Wilo Norma V Series, Installation And Operating Instructions Manual

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ENGLISH
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Threads Tightening torques
M6 8,5 Nm
M8 12 Nm
M10 25 Nm
M12 40 Nm
M16 90 Nm
M20 175 Nm
M24 300 Nm
M30 500 Nm
M36 700 Nm
Stainless steel bolts : apply anti-fretting paste before assembly.
Tightening torque for back cover fastening nuts 92.00 :
Thread Tightening torque
M12 65 Nm
M16 130 Nm
9.6 TOOLS REQUIRED
A typical range of tools that are required for pump maintenance is
listed below. Those tools are standard one and should be available in
every industrial maintenance Dpt.
- Wrenches to suit up to M48 nuts,
- Socket spanner up to M 48,
- Allen keys up to 10 mm,
- Range of screwdrivers,
- Soft mallet.
If maintenance work must be performed in an ATEX classified area
then make sure that use of all necessary tools are authorized in the area.
More specialized equipment :
- Bearing pullers,
- Bearing induction heater for ball bearing assembly,
- Coupling grip spanner.
- Bronze/plastic drift and a press,
- Drilling guide M8 /

5.5 and M6 /

4.