Seneca Compressor - All Quiet Now

[brtnsnwbrds10]

Originally Posted by javamon

If you have an invoice for this work that details part#, etc, it would be very helpful if you could post it. Would like to discuss this with my Freightliner shop. Thanks.

do you also have pictures of the addition?

[Nogara]

I do not have pictures and cannot locate the invoice. I do have the number and name of the service manager that recommended the fix and completed the installation. The company in Farmington NM is the Lone Star truck group Farmington Freightliner. The service manager’s Name is Daniel Bradshaw, Toll free number is 800-836-8230.
Daniel told me he had made this fix on another motor home and it worked so he suggested same for ours. Worked for us.

[javamon]

Originally Posted by Nogara

I do not have pictures and cannot locate the invoice. I do have the number and name of the service manager that recommended the fix and completed the installation. The company in Farmington NM is the Lone Star truck group Farmington Freightliner. The service manager’s Name is Daniel Bradshaw, Toll free number is 800-836-8230.
Daniel told me he had made this fix on another motor home and it worked so he suggested same for ours. Worked for us.

Farmington, NM. Just went thru there in March. Thanks for the info...I'll give him a call.

[jxn2083]

Thanks, Nogara for your post. I emailed Daniel about the check valve part number. This is his reply.

Jim.
What we did is install check valve (BW K112234) in air tank where main supply line from air compressor ties into air tank. With check valve in place it takes the vibration from air entering air tank away. Warranty should pay if still have warranty on unit. Hope this helps.

[Crossingover]

Originally Posted by Nogara

He said adding an inline check valve will mute the noise and that the tanks have an automatic dump that should keep things dry.

Makes me wonder that going without an air dryer is not such a bad thing, compressor noises aside. Thanks for the check valve P/N. Now if Freightliner could just come up with a hushed radiator fan . . . .

[Mark S]

I took my Seneca to Freightliner today for service and showed the service writer your email. He looked puzzled as he read it and went to his warranty administrator. He can back and said they have never heard of this but would do it under warranty.

Hopefully this will solve the noise issue as it did yours. Thanks for posting.

[RyRoRyan]

What email?

[Mark S]

This email Ryan:

Originally Posted by jxn2083

Thanks, Nogara for your post. I emailed Daniel about the check valve part number. This is his reply.

Jim.
What we did is install check valve (BW K112234) in air tank where main supply line from air compressor ties into air tank. With check valve in place it takes the vibration from air entering air tank away. Warranty should pay if still have warranty on unit. Hope this helps.

[brtnsnwbrds10]

Originally Posted by Nogara

I do not have pictures and cannot locate the invoice. I do have the number and name of the service manager that recommended the fix and completed the installation. The company in Farmington NM is the Lone Star truck group Farmington Freightliner. The service manager’s Name is Daniel Bradshaw, Toll free number is 800-836-8230.
Daniel told me he had made this fix on another motor home and it worked so he suggested same for ours. Worked for us.

Thank you for the part number and information I did look it up and it appears it might be easy enough for me to add the check valve at $21. Did you significantly notice a difference in noise?

[javamon]

Originally Posted by Mark S

I took my Seneca to Freightliner today for service and showed the service writer your email. He looked puzzled as he read it and went to his warranty administrator. He can back and said they have never heard of this but would do it under warranty.

Hopefully this will solve the noise issue as it did yours. Thanks for posting.

Was the quieting significant? I guess anything is an improvement. What an embarrassment driving thru an RV park with that damn thing clanging away. Sure would appreciate if you could post a few pictures. The round-trip to Freightliner is 120 miles so I would prefer to just buy the valve and install myself. Thanks!

[Mark S]

Originally Posted by javamon

Was the quieting significant? I guess anything is an improvement. What an embarrassment driving thru an RV park with that damn thing clanging away. Sure would appreciate if you could post a few pictures. The round-trip to Freightliner is 120 miles so I would prefer to just buy the valve and install myself. Thanks!

I am hoping it will be ready for pick up today. I’ll let you know.

[RVermont]

A couple of thoughts.

If you are using your rig in the freezing cold and have air brakes a couple thoughts.

The new S2RV chassis do have air dryers. Seems to tell me that they feel these are important to have on the chassis.

The auto dump valves on the older m2 are designed for elimination of condensate and do an effective job. However these are not heated and running these in cold weather can cause the valves to freeze open. I had this experience last winter even though i had the dryer installed.
Unfortunately there was still enough moisture to freeze the valve open and I could not maintain air. I had to climb under the rig and blow with hot air to get the unit to seal.

Bendix makes the air dump valve in two configurations, a unheated unit and a heated unit that keeps the valve operational in cold weather. I plan on getting the unit upgraded to the heated model.

One note on the air dryer is that while the compressor is almost silent in the cab, the cleaning/vent function when the compressor shuts off is very loud. A sudden loud rush of air can make you jump, especially if you working on the unit and near the dryer when it vents. The first few times i drove the unit after the upgrade i questioned my decision, now i hardly ever notice the sound

[Mark S]

I picked up my Seneca from Freightliner this morning. So either they disconnected my compressor or the check valve on the tank is working. I did not hear the compressor driving home. So I am very happy with the improvement.
I crawled under the RV when I go home to take some photos to share but I could not find any changes to the connections to the air tanks. So I either don’t know what I am looking for or they really did disconnect the compressor. LOL
I will go back out when it cools down a bit and look further.

[Mark S]

I went back out and can’t find anything new on the tanks. Where is the compressor located? Maybe they installed the check valve coming off the compressor.

[Robbbyr]

Originally Posted by Mark S

I went back out and can’t find anything new on the tanks. Where is the compressor located? Maybe they installed the check valve coming off the compressor.

Driver's side near rear of engine down low, almost at frame rail level.

[FYIB]

Originally Posted by Robbbyr

Driver's side near rear of engine down low, almost at frame rail level.

Can someone that got this done please post a photo of the addition. I have the part and assuming it was added to the actual compressor and not the air tanks.

Thanks

[Mark S]

Send me a photo of the part and I will crawl under the RV tomorrow and see if I can find it.

[FYIB]

This is the part.



And here is "I believe" the compressor, but 100% sure. It's frame level on drivers side.

https://www.dropbox.com/s/ed8kc2izjh...0380.jpeg?dl=0

Again, thank you.

[FYIB]

Here is the part and also what I believe is the compressor but not 100% sure. It's frame level on the drivers side.

Thanks

[Mark S]

Check valve is installed on the top front of the air tank. Photo taken from driver’s side. I hope this helps.