Ultimaker Ultimaker S5 Pro Bundle, Installation And User Manual

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Ultimaker S5 Pro Bundle user manual 36
5.6 Check for play on the axles
The four X and Y axles are locked in place by the pulleys. However, it is possible that one or more of the pulleys can
become slightly loose over time, which could affect their alignment. If this is the case, there could be play on the X
and/or Y axles which can cause issues with print quality.
It is recommended to check for play on the axles at least once every three months.
1. Open the cover of the Air Manager to access the axles
2. Start with the right X axle. Place the print head in the back-left corner of the printer to keep it out of the way
3. Hold the frame of the Ultimaker S5 with one hand, and firmly hold the right X axle with the other
4. Attempt to move the axle forwards and backwards; do not be afraid to apply too much force
5. Repeat this for the other axles. Make sure to move the print head to the opposite side each time
The axles should not move at all. If one of the axles does move, you will notice a ticking noise caused by the pulleys
hitting the frame. In this case, it is recommended to calibrate the print head.
5.7 Check the tension of the short belts
Maintaining correct tension on the short belts is important to ensure good print quality. The short belts transfer
the movements of the X and Y motors to the print head. If the belts are too loose, print head movement may not be
accurate, which can cause print inaccuracies.
Over time, the belts may become slack. It is recommended to check the tension of the short belts at least
once every three months.
Pluck the two short belts to check their tension.They should resonate, like a guitar string. It should not be possible
to press the belt against itself. Furthermore, the tension of the two belts should be equal.
To restore the tension, perform the following steps:
1. Open the cover of the Air Manager to access the X and Y motors
2. Loosen the Y motor by using the hex screwdriver to loosen the four bolts that hold the Y motor to the left
panel. Do not remove the bolts. The motor should be able to slide up and down
3. Firmly press down on the motor with one hand. This ensures maximum tension on the short belt
4. While still pressing the motor down, tighten the four bolts of the Y motor in a cross pattern. First tighten the
topleft bolt, then the bottom-right, followed by the bottom-left and ending with the top-right. This ensures that
the motor is attached straight
5. Perform the above steps for the X motor that is attached to the back panel. Afterwards, check the
tension of both belts again