3000 pound car traveling 100 mph or 80,000 pound truck traveling 50 mph? or 1,000,000 pound train traveling 10 mph.

Which has the shortest stopping distance? Which would require more force or energy to stop the vehicle in motion? Now using physics not chemistry.

 

who cares? you've had smoking brakes doing it your way I haven't doing it mine,good luck bro.

 

 

You better read your posts, now you are contradicting yourself, what a looser!!! I’m back out....lol

 

My money is on the 200,000 lb. airplane. HEY...wait a minute.... :lol:

 

Have you ever used a torch to to heat up a nut to remove it from a bolt? If you apply the intense heat in intervals the nut will expand faster than the bolt making it easier to remove. In intervals the heat is not intense enough to melt the nut. If you apply a constant less intense heat eventually the nut will melt changing the molecular structure and turning the nut to a liquid. Now what effect does a liquid have on friction? Liquid reduces friction. So what does the constant heat do the break friction material? Its alters the molecular structure by creating a glaze which reduces friction. When the friction is lost or lowered it becomes harder and harder to slow the truck. If the breaks are not cooled you eventually lose you brakes entirely.

Again this is why the DOT recommends stab breaking to avoid glazing or over heating your breaks. Not sure why you can't *get* the concept? It's pretty simple and yeah I have smoked my breaks and more than once. I have never had problem though in a tractor with a jake break pulling a 53' or a 48'. Pulling doubles is different than pulling a long box. The allowable air loss is greater than a single combination and the break lag is greater than a single combination. So what does that tell you? Breaks are not as responsive and you are more likely to smoke them more so than a single combination.

 

Ben, I see that you have not been driving long and I can assure you, like others here have tried to do, that getting on and off the brakes on a downgrade is not good, you will generate more heat by "stabbing" them than by constant applied pressure. I dont post much but this is important enough to say something. Just because the OH dot says so does not make it so. The common practice for years has been to go down a hill in the next lower gear than what you came up with and keep steady pressure on the brakes. If you was to do a poll you would probably find that those that are on and off the binders and the ones that more than likely are smoking them, and a smoking brake is a bad brake. Anyway be safe.

 

The only ones here who will disagree with you is the newer drivers who have been trained by trainers who are also new to the industry.

 

So, what your saying is that when i'm grossing 70k+ rolling down 7% grade for 7 miles with no jake I should just hold a constant pressure on my brakes? That will keep me below the posted speed limit and below the posted 45 mph curves with out losing my brakes?

I can tell you that i won't! Just came across I64 (76k gross) this morning and sitting in Roanoke as I type. The brakes were adjusted by the shop this morning before I left. I tried holding a constant pressure on my brakes and my lead trailer brakes were smoking by the first curve (1.5 miles). I had to stab them hard to get back down to 40mph so I could make the first curve. I used my technique the rest of the way down and never smoked them again. It didn't work! Maybe if I had a bigger motor with a 3 stage jake, holding a constant pressure might work.

 

I'm supposed to take advice from someone that thinks Air will make heated metal hotter? I almost have to laugh at that post because It's a ridiculously stupid thought. :roll:

Oxygen will make a fire burn hotter but doesn't make heated metal hotter. Ever hear of a Air Cooled motor? It isn't Air heated motor, why do you think drivers put cardboard over the radiator in the winter time? because the cooler air cools the engine too much.