Rockwell Automation 7000L PowerFlex 7000 Medium Voltage AC Drive C Frame - Marine - Manual (Page 255)

Component Definition and Maintenance 4-79
7000 ―C‖ Frame - Marine 7000L-UM302B-EN-P – June 2013
Strainers
Cleaning the Strainer
1. Open valve V1, shown in Figure 4.62, 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 4.62 – Cleaning the Strainer