Wilo Yonos GIGA-N 80 Installation And Operating Instructions Manual page 27

B B
Fig. 24: Fastening screws B of coupling halves
6.6.2 Alignment of the pump unit
Installation and operating instructions Wilo-Yonos GIGA-N
Installation and electrical connection
Coupling parameter d
[mm]
280, 305
315, 340
350, 380
400, 430
440, 472
Table 6: Tightening torques for adjusting screws and coupling halves
Any deviations in the measuring results indicate a misalignment. In this case, the unit
must be realigned to the motor.
ƒ
Loosen the hexagon head screws and counter nuts on the motor.
ƒ
Place shims under the motor feet until the height difference is compensated.
ƒ
Pay attention to the axial alignment of the coupling.
ƒ
Tighten the hexagon head screws again.
ƒ
Finally, check the functioning of the coupling and shaft. The coupling and shaft must
be easy to turn by hand.
ƒ
After correct alignment, mount the coupling guard.
For tightening torques for the pump and motor on the baseplate, see "Screw tightening
torques for pump and motor" table.
Screw: M6
Tightening torque 10
[Nm]
Table 7: Screw tightening torques for pump and motor
CAUTION
Risk of damage due to vibrations! Incorrect alignment can lead to vibra-
tions.
Vibrations can damage or destroy individual components.
• Carefully align the pump unit until all measurement results are within the permiss-
ible range.
Tightening torque for ad-
justing screw A [Nm]
70
70
130
130
230
M8 M10 M12
25 35 60
en
Tightening torque for ad-
justing screw B [Nm]
185
200
260
340
410
M16 M20 M24
100 170 350
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