC

Overlock Workbook



Congratulations on the purchase of your new SINGER®

Quantumlock® Overlock Machine! The Quantumlock®

14967DC is a time saving innovation that provides

professional seams, seam finishes, and creative stitch

capabilities. Sew one-of-kind projects with the special

effects of decorative stitching, such as Flatlocking,

Chainstitching and Rolled Hemming. The overlock works

side by side with your conventional sewing machine

and adds new creative possibilities to your sewing projects.

≈

This workbook has been created as a tool for learning

the various stitch types, which you can then apply to your

projects. The workbook is divided into fourteen individual

sections, and each section focuses on a particular stitch

type. Each section has comprehensive machine set-up

and threading directions, photos and definitions on how

and where the stitch can be used, and suggestions for

successful stitch formation. It is a good starting point to

fully understanding your Quantumlock® overlock.

≈

We are certain that your creativity will be inspired, and

that you will have many hours of sewing enjoyment with

this easy-to-use machine, feature-packed machine!

Enjoy!

The SINGER®Education Department

Singer® and Quantumlock® are registered trademarks of the Singer Company Ltd. or its affiliates.

Stitch Types:

Double Chain Stitch

Two-Thread Wrapped Edge Overlock (narrow and wide)

Two-Thread Overedge (narrow and wide)

Three-Thread Overlock

(narrow, wide, and wide with decorative threads)

Three-Thread Flatlock (narrow and wide)

Three-Thread Ultra-Stretch Mock Safety Stitch

Four-Thread Ultra-Stretch Mock Safety Stitch

Four-Thread Safety Stitch

Five-Thread Safety Stitch Wide

Five-Thread Safety Stitch Narrow

Cover Stitch Narrow

Cover Stitch Wide

Triple Cover Hem Stitch

Three-Thread Rolled Hem

Double Chain Stitch

This stitch is suitable for straight seams. It also can be used for a decorative

chainstitch topstitching effect. The Middle Cover needle and the Chainstitch Looper

are used. Decorative thread can be placed in the Chainstitch Looper, the needle, or

in both to create various effects.

Double Chain Stitch page 1

ATD:

Auto Tension Dial

“D”

Left Cover Stitch

Needle “C”

Unthreaded and

Remove Needle

Middle Cover Stitch

Needle “D” (Blue)

Threaded

Right Cover Stitch

Needle “E”

Unthreaded and

Remove Needle

Overedge Left

Needle “A”

Unthreaded and

Remove Needle

Overedge Right

Needle “B”

Unthreaded and

Remove Needle

Upper Looper

Looper

Disengaged and

Not Threaded

Lower Looper

Unthreaded

Chainstitch Looper

(Brown)

Threaded

Upper Knife Not Used

Seam Guide Plate Installed

Seam Width Dial “N”

Stitch Length Dial “N”

Presser Foot

Pressure

“N”

Differential Feed Dial “N”

Stitch Finger “R”

Spreader Not Engaged

Set at::

Needle:

Double Chain Stitch page 2

Double Chain Stitch

Turn Auto Tension Dial to “D”.

Turn Stitch Length Dial to “N”.

Disengage Upper Knife. The knife will not trim the fabric when it is disengaged.

1. Open Looper Cover.

2. Pull the movable knife holder (silver screw) to the right as far as it will go.

3. Turn the holder counter clockwise until the knife clicks into a lock

position.

Upper Knife Engaged Upper Knife Disengaged

Double Chain Stitch page 3

Turn Presser Foot

Pressure Dial to “N”.

Turn Differential Feed

Dial “N”.

Turn Seam Width Dial

to “N”.

 Place Stitch Finger to “R”.

Double Chain Stitch page 4

Install the Seam Guide Plate. The Seam Guide Plate provides a flat surface for the

fabric and seam guides. It can only be used when the knife and the lower looper

are disengaged. The Seam Guide Plate is used when sewing the Chainstitch,

Cover Stitch and the Triple Cover Stitch.

1. Open looper cover.

2. Remove Knife Cover by pulling it slightly

towards you.

3. Slide the Seam Guide Plate into place.

Disengage Upper Looper. By disengaging the Upper Looper, the looper no longer

moves when sewing. It is nonoperative. If the looper was still engaged, it would hit

the Seam Guide Plate.

1. Turn handwheel until the Upper Looper is in the

highest position.

2. Push the clutch button to the left and up to

disengage.

Upper Looper Disengaged

Double Chain Stitch page 5

Thread Chainstitch Looper with a decorative

thread

1. Raise the Presser foot to release the

tension disks. Pass the thread from

the back to the front through the

thread guide .

2. Thread the top cover thread guide by pulling the thread towards the left until

it slips under the guide. Then pull thread along the right side of the button,

as illustrated.

3. While holding the thread, firmly pull the thread between the tension disks.

Double Chain Stitch page 6

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