Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 422)

6-78 Component Definition and Maintenance
7000L-UM300I-EN-P – June 2013 7000 “C” Frame
Strainers
Cleaning the Strainer
1. Open valve V1, shown in Figure 6.63, to ensure flow to the
pumps.
2. Close valve V2 and V3. Loosen strainer by hand. Clean it
properly in water and dry it before putting it back.
3. Open V2 and V3 slowly to avoid a rush of air into the pumps.
The air will gradually be purged from the system by flowing
through the reservoir.
4. Close valve V1.
To Pump P2
V1
V3
Strainer
STR1
V2
To Pump P1
Figure 6.63 – Cleaning the Strainer
Pump Maintenance and
Replacement (cont.)