4
Mechanical installation
AQ. adapter coupling
Assembly and Operating Instructions – Explosion-Proof Gear Units
79
INFORMATION
For AQA:
To avoid contact corrosion, SEW‑EURODRIVE recommends applying
NOCO
®
fluid to the motor shaft before mounting the coupling half.
For AQH
: Using NOCO
®
fluid is not approved.
[479]
A
[479]
A
[1]
[1]
[2]
[3]
AQA
AQH
9007199466855947
[1]
Motor shaft
[3]
Washer
[2]
Lock washer
[479] Coupling half
Proceed as follows:
1. Clean the motor shaft and flange surfaces of the motor and the adapter.
2.
AQH design:
Loosen the screws of the coupling half [479] and loosen the conical
connection.
3.
AQA/AQH design:
Heat the coupling half to approx. 80 – 100 °C and push the
coupling half onto the motor shaft up to distance "A". The values for the distance
"A" are listed in the table in chapter
"
Setting standards and tightening
80).
4.
AQH design:
Tighten the screws at the coupling half evenly in diametrically op-
posite sequence, working round several times. The values for the tightening torque
"T
A
" are listed in the table in chapter
Setting standards and tightening
80).
5.
AQA design:
Secure the coupling half using the set screw (see figure).
6. Check the position of the coupling half. The values for the distance "A" are listed in
the table in chapter "Setting standards and tightening torques" (→
7. Mount the motor onto the adapter, making sure that the claws of the two coupling
halves engage in each other.
ð
The force that must be applied when joining the two coupling halves is dissip-
ated after final assembly, so there is no risk of any axial load being applied to
adjacent bearings.
24804134/EN – 05/2018
