Vertical Oscillating Shuttle Hook System

Vertical Oscillating Shuttle Hook System

For buying a new sewing machine you need to understand the differences in features between other models of sewing machines. One feature that has a main role is the hook system (rotary and oscillating).
Most of old sewing machines and some modern models have vertical oscillating shuttle hook system. Here is the tutorial how works oscillating hook device and tips for fix it.

The sewing machines have oscillating type of hook

Vertical rotary shuttle and oscillating hooks create the same lockstitch stitches but make it differently.
Such models of sewing machines have oscillating type of hook.

Vertical Oscillating Shuttle Hook System - view 1

Oscillating hook looks like that.

Vertical Oscillating Shuttle Hook System - view 2

To remove the bobbin case pulls toward you this lever.

How to disassemble the oscillating shuttle

Vertical Oscillating Shuttle Hook System - view 3

Holding for the "tail" with fingers you need to pull out the bobbin case.

Vertical Oscillating Shuttle Hook System - view 4

Let's take a closer and look what's inside the oscillating shuttle.
First, turn both retaining ring clips as shown on photo.

Vertical Oscillating Shuttle Hook System - view 5

Remove the locking ring with scarfed shuttle hook.

Conditions for the normal work of the shuttle device

Vertical Oscillating Shuttle Hook System - view 6

Take a magnifying glass and look at its exterior of the hook. Its surface should be smooth without scratches and rusted areas. The hook tip should be sharp.

Vertical Oscillating Shuttle Hook System - view 11

If the sewing machine skips stitches very often the first thing you need to do check this clearance.

Vertical Oscillating Shuttle Hook System - view 7

This plate must not be tightly pressed against the driver.

Vertical Oscillating Shuttle Hook System - view 8

The rotary or oscillating hooks you need regularly clean with double sided lint brush.
The metal moving any rotating parts of hook must be periodically oiled.

How does the oscillating shuttle hook system

Vertical Oscillating Shuttle Hook System - view 9

Professional sewing machines or some home models (computerized sewing machine) have a hook that rotating in a full circle.
Sewing entry-level machines (for price 200-300$) have hook that oscillates back and forth.

Vertical Oscillating Shuttle Hook System - view 10

This is the first step of the hook rotation. The hook tip to the needle fits closely. Now the hook picks up the upper thread from the needle. Next move it to right.

Vertical Oscillating Shuttle Hook System - view 12

This extreme right position of the hook. The thread slips off the point hook and sewing machine thread take up lever begins quickly to pull it up. So way is formed stitch.

Vertical Oscillating Shuttle Hook System - view 13

Once it has done this, the hook reverses its direction and returns to its original location.

Vertical Oscillating Shuttle Hook System - view 14

In this position the shuttle is ready repeat your incomplete rotation and create a new stitch.
I hope this post help you to understand how to work your sewing machine and fix it their own hands.

English isn't my first language, so please excuse any mistakes and help correct them.
E-mail for sending is on the contact page.

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