Is it pretty easy on your 2021 t800 I had 07 kw t600 sweet truck but unfortunately I had to sell it cause it fuked up knee after pressing 100s of thousands time in 10 years
most European trucks use that system and it is called servo clutch, Scania, Renault, Actros, Man, Volvo and Iveco have been using this for a very long time
To be honest I can not imagine how to control a 800Nm (corresponds to about 150kW/1800rpm) or above rated clutch directly, without any form of engine power assist. By the way the "most modern" truck above 7 tons without any power (essentially air) assist I've ever met was Praga V3S from early 50's and this video was a surprise for me it was even feasible to make the clutch work without... All later, include busses, used air assist, where you practically can not operate the clutch without the air pressure at all. I have even heard a story from my dad about the servo valve being faulty on an (Ikarus 280, power train was some MAN license from the 60's or so), so the clutch had to be operated by just a brute force. Well, the seal in the master cylinder gave up to the pressure and he had to get moving on a starter and then "float shift" in order to get the bus "home" (of course, without passengers)...
i dont recall seeing an air assist clutch in any of my trucks. i have only had a few volvos and they were 2005 - 2003. i agree, in traffic that would be the bees knees!
Well, in Europe from about 6 heavy truck or bus types with a manual transmission designed along 50's till now, I'm familiar with to this extend, all used essentially the same system. And based on what was in the taught in the driver traning course, my impression was none above about 7.5 ton existed without such system...
I drive a 06 VNL...same thing, just keep the fluid level full. My fluid level got low, and got that hard pedal too. I read somewhere too that if you think you don't have quite enough pedal free play, that's almost normal.
2016 Pete has one(slave cylinder) it started releasing air out of vent I couldn't build enough pressure so I pinched off air. So do you know what is wrong?
Hey dude, the European truck manufacturers have installed air assisted hydraulic clutch pedals in all heavy diesel trucks together with fully synchronized transmissions since the 1960s ! My opinion on the American trucks has been censored in my previous comment. So much for the freedom of speech in today’s PC world ! Put it this way, the American truck engineering is at least 50 years behind the Europeans. PS, the Pete 379 still has a mechanical rod linkage clutch pedal which exits the cab through a literal hole cut in the floor of the cab. Can’t get more ancient than that without going back to horse and buggy technology !
My 2031 KW t880 rotator has air assisted - Trying to figure out how to adjust it. Was told to pump it to adjust it. I’ve been doing that but it’s not adjusting. Anyone know how to adjust air assisted KW
I have 2008 Mack CHU 613. Clutch is stiff with air in it. So when I press it it is hard but all sudden it just goes really easy. I don't know what could be the problem.
Hey CHase I got a 2012 Volvo VNL 670 I’m having similar issues clutch pedal is very hard I change the clutch same issue its hard to get it in gear when the truck is warmed up ...I change the master cylinder and slave cylinder I’m still having the same issue whenever I pull up to the stop sign I have to downshift because it’s hard to get into first and second gear if you have any idea let me kno plz bud
this clutch system isn't limited to volvo, I had it on my 01 379, 2010 386, 2013 388 and is on my current 2021 w990 and I love it
We have a 2021 t800 kenworth and it has à air assist clutch dont know for other trucks but kenworth has the air clutch systemes
My 2014 Pete 579 has one.
Is it pretty easy on your 2021 t800 I had 07 kw t600 sweet truck but unfortunately I had to sell it cause it fuked up knee after pressing 100s of thousands time in 10 years
most European trucks use that system and it is called servo clutch, Scania, Renault, Actros, Man, Volvo and Iveco have been using this for a very long time
I like it. It greatly helps the old leg out. lol
I have seen even some tractors using that
To be honest I can not imagine how to control a 800Nm (corresponds to about 150kW/1800rpm) or above rated clutch directly, without any form of engine power assist.
By the way the "most modern" truck above 7 tons without any power (essentially air) assist I've ever met was Praga V3S from early 50's and this video was a surprise for me it was even feasible to make the clutch work without... All later, include busses, used air assist, where you practically can not operate the clutch without the air pressure at all. I have even heard a story from my dad about the servo valve being faulty on an (Ikarus 280, power train was some MAN license from the 60's or so), so the clutch had to be operated by just a brute force. Well, the seal in the master cylinder gave up to the pressure and he had to get moving on a starter and then "float shift" in order to get the bus "home" (of course, without passengers)...
i dont recall seeing an air assist clutch in any of my trucks. i have only had a few volvos and they were 2005 - 2003. i agree, in traffic that would be the bees knees!
Yep, pretty nifty design they got. I figured you might have ran across this on something another with all the trucks you get to work on.
Well, in Europe from about 6 heavy truck or bus types with a manual transmission designed along 50's till now, I'm familiar with to this extend, all used essentially the same system. And based on what was in the taught in the driver traning course, my impression was none above about 7.5 ton existed without such system...
Wow, didn't know it had been around that long, I like it. Much more driver friendly not having to stand on the clutch pedal.
I drive a 06 VNL...same thing, just keep the fluid level full. My fluid level got low, and got that hard pedal too. I read somewhere too that if you think you don't have quite enough pedal free play, that's almost normal.
I have a 98 Volvo with that.
Thank you
2014 kw t680 has it
Same with my 14 Pete 579.
my 2017 international prostar has this type of cylinder clutch
2016 Pete has one(slave cylinder) it started releasing air out of vent I couldn't build enough pressure so I pinched off air. So do you know what is wrong?
Hey dude, the European truck manufacturers have installed air assisted hydraulic clutch pedals in all heavy diesel trucks together with fully synchronized transmissions since the 1960s !
My opinion on the American trucks has been censored in my previous comment. So much for the freedom of speech in today’s PC world ! Put it this way, the American truck engineering is at least 50 years behind the Europeans.
PS, the Pete 379 still has a mechanical rod linkage clutch pedal which exits the cab through a literal hole cut in the floor of the cab. Can’t get more ancient than that without going back to horse and buggy technology !
Mack (owned by Volvo) 2006 Granite is air assist
I've never had the air assist. My 670 d12 is an ezpedal manual adjust
My 2031 KW t880 rotator has air assisted - Trying to figure out how to adjust it. Was told to pump it to adjust it. I’ve been doing that but it’s not adjusting. Anyone know how to adjust air assisted KW
YOU don’t now how something works? Wow! 😳😂👍🏼
hard clutch pedal on volvo fm12????
Need help with trailer kingpin plate and cross member repair? Any repair shop l can take to for repair?
I have 2008 Mack CHU 613. Clutch is stiff with air in it. So when I press it it is hard but all sudden it just goes really easy. I don't know what could be the problem.
Interesting, didn’t know this.
In international trucks since 2010
how do i pugar a hydraulic system clutch from a Volvo 1997
Was your auto shit a Meritor 12 speed?
Yep
Hey CHase I got a 2012 Volvo VNL 670 I’m having similar issues clutch pedal is very hard I change the clutch same issue its hard to get it in gear when the truck is warmed up ...I change the master cylinder and slave cylinder I’m still having the same issue whenever I pull up to the stop sign I have to downshift because it’s hard to get into first and second gear if you have any idea let me kno plz bud
Only thing I can think is check the air pressure going to the slave cylinder, make sure clutch is properly adjusted and check the clutch brake...
chase5726 there no air line going to it .. plus it is a automatic clutch
Merci c'est bon
579 pete come standad with air asist
What's a clutch pedal? Haha
Yes other trucks have assisted clutches.
So much mashing 😅