Randy mckinney Posted December 17, 2013 Share Posted December 17, 2013 I set my brakes too have one inch of throw locks work slack adj are all new my driver runs truck about two weeks and brakes are about two to two an a half inches of throw i this truck sees about 20,000 miles a year i have run this truck befor for two years in a row touched the brakes up once been dot ed 3 times an never had a brake out of adj my question is does my driver need sent down the road walkin or is there something posably wrong with the brakes Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/ Share on other sites More sharing options...
gearhead204 Posted December 17, 2013 Share Posted December 17, 2013 did the same length slacks get used? clevis pins in same hole? was lining changed ? if these are ok tail your driver for a few miles if they can burn up brakes that fast, shouldn't take too many miles to find out if rickey racer is at the wheel Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221823 Share on other sites More sharing options...
Randy mckinney Posted December 17, 2013 Author Share Posted December 17, 2013 Slacks are same rear drive had new lining anb drums in october every day wen trucks comes in it has a smell of hot brakes Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221826 Share on other sites More sharing options...
masterwelder Posted December 17, 2013 Share Posted December 17, 2013 Dose the truck have a jake or eng brake? Mabe he is not using it? Or he may just like to drive it hard if it's coming in smelling like brakes? Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221829 Share on other sites More sharing options...
gearhead204 Posted December 17, 2013 Share Posted December 17, 2013 are drums heat checked? excessive brake dust in shoes? what vocation is truck used in? other drivers saying anything ? Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221831 Share on other sites More sharing options...
Randy mckinney Posted December 17, 2013 Author Share Posted December 17, 2013 Yes it does have engine brake yes drums were heat cracked replaced rear drive drums and lining. Front drive is getting new drums and lining in jan. truck is a bulk truck in the mining industry could it be he is over running the brakes from speed braking to late not using engine brake and possibly not dropping lift axle which has brakes and never need set up Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221835 Share on other sites More sharing options...
Randy mckinney Posted December 17, 2013 Author Share Posted December 17, 2013 Im the other driver and i have no complants about brakesright gear with engine brake i dont hardly use the brakes Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221836 Share on other sites More sharing options...
masterwelder Posted December 17, 2013 Share Posted December 17, 2013 It looks like everything is pointing to hard use of the brakes. Was this driver ever shown how to drive with the best interest of the truck in mind- or more importantly his safety and the safety of others? Eventually he will run out of brakes or luck or both, and you're name is on the door. Time to have a chat. Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-221855 Share on other sites More sharing options...
rsb502 Posted December 19, 2013 Share Posted December 19, 2013 If he's coming in to the shop in the afternoon running empty with brakes out of adjustment and hot enough to smell he'd already be gone with me. I don't think I've ever gotten brakes that hot empty, loaded yes and when I started driving I only thought the throttle had two positions, wide open and idle! Damn I've changed over the last 19 or so years, hell I don't even know how fast my work truck will go, 68 works awful good. I think having only been a driver I would still be a little hard on trucks but having to fix what broke and being there to see the damage and the brake and engine wear changes your outlook, owning the truck and paying for it changes it a lot more. 2 Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-222123 Share on other sites More sharing options...
Mack Doctor Jr. Posted December 19, 2013 Share Posted December 19, 2013 He may be down shifting at all and just throwing it in neutral and stopping. I've seen lots of guys do this cause it's just a pain to move a stick a few time! Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-222162 Share on other sites More sharing options...
Randy mckinney Posted December 20, 2013 Author Share Posted December 20, 2013 Looks like some changes will be made jan. first Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-222258 Share on other sites More sharing options...
b61mack Posted December 20, 2013 Share Posted December 20, 2013 When ever i adjust manual slacks i tighten them all the way and back off 1/4 of a turn. Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-222315 Share on other sites More sharing options...
r686st Posted December 20, 2013 Share Posted December 20, 2013 b61mack I do the same thing when adjusting mine and it gives me about 3/4" of rod movement. Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-222319 Share on other sites More sharing options...
Mack Doctor Jr. Posted December 21, 2013 Share Posted December 21, 2013 I back them off a half. Letting the s cam move a hair more keeping the off of the cam between brake jobs. I notice less flat spotting and less chance if the 20 idiot drivers stabbing the brakes and hanging and dragging. I think that little more movement helps in cold weather cause the cam is cleaner for more rolling movement when the try freeze down. I've seen times where tipping the s cam releases the froze down brakes. Just .02 Quote Link to comment https://www.bigmacktrucks.com/topic/33918-brakes/#findComment-222407 Share on other sites More sharing options...
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