Screw tightening torques
Screw connection
Impeller — Shaft
Pump housing — Lantern
Lantern — Motor
Coupling
Installation and operating instructions Wilo-IL/-DL/-BL
Tightening torque
Nm ± 10%
M10
30
M12
60
M16
100
M16
100
M10
35
M12
60
M16
100
M6-10.9
12
M8-10.9
30
M10-10.9
60
M12-10.9
100
M14-10.9
170
Installation instructions
Tighten evenly and diagonally
Lightly oil the sliding surfaces, tighten
the screws evenly, keep the gap the
same on both sides.
English
37