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Rear ACS/suspension on 2015 RT seems to have failed - anyone else? How did you address it?

Dmetcalf

Member
I have a friend who just purchased a used 2015 RT special. It seems like his rear suspension has failed. The rear suspension doesn’t seem to work at all (air bag issue or compressor issue)? Have any of you had the same issue and if so how did you address it?
 
I have had the same issue with my 2012.

In my case I could hear the compressor running, but no air came to the bag. I decided to dig out the compressor (there's a lot of stuff to remove) and it turned out the issue was a broken axle from the motor to the piston rod, so the piston was not moving. I was fortunate to find a used compressor on Ebay to replace the broken one and all is good now.

Regarding your friends issue, it could be various causes. I would start by digging out the compressor and try hook it up to a 12V battery to see if it is alive. If it is, then use a multi-meter and try to locate how far along you have power. I hope it turns out fine.

Piston.jpg
 
A lot of us have had issues with the compressor on our bike! Some will dig into the system and try to fix it. It's a great system that works great while it works, but when it goes, it's a piece of crap! You have an air bag and a less than great shock back there, and when one passes on you are riding on your frame. On the lesser style Spyders, they have a manual fill system where you set the bag at a sweet spot where it is comfortable, and you have the ride you want, no fuss, no muss, easy peezy. It will not take much to change your friend's system over to that, you just need to connect the bag to the Schrader valve, there's plenty enough hose in there, all you need is a coupling from the auto parts store, they make them for air lines on big trucks! That bag is rated for 90 psi, but you will not need anywhere near that, I use 45-65 psi for my bride and I, only be careful, it fills fast! The fittings on the system have a ring you push in on the end, and pull out on the hose at the same time so you can disconnect them. Unhook the power to the compressor and the dump value and you're on your way for just a couple bucks! Or you can open your wallet up, fix the compressor, and hope it will hold up and not happen again! Do some homework, do a search on the home page at the top, and read some of the compressor tales. Good Luck!
 
After three compressors that went bad on my 2011 RTS, I removed all the automatic stuff and changed the system to manual as Mikey states above. My first compressor that went bad was the bolt holding the piston to the crank. Second and third compressors were due to bad one way valves (the check valve) on the compressor. The check valve should have a filter, to help keep road grime from entering the compressor.
 
Changed mine to manual years ago after a compressor failure. An inexpensive fix, it holds pressure for many weeks...
 
I have had the same issue with my 2012.

In my case I could hear the compressor running, but no air came to the bag. I decided to dig out the compressor (there's a lot of stuff to remove) and it turned out the issue was a broken axle from the motor to the piston rod, so the piston was not moving. I was fortunate to find a used compressor on Ebay to replace the broken one and all is good now.

Regarding your friends issue, it could be various causes. I would start by digging out the compressor and try hook it up to a 12V battery to see if it is alive. If it is, then use a multi-meter and try to locate how far along you have power. I hope it turns out fine.

View attachment 248839
I've have both an RTL and RT. One with ACS - working fine, and one without ACS. I appreciate the direct no compressor connection and just rely on the airbag. If the RTL compressor fails, I will just do a direct connection and go around the compressor. I've never heard of an airbag failure. Usually the connections or the piston.

Ps: Hello Norwegian RT! I'm still using the trunk lift and have made a few for friends!!! Absolutely the best invention ever!!
 
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