Bendix AD-4 Air Dryer Cartridge Replacement

[deandec]

Has anyone replaced this cartridge on a DIY basis?

It seems that one could buy a complete AD-9 for about $200 or a new AD-4 cartridge for about $50.

But, without a pit to operate from, access to my AD-4 Dryer would be tough with all the air removed from the suspension and the six wheels on 2x12 ramps about 6" high.

I suspect I need to dismount the entire dryer to change the cartridge?

Are there any tricks to this procedure that would help me DIY this maintenance?

[Tim&Paula]

Not sure how and where yours is installed but on my Winnebago UA, I used the hydraulics to jack the rear up then installed jack stands for safety. The dryer cartridge was very easy to replace. Once I got under there and studied it a little everything came apart and replaced nicely. If I remember right I did not have to dismount the dryer but it has been a while. Make sure you bleed the air!

[LJ2654]

I have a 2001 Beaver Contessa and did the servicing on my air dryer myself.

I drained all the air from the system and stlii had enough room to lay under rear of coach and remove the filter and small inner coalescent to change, kit had a new valve for the bottom where air releases too...

took about 45 minutes to do it all. I just loosened bolts and tilted canister enough to get a grip on filter to loosen it.