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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering> Proportion Valve question.
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Topic Review (Newest First)
01-06-2019 01:42 PM
Bob37pont
Quote:
Originally Posted by joe_padavano View Post
No. It's a differential pressure switch. It only makes contact if you loose pressure on one side of the brake system and the internal piston is forced all the way to one side.

Oh, so it would be a brake failure indicator. Got, thanks again Joe.
01-06-2019 01:39 PM
joe_padavano
Quote:
Originally Posted by Bob37pont View Post
Shouldn't the push on contact post between the two inlets go to ground (electrically) when the brakes are pressurized?
No. It's a differential pressure switch. It only makes contact if you loose pressure on one side of the brake system and the internal piston is forced all the way to one side.

01-06-2019 01:37 PM
Bob37pont
And additionally...

Shouldn't the push on contact post between the two inlets go to ground (electrically) when the brakes are pressurized?
01-05-2019 01:14 PM
Bob37pont Thanks Joe.
01-05-2019 08:00 AM
joe_padavano
Quote:
Originally Posted by Bob37pont View Post
When I check/push the reset on the prop valve there is a bit of fluid that leaks out. Is this normal?
Movement on the reset button is only about 1/16".
No. The o-ring that seals that button is apparently bad.
01-05-2019 05:04 AM
Bob37pont
Proportion Valve question.

When I check/push the reset on the prop valve there is a bit of fluid that leaks out. Is this normal?
Movement on the reset button is only about 1/16".

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