> For the complete documentation index, see [llms.txt](https://micro.printm3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://micro.printm3d.com/technical-support/how-to-guide-replace-z-belt.md).

# How to Guide: Replace Z Belt

If your Z-belt is broken or needs replacing, here is a guide on how to swap out the belt.

\
1\. One side of the x-rods will be glued to the sliders, one side will not.\
Hold the slider in one hand, and the x-rack in the other.

![](/files/-M0ToXYHpCqhRjVt995y)

2\. While holding the slider and X Rack, gently pull apart from each other.\
Please be careful as to not bend the Z Rods, only a small gap is needed.

![](/files/-M0TohBK8d7u5PwWXoLu)

3\. Rotate the slider so the pegs point upwards. The X Axis is now free from the sliders.

![](/files/-M0Tp2mo0_x55E5PyX50)

4\. Take the print head and begin to slide it off the x-rack towards the end that is free to\
remove from rack.\
Set print head aside.

![](/files/-M0UCrIJHvRv-vZxTLs1)

![](/files/-M0UCwGucPBnFGQwKHtI)

5\. Next, push down on a corner of the base and pull up on the same corner of the lid to\
remove the lid (see picture below for technique)

![](/files/-M0UENJ_rvQMNDc6UB8n)

6\. With the lid removed, you will see the z-belt running around the four pulleys on each\
threaded rod in the corners. Take a hook tool to grab the belt and slip it up and over the\
plastic base of the printer.

![](https://support.printm3d.com/scripts/file.php?view=Y\&file=8ef7aa1fb2999a4023d3270e1d223ae8)![](https://support.printm3d.com/scripts/file.php?view=Y\&file=2ee7d3e04e8aa6ba44546c75a098aaa8)

7\. Pull the belt up and over the other corners of the printer and remove

![](/files/-M0UEfC1eFlRhW7X1nCX)

8\. Take new belt and put it around all four threaded rods.

![](/files/-M0UEl6AfClyvqV9zjHF)

9\. Pull down the belt around the plastic edges of the printer and replace belt on all four\
pulleys.

![](/files/-M0UEqOpxm4DYMkKz7yg)

10\. Double check belt is not flipped upside down\
11\. Take lid and replace it, aligning all rods into their respective holes\
12\. Replace print head onto the x-rack\
13\. Your printer is now ready for use again\
14\. Please recalibrate the bed location before printing