How to re-thread a sternum strap on a child’s backpack (re-thread the ladder lock) - iFixit Repair Guide

Introduction

On a child’s backpack, it can sometimes happen quickly that the sternum strap gets lost. Don’t worry, this strap can be replaced quickly and easily.

What you need

Step 1 sternum strap

How to re-thread a sternum strap on a child’s backpack (re-thread the ladder lock), sternum strap: step 1, image 1 of 2

How to re-thread a sternum strap on a child’s backpack (re-thread the ladder lock), sternum strap: step 1, image 2 of 2

You’ll need a new sternum strap.

Step 2

How to re-thread a sternum strap on a child’s backpack (re-thread the ladder lock): step 2, image 1 of 1

First, thread the webbing between the shoulder straps and the sewn-on webbing on the shoulder straps from the inside to the outside.
Tip: It is important to thread the webbing through correctly, otherwise the strap won’t do its job right and can slip.

Step 3

How to re-thread a sternum strap on a child’s backpack (re-thread the ladder lock): step 3, image 1 of 1

Then thread the webbing back behind the shoulder straps.

Step 4

How to re-thread a sternum strap on a child’s backpack (re-thread the ladder lock): step 4, image 1 of 1

Thread the webbing through the ladder lock buckle and tighten it.

Step 5

Here you again see everything summarized in the video.

Conclusion

Finished! You did it.

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Daniel Schmid

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