Festo EXCM-10, Repair Instructions

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32 / 52 Festo 7EXCMc_en
10. Remove the thread locking agent from the countersunk screw of the
clamping plate.
11. Push the toothed belt onto the milled teeth of the Y-axis.
The milled profile of the slide is designed such that the teeth of the profile
mesh with the teeth of the toothed belt. That makes it easier to mount the
toothed belt.
12. Place the clamping plate with the socket head screw onto the toothed belt
so that the guide lug of the clamping plate faces the base profile.
13. Wet the socket head screws of the clamping plate with locking agent.
14. Screw in the socket head screws and tighten them with a tightening torque
of 0.7 Nm ±20 %.
15. Remove the thread locking agent from the socket head screws of the pulley
housing.
16. Wet the socket head screws of the pulley housing with locking agent.
17. Screw the socket head screws into the pulley housing and do
not tighten
yet.
18. Align the outer and rear edge of the pulley housing parallel to the edges of
the base profile.
19. Tighten the socket head screws to a torque of 1.5 Nm ±20 %.
20.
Mount the second pulley housing using a similar procedure to the first.
21. Pre-tension the toothed belt slightly.
Turning the socket head screws clockwise increases the toothed belt
pre-tension, and turning the socket head screws anticlockwise decreases the
tension.
4.1.4.5 Adjusting the toothed belt pretensioning
Caution
The toothed belt pre-tension has a direct influence on the service life of the toothed belt and the performance of the
planar surface gantry. The toothed belt pretension must therefore be checked extremely carefully.
Before the toothed belt pre-tension can be measured, the slide must be moved back and forth a number of times so
that the toothed belt can fully settle and differences in tension can be compensated.