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Schrader Valves

posted by  B.C. on  Fri Jun 28 06:28 CST 2002
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last visit: Wed Mar 28 22:28 CST 2012
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A schrader valve is what keeps the air in your tires. Push the little pin in the center and the air can go in or out. Which way depends on relative pressure.

The fittings on the a/c compressor - R12 type - have similar Schrader valves on both high and low side. If a line is connected to a fitting incorrectly such that the Schrader valve isn't open, refrigerant flows slowly or not at all.

Remember that a can is not a pound. It's easy to mis-calculate how much is needed. The fender tag on the Left side should give the amount of R12 needed, RS134a usually is 85% of that. Mine wants 48 ounces R12, so I'll use 40 ounces of RS134a.

Good Luck,

Bob

:>)





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New Trouble charging AC with R-134 ( IT TAKES A VILLAGE TO RAISE A VOLVO)
posted by  jdl  on Fri Jun 28 02:43 CST 2002 >


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