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05 /19/ 26, 11:49amLogin ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1234[5]678910 ]
Subject: Re: 80 FC33 Air dump valve


Author:
Fritz
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Date Posted: 12/ 28/ 06, 10:19am
In reply to: Jon 's message, "80 FC33 Air dump valve" on 12/ 24/ 06, 10:28am

I believe your system, like newer ones, needs pilot air to move the dump valve. Most air systems need more than about 65psi for this to occur. Next, check continuity through the switch (have to get to the backside of the switch and disconnect the leads. Third, with a multi-meter, check for voltage (nominal 12v) on one of the switch leads; and, Fourth, for a solid ground on the other lead. If all these pass, the problem probably lies elsewhere and someone more familiarity with your model can help.

Fritz

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