Update....
Havent got anywhere so far.
Talked to dealer, who called forest river. Dealer had them call me.
First guy I spoke with said that sometime last year they changed everything to 3.5" cylinders. As opposed to 5' wide trailers getting 3" and the 6' wide trailers getting a 4" and the 7' trailers getting a pair of 4's. That way they could only stock ONE cylinder.
Still dont explain why mine has a 3" cylinder on it. So I was transfered to someone else. Warranty manager I believe. And he said that no, the switch was a few years ago, and EVERYTHING gets a 3" cylinder now. Then the run-around and blame game started.....
I tried to explain that there is no way a 3"x 24" cylinder.....mounted as they have it.....will dump the ~7300# rated capacity of the trailer. I got asked all sorts of questions. Battery fully charged? did I check the pressure on the pump? IS this just speculation or did you actually try to dump a load? How much weight did you have on? Was it evenly distributed? Etc Etc. Then was told that trailer is only supposed to dump about 6000# max. I said NO, it says right on the side that the max cargo capacity is 7300 and change. And title in hand says empty weight is 2500 and change. And its a 9800 GVWR. HE kept telling me the trailer weighs 3300# empty according to his specs. :MUR: Well, his online specs also shows a 4" cylinder. I asked why the website wasnt up to date if this switch to an underpowered cylinder was over two years ago? He said something to the effect that there is a disclaimer on their site that says specifications are subject to change.
I bought a trailer with a payload capacity of 7300+/-. So I'd expect the hydraulics to be designed to dump around 10000# to have a little buffer. Because the nature of the way I intend to use the trailer, I will never know the exact load on it. Taking it to the woods and loading it with firewood, moving dirt around the property, etc. So I'd expect a little safety margin built in for less than ideal load distribution or overshooting the weight a few hundred pounds.
Bottom line, if you do the math, there is no way this trailer will dump its rated 7300# capacity with its 2500PSI hydraulics with anything less than a 4" bore cylinder.
After I got off the phone with the warranty manager, feeling I got no where, I called and talked to the manager of the whole place. Asked them if they had any engineers on staff that could run the numbers for him and confirm what I am telling them. And confirm that whoever made the decision to go from a 4" cylinder down to a 3" cylinder clearly didnt have an understanding of hydraulics.
This guy seemed alot better to deal with. And was gonna do some checking around and get to the bottom of whats going on, why the switch was made, talk to his "cylinder" guys, etc. He has until 3:00pm today to get back to me. Because he is either going to get me a 4" cylinder I can swap in there, or the trailer is going back for a refund.
A 3x24 cylinder on a 6x12 10k dump is just ridiculous. A lot of MFG use scissor lifts. But just a few I looked at
PJ uses 5x30 on similar
Bimar uses a 4"
Diamond C uses a 3.5 x 30 (with a longer stroke you can get better leverage to still have adequate capacity)
Cam Superline uses a 3.5x36
Load trail uses a 5x15.5 scissor
etc etc. 3" is just too small and I dont think they wanted to hear about it.