Wilo -Atmos GIGA-N Einbau- Und Betriebsanleitung Seite 61

Fig. 15: Checking the axial alignment with a
calliper gauge
Fig. 16: Checking the axial alignment with a
calliper gauge – circumferential check
Fig. 17: Adjusting screw A for axial safeguard
B B
Fig. 18: Fastening screws B of coupling halves
6.7.2 Alignment of the pump unit
Installation and operating instructions Wilo-Atmos GIGA-N
Installation and electrical connection
Using a calliper gauge, circumferentially check the distance between the two coupling
halves.
▪ Connect the coupling halves once correctly aligned.
The tightening torques for the coupling are listed in the table "Tightening torques for
adjusting screws and coupling halves".
▪ Install the coupling guard.
Coupling parameter d
[mm]
80, 88, 95, 103
110, 118
125, 135
140, 152
160, 172
180, 194
200, 218
225, 245
250, 272
280, 305
315, 340
350, 380
400, 430
440, 472
Table 7: 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.
▪ Loosen the hexagon head screws and the counter nuts on the motor.
▪ Place shims under the motor feet until the height difference is compensated.
▪ Pay attention to the axial alignment of the coupling.
▪ Tighten the hexagon head screws again.
▪ Finally, check the function of the coupling and shaft. The coupling and shaft must be
easy to turn by hand.
▪ After correct alignment, mount the coupling guard.
The tightening torques for the pump and motor on the baseplate are listed in the table
"Tightening torques for pump and motor".
Tightening torque for ad-
justing screw A [Nm]
4
4
8
8
15
25
25
25
70
70
70
130
130
230
en
Tightening torque for ad-
justing screw B [Nm]
13
14
17.5
29
35
44
67.5
86
145
185
200
260
340
410
61