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Author Topic: Is this a low air pressure sensor, or what?  (Read 471 times)
Mex-Busnut
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« on: November 26, 2012, 03:19:40 PM »

Dear Friends,

I am sure learning a lot from everybody here! Thanks!

Under our dash is this thingamajig. It is connected to the airline that feeds the windshield wipers and the one that that actuates the external step. However, it was NOT connected electrically when we got our bus. Would this be a low air pressure sensor, and air pressure switch or???

Thanks in advance, and be blessed!
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Dr. Steve, San Juan del Río, Querétaro, Mexico, North America, Planet Earth, Milky Way.
1981 Dina Olímpico (Flxible Flxliner clone), 6V92TA Detroit Diesel
Rockwell model RM135A 9-speed manual tranny.
Jake brakes
100 miles North West of Mexico City, Mexico. 6,800 feet altitude.
luvrbus
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« Reply #1 on: November 26, 2012, 04:30:54 PM »

That is a Bendix LP-2 low pressure valve old but still available on the market in a rebuilt unit
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Life is short drink the good wine first
Mex-Busnut
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« Reply #2 on: November 26, 2012, 04:45:43 PM »

That is a Bendix LP-2 low pressure valve old but still available on the market in a rebuilt unit
Thanks, sir! So what would have been its purpose? Do I need to replace it and hook it up to a buzzer or something?
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Dr. Steve, San Juan del Río, Querétaro, Mexico, North America, Planet Earth, Milky Way.
1981 Dina Olímpico (Flxible Flxliner clone), 6V92TA Detroit Diesel
Rockwell model RM135A 9-speed manual tranny.
Jake brakes
100 miles North West of Mexico City, Mexico. 6,800 feet altitude.
luvrbus
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« Reply #3 on: November 26, 2012, 04:55:16 PM »

It is for a warning lite or buzzer or both to warn of low air pressure, low air pressure sensors were simple a hot wire going in and the wire to what ever @ below 60 lbs they would close the circuit  turning the the lite or buzzer on, when above 60 lbs it would open the circuit turning the lite or buzzer off  but all of this was before engineers did their thing lol hook it up it was a safety feature
« Last Edit: November 26, 2012, 05:49:23 PM by luvrbus » Logged

Life is short drink the good wine first
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