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9-24
Application Notes
1:
Terminal box = pointing up
2:
Drain hole = pointing down
Fig. 9-28:
Position of the drain hole in the motor as delivered
In certain installation situations, it may be necessary to install the motor
with the terminal box positioned at the side or pointing down.
In these cases, turn the flange of the labyrinth seal before installing the
motor until the drain hole is once more below the output shaft. In this way,
correct functioning of the labyrinth seal is ensured.
(1):
Drain hole
Fig. 9-29:
Example for a permissible position of the drain hole of the labyrinth
seal
For this purpose, the flange has a hole circle with additional mounting
holes in a 30° grid. To bring the drain hole of the labyrinth seal into the
required position, perform the following assembly steps:
1. Unscrew the mounting screws (4x M6 DIN912).
• If necessary, heat the screws to approx. 70°C to loosen them as
they are glued in with Loctite 243.
2. Turn the flange on its center so that the drain hole points down once
more.
3. Moisten the mounting screws (4x M6 DIN912) with Loctite 243 and
screw them into the aligned threaded holes through the holes in the
flange.
• Tightening torque 9 Nm.
4. Attach the motor.
Note:
For motors of frame sizes 130 to 180, Rexroth offers suitable
accessories for retrofitting the motors. For more information,
please refer to chapter 7.1 "Labyrinth Seal".
Rexroth IndraDyn A
Bohrung_Lab_dichtung.EPS
Bohrung_Lab_dichtung_2.EPS
DOK-MOTOR*-MAD/MAF****-PR03-EN-P
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