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FLavionics · 12-12-2018, 10:58 AM

I have a 2013 Fleetwood Expedition sitting on a Freightliner xcm chassis and I am looking for the air dryer. According to the Freightliner maintenance manual it looks to be two different systems one is a Bendix ad9 and the other a haldex purest. I did call Freightliner and they said it has a a d - 9 system and the air dryer is located driver side in front of the rear axle. Unfortunately I cannot find it and questioned whether or not it is in that area. Any help locating Air dryer would be appreciated

2 Stroker · 12-12-2018, 12:31 PM

Mine dryer is in front of the rear axle close to the floor. I have air leveling so when I have it changed, will be taking it in because the need to dump the air to change it.
2 stroker

cbeierl · 12-12-2018, 01:09 PM

Just fyi, here's the Built On Freightliner info for your coach which does confirm that you should have a Bendix AD-9 air dryer.

FLavionics · 12-12-2018, 01:16 PM

Oh thanks Chris, I see that I also have the automatic moisture ejector which was another question I had.

Hooligan · 12-12-2018, 03:10 PM

Can you follow the air line from the compressor, goes right to the dryer.

FLavionics · 12-18-2018, 01:51 PM

Finally located the AD-9 Air Dryer, it is actually behind the rear axle next to the short drive shaft not in front as Freightliner advised. I took Hooligans advise and traced the supply from the air compressor however this was a little more difficult then expected as the line tucks behind the engine. Had I known the purge valve was located on the bottom of the air dryer it would of been simple to locate just by watching the purge when the air pressure builds to max.

Dutch Star Don · 12-18-2018, 05:56 PM

For whatever reason, Freightliner finds it necessary to BURY the air dryer up in the frame rails. I'm sure it's very accessible and looks great to them on a bare chassis, but once you put a coach body on, it's almost impossible to access.

On my 2014 Dutch Star, they installed the air dryer on the frame rail near the duals, but with the coach body on, you couldn't remove to the cover to access the filter.

I found that it was easier, not really a good word for it, but easier to remove the entire assembly and do the filter replacement on the workbench.

I've been servicing my own vehicles for 45 years and this was one of the hardest jobs I've ever encountered (at least on my chassis). You need 4' arms to reach the darn thing. I asked my local Freightliner shop how much they would charge. They wanted $400.00, just in labor.

I checked my new 2019 coach, bad news.....they still put it in the same spot. Good news....for 2109, they went with a Wabco spin on. Hopefully, they left enugh room to spin it off.

FLavionics · 12-19-2018, 09:53 AM

Quote:

Originally Posted by Dutch Star Don

For whatever reason, Freightliner finds it necessary to BURY the air dryer up in the frame rails. I'm sure it's very accessible and looks great to them on a bare chassis, but once you put a coach body on, it's almost impossible to access.

On my 2014 Dutch Star, they installed the air dryer on the frame rail near the duals, but with the coach body on, you couldn't remove to the cover to access the filter.

I found that it was easier, not really a good word for it, but easier to remove the entire assembly and do the filter replacement on the workbench.

I've been servicing my own vehicles for 45 years and this was one of the hardest jobs I've ever encountered (at least on my chassis). You need 4' arms to reach the darn thing. I asked my local Freightliner shop how much they would charge. They wanted $400.00, just in labor.

I checked my new 2019 coach, bad news.....they still put it in the same spot. Good news....for 2109, they went with a Wabco spin on. Hopefully, they left enugh room to spin it off.

Did you have a "quick Release" line on your Air Dryer? If so did it give you ant problems releasing?