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Old 28th Sep 2018, 10:52 am   #11
ukcol
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Join Date: May 2003
Location: Harlaxton, Lincolnshire, UK.
Posts: 3,944
Default Re: Ferguson 621U - help needed

One thing you need to be aware of, although only pin 2 is assigned to the control grid in the UL84, pin 1 is connected to pin 2 inside the valve. This means you will need to include pin 2 in the work that Chris mentioned above.
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