Air ride pin box question

Cummins12V98 wrote:
You need to air it up to 100psi overnight then do your adjustment after hitching. Give it a try, worked for me.

That's interesting, and I'll try to remember that, although before hitching I air mine up to about 70 lbs, then after hitching up I drop the pressure until the shock is just above mid stroke, usually around 65 lbs. I almost never have to add more pressure during a trip, even when it's a couple of months.
Good to know.

You are welcome!!!

Another Happy Ending on RV.NET :B

It's been awhile but we were on the road.

On Thursday, August 17 I aired the pin box up to 98 psi - that's all my compressor would give me! On Tuesday August 22 I went to the storage yard to go on our trip and lowered to 68 psi. We were gone for 4 weeks and the pin box held this pressure except once mid trip - it was down to 64 psi and I topped it back up to 68 psi.

I checked the pressure every couple of days (before we were leaving from a stop) and I was pleasantly surprised that it held the pressure so well. It seems to have worked!


Thanks Cummins!

I will give it a try before our next trip. Thanks for the tip!

You need to air it up to 100psi overnight then do your adjustment after hitching. Give it a try, worked for me.

Cummins12V98 wrote:

Bionic Man wrote:
Why would the amount of psi effect the air bleeding out?

On my previous DRV I had the same pinbox. I was told on a DRV forum that TrailAir said to pump to 100psi and it should seal whatever was allowing the pressure to drop. I did the suggested and it did worked.

Interesting. So you are suggesting fill it to 100 psi and then drop to a lower pressure and it should hold the lower pressure? (The lower pressure being the one where the arrows line up on the shock absorper.)

Interesting. I haven’t had the same luck. I’m ready to replace the Schrader valve to see if that helps.

On my previous DRV I had the same pinbox. I was told on a DRV forum that TrailAir said to pump to 100psi and it should seal whatever was allowing the pressure to drop. I did the suggested and it did worked.

Why would the amount of psi effect the air bleeding out?

Fill it to 100psi and let it set.

Fill bag so arrow tips are aligned with designated point. That's it as it does not matter if it is at an angle or not. Won't hurt to lower the pressure from there is you want.