How To Replace The Small X Axis Belt Loop

The small X axis belt can sometimes become 'noisy' enough to warrant replacing. This is often mistaken for bearing noise.

 This noise will sounds like squeaking, growling, like a bearing. But the bearings are likely okay and no lubrication is required here. 

Here is what the noise typically sounds like:

This belt usually gets changed for that reason and not due to a critical failure. There is sometimes a spare belt in the toolbox that came with your laser.

Here is how to replace it:

Gauge the belt tension prior to beginning the process and take some pics of the assembly for reference, just in case

Loosen 4 motor mounting bolts:

The 4 bolts (A) are accessed from the bottom side

Adjust tension screw to remove belt:

Turn tension screw (B) counter-clockwise until there is enough slack to remove the belt

Install new belt:

Remove the old belt and replace with the new one

Tighten the tension adjustment screw:

Adjust the tension screw clockwise until the belt is properly tensioned

Tighten the 4 motor bolts:

Tighten the 4 motor screws to lock it down

Reference Information:

Nova Series Belts

Replacement Belt

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