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Michael,<br>
<br>
At bare minimum, evacuate the system, change the low & high
pressure fittings and refill with R-134 and oil. <br>
<br>
It's recommended to replace the dryer and should be done (any time you
have the system opened up) but not 100% mandatory.<br>
<br>
And 134 may eventually leak out of the hoses, depending on their age
and composition ... so changing hoses is not a bad idea.<br>
<br>
John W<br>
<br>
<a class="moz-txt-link-abbreviated" href="mailto:MAGCMG@aol.com">MAGCMG@aol.com</a> wrote:<br>
<blockquote cite="midd04.f247166.336944ff@aol.com" type="cite">
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<div>Who has converted the factory air conditioning from R12 to
R134? Do all the parts need to be changed out? How about the lines?</div>
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<div>Any recommendations or comments about this from the group?</div>
<div> </div>
<div>Michael Granet</div>
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