Setting The Axial Play Of The Worm Shaft; Setting The Axial Play Of The Eccentric Tappet - WABECO F1200 Operating Instructions Manual

22. NC rotary table (optional)

22.5 Setting the axial play of the worm shaft

The worm shaft (5) is in the eccentric tappet (7). The axial play of the worm shaft is set using the
setting nuts (27).
To set the axial play of the worm shaft, proceed as follows:
1. Remove the NC drive unit (see chapter: "Removing the NC drive unit").
2. Open the lock by undoing the first of the two setting nuts (27) using a 17 mm wrench.
3. Depending on requirement, tighten or loosen the second setting nut (27) with the wrench.
4. Counter the first setting nut with the second.
5. After successfully completing the settings, reinstall the remaining parts in the reverse order.

22.6 Setting the axial play of the eccentric tappet

The axial play of the eccentric tappet (7) is set using the holding ring (6).
To set the axial play of the eccentric tappet, proceed as follows:
1. Remove the NC drive unit (see chapter: "Removing the NC drive unit").
2. Undo the four threaded pins (26) in the holding ring (6) using a 2.5mm Allen key.
3. Tighten the four fixing screws (22) of the holding ring using a 2.5 mm Allen key crosswise and
medium-tight.
4. With the locking screw (11) loosened, it should only be possible to swivel the eccentric tappet with
difficulty or not at all.
5. The four threaded pins in the holding ring can now be used to set the play very finely.
6. Tighten the threaded pins crosswise, evenly and in small stages and constantly check the
movement of the eccentric tappet.
7. The play is set correctly when the eccentric tappet can again be swivelled evenly with moderate
force.
8. After successfully completing the settings, reinstall the remaining parts in the reverse order.
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