5-18 Y-axis Belts Tightness Adjustment

Tools

1. Torx T8 driver
2. 3mm Allen key 
3. 7mm wrench
4. Phillips screwdriver 
5. Marker pen

Step 1 -
Turn off the machine, remove the power cord, and flip the machine

Step 2 - Mark the rubber foot and screw close to the USB port

The purpose of marking is that this foot's screw will be shorter than others and it has to be in the same position.

Step 3 - Unscrew these bottom screws

T8 screw x 6pcs ＆ 3mm HEX screw x 4pcs

Step 4 - Flip the machine and unscrew the side screws

T8 screw x 2pcs

Step 5 - Mark the screw holes on both sides with the pen

The purpose is to remind yourself that the marked sides will be facing the work area when assembling.

Step 6 - Move the module seat towards the fan to the end

Step 7 -
Lift the upper frame with both hands and place it on the studs.

(Be careful not to get the wires stuck by the frames.)

Example of frame sitting on the studs:

Lifting example video (The video was shot inside the machine)：

Step 8 - Find the belt seats and loosen the nuts with 7mm wrench

Seats Location：

Right side：

Left side：

Step 9 - Adjust the tightness of the belts with a 3mm Allen key

Right side：

Left side：

Step 10 - After the adjustment, tighten the nuts with 7mm wrench

Right side：

Left side：

Step 11 - Restore the position of the upper frame

Please note that the marked screw holes have to be facing the work area.


Restoring the frame：

Step 12 - Screw the side screws

Step 13 - Turn off and flip the machine. Screw all the screws at the bottom

Please note that the marked foot and screw will have to be in a position close to the USB ports.

Suggestion:
It is better not to fully tighten the screws at first as some screws might be misaligned and unable to have the screws put in. Therefore, it is recommended to tighten all the screws after all the screws are installed.

Step 14 - Flip the machine. Move the module seat back and forth

• If it can be moved without a problem, the replacement is then finished successfully.
  
  
• If it is stuck, or it can't be fully pushed towards the fan, please try to loosen the rubber foot screw close to the USB ports and try moving the module seat again.
  
  

#END