Maintenance And Service - Grundfos SEG Instrucciones De Instalación Y Operación

Procedure 2:
1. Let the pump hang from a lifting device, e.g. the
hoist used for lowering the pump into the pit.
2. Start and stop the pump while observing the
movement (jerk) of the pump.
3. If connected correctly, the pump will jerk in the
opposite direction of the direction of rotation. See
fig. 11.
4. If the direction of rotation is wrong, interchange
two phases. See fig. 5
Fig. 11 Jerk direction
or 6.

10. Maintenance and service

Warning
Before starting work on the pump, make
sure that the fuses have been removed or
the mains switch has been switched off.
Make sure that the power supply cannot
be accidentally switched on.
All rotating parts must have stopped
moving.
Warning
Except for service on the pump parts, all
FM
other service work must be carried out by
Grundfos or a service workshop
authorised by Grundfos.
Flush the pump thoroughly with clean water before
maintenance and service. Rinse the pump parts in
water after dismantling.
Warning
When loosening the screws of the oil
chamber, note that pressure may have
built up in the chamber. Do not remove the
screws until the pressure has been fully
relieved.
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