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Air dryer rebuild


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Thanks to wise guidance I received from youse (central pa for "you all"), I ordered the rebuild kit for my AD-4...

After removal I gave it a bath (I HATE ENVIRONMENTALLY FRIENDLY CLEANERS!!! GIVE ME SOME PETROLEUM BASED SOLVENT!) Anyway, I digress...

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Once I got it apart it was not hard to figure out the issue...the check valve had its check missing! It was an orifice!

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The bracket was cracked at both mounts so I fixed that up...also used large doublers to prevent reoccurance!

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Everything back together and it works like a champ! My compressor actually shuts off until cut in pressure! The dryer was like this when I got the truck...it is a wonder I didnt wear the compressor out!

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Lesson here...if your compressor cycles constantly, and you replace the governer to no avail, it is most likely the check valve in the dryer draining the wet tank!!!

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