I doubt if SDU missed that line any more than I did, CF. That bloke clearly had trouble putting two words, let alone sentences together. Probably can’t tie his own laces. Just cos he called it a splitter valve doesn’t mean it is one. Basically, the 15sp Fuller is a five-over-five-over-five. There is only range-changing, no splitter (so no splitter valve then). The top ten gears are normal five-over-five (like in a Scania 142, except it’s constant mesh), bottom 5 gears are deep-reduction for use off-road or with heavy-haulage. No splitters in that box!
I must have, time stamp, please. What is splitter controlled?
1:42, but he didn’t say it was to split the gears, he called the valve, a splitter valve.
He is referring to the newest knob, which incorporates two valves. The blue one which engages the deep reduction gears and the black (IIRC) one for high and low range.
NO GEARS ARE SPLIT IN A 15 SPEED, IF YOU KNOW DIFFERENTLY, TELL US WHICH GEARS ARE SPLIT
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Yes, I misread ‘splitter valve’ for ‘splitter switch’, thus unnecessarily maligning the narrator! I should have said ‘no splitter switch, then’. That detail aside, the rest of my description of the Fuller 15-sp holds good I think: ie no split gears.
Correct, a progressive shift can be made from deep reduction 3rd to low range 1st. Deep reduction 4th and 5th are overlapped in low range.
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Edit 800 hp + from around 12 litres.
Simple question SDU do ( have to ) go through neutral to make any shift between deep reduction ’ range’ and middle ‘range’ or just switch it like any other split shift ??.If it’s the former what do they mean by no preselect ?.
How do you not preselect a range change ?.
If it’s supposedly a 5 over 5 over 5 range change box then why the need to say no preselect between deep reduction ‘range’ and middle ‘range’ ?.
By definition It has to go through neutral to make a ‘range change’ and how do you make a ‘range change’ without preselecting it before going through neutral ?.Just like a Fuller 9 speed or 13 speed.Not pre selecting a range change will usually wreck the range synchronising mechanism.
As opposed to if it can go between any deep reduction gear and low range without going through neutral first then that’s a split shift and as we know Fuller doesn’t usually allow preselection of split shifts.
I can be forgiven for confusing this and would have sorted out the difference between it being a 5 over 5 over 5 range change v a 10 speed range change and 5 speed splitter before starting it up and leaving the yard.
I still don’t believe that it is a 5 over 5 over 5 in that regard.
But I do know that the N suffix on a Detroit two stroke means naturally aspirated.
There is more than enough energy in the expanded exhaust gasses to take themselves out of the cylinder and to drive a turbocharger on the way and most importantly to pull in the new charge of air behind them.The blower iis just there to help in a few situations where that scavenging effect is compromised.
Turbocharging that process is a game changer to the tune of a potential 800 hp + from less that 10 litres.
Ro would it help if I said there are TWO switches on the shift and that you can find adverts selling replacements clearly also described as range change and splitter switches.Its a 10 speed range change with a reduction splitter on the lower range similar to the 13 speed’s splitter on the high range ?.You don’t go through neutral to select the splitter.
So SDU do you agree that there two switches, one for range control and one to split the low range gears, yes or no ?.
While if the Detroit blower is both a supercharger and an exhaust blower then exactly what does the turbocharger do and exactly what drives it ?.
Gawd help us. Engaging deep reduction on a 15-sp is like engaging 4wd or low-range on a Landrover. You need to stop all the cogs from turning before engaging ultra-low gears of any type. (Except very modern 4wd cars).
As for pre-select, it means don’t pre-select the gears, not the range.
Why not? What’s difficult to understand about a 15-speed range-change? And of course you can’t pre-select a range! It’s the gears you mustn’t preselect, but only in deep low-range.
Could it be that the 2nd switch is for deep reduction.
That’s not entirely correct. We’ve been here before. You could preselect but not too early as it wore out moving parts.
As an aside, with a 13-sp Fuller, if the splitter servo was piped directly to the control switch, rather than via the clutch servo, you could effect clutchless split shifts requiring only a brief break in torque load by momentarily lifting the accelerator (like the later Twin-splitter). If not, you needed to declutch.
Irrelevant here because the 15-sp 'box isn’t a splitter.
I don’t recall ever having challenged this.
He probably needs to change his search engine
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Attitude would be better. He’d argue black was white and refuses to admit when he is wrong, against overwhelming proof.
More random crap.
Further demonstrating your total lack of knowledge and understanding. Your other input indicates that you have never driven a RoadRanger, of any type.
Now that we have proven you wrong, perhaps you could tell us which Detroit engine you have properly used in revenue service.
Just stick it in D and go bro 
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I very much doubt it, you’ve had it explained, in words of one syllable or less, by multiple people but you continually insist that it is a splitter.
No wonder you failed as a truck driver. Stick to sack barrows.