Downshift, use the Jake-brake if applicable, DO NOT pump the brakes, My Version of the answer: Safe operation of a truck on a steep grade for a good operator requires planning. 1st Pay attention to the signs about steep grades 6% and more are usually marked. 2nd Learn what gear is most appropriate for similar grades. allways Use max safe Retarder or "Jake" 3rd get into that gear before you top over 4th if you chose to use your brakes going down the hill do not "ride' them use at a low application pressure (20 psi max) for 10 seconds in 1 minute. Less application time is better as it means less brake wear. Caution and calm fore thought is what you need
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My spin on this... if you don't know how to do this, you need to get some training. Period. You think you're going to have your jakes on full blast coming down Vail Pass when the roadway is iced over? THINK AGAIN. That's all fine and dandy on a dry road, but you DO NOT want to use a retarder on slick roads. That's when you swallow your pride, gear WAY down, and ride it out nice and easy.
That aside, you need to know your truck. Say the speed limit on a downgrade is 45 MPH, and your truck typically has you in 7th gear at that speed... well, you might be able to get away with going down the hill in 7th while you're empty, but try that at 80,000, and you're going to be like these dolts from CR England I see headed down Floyd Hill or Eisenhower-Johnson with their brakes smoking like a Grateful Dead concert. So you gear down enough to compensate for the weight, and, guess what? You'll be going below that posted speed limit. Even in a governed truck, you're not going to lose that much time. Will you hear trash talk on the CB about it? Occasionally, but the real drivers - the true professionals - won't be the ones doing it. They'll be these know-nothings who became trainers at Swift after six months because they miraculously didn't kill someone - don't take them to heart. I've had them do the same to me, but what does matter what someone in an empty five axle and who obviously doesn't know any better says? I'm typically grossing 120 - 160k, and I've run combinations in the past which have weighed more than that.
Above all - swallow your pride. Just because you see Billy Bigrigger taking a 45 MPH grade at 60 MPH doesn't mean you have to try it.
Remember - it's your career and your life out there - take care of it. Don't throw it away because you're trying to impress some bull hauler or CB Rambo.
the slave on this truck has no bleeder, you simply need to pump the pedal about 500 times until you get some clutch movment. Then i recomend parking the truck on a steep grade and pump some more.
Steep downgrades, when you need it to control your descent.
Stability traction and adhesion
The big truck went up the steep hill. The garbage truck has many flies. "There is a truck with the lays logo on it," Billy said.
If its carbureted might be forcing to much fuel flooding out
Put pressure on, let off of it, reapply pressure on the brake as needed, let off of it again. You never ride your brakes down a hill - you'll burn them out. If you start seeing smoke coming from your wheels during and/or immediately after braking, you need to stop that truck completely, and sit long enough to let the brakes cool down, unless you somehow think the idea of having to use an escape ramp is thrilling.
The truck's kinetic energy is increasing as it gains speed downhill due to its motion. The gravitational potential energy of the truck is being converted into kinetic energy as it moves downhill, with the conversion being more pronounced the steeper the incline.
It's a warning to truck drivers of a steep grade ahead, and gives an advisory speed for which they should go down that grade. Advisory signs are applicable to all traffic, and that particular sign isn't limited just to Class 6 - 8 trucks - if you lose your brakes in a pickup truck and wind up in an accident because you failed to heed that advisory and adjust your speed going down the hill in order to ensure that you didn't burn out your brakes, you can be held liable, all the same.
Depends on the grade, 20mph??I have been in tractor trailers going through PA and the speed of the truck over took the speed the motor/ no boost and the engine went silent. All you could he is the roar of the tires.
It was terrifying to watch the huge truck slide on the slippery road and go rolling down the steep embankment.
What you refer to as George overdrive is known in the trucking industry as Georgia overdrive. It is going downhill with your truck out of gear. This is gone down grades to allow the truck to accelerate beyond the normal top speed of the engine in to gear without damaging the engine.
For a good hobby grade truck look to spend about 150 and up for electric and 300 and up for nitro