In rare cases, during transportation and as a result of a heavy shock, the x-axis belt can get loose.
The following steps illustrate how to fix the belt.
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Tools needed
- Phillips screw driver
- 1.5mm (or 1/16") Allen key
- 2mm (or 5/64") Allen key
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MAKE SURE THE PRINTER IS SWITCHED OFF
(1) Issue displayed:
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(2) Slide a piece of paper under the x-belt/between gantry and frame - this will prevent the belt retainer from falling into the machine.
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(3) Use the 1.5mm allen key on the belt tensioner and unlock it by sliding it to the left as illustrated on the following 2 pictures.
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(4) The Belt retainer comes off - see picture:
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(5) Unscrew the belt tensioner from the spring:
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(5) As a result we have now 2 loose parts , please put aside.
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(6) Slide out the 2nd part of the belt including the belt tensioner.
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(7) Put belt back through the hole as displayed below.
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(8) Attach the belt to the belt-retainer (between teeth) and screw both parts of the belt retainer together.
Be careful not to tighten too much and risk breaking the parts.
(1st picture is only for illustration, "assembly" should happen on printer as displayed on picture #2)
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(9) Pull on the belt to reinsert the belt-retainer into the carriage and re-insert the 2nd part of the into the the carriage (reverse step #6)
You need to pull strongly on the belt.
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(10) Screw back the belt-tensioner into the spring hook. (1st picture is only for illustration, "assembly" should happen on printer as displayed on picture #2)
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(11) Build up tension by moving the screw from location #1 to location #2.
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(12) The following picture is illustrating the 2 sides where we will now equilibrate tension between the belts:
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(13) On each side you will find 2 screws to loosen up on each pulley- do not unscrew them completely, just loose 4 screws before moving to next step. (2 each side and only on the level of the belt that needs to be fixed)
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(14) As soon as the screws are loosen up, please move the head (x-axis) from left to right and right to left
several times in order to equilibrate the tension between the belts.
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(15) Reverse step # 13 = screw back the 4 screws. Do it on both sides as illustrated below.
You gantry is now operational.