How To Replace The Check Valves - Bertolini GIARDINAGGIO Serie Manual De Uso Y Mantenimiento

6.3

How to replace the check valves

WARNING!
All the nuts and bolts unscrewed in order to service the pump must be retightened
to the required torque value with the proper torque wrench. Consult the charts in the
spare parts catalogue for the required driving torque values.
Replace the check valves and relative O-rings as described below:
1 Remove the valve cover (or the manifold that closes the valves).
2 Remove the valves and check them for wear. Remove and check the O-rings as well.
3 Replace all parts as necessary.
4 Reassemble.
5 Repeat these operations for all the valves.
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