This page covers changing a broken string and how the string is threaded on the left right unit. It is recommended to take the whole unit off and replace it with a spare - if you dont have a spare remove the unit and work on a table

This is how the string should look - remember N for normal

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This video shows in detail how you thread the string through the gantry, through the claw cap and tie a knot to secure it

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Here's another look at it