Wilo CronoLine-IL Notice De Montage Et De Mise En Service page 62

English
Screw tightening torques
Post
Impeller — shaft
Pump housing
—
Lantern
Lantern — motor
Coupling
IL 250:
Baseplate
—
Pump housing
Mechanical seal
—
Shaft
Mechanical seal
—
Lantern
Retaining washer
—
Impeller shaft
Retaining washer
—
Motor shaft
Table 5: Screw tightening torques
54
Screw connection
Size/tensile strength class
M20
M18
M24
M16
M20
M16
M20
M10
M12
M16
M20
M6
M8
M10
M10
M16
M20
Tightening torque
Nm ± 10 %
100
A2-70
145
350
100
170
8.8
100
170
60
100
10.9
230
8.8 170
7
25
8.8
35
8.8
35
8.8
8.8 60
8.8 60
Installation
information
Lubricate the thread
with Molykote® P37 or
comparable
Tighten evenly and
diagonally
Tighten the screws
uniformly, keep the
gap even on both
sides
Rescrew and tighten
every screw
separately
WILO SE 08/2016