Btalmadge Posted March 2, 2014 Share Posted March 2, 2014 How can I manually release air brakes on 1970 mack rs700L Quote Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/ Share on other sites More sharing options...
j hancock Posted March 2, 2014 Share Posted March 2, 2014 From Mack Service Manual.Caging tool can be bought at parts stores. Work safely. 2 Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-235169 Share on other sites More sharing options...
j_martell Posted March 2, 2014 Share Posted March 2, 2014 What he said.....but remember, no parking brakes if they're caged. 2 Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-235175 Share on other sites More sharing options...
thomastractorsvc Posted March 7, 2014 Share Posted March 7, 2014 or brakes for that matter! Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236193 Share on other sites More sharing options...
j_martell Posted March 7, 2014 Share Posted March 7, 2014 Service brakes shoulda still work if the parking side is caged. 2 Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236195 Share on other sites More sharing options...
thomastractorsvc Posted March 7, 2014 Share Posted March 7, 2014 when you cage the brakes you manually release them and mechanically pull the rod into the free/caged position, my experience with caged bakes is once you do that no brakes work on that hub/wheel. Maybe on older pods it was different. Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236236 Share on other sites More sharing options...
j_martell Posted March 8, 2014 Share Posted March 8, 2014 I am reasonably certain that service brakes should still work in the parking side is caged...on modern pots anyway. Can someone with more knowledge "yes or no" this? 1 Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236273 Share on other sites More sharing options...
KECorbin22 Posted March 8, 2014 Share Posted March 8, 2014 The park side is independent of the service side, the rod does not completely go thru to service side. Look at a piggy back set-up. there are two separate rods within a maxi brake. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236277 Share on other sites More sharing options...
thomastractorsvc Posted March 8, 2014 Share Posted March 8, 2014 Maybe the service side will work, when I have caged them it was to release the wheel/hub and move it to the shop not to rely on it for stopping. When I have taken the ASE Air Brake test and recert tests I don't ever remember it being a question. I suppose that is why I commented the way I did. I have a spring brake chamber laying in the shop I will cage it and put air to the service side and see if it moves. Let you know. Might make a video of it if I remember to. Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236283 Share on other sites More sharing options...
theakerstwo Posted March 8, 2014 Share Posted March 8, 2014 caging the brakes will not affect the service side. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236284 Share on other sites More sharing options...
thomastractorsvc Posted March 9, 2014 Share Posted March 9, 2014 While I was waiting on my wife this afternoon, I was thinking about this and years ago I can remember vaguely changing the diaphragms, I guess I never paid enough attention to it and weather the breaks worked, I was always taught that the brake was disabled when caged. I guess I learned something that I should have already known. Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236462 Share on other sites More sharing options...
theakerstwo Posted March 9, 2014 Share Posted March 9, 2014 Non of us stop learning and I learn something new ever time I read the forums here. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/34868-maxies/#findComment-236476 Share on other sites More sharing options...
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