Wilo EMU FA+HC20.1 Series Installation And Operating Instructions Manual page 42

Maintenance
7-6
3 Fill lubricant by means of the opening in the filling plug (D+). Comply with the specified
lubricants and filling quantities.
4 Clean the filling plug (D+), fit with a new sealing ring and screw it in again.
D+
L
Fig. 7-1: Position of the screw plugs
D-
WILO EMU 3.0