Holy, wish this video was shown to me in 2009 when I got my Class 3 license (Canada). It would have helped so much to understand the technical/theory side of how the transmission worked. It was a Sterling with a 18 speed transmission, and im sure a coffee grinder grinds less than that transmission had to endure with me behind the wheel. Of course I was just told to get in the driver seat and drive it without understanding what the splitter was or what progressive shifting is. I never even thought to ask to see the operator manual as that would have helped as well. I passed my road test but was grateful I never had to use it as I got a job operating a Caterpillar 797 with a fully automatic transmission right away.
The guy says a 13 speed shifts like a 10 speed but that's not correct. The "low" or "1" position on a 13 speed is used in the low range only 10 speed has first and sixth in that spot.
I use the cheater gear (lo position in the high range) every time . But it's exactly the same gear ratio as a 4th . It's useful because you can split it too.
I don't want to be naughty! In my opinion, he who isn't able to use such a gearbox intuitively , with recommended precautions of course, won't get this discussion. The other one doesn't need it. Those discussions often bring more confusion than enlightement.
Yeah, because its pretty easy to remember, sweet candy is between 11 and 1300 rpm if you can shift fast and smooth and between 1300 and 1500 if you wanna take it slow between going to neutral and putting it in gear
Nothing wrong with putting gear in neutral and then the spliter low or high and then to ur desired gear. Smooth shifting with no grind or lack of powrr etc. Your transmission and clutch will thank you.
6 years later, but if anyone's curious it's because in the 1990s Eaton redesigned completely how the splitting section works with the RTLO series. It makes driving the newer transmissions easier, shifts quicker, and holds up better.
Answer me one question, please. If I cruise 1500 rpm, let off the gas, clutch in neutral and hold clutch depressed: what will slow down faster - flywheel or input shaft of gearbox? If after one second pause engine rpm became 1200 rpm, what input shaft rpm would be - more or less?
It would depend on whether you were upshifting or downshifting. And the angle of the terrain you're traversing at the time. a. A levered upshift (whole gear) on an incline is going to engage at a very low rpm range, somewhere in 700-1000. b. A levered downshift on a decline means the gear will not engage unless the RPMs are high. You'll have to press the accelerator to spike up the RPMs. This can become dangerous if the truck is already accelerating in neutral down the hill. *Because the accelerator will not let you exceed 2000 RPM.* If the highest gear (ie. 8H) is the one that needs to engage and the gearbox has a high differential ratio then usually there's no choice but to press the friction brakes to slow the truck down. And then trying to catch the highest gear from 2000 RPM downward. If that's not possible because the friction brakes are too worn down, then start heading to a truck sand trap.
These guys from the office who got their class one CDL and never took a working trip in their life are funny to watch. They really know nothing about truck driving. I'd love to take them in my truck and show them how a 48 year veteran long haul driver really shifts a 13 speed. If they don't want to come and learn, I have videos on this. Bottom line. Working in the office and reading a book does NOT make anybody an expert on shifting a manual truck.
