could some1 explain a splitter gear box on hgv lorry?
Jul 03, · Luke Watson explains how the splitter works and how to split gears on a truck with a roadranger gearbox. Road Rangers make speed, speed, 9-speed, sp. Dec 27, · Changing gear from low to high range and back using the standard method that most drivers will use that is 2- 4 in low and 5,6,7,8 in high. If you are carryi.
There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page. The splitter itself is usually operated a rocker switch or 'flipper' switch on the gear lever.
In position 1, it will give you the low half of the gear e. It is possible to preselect the splitter either up how to use a splitter gearbox downthem simply depress the clutch for splihter half gear.
A 12 speed would be four gears with two splitters. You would shift 1 2 3 4, then split the main splitter, shift back to 1, which is now five. Your shift from 5 to 6 is made with the auxiliary splitter, then you shift the aux spliter and go to 2, which is now 7. I hope that makes sense. I do it everyday, so it has become automatic to me.
Your description of an 8 speed is accurate. This would be the same for a 10 speed, 1 2 3 4 5, split, 6 7 8 9 A nine speed is the same as an 8, but with an added low gear that you only use in vearbox range. A 13 speed what I have is the same as a 12 with a low gear.
An 18 speed is a nine speed with an auxiliary splitter that splits every gear, instead of just high range how to pass the teas test the first time a 12 or A vearbox speed is a 10 speed with aux to split the low range gears. It is typically used in dump trucks and off road situations.
Hope this helps. Heavy truck gear boxes come in 3 basic configurations. Usually when laden the gear you splittfr is the one suitable for the conditions. Unless you are at the maximum weight it is a waste of time using 1st low. Usually pull away in 2nd low, then 3rd high, 'block change' across the range into 5th low6th low then up as the revs dictate. Brilliant if you got it right, a right barstid if you got it wrong!! Simply put if it is say a 6 speed box with a splitter it effectively gives another gear between each of the six and one above.
You can refer to them as 1st low then 1stHigh then 2nd low then 2nd high etc. Another way of thinking about them would be to call 1st low simply first, then 1st high as 2nd gear then 2nd low becomes 3rd and so on.
Nico is talking about a high and low ratio box, not a splitter. It could have both and some Dafs I have driven do have thus giving 16 gears from a basic 4. As I mentioned, some boxes have another splitter which effectively splits each gear into two gears, this is handy as sometimes you need a little more pull but don't actually need how to cook a ham bone with beans drop a full gear, so you split down to the half gear.
In the UK they do insist on you block changing during training and on test. You will be failed for not making proper use of the gearbox. I found that "pretending" with a short length of gsarbox how to use a splitter gearbox it into my head.
Once mastered then changing becomes a pleasure and all part of the fun. I have an open mind when I read the press on something like this. But what is widely reported is that this driver offered the excuse that the car had already smashed into the back of the wagon in front. This "man" shows no sign of remorse. Does he deserve any leniency? NONE The sentence is poor, even if he has to serve a minimum of 18 months.
I see too many drivers who are careless and when it comes to getting behind the wheel of a lorrry and being that what a bearded dragon eats the judge needs to show an example to all drivers out there that It has to be manslaughter and it hhow a big sentence.
The sooner bigger sentences are imposed on such people the sooner others will learn - I still see lorry drivers using mobile phones. A splitter box provides a complete "new" set of ratios. In LOW the gearbox delivers high torque and how to use a splitter gearbox in climbing steep gradients. HIGH is the "standard" set of ratios. In a simple way the manufacturer doubles the number of gears without physically increasing the size of the gearbox or adding too much weight.
Some boxes do have a MID setting - in these cases the mid is "standard" and the high offers lower revs for normal driving what plugins do i need for google chrome etc which makes for an increase in MPG etc.
