cxn613 Posted October 11, 2010 Share Posted October 11, 2010 We have already replaced the original air cylinder last winter, now the new one is starting to "stiffen up". Anybody else have problems? It makes it difficult to adjust pedal free play with the cylinder not acting properly. Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/ Share on other sites More sharing options...
rhasler Posted October 11, 2010 Share Posted October 11, 2010 We have already replaced the original air cylinder last winter, now the new one is starting to "stiffen up". Anybody else have problems? It makes it difficult to adjust pedal free play with the cylinder not acting properly.There are parts available to change it over to the standard type clutch cable. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65127 Share on other sites More sharing options...
fjh Posted October 11, 2010 Share Posted October 11, 2010 There are parts available to change it over to the standard type clutch cable.Highly recommended I might add! On the newer engines these have caused a lot of greif!These rarly come adjusted correctly from the factory They tend to take out the clutch brake which then wipes out the sensor on the fly wheel housing two or three times before you get all the peices .The sensor is Not a nice thing to change.Funny thing is they blame the clutch brake when the real problem is the clutch adjustment.Delete the air doins and get back to the real clutch cable! Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65135 Share on other sites More sharing options...
9speed Posted October 12, 2010 Share Posted October 12, 2010 The conversion kit is cheaper than the parts to fix the air-assist (OEM) set-up Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65217 Share on other sites More sharing options...
cxn613 Posted October 12, 2010 Author Share Posted October 12, 2010 Highly recommended I might add! On the newer engines these have caused a lot of greif!These rarly come adjusted correctly from the factory They tend to take out the clutch brake which then wipes out the sensor on the fly wheel housing two or three times before you get all the peices .The sensor is Not a nice thing to change.Funny thing is they blame the clutch brake when the real problem is the clutch adjustment.Delete the air doins and get back to the real clutch cable!Thanks for the reply. How much is the conversion kit and what is involved with making this conversion? Talked to our local Mack dealer and the service dept. hadn't heard of this kit. I gave them the service bullitan number today now im waiting for a return phone call from them. Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65238 Share on other sites More sharing options...
theakerstwo Posted October 13, 2010 Share Posted October 13, 2010 Highly recommended I might add! On the newer engines these have caused a lot of greif!These rarly come adjusted correctly from the factory They tend to take out the clutch brake which then wipes out the sensor on the fly wheel housing two or three times before you get all the peices .The sensor is Not a nice thing to change.Funny thing is they blame the clutch brake when the real problem is the clutch adjustment.Delete the air doins and get back to the real clutch cable!Years ago on the old B models and early R with the air duplex it had a air assist and it would do same thing very offten. It was ok if some one owned the truck and knew how to adjust. But problem was you did not have a good feel of the free travel as in a manaul link. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65240 Share on other sites More sharing options...
Mackpro Posted October 13, 2010 Share Posted October 13, 2010 I was looking at a brand new 2011 CXU and GU on our lot and neither one had the air clutch assist on them. Guess the boss man ordered them without. Smart move. Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65242 Share on other sites More sharing options...
rhasler Posted October 13, 2010 Share Posted October 13, 2010 I was looking at a brand new 2011 CXU and GU on our lot and neither one had the air clutch assist on them. Guess the boss man ordered them without. Smart move.Our new trucks have been ordered without air assist also. Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-65244 Share on other sites More sharing options...
monster1 Posted October 30, 2012 Share Posted October 30, 2012 Have 2012 MACK CXU613 Pinnacle with air assist clutch with 62,000 miles & 1 year of use. Had clutch adjusted 3 times by dealer so far. Each time you go about 2,000 miles & you find the play is out of the clutch. On the 3rd time they pulled trans & put in new clutch brake (& requested 2 piece clutch brake) as they said lining was worn...& not warranty, but "driver error"~have driven MACKs for 12 years, and never had a clutch problem like this new truck!!! Has anyone else had this experience? I'd found the info on after market conversion kit on this site, & that was helpful to me. Actually told dealer to look into this kit as they had no clue. Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-143731 Share on other sites More sharing options...
Dzlbudman Posted October 30, 2012 Share Posted October 30, 2012 Check the breather on the Air Assist Clutch. Tends to get clogged and causes all sorts of problems Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-143786 Share on other sites More sharing options...
1965 Posted October 27, 2016 Share Posted October 27, 2016 Looking for the part # for this kit; if anybody knows thanks Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-350124 Share on other sites More sharing options...
fjh Posted October 31, 2016 Share Posted October 31, 2016 On 10/30/2012 at 3:50 PM, Dzlbudman said: Check the breather on the Air Assist Clutch. Tends to get clogged and causes all sorts of problems Get rid of the air asist an solve the problem! fixed Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-350534 Share on other sites More sharing options...
Rsc1717 Posted November 2, 2022 Share Posted November 2, 2022 Does anybody know the parts needed for this kit to convert for air clutch to cable . Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-514238 Share on other sites More sharing options...
Popular Post Mackpro Posted November 2, 2022 Popular Post Share Posted November 2, 2022 https://static.nhtsa.gov/odi/tsbs/2013/SB-10054150-5440.pdf 3 Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-514241 Share on other sites More sharing options...
Stoshu Posted December 31, 2022 Share Posted December 31, 2022 Dealer knew nothing about conversion kit. I gave them the bulletin number and ordered it. Went in for clutch adjustment found out clutch put in ten months ago was wrong clutch! Anyone else have dealer nightmares? I've had a few. Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-519383 Share on other sites More sharing options...
Popular Post Mackpro Posted December 31, 2022 Popular Post Share Posted December 31, 2022 (edited) 18 hours ago, Stoshu said: Dealer knew nothing about conversion kit. I gave them the bulletin number and ordered it. Went in for clutch adjustment found out clutch put in ten months ago was wrong clutch! Anyone else have dealer nightmares? I've had a few. Unless your dealership parts guys have been there a long time , this is a common issue. Mainly because Volvo/Mack corporate likes to move and hide and erase service/parts bulletins at random times without notice. So unless the parts/service guys are exploring Dealer Portal 24/7. It was hard to keep up . The clutch cable conversion bulletin is not in the parts look up side, it’s buried in the old E-media section of Dealer Portal. The people that Volvo/Mack get to make and design their dealership software ( Dealer Portal) know nothing of the difference between the service and parts. The worst was our on-line training and testing. Our district service manager would get mad because we we’re always behind on our training and testing. We explained that the website would totally change the format every 2-3 years and no one ever could keep up on how to navigate the system. He reluctantly agreed. Edited December 31, 2022 by Mackpro 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-519458 Share on other sites More sharing options...
Popular Post fjh Posted January 1, 2023 Popular Post Share Posted January 1, 2023 Yup it’s a constant battle! This Volvo outfit is organized like a shit fight no foresight ! The parts system sucks you got to be a guru to run it! You need a degree if want to run it! And still can’t find stuff. There was a reason for prefixes in the part system the Mack system was way superior to the current Volvo rubish ! Even us dumb mechanics could find parts with the old system! 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/16081-cxu-air-assist-clutch/#findComment-519471 Share on other sites More sharing options...
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