Swift making it difficult

I like 13 speeds very well rounded highway transmission i normaly use an 18 or 10 speed nowdays love the 18 hate the 10 lol stupid 10 speeds try to do too much per gear.

 

I think the range shift concept is older than that. May have to dig into when fuller came out with it

 

What's different about the gears? The low inertia transmissions actually make it easier to float. Whether you're double clutching or floating, if you don't time it right, you grind gears. That's because these transmissions don't use a synchronizer gear, and it's up to the driver to time their gear changes when the two shafts are rotating at matching speeds, since there isn't a synchro to bring them to matching speeds for them.
What you're talking about has nothing to do with the clutch - that's from poor shifting on account of the driver, and trying to mash it into gear either too early or too late. Even the 5x4s, 6x4s, etc. required the same of the driver, as they were also unsynchronized transmissions.

Well, it's an engine, not a motor, and what type of equipment? Heavy equipment typically uses an automatic transmission coupled to a manual auxiliary box or a hydrostatic transmission. Scrapers are an exception to this, but they're still quite different from a truck transmission, and those are earth movers, rather than oilfield equipment.

Yeah, I'm curious about that now. I remember seeing brochures from the 1970s which displayed them quite prominently.

 

Hot oil trucks, casing laydown and equipment trucks, workover rig pumps, pump trucks, wench trucks, all class b vehicles. And dont forget you dont need a cdl to operate any of these on location.

 

How do you figure that? I find I don't need to be as perfect when using the clutch. When I clutch, the shifts are always silent....when I float down....well sometimes they are and sometimes they aren't.

Also, my transmission rebuilder told me that no matter how perfect you are, or think you are, sooner or later everyone screws up.

As for wearing out the clutch, I must be doing that wrong too because I drive a '98 that we bought in '07 and it's only been adjusted a couple times.

Might depend a little on the engine too. I pull 80,000 in the hills with an M11 and that engine is a screamer. The tach needle moves like a windshield wiper so the window of opportunity might be smaller to nail the shiftI don't know. I do find the C15's easier to float. I can complete the shift faster with the clutch too...and that matters with 370 hp.

And I've ridden with a few "pros" that float their downshifts...or think they can float their downshifts. I can't bear to ride with them. I think they just get used to it. I don't believe any driver that says he floats up and down perfectly silent all the time every time.

 

well said! Exactly what im talking about!

 

Again, the transmissions are unsynchronized, the clutch doesn't change that... if your timing is off, then your timing is off. If you try forcing in a grinding gear, you'll tear up the transmission either way. If that's what someone's prone to doing rather than letting off of it, revving it back up, and trying again, then yes, they'll tear the transmission up, no matter which method they use (float or double clutch).

The problem with double clutching may not be in double clutching itself, but you're talking about people who don't get floating right... let's talk about those who don't get clutching right. Because there's no reason I should be changing clutches in a 2012 model year truck, and yet I find myself doing that fairly regularly.

 

Ok so for stupid me, walk me through what a clutch does again. It separates the trans from the power right? So when I shift with a clutch I am meshing gears that are NOT being driven by the engine? And when I float, I am attempting to mesh gears that ARE being driven?

 

What you are doing is breaking torque. That's accomplished by either declutching or simply letting off the throttle.

 

Are you telling me then that the clutch does not decouple trans from engine?