How to Change Gears in a Heavy Rigid Using a Non-Synchromesh Gearbox
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- Опубликовано: 12 ноя 2014
- Heard the phrase "double-clutching" but don't quite know what that means? Being able to change gears smoothly in a non-synchro takes practice and an understanding of what is actually happening.
When the CEO of the company has the best footwork
Honestly for a short video, this guy does a pretty good job of explaining the process in an effective way.
Well done sir made your point crystal clear in 2 and a half minutes!! Just watched another video that took 13 minutes to describe the same thing and still didn't understand a bloody thing!!!
Clutch to neutral clutch to gear helped me remember when I was learning. Great video .
Just a note of caution, I watched this video and thought I would be right to choose a non synchromesh or 'Crash Box' transmission for a 2 day Heavy Rigid course and assessment in Australia. I could barely shift up and down on a straight back road let alone do the test around town with roundabouts because you also need to make sure you are in the right rev range before the gear will engage. I was in an older Kenworth with a long gear stick shaft coming out of the floor and could barely tell what gear I was in and couldn't get a feel for the gate at all. Luckily I was able to switch to a Volvo with a Synchromesh gearbox for the rest of the course.
Nice video sir, well explained.
My grandpa was a long distance truck driver in BeNeLux, France and Germany.
During school holidays I could always come with him and soon enough he allowed me to sit on his lap and hold the wheel or have my hand on the gear lever with his hand on top to work the gears. When I was still small enough for his lap, and too short to reach the pedals, he drove a non-syncro Mercedes and I remember getting tossed up when he double clutched. 😂😂😂
He started working at the age of thirteen delivering milk with a horse cart and started driving a milk truck at sixteen. In the army he got his license for tractor trailer and started hauling at nineteen. And did so, in a Scania, till he was 73, when he was rejected at the annual health assessment for his poor eyesight. He died eight months later, in his sleep. The evening before, my dad had told him over the phone that he had bought an Iveco. Before grandpa put down the phone he said « I hope you ordered a chain and magnet with it, to retrieve the parts that fall off...and buy a thick crossword book for kids, you gonna have to kill a lot of time, you donkey »
And to think that later on in high school, the student counsellor really believed I was gonna become an electrician.
A magnet won't help with all the plastic that falls off.
Very helpful, thank you
Damn, I understand everything now, after years of looking up the internet haha
trust a truck ceo
Easy explanation 👍
are u sure thats not a 6109 or 8209 syncro eaton box. there in all the mitsubishi isuzu ect. we used to build them all the time for sorn syncros. driver see the eaton sign on knob and think its a dog box.
I’ve just completed my HR license on a non synchro box. Major head f$&k even though I’m a well versed driver of manual cars for 40 years plus
Changing down across high to low with reving between changes and clutch movements… OMG
thanks sir
From what I can tell, the gearbox internally is somewhat like a dogbox (IE: dog gears) so double clutching itself is something I have practiced before. What about for down shifting? Do you need to rev match with the throttle? Or just employ the same double clutch method as shown here?
I'm looking to do my HR licence and was thinking to just do the test in a truck like this anyway. Might as well get licenced for everything. Maybe won't use it, but at least I have it if I need it :)
Yes, you have to blip the throttle to change down, usually around 500 revs.
Been driving a 6 speed synchro MR for 2.5yrs and I hink I'd still struggle
what is 2 time clouching like a Low-H Split e.x 6 to12 Hight ?
Not sure whether I should be relieved or disappointed that no one has quoted The Fast and the Furious yet!
+falcon35180 There are non-synchronous manual transmissions in the fast and the furious ?
falcon35180 is it something to do with all the gears that the movies make out the cars to have lol
"Granny shiftin' NOT DOUBLE CLUTCHING LIKE YOU SHOULD"? X)
I seriously miss proper truck gearboxes like this now !!!
You must be a hero
No John, just bored with the modern automated crap............
These auto gearboxes are rubbish. The ERF EC10 you could hear it a mile away. When changing down gear.
I do too, WONT drive an automated truck. One wonders what they do with their spare hand now
@@johncitizen6332 he’s my hero you can’t have him
Armstrong is the best institute for trucks and buses
So the clutch is not engaged fully just about half way depressed, correct?
Kane Underwood yeah... fully depressed engages the clutch brake (which you only need for when the truck has stopped and put into neutral)
Also you never stop without it in gear and the clutch depressed halfway which really wrecks havoc on your clutch leg if you’re sitting in traffic or stopping at lights
Good
In North America we do not drive synchro transmissions in our heavy trucks. We run double 53 foot trailers with far higher payloads than you run in Britain. Many of our trucks have 18 speed transmissions and they are non synchro transmissions. A few years ago Volvo offered a multispeed transmission that was synchronised for the North American market. They are no longer available. The reason is because you have to use the clutch with these, and with a multispeed transmission that would be a lot of clutching. Most of our veteran drivers shift without the clutch, and they do it effortlessly and smoothly. The synchro transmissions are just too much work. They hated them here. Synchros are for Europe where they pull lighter loads and single drive axles.
This video is from Australia and WE often run much heavier loads than you do. The video was taken in a heavy-rigid truck, not a semi.
