Tightening Torque - Wilo Atmos GIGA-I Einbau- Und Betriebsanleitung

Installation and operating instructions Wilo-Atmos GIGA-I/-B
Maintenance
9. Loosen the motor fastening screws (Fig. XXV, item 1) on the motor flange and lift
the drive off the pump with suitable hoisting gear (Fig. XXVII).
10. Install the new motor using suitable hoisting gear and screw the connection
between lantern and motor tight (Fig. XXVIII).
NOTICE
For all following work, observe the screw tightening torque specified for the re-
spective thread type (table on screw tightening torques)!
11. Check the coupling and shaft sliding surfaces and, if necessary, clean them.
12. Install the coupling and fasten the mechanical seal (see "Installation" in chapter
"Replacing the mechanical seal" and Fig. XII ... XXI).
13. Install the coupling guard metal sheets (Fig. XXIII).
14. Connect the motor cable.
Always tighten screws diagonally.
Screw connection
Post Size/tensile strength class
1)
Impeller – Shaft M20
1)
Impeller – Shaft M18
1)
Impeller – Shaft M24
Pump housing – M16
Lantern
Pump housing – M20
Lantern
Lantern – Motor M16
Lantern – Motor M20
2)
Coupling M10
2)
Coupling M12
2)
Coupling M14
2)
Coupling M16
Mechanical seal – M6
3)
Shaft
Mechanical seal – M8
Lantern
Mechanical seal – M10
Lantern
Mechanical seal – M10
Lantern
Retaining washer – M16
Impeller shaft
Retaining washer – M20
Motor shaft
Baseplate – Pump M6
housing
M8
Baseplate – Pump
M10
support foot
M12
Baseplate – Motor
M16
Supporting block –
M20
Pump housing
M24
Supporting block –
Pump support foot
Supporting block –
Motor

Tightening torque

Nm ± 10 %
A2-70 100
145
350
8.8 100
170
100
170
10.9 60
100
170
230
7
8.8 25
35
35
60
60
10
25
35
60
100
170
350
en
67