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using the arrow keys, moving up about ten inches (254mm). Next, move to the right ten
inches, down ten inches and left again ten inches. These measurements will be very
precise if you use the millimeter scale LEDs in the upper right corner of the control panel.
Now measure the diagonals of the square with an optical measuring instrument (or calipers
if the square is drawn smaller). The diagonals should be the same length to within about
five thousandths. If the diagonals are not the same, go to step 13 and readjust the position
of the Y rail using the X axis motor shaft. Adjust until the readings of the diagonals are
correct.
15. Proceed to the X axis tension adjustment.
4.8.2 X AXIS BELT TESIO ADJUSTMET
1.
Turn off power and remove power cord.
2.
Remove top enclosure.
a.
To remove the top cover, unclasp the four latches that hold the top cover down. Two
latches can be found on the right side of the machine and two can be found on the left
side of the machine.
b.
Ensure power cord is removed then gently lift the cover up and off of the machine.
This will require two people to accomplish. Watch out for the one inch mirror in the
front left corner of the machine and the electronics and water lines on the right side of
the machine.
3.
Slowly move the Y axis arm all the way to the left.
4.
Using the tension scale in the middle of the belt, measure the amount of tension needed to
pull the bottom belt into contact with the top belt. Tighten the adjusting screws on the
pulley holder until a ready of 200-220 gms is needed to make the top and bottom of belt
touch (reference Figures 2, 3, and 8).
OTE:
Try to tighten the two screws evenly as belt should ride near the middle of the
pulley.
Do both front and rear belts.
5.
Move Y arm all the way to the right. Check tension reading in the middle of the belt. It
should still read 200-220 gms.
6.
Move arm left and right and adjust screws so belts stay approximately centered on pulleys
and tension meter stays as 200-220. Add a drop of Locktite 242 to each adjustment screw.
4.8.3 Y AXIS BELT REPLACEMET
