Hook n ladder 1 Posted September 1, 2017 Share Posted September 1, 2017 I put a new clutch brake in. Didn't work very well. Did adjust the clutch. Went from about a half inch free play to 2 inches. First adjustment in 2 years. The clutch brake still not working that well. Should I adjust the clutch more? I didn't think you wanted more than 2 inches of free play on the clutch pedal. Its an eaton/fuller 10 speed in a Ch613 Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/ Share on other sites More sharing options...
theakerstwo Posted September 1, 2017 Share Posted September 1, 2017 Start over and start with adjusting the clutch brake to one inch and thats done with the linkage.Then set the pressure plate to were you have maybe one and a half of free play.Now you have two inchs of brake and if you have any free play at the top that means your clutch is not getting enough release travel to stop the disc from turning and the clutch brake will only burn up if the clutch is not releasing.The brake is not what releases the disc but will stop the from turning after they are released. Do your self a favor and forget what you now under stand and what your going to heard on the radio and try this.If it dont work you still dont owe any one. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378718 Share on other sites More sharing options...
fjh Posted September 1, 2017 Share Posted September 1, 2017 Yup Glenn is correct ! With the exception of VOLVO OR anything else with A Hydraulic operated clutch! If there anyone else Think Freightliner might use that crap too ? Everything with a linkage or a cable will require that you adjust the linkage to Get the clutch brake set correctly FIRST Then set the inside to your desired height of engagement with the internal ring! Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378736 Share on other sites More sharing options...
blackdog2 Posted September 1, 2017 Share Posted September 1, 2017 If its a mack there is x-eternal adjustment but i seen people brake it. Quote Ed Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378742 Share on other sites More sharing options...
Hook n ladder 1 Posted September 2, 2017 Author Share Posted September 2, 2017 Glenn should I "un adjust" the pressure plate back to where it was? Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378759 Share on other sites More sharing options...
theakerstwo Posted September 2, 2017 Share Posted September 2, 2017 Set the clutch brake first and check it and then adjust the pressure plate to get a 1 1/2 free play on top. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378762 Share on other sites More sharing options...
Hook n ladder 1 Posted September 3, 2017 Author Share Posted September 3, 2017 Ok. The funny thing though is after I adjusted the pressure plate last week now theres a low or deep sounding vibration at idle. Is that a coincidence or did my adjusting cause that? Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378809 Share on other sites More sharing options...
Hook n ladder 1 Posted September 3, 2017 Author Share Posted September 3, 2017 I also saw a youtube vid...the guy said the clutch brake will not work if the clutch is not greased. Is that true? Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378810 Share on other sites More sharing options...
Popular Post Mack Technician Posted September 3, 2017 Popular Post Share Posted September 3, 2017 Saw a youtube vid.... half boy/half monkey. Probably the same guy. Some would argue grease has positive affect......don't give more than "A" pump. 2 1 Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378816 Share on other sites More sharing options...
Hook n ladder 1 Posted September 3, 2017 Author Share Posted September 3, 2017 Do I grease all 4 fittings or is the closet one good enough? Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378847 Share on other sites More sharing options...
Hook n ladder 1 Posted September 3, 2017 Author Share Posted September 3, 2017 If I make an attempt to adjust the linkage what exactly am I doing? How do I do it? Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378850 Share on other sites More sharing options...
fjh Posted September 4, 2017 Share Posted September 4, 2017 Saw a youtube vid.... half boy/half monkey. Probably the same guy. Some would argue grease has positive affect......don't give more than "A" pump. I'm one of those guys ! Grease will not hurt it ! I install the aluminum style brake WITH grease Just so the drivers can't wreck them as fast! set the brake RIGHT on the floor so they have to dig for it Half/ 3/4 inch off the floor max. Agree or disagree ! This has work ed in my favor for he last 30 years ! I Ain't Changin Now ! If it ain't broke Don't Fix it! Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378916 Share on other sites More sharing options...
fjh Posted September 4, 2017 Share Posted September 4, 2017 (edited) If I make an attempt to adjust the linkage what exactly am I doing? How do I do it? example western star ! If you shorten the link at the fire wall you will get more brake lengthen you take away! Set this first it never changes except for wear of the brake its self! On Our Macks you have five places to choose from the cable ends ,the cable sheath both ends or the proper one on the trans arm its self if its not seized ! Then wind the ring inside to Get the 1 1/2 free pedal OR = 1/2 inch gap between the clutch brake and the throw out bearing! On MOST Vehicles! It comes down to how you like it set after that I personally like the clutch to start engaging approx half way up So the 1/2 inch gap = 1 1/2 free pedal , May be a A little less than 1/2 inch at the bearing and more like 2 inch at the pedal for my liking ! Edited September 4, 2017 by fjh 2 Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378921 Share on other sites More sharing options...
Mack Technician Posted September 5, 2017 Share Posted September 5, 2017 I think the question is if a clutch brake works without grease applied.......... "the guy said the clutch brake will not work if the clutch is not greased. Is that true?". It will traction without, but smearing a squirt onto it during install is a fine practice, especially with a non-compressible two piece or split. An chronically ungreased throw-out is going to lead to bigger issues than just a dry clutch brake. Quote Link to comment https://www.bigmacktrucks.com/topic/50905-clutch-brake-question/#findComment-378954 Share on other sites More sharing options...
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