Operating Instructions
2K120/2K121
Initial
Installation
15
3.3.3
Closed design (with shaft seal)
This variant incorporates an adapter plate (5) with
shaft seal (7), which means that the gearbox forms
a compact, closed unit.
The adapter plate and drive hub (1) are separately
delivered loose. Clean the fitting surfaces of the
motor (3) and drive hub. Check the motor shaft (2)
for axial and radial runout as described in chapter
3.1. Also lightly grease the motor shaft.
After cleaning the fitting surfaces, place the
adapter plate with radial shaft seal onto the motor
housing. Heat the drive hub to approx. 120 °C
from the opening and slide it onto the motor shaft
until it reaches the stop or shim (13).
CAUTION
Risk of motor shaft damage if the hub is not
sufficiently heated.
Tighten the threaded pin (9) and secure it to
prevent it from turning, see chap. 3.4.
CAUTION
Thoroughly grease the radial shaft seal and the
drive hub before installation. When installing, make
sure that the sealing lip and the radial shaft seal are
in the correct position.
NOTE
The radial shaft sealing ring in the drive motor
must be removed on the output end when the
closed design is used.
3
10
1 2
13
7
5
6
11
C
