Ultimaker UM2 Assembly Manual page 17

22. Insert the last axle on the right
back through the housing.
23. You start with a pulley with the
narrow facing the frame. This is diffe-
rent from all the other pulleys. Put a
small timing belt around the pulley
24. Then slide a 10mm spa-
cer on to the shaft.
26. Slide the last 5 mm spacer to the shaft and
attach the timing belt on the right side of the front
axle. Also slide the shaft through the housing until
it is flush with this. When the gantrey is put to-
gether all the screws can be tightend down firmly
25. Followed by a pulley. With the
broad side facing the frame. and
the slideblock
17