Answer Save. Nightworks Lv 7. Favourite answer. Just to clarify Timbo and Stig: The splitter itself is usually operated a rocker switch or 'flipper' switch on the gear lever. So, using the flipper type splitter as an example, a typical gear progression might be: Select first, flipper down 1st low Flipper up 1st high Select second and simultaneously flipper down 2nd low Flipper up 2nd high Select third and simultaneously flipper down 3rd low Flipper up 3rd high Select fourth and simultaneously flipper down 4th low Flipper up 4th high etc.
Aaargh - the EF TwinSplit!!! Oh how to use a splitter gearbox, the nightmares are coming back!! Timbo is tearbox Lv 7. What do you think of the answers? You can sign in to give your opinion on the answer.
Basically you will have either one or two splitters depending on who made the gearbox etc. Yse sounds a damn sight more complicated than it actually is. Good luck with your training. This Site Might Help You. RE: could some1 explain a splitter gear box on hgv lorry? Lorraine Lv 4. Still have questions? Get answers gesrbox asking now.
Nov 29, · Step 1: The first time you load into the game every time the gearbox is going to be set to low range and the splitter Step 2: Press your clutch in and put your shifter where first gear is. Step 3: As you press in the on your accelerator slowly as you slowly let out on the clutch to start the. four ratios, when used in HI range, can be split with the overdrive splitter gear. After shifting out of the 1st position, you use the easy Roadranger repeat "H" shift pattern. LO range and HI range are selected with the Range Knob/Range Lever. It is used once during the upshift sequence and once during the down-shift sequence. Always preselect the range shift. After preselection, the transmission will. Apr 06, · Range transmission is very similar to the ones used in smaller trucks. The only difference is that they have a high-low gear split whose purpose is to allow reuse of the same gear shifting position for both low and high gears. The Splitter Transmission. The splitter transmission also features a high-low division mechanism.
Last Updated: March 1, References Approved. To create this article, 24 people, some anonymous, worked to edit and improve it over time. This article has been viewed , times. Learn more Learning to drive a semi truck properly requires lots of training and experience, but if you're curious about the basics of shifting one, you can get a primer on the steps that you'll need to practice if you want to drive the big rigs. Learn how the gear shifter workers, how to shift between gears, and some tips for knowing when to shift.
Professional Semi-Truck drivers don't use the clutch except for selecting the first gear. Listen to the engine sound to judge shift points, and lightly feel for the gear, don't grind the tranny. Also, depending on load weight, you don't have to split every gear. To shift gears in a semi truck, start by pushing down on the clutch pedal and moving the shifter into the Lo-gear position. Next, push down on the accelerator, release the clutch, then depress the clutch slightly as you pull the gear shift into neutral.
Then, depress the clutch all the way to the floor, and push the gear shift into first as you release the clutch. Continue this pattern for the first half of the gears, then flip the range selector to 5-H, or fifth gear, to avoid grinding gears when you switch back into the first position. To learn more, like how to downshift when you need to slow down, keep reading!
Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article parts. Tips and Warnings. Related Articles. Article Summary. Part 1 of Understand how the gear shift differs from a normal vehicle's shifter.
If you're familiar with a manual transmission, the basic principles of the Eaton-Fuller Transmission shifter—the style used in many commercial trucks today—is similar, but more complex. Basically, it's oriented like a five-speed, but with a total of four different ratios at each position, which you toggle by a combination of switches and positions. This results in a total combination of 18 different speeds. Your index finger operates the range switch, which allows you to flip between high and low at each gear position with your thumb.
Learn the gear shift pattern. Most gear shifts have a diagram displaying the shifting pattern, which will help to clue you into the organization of the gears. First gear is in the same position as fifth, second in the same as sixth, and so on. Remember, at each position, you also have a total of four different speeds, though only two will be accessible, depending on where you shift from. In first gear, you've got 1L and 1H, as well as 5L and 5H. Practice the gear pattern of the semi while the truck is stopped.
