Rev. 2.0
Maintenance Guide
2-19
<Replacing the timing belt θ: KE-3020VR>
After the timing belt θ has been replaced, it is absolutely necessary to re-input the MS parameters
related to the Z-axis home. (For details of input items, see section 2-8.)
1) Detach the T-sensor dog c.
2) Loosen the stop screws (2 pcs.) of the spline pulley d.
3) Detach the bearing base L e.
4) Detach the spline shaft from the coupling.
5) Pull out the spline housing assembly f downward while detaching the spline pulley.
Additionally, pull out the spline shaft upward.
6) Replace the timing belt θ.
7) Reassemble the components in the reverse order of disassembly.
∗ When the bearing base L is secured, make sure that the shaft is rotated smoothly.
∗ Make sure that the spline pulley and T-sensor dog do not have any play.
∗ When inserting the spline shaft into the coupling, secure the spline shaft with it kept
pushed-in.
∗ Adjust the belt tension following section 2-2-4.
Figure 2-6-3-3
c
d
f
e
e
Timing belt
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