Yes, you guys do run heavier loads than us, and far heavier than those Brits. Here we run "rigid" trucks in the city for the most part. Our big super B trains and double 53 foot trains run on 4 lane highways. We run 18 speed crash boxes in many heavy semi trucks here, and most guys would not be double clutching that many gears, so I found it entertaining to watch. Our green drivers do double clutch. The veterans, not so much. I have driven long haul for 44 years and if I double clutched every gear in all those years I would have a lopsided left leg, or I'd be crippled.
@@SternDrive Hardly anyone actually shifts that way on the road but the instructors are officially required to teach you to do it for safety reasons.
Yes, I do teach new guys to double clutch and when they have mastered that I teach them to partial clutch (no clutch out, single clutch in) and then I teach them to shift with no clutch ( floating) and just a light two finger touch. BTW, our guys don't know what a "rigid" truck is. Here they are called "straight jobs" and they are 5 or 10 tons and have synchro 6 or 7 speed transmissions. The new ones are all automatics. Most guys here could not (or would not) drive a manual. They are very rough. If the city haulers want drivers they must give them automatics. The whole industry is being dumbed down.
The jobs I've applied for if ya couldn't drive clutch less you failed . That's how I learnt in Australia. In a 9speed Mack
I drive this type of transmission
Can non synchromesh license drive all licenses?
when down shifting the real non synchronized transmission, u would clutch to neutral then gas and clutch to the gear. has to be right timing. the trick is the gas and timing.
Yep, pity he didn´t show the downshift too.
StevieSpain D also his steering wheel is on the wrong side
Looks alright to me :D
no its on the "right" side ;)
It is called rev matching, and it should be done on all manual transmissions, unless you want to give lots of business to the transmission and clutch industry.
Just float my friend
gimana cara mengoprasikan prosneling mercy 3836
En mi camion no cambias con doble clutch.....es duro el pedal aparte de eso no te entraría ningún cambio,solo la primera
Just curious.. why do they make them without synchromesh..?
More durable, and fewer parts make them cheaper to produce and maintain than synchromesh gearboxes.
IAmAgainst also eliminates extra weight which is vital when calculating GCM
Even some classes of race cars use them in order to make changing gear ratio packages easier.
IAmAgainst synchronized Transmissions is more updated and easier but I like non synchronized transmission that's the real way of driving
In North America they do not have heavy trucks with synchro because they run much heavier loads than Europe. All the heavy trucks here are double drive axles and many are double 53' and some times even triple trailers. We also prefer them because you can float the gears effortlessly. That does not work in a synchro transmission where you must clutch.
Dance 🕺 moves 1,2...n again...1,2🤙🤣🍻
Nothing is better than automatic transmission
Except manual
Those valves and extra metal plumbing on the side of the gear stick are not common at all.
that's good an easy
I float without the clutch for almost all shifting
Well aren't you special
Whit!
Naaa he’s saving irreparable damage to his left knee and saving the trucks clutch. . . . I call it smart
Welcome to America
I'm afraid it's either a synchromesh for me, or I get a new Scania R520 with automatic assisted gears. A bit expensive but ease of driving makes for increased safety. No way am I ever getting a truck that I have to double clutch😖😀
lol yeah,it's 2016..
These aren't the days of the movie "Convoy" and "Smokey and the Bandit"
Patrick Musson If you float them then you don't even have to touch the clutch except starting and stopping, it's not that hard.
I never thought of that. Interesting.
automatic trucks are really pain to drive. when on heavy load the imperfections in the automatic system starts to come out, making low speed driving on hills just slower and potentially harming to the engine since the system often tries to go with the higher gear first before switching to lower, when the car has already slowed down and lugged.
for some unknown reason they often are also equipped with automatic crouch which cannot even be turned off manually, which just causes unnecessary frustration when driving. the thing is often fast by default requiring control with a brake, but the system also wants to switch itself off when fully depressed the brake, requiring new activation with the accelerator. you can imagine you don't want that when trying to crouch, especially reversing, in a crowded area where you rely heavily on speed control and often have to stop the vehicle.
what's the worst though is the reverse gear, which for some unknown reason often comes with too high speed to torque-ratio taking in to count that there's no clutch to further control the speed. it's fucking pain to try to reverse these things in narrow gaps or accurately reverse in to the pier which would be easy to do with any manual box.
i've driven maybe 8 different automatic trucks in total from volvo, mercedes and scania, and they all come with the same faults. go with the manual, believe me. you want to be in full control of the vehicle instead of having to compete with the stupidity of the automatic systems in situations where you need to be as accurate and safe as possible.
one two one to my ass you don't even need that clutch shifting gears
Pete s of course, but this being a driving school, he's showing what you are expected to do for your driving test.
ur steering wheel is on the wrong side sir, and it looks like syncronized box.
Right side for Australia...
That's the correct side where it should be
Auto play
Umm, there is no WAY I could ever do that and to be honest this kind of machinery is a barrier to women. Yes, that makes it sexist.
There's also a 9 tonne weight limit you fat fuck
Please don't tell women that they are too dumb to drive a manual. I have seen women that drive crash gear boxes better than some guys.
whats with the one/two, one/two? are u conducting a fucking dance class? clutch to gear clutch to neutral! now i know not to come to armstrong