This allows you to become familiar with the gear pattern so you can shift up and down without looking. This will help you keep your eyes safely on the road while driving. If you don't have experience operating the clutch and driving a manual transmission vehicle, shifting a semi truck is going to have a much larger learning curve.
Operating the gear shifter by itself is challenging enough, so you need to be very comfortable operating the clutch on a regular vehicle before you attempt to drive a semi.
Practice on a regular car. Part 2 of Start the truck. Hold the clutch pedal to the floor, as you would to start a normal manual transmission vehicle. This stops the transmission gears from turning, which allows the shifter to slide into gear. Push down the accelerator and slowly release the clutch. As you might guess when the vehicle's got 18 different speeds, getting the truck into Lo gear on Low setting will get you going about one mile per hour, if that. Once you've slid into it, release the clutch and you'll probably be ready to shift into Lo-H.
To shift into Lo-H, you'll change the splitter to High gear to shift into high. You need to depress the clutch slightly, but not all the way to floor, then let it out to shift into Lo-H.
Double-clutch to shift into first gear, low setting. Depress the clutch again slightly not to the floor when the RPMs reach first-gear range, and switch the splitter back to "L," then pull the gear shift into the neutral position and release the clutch.
Depress the clutch again, all the way, and push the gear shift into first, as you release the clutch. This is called double-clutching, and it's necessary because you can't split between low and high on the splitter while you're in neutral, meaning that you have to toggle from "H" back to "L," then shift into neutral, then operate the clutch again to get it into first.
It's a lot of work. Continue this pattern through the first half of the gears. To make the half steps, continue pushing the splitter button, releasing the accelerator, pushing in, and releasing the clutch. Switch over to fifth gear when you're ready. This is absolutely essential. Switch the range, then double-clutch-shift back to where 1 was before, and it will be fifth gear. Continue shifting through the higher gears.
The basic principles now repeats itself. Part 3 of Use the color indicators on the tachometer. Most RPM gauges should be color-coded, with rpms at about the top 12 o'clock of the gauge, which is typically colored green.
This is the ideal place to shift between gears. This region is typically colored Yellow, with anything above colored red. If you're less than rpm and try to shift, the engine is likely to splutter and possibly stall.
Get used to the general shifting conditions. After a while, you'll be able to familiarize yourself with the general positions that you need to shift, but in instruction school, you learn a few basic rules of thumb. Be in top gear at 50 mph Generally speaking, if you're traveling at highway speeds or greater, you should be at top gear always. Be in fifth or sixth gear for sharp turns in city conditions.
To avoid stalling, it's good to be switched over into the upper gears. Other general speed guidelines will vary from transmission to transmission, for different trucks. You'll need to ask your instructor or other experienced drivers for tips. Downshift whenever you're slowing down. To downshift, you need to slow down to the rolling speed by hitting the brake, then select the gear for that range. Typically, you need to rev up to rpm, then slip the transmission into the proper gear for that speed range.
On every Eaton transmission there is a different setup. For the one that is mentioned, the "splitter" is on the left side of the knob and the range selector is the toggle switch directly on the front portion of the shaft.
On a 10 speed, you do not have a "splitter" but only a "range selector", however on a "Super 10" all it has is a "splitter". Not Helpful 5 Helpful That's too dangerous because you are free wheeling in neutral and may gain so much road speed that you'll be unable to get back in gear in time.
Not Helpful 6 Helpful If in gear, pull out and you'll be in neutral. Neutral is what you should always put your truck in when parking and when starting it up. Not Helpful 1 Helpful Having the ability to "split gears" on 13s and 18s are nice for trucking on steep grades.
Split gears are RPM steps instead of 1k. Supers 10s are best to learn on, as they do not require you to go through the pattern twice. Not Helpful 13 Helpful No, you just lift off the throttle to release the pressure when up shifting, and for down shifting, you will give it a little shot of fuel to bump up the RPM.
You step on the clutch, put the gear leaver in neutral, clutch, and then downshift. Not Helpful 8 Helpful
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