Massive Understeer With Default DAF XF105

[Vorden]

I been using the DAF for well over a year and I only started having this problem with the 1.20 update.

[_DC_]

The real question i ask myself is, why hasn't anyone tried moving the 5th wheel on the (most) affected trucks?
I know it requires Blender and all that but at least someone should give it a try?

And what about to move it just "virtually" by editing some file? is it possible or you must do it graphically as well? because, talking about graphics, i think there's no much room for movements, especially if you drive with some trailers.

[Cadde]

The hookup point is defined in the model. Not in a definition file.
And if that doesn't work due to visual collisions one might also need to move the point on the trailers?
But clearly, the fifth wheel is located in the wrong spot if the trailer acts as a lever on the truck... no?

[CristianoH125]

With one of my old XF e6 i Cant drive with 6x2 taglift/boogie the truck just wont stear and its caused i Think because im still using the first chassi scs did in 1.17 i Think scs stretched the 6xx chassi and thats why there is a bug on ther sideskirts they were made for the short one, they really need to recheck the lift axles fizics and animations

[yosimarpusma]

I also have problems with the DAF XF 6x4 , volvo FH16 CLASSIC 6X4 , scania R 6x4 and Scania streamline 6x4

[_DC_]

The hookup point is defined in the model. Not in a definition file.
And if that doesn't work due to visual collisions one might also need to move the point on the trailers?
But clearly, the fifth wheel is located in the wrong spot if the trailer acts as a lever on the truck... no?

I really don't know, and sadly atm i don't have much freetime to modify models. But, waiting for an official fix i will try your solutions
Watching my Scania 6x2/4 the 5th wheel seems in the "right" position, maybe tomorrow i will post a screen.

[Cadde]

The fifth wheel should be right between the two rear axles when the last axle is down. Otherwise it should be forward of the middle axle.
At no point should there be a seesaw effect on the truck.
If the fifth wheel is as far forward as it goes before the trailer hits the cabin then one can adjust the pin on the trailer IRL as far as i know.

[_DC_]

Thank you for the informations man.

[_DC_]

This is my situation (sorry for dark shots but it's barely night):
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The 5th wheel seems to be in the right position but..i can barely drive with my 35t load..understeer in every turn, and moreover i don't have room for moving things.
One question: these trailer black "supports" (dunno the right english term) are "collidable"? maybe they're too much near the tractor and, during turns they block the rotation?
thank you in advance.

[Cadde]

The tag axle is too far up. This has been said before, there's just not enough spring in the tag axle.
The problem would be fixed by bringing the 5th wheel over and beyond the middle axle.

Don't know about collision though. But the problem occurs with all trailers as far as i know if their weight is too much for the tag axle.