Shifting with the JAKE
 

I allways use the jake up shifting down shifting it never goes off. I think the jake helps me becuase it drops my RPMs faster. I can shift with it off just as good but i think i do it better with it on. They tell be you should do it on a road test but how many of you guys do it out there

*** you should not do it on a road test****

I never do that cause then, it would mess up the shifting cause it comes on everytime you time and is very annoying when you try to go to the next gear and all the sudden it does it. So I would say no way.

Re: Shifting with the JAKE
 

using the jake..
 

I never understand people who use the jake while accelerating... sometimes i think they like to listen to the "braap" between shifts.. I don't need to make the rpms drop faster.. does anybody notice the most common trucks shifting against the jake are either dirt dummies or tow trucks... :lol:

I guess I thought it was for slowing down only :shock: .

I turn it on if I think I may need it or when slowing.

I never gave a thought to leaving it on. I don't see the point.

ROLFLMAO :lol: :lol: :lol: :lol:

Ummm.... what's the joke? I'm just a CDL school grad, but that's what they taught--use the jake brake when going downhill to slow, downshift and use the brakes otherwise--which makes me even more annoyed when I hear that BRRAAAAPPPP outside my house. I live on a 2-lane highway on a relatively straight stretch and I still hear the over-use of jake brakes. Almost as annoying as straight pipes on cruisers.

dirt dummies what you mean dummies it does take alot of skill to drive a dump truck taking it off road on un level ground in soft mud. Try keeping inside a paver when your going around turns dumping blacktop with out drafting out and spilling 5 ton on the ground. You OTR trucks dont even see off the road your on the blacktop all the time. It is more likely that a dump truck driver could out shift an OTR driver just for the fact Dump truck drivers shifts alot more during the day. With stop and go traffic. dump trucks aint on the turn pike for hours on end in high gear.

You are right, but others seem to think that it should be kept on while acelerating. Read some of the post above and oyu wwill see why.

Mack you sound like one of my dumass friend I used to be friends with his dad had his own dump truck. He pretty much said the same thing to me onetime. I have alot of respect for some one you guys I rode with his dad a few times. And your right its a hole different story going through arrow streets with a 20ft vehical. I have done that. I wanted to drive dump trucks but theirs know money in it only if you own your own trucks and not just one. And it's to seasonal. But I have to argee with you I never used a jake brake hope to when I start driving cause it going to be used alot. Also I love to hear the jake break it sounds really good to me like music to my ears. Most trucks sound really good other sound like shit.

Mack you must not realize it but there are a few of us who do go off road and you must not have ever asked any of us, maybe not every day but quite on we do.

there is money in dump trucks. They will start you out at a higher pay the OTR i looked at swift and there training pay is 350 then 400 and 500 something like that for the first 6 weeks that ain't no money once you take tax's out. There is more money in OTR yes if you have alot of exp. and never go home. I made alittle over 40k last year with alot of over time all most 55-60 hr weeks and alot of drivers are paid hourly so we get time and 1/2 over 40. i get laid off in the winter but only for like 4-5 weeks. With my last post i didn't mean to put down OTR drivers I see you guys out there with your 53footers and big sleepers in the city it ain't easy. All i was trying to say is all of truck driving weather it be local or OTR it all takes some skill.

Well dont get me wrong I would love to drive them. But 40 grand a year is just not enough for me. I plan on going with a dump trailer company in about a year or so. I would love to drive a dump trailer.

dump trailer you are allmost 100% chance your going to get liad off in the winter and them things will tip over in your on any un level ground what so ever. I never seen one tip seen one come close one time but i hread storys. You have to get out with a level and check frist LOL

Well this company around here seems to run all the time they haul alot of coal and some other things not for sher. And are always hiring that my be a sign not to go their. Sorry for change the subject.

yeah I upshift with the jake on, so what its not like its hurting anything, I got used to doing it when i was in dump trucks and stuff running around in town flippin it on and off, I dont need to wait for it to pull the rpm`s down, in my truck it turns off at 1000 rpm give or take a little and I`ve got enough snot under hood I can short shift it around 1000 when i`m rowing the gears so it doesnt come on upshifting.

I allways left mine on, I drove a newer 387. You had to completely take your foot of the accelerator for the jake to kick in. I just got used to ever so slightly keeping my foot on the accelerator while up shifting (rpm's would drop the same as when my foot was completely off). When the jake is used to can barely hear it, you feel it more than you hear it. So I used it every time I was slowing down. I agree though it's annoying to hear someone using the jake every time they slow down. If no one can hear it no foul right?

I usually shift with it off, unless i forget to turn it off, then i usually notice when is screws up my