Wilo CronoNorm NL Notice De Montage Et De Mise En Service page 91

9.7.1 Screw tightening torques
Wilo-CronoNorm-NL
9.7.2 Screw tightening torques
Wilo-CronoNorm-NLG
Thread:
Tightening torque
[Nm]
10 Faults, causes and remedies
10.1 Faults
Installation and operating instructions Wilo-CronoNorm-NL, NLG
• A (pump):
• B (coupling):
• C (baseplate):
• A (pump):
M6 M8 M10 M12
10.5 26 51 89
• B (coupling):
• C (baseplate):
• If the malfunction cannot be rectified, consult a specialist techni-
When tightening the screws, use the following tightening torques.
Thread: M8 M10 M12 M16 M20 M24 M30 M36
Tightening
12 25
torque [Nm]
Tab. 10: CronoNorm-NL - Screw tightening torque A (pump)
see Tab. 6 in section 7.5.2 "Check the coupling alignment" on
page 71.
see Tab. 7 in section 7.5.3 "Alignment of the pump unit" on page 72.
When tightening the screws, use the following tightening torques.
M16 M20 M24
215 420 725
Tab. 11: CronoNorm-NLG - Screw tightening torque A (pump)
see Tab. 6 in section 7.5.2 "Check the coupling alignment" on
page 71.
see Tab. 7 in section 7.5.3 "Alignment of the pump unit" on page 72.
Have faults remedied by qualified personnel only! Observe the
safety instructions in chapter 9 "Maintenance/repair" on page 78.
cian or the nearest customer service or representative office.
The following error types can occur (see Tab. 12):
Error type Explanation
1 Delivery rate too low
2 Motor overloaded
3 Pump end pressure too high
4 Bearing temperature too high
5 Leakage on the pump housing
6 Shaft seal leakage
7 Pump doesn't run smoothly or is loud
8 Pump temperature too high
Tab. 12: Error types
40 90 175 300
M27 M30 M33 M36
1070 1450 1970 2530
English
500 700
M39
3290
90