Hello and thank you for choosing the Creatr HS for your printing needs.
If you encounter problems with the Z movement of the print bed you have to check the following:
-a number 13 wrench;
-a number 6 Allen key;
-a number 2 Allen key.
First check the tension of the belt that transmits movement to the three Z rods and adjust the tension by unbolting the Z-axis belt tension assembly (indicated with the number 2 in the picture below) you can see in the picture below. You will need a number 13 wrench and a number 6 Allen key.
The second option is to check the grub screws at the bottom of the pulleys(indicated with the number 1 in the picture above) and tighten them to avoid the belt slipping on the pulley thus no movement being transmitted to the assembly. To tighten the grub screws you will need a number 2 Allen key.
Thank you for reading the solution and for any other issues please do not hesitate to contact our Leapfrog Support Team.
We wish you happy printing!