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Field Trip · 10-01-2019, 07:54 PM

OK, I cannot find my air tank lanyards on my 2019 Ventana 4369.
I am asking anyone with a similar coach who is enterprising enough while underneath their coach to shoot a picture and send it to me.
Thanks in advance.

10 fan · 10-01-2019, 08:07 PM

Mine are inside of the right front tire.

NealC · 10-01-2019, 08:10 PM

There are 3 total. 2 on one side behind the front tire, one on the other behind the tire.

Now if I could just remember to pull them! It's been a long time! Tomorrow I will!

Akdare · 10-01-2019, 08:17 PM

Ok. Teachable moment. What are air tank lanyards and why would they need to be pulled?

Golfer Guy · 10-01-2019, 08:27 PM

On my 2017 DS 4369 they are found when you look forward of the front passenger wheel well. About three feet in there easily accessible with a hook of some sort to reach in and grab them pull to drain.

Maybe yours in different I don't know but I would think the are the same.

OldWEB · 10-01-2019, 08:38 PM

Quote:

Originally Posted by Akdare

Ok. Teachable moment. What are air tank lanyards and why would they need to be pulled?

The lanyards are connected to the tank drain valve.
From Freightliner website:
Air Brake System Draining
Air reservoirs serve as storage tanks for compressed air. They collect water condensed from the air, and small amounts of oil normally enter the reservoir in the form of vapor, because of the heat generated during the compression. After the water and oil condense, they collect near the tank drain valves and should be drained regularly.
If the air tanks are not equipped with automatic drain valves, you should drain the tanks daily during vehicle operation.
If they are equipped with automatic drain valves, they should still be drained manually every six months during operation. To drain the tanks, pull the three drain lanyards provided until all moisture is expelled.

Akdare · 10-01-2019, 08:46 PM

Quote:

Originally Posted by OldWEB

The lanyards are connected to the tank drain valve.
From Freightliner website:
Air Brake System Draining
Air reservoirs serve as storage tanks for compressed air. They collect water condensed from the air, and small amounts of oil normally enter the reservoir in the form of vapor, because of the heat generated during the compression. After the water and oil condense, they collect near the tank drain valves and should be drained regularly.
If the air tanks are not equipped with automatic drain valves, you should drain the tanks daily during vehicle operation.
If they are equipped with automatic drain valves, they should still be drained manually every six months during operation. To drain the tanks, pull the three drain lanyards provided until all moisture is expelled.

Thanks...so just like the release on the bottom of a compressor.

10 fan · 10-02-2019, 08:26 AM

Quote:

Originally Posted by Akdare

Thanks...so just like the release on the bottom of a compressor.

If you are draining them you might as well preform the air brake test while doing it. Here is what Spartan gives us. (Just posted this on another).

edgray · 10-02-2019, 09:05 AM

Quote:

Originally Posted by Akdare

Thanks...so just like the release on the bottom of a compressor.

YES. However, "most" modern air brake systems now include an "air drier" which automatically ejects the moisture before it reaches the air tanks. Pulling the tank drain values open is still a good practice (at least weekly) and if water is present that indicates the drier's replaceable canister needs to be replaced.

twinboat · 10-02-2019, 09:29 AM

Quote:

Originally Posted by Akdare

Thanks...so just like the release on the bottom of a compressor.

There is no air reliese on the compressor.

What you are probably referring to is the air dryer that automatically relieses air every time the compressor goes into standby mode, after bringing the air pressure up to system max.

hugh37 · 10-02-2019, 10:55 AM

While we're gaining all this good and helpful knowledge regarding "what to do and when to do it with our lanyards", it might benefit the OP (Field Trip), if important and maybe critical, to speak of the different lanyards (wet, primary, secondary) and the "order" in which they should be pulled. Question: If important and critical, how are the different lanyards identified and what is the precise order in which they should (must?) be pulled?

woodosgood · 10-02-2019, 12:42 PM

There is 1 on the passenger side (1st picture) and 2 on the drivers sides behind the front wheel. I use the exterior window shade metal pole with the L Shaped hook on the end to grab the wire loop.

woodosgood · 10-02-2019, 12:46 PM

I did not have to crawl underneath to get these photos or to pull the lanyards. It may be easier to turn the wheels to get access, but I am able to do it with the wheels straight. According to the people at Freightliner that I have talked to, there is no specific order to pull them and twice a year is often enough.

edgray · 10-02-2019, 12:56 PM

Quote:

Originally Posted by woodosgood

I did not have to crawl underneath to get these photos or to pull the lanyards. It may be easier to turn the wheels to get access, but I am able to do it with the wheels straight. According to the people at Freightliner that I have talked to, there is no specific order to pull them and twice a year is often enough.

I suggest you talk to some different people at FCCC. It makes no sense to me that, if your drier fails (for example) you should wait potentially for up to 6 months before dumping the water that has been accumulating. As you know pulling the lanyards is no big deal, so why wait 6 months?

As for the "order" issue, Spartan goes into great detail as to why that IS important. I don't have the details with me now, but since the air moves from one tank to another, you want to purge the last tank last.