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The following video shows how to adjust the motor-valve coupling. The steps are: loosen the set screws on the top half of the coupling that attaches to the motor shaft using a 1/16" allen wrench; rotate valve closed by hand in the clockwise direction; lift and lower the top half of the coupling and press it downwards; tighten the set screws while holding the coupling down.
Coupling adjustment for Intellifaucet, EPV and ECV valves.
Hass Manufacturing Company
371 NY Highway 351
Averill Park, NY 12018
Tel 518-674-8151 Fax 518-674-8157