Beats Me To Deaf!!????

[JRheams]

I have read several other threads dealing with jarring while pulling a 5'er, but I don't have one and I'm getting beat to deaf. I have a 27 flatbed with 5 ft dove gooseneck. I mostly haul logs on the trailer. I have a two racks that support my logs. This past weekend I hauled 12. 5 tons of logs on the trailer and it rode great. My problem comes in to play when hauling equipment. It doesn't matter if I'm hauling a 15,000 lb backhoe or a 8,000 forklift, the jarring is enough to give me neck pains. I have tried everything from driving the equipment half way between trailer axles and gooseneck so that I can put alot of weight in truck and I have drove them on top of the dovetail making very very tongue light. I can't seem to find the right spot to put it. I don't think it's bouncing up & down on the truck, I think it's jarring forward and backward. I recieved some great advice on my previous threads so I knew y'all would be the right one's to ask.

 

[mike r]

I seem to have a similar problem although my trailer is smaller than yours. I've come to the conclusion that it is a combination of tires wearing abnormally that when hauling light on a heavy GVW trailer simply throw the trailer into the air when being towed. Placement of equipment on the trailer does little to remedy the condition and often affects steering and braking. I'm with you on this one. Mike:{

 

[bmoeller]

This is one option.



http://www.etrailer.com/Merchant2/m...tore_Code=E&Product_Code=CG&Category_Code=cab

 

[Twisted6]

Im new here but i have a lot of experience with the beating your talking about. I found it has to do with your pin weight , suspension bottoming out and how you have loaded your load. I had a 12000lb bobcat on my 32ft goose. and had it one foot to far foward and the beating began. When i moved it back i cruised like there was nothing on the trailer. hth

 

[bmoeller]

Unfortunantely, moving the load around to shift weight, when possible, won't always cure the problem. I've pulled a few trailers that will jerk you around, no matter what. Both goose and tag. Sometimes, it is just the way the trailer is set-up/designed.

 

[clem]

I think what you have is called Free Way Buck. It comes from the spacing of the frost strips in the road bed and the spacing between your wheels. Every time a tire runs over the high place in the road that end of the truck or trailer wants to go up,shifting the weight to the other end. So the whole thing starts rocking end to end. Now you have Free Way Buck the faster you go the worst it gets. This has broken a few hitchs and other parts. I-10 was bad about this. There is no real answer for this problem. The road gets beat up with the big trucks that is a fact. I have installed Mor/ryde on my truck and trailer along with a Mor/ryde pin box on our 5th wheel. this all has helped a lot. Things stay in place in the trailer,that makes the Wife HAPPY. The truck rides better. Most of the Free Way Buck is gone. the rig still goes up and down,but we don't get that kick in your back and neck that just kills you. One thing we got when the Mor/ryde pin box was installed. No more of that jerking coming to a hard stop when the ABS pulses the truck brakes. the pin box takes that out. Wish you luck Clem

 

[GCross]

If you can't control this with the above suggestions, you might consider an air ride seat. These have an air cushion for the up/down motion and also, and more importantly for your problem, they have a back and forth motion suppressor. When I was driving semi's in the 70's I would have been beat to a pulp without these seats.

 

[NIsaacs]

Beats Me To Deaf????

JRheams,



When you haul heavy short concetrated loads, like your backhoe or forklift, you will get trailer frame flex. When the frame bows down it's kinda gentle, but when it straightens out, on the rebound up, it's like a chain jerk. When you haul logs, the weight is spread out over a longer portion of your trailer, this means less frame flex or smoother ride. Tandem axle trailers with equalizers on the spring suspension will also compound the problem. Axle suspensions independent of each other pull the smothest. The down side to this type is the trailer must be kept more level.





"IF IT AIN'T CUMMINS POWERED, IT AIN'T A TRUCK"





"NICK"

 

[tgrfan2]

I've got a feeling it is your pin weight too. My gooseneck was a 24' triaxle. I always tried to load it so all three axles were equally loaded. But when loads were out of balance the ride really suffered. It could also be that the pin weight is just at the point where the overloads make the ride harsh. A friends 2003 HO 3500 rebounds on bridges and rough concrete with his fiver at 2700# pin wgt because the truck is just barely on the overloads. We are thinking about trashing the helpers and putting air bags on it.

 

[amillstream]

For me, it always goes away when I get the equipment placed just right. Get it too far forward and it'll beat the crap out of me.

 

[JRheams]

Thanks guys for all your advice.

 

[SRehberg]

I just removed my factory camper overloads and added the Firestone Ride Rite air bags, for just the reason stated earlier. My overloads were in contact with one stop (front) but just clearing the rear stop, so every bump it would make contact, just jarring the something out of me. It helped a lot, but I needed to soften the ride even more, so I have ordered a Bostrom air ride seat that will fit easily into the cab of my 2500. I visited one of the larger Freightliner facilities where they had the seats on display, but that was after checking out the different mfg's on the internet. Try Bostrom, Knoedler, National, etc.