munibear:
and a torque converter dont fit in a truck !
just correcting this statement
you mentioned torque converters,nobody else
the opticruise is an automated manual box as are all the other new systems ie i shift,as tronic
jon[/url]
The army have fully automatic allinson gearboxes fitted to their own tank tranporters. Thats a torque converter I think. Thats a bit more than 44t I think you will find.
Airport fire engines also have torque converter gearboxes, with huge engines, for the acceleration, with a pretty heavy lump of water.
I would think about engaging brain before opening mouth (figurativly speaking).
but they dont pull 44 tonnes they are tonkers mate
I have driven a DAF 95, Scammell, MAN and Mercedes SK all fitted with a Torque Converter and all plated over 44 tonnes 
my old DAF 95 fitted with Torque Converter
I once drove an old Scammell Roadtrain with a torque converter, that was plated for 120 tonne.
most dock tugs are built for pulling 90 tonne plus and they arent manual boxes either.
A case of putting something in gear before, well you get the idea 
Wheel Nut:
I once drove an old Scammell Roadtrain with a torque converter, that was plated for 120 tonne.
Like this one but without the extended cab Wheelnut??
Roadtrain fitted with Torque Converter
Another feature of this tractor is it’s torque converter. It’s a ZF WSK-400 unit. The cooler of this converter isn’t as big as that of a WSK-440 and is therefore not visible on the pictures. The cooler is mounted somewhere between the chassis. The torqueconverter gives the truck the ability to tow away such heavy loads without damaging the clutch.
MAN with Torque Converter
munibear:
Well for your info they all have a clutch its just that scania like myself dont trust a machine with no seat in its pants to let it out! and a torque converter dont fit in a truck !
I think we can agree that a Torque Converter does fit in a truck… 
Rikki-UK:
Wheel Nut:
I once drove an old Scammell Roadtrain with a torque converter, that was plated for 120 tonne.Like this one but without the extended cab Wheelnut??
Roadtrain fitted with Torque Converter
Like that one exactly, I was going to buy it to run to Turkey with It was for sale in Britcom at Market Weighton. I wanted a big cab and it had fuel tanks everywhere. I could have bought it for £2500 but I got a Daf 2800 DKSE instead.
It did 48mph flat out up hill and down
Yes Torque converters do fit in trucks 
BUT 
If you look they are all big or ‘Specialist’ trucks not everyday motorway munchers, the boxes are way ,way, way too big to fit in a ‘normal truck’ and the weight disadvantage of a torque converters would be huge,
Some people don’t see the merits of retaining the clutch pedal such as the Opticruise system,
It is down to personal choice at the end of the day, Me personally prefer the clutch pedal where it belongs, for one reason, If you push the clutch you disconnect the drive, no if’s, and’s or but’s, It stops, plain and simple,
You are not relying on electronics etc to stop you
Any fully auto boxes with torque converters are usually fitted to bin wagons fire engine etc for ease of operation and less subject to driver abuse, and do not tend to be maximum weight artics, for reasons of strength and cooling, there may be some ‘normal’ trucks with fully auto torque converter systems but I have not seen one yet!
Discopete:
If you push the clutch you disconnect the drive, no if’s, and’s or but’s, It stops, plain and simple,
we had an 4 series opticruise on demo from scania,it had an air fault which pushed the clutch back up when you were reversing under trailers.
very unnerving i can tell you.
jon
There is a modified valve to prevent that now,
A few 6x2 units do this when lifting the axle up, the truck used the air from the clutch system to lift the axle there by taking the air assistance away from the clutch and pushing your leg back up, because the clutch air assistance and air suspension use the same air circuit.
Very noticeable if lifting the axle whilst shunting in the yard
This fault is nothing to do with the opticruise just so happened to be on the truck you used,It does this with some manual boxes as well
Oh Well nothings perfect, 
A lot of drivers tend to live with this fault rather than mention it, as its a really simple fix, just take one valve off and replace with a newer type, 
Just remember all you scania drivers out there with this fault, tell someone at your next service, we CAN do sometihing about it