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3.2) Installation of the gear motor
If a base for the gear motor already exists, fixing must be performed
directly to the surface by means of expansion bolts.
If this is not so, it is necessary to:
1. Dig an adequately large foundation hole.
2. Prepare one or more conduits for the electrical cables as shown
in Figure 5
3. Assemble the four clamps on the foundation plate setting one nut
underneath and one on top of the plate as in fig. 3. so that the
threaded section protrudes out of the plate as much as possible.
4. Pour the concrete and, before it starts to harden, set the foundation
plate checking that it is parallel to the leaf and perfectly level
as shown in Fig. 5. Wait for the concrete to harden completely
5. Remove the body from the gear motor following the procedure
shown in Fig.7 in reverse order.
6. Place the gear motor on top of the foundation plate and make sure
it is perfectly parallel to the leaf, then secure it by tightening the 4
nuts with washers to the respective clamps as shown in Fig. 6.
7. Release the pinion as shown in the “Release and manual movement”
paragraph in the Chapter “Instructions and Warnings for
users of the TUB3500 gear motor”
8. Open the leaf up completely and place the first piece of the rack
on the pinion and check that the beginning of the rack corresponds
to the beginning of the leaf. Make sure that there is at
least 2÷3 mm of play between the rack and the pinion, then fasten
the rack to the leaf using suitable means.
9. Slide the leaf, using the pinion as a reference point for the fastening
the other elements of the rack
10. Cut away any excess of the rack
11. Open and close the gate several times and make sure that the
rack is aligned with the pinion with a maximum tolerance of 10-
15 mm. Moreover, check that the play of 2-3 mm between the
pinion and the rack has been respected along the entire length.
12. Fix the two “Opening” and “Closing” limit switch brackets with
the relative dowels to the outer sides of the rack as shown in Figure
4. Considering that the leaf will slide for a further 2÷3 cm
after the limit switches have activated, the brackets should be
positioned at a sufficient distance from the mechanical stops.
13. Perform the operation described in point 7 in reverse and block
the pinion.
14. Secure the body to the TUB3500 as shown in Fig. 7 and ensure
that the limit switch lever positioned above the pinion moves
freely.
15. Close the gear motor door and make sure that the safety
microswitch positioned to the right of the electric motor is activated.
GB
! In order to prevent the weight of the leaf from affecting the
gear motor, it is important that there is a play of 2÷3 mm
between the rack and the pinion.
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4 5
6 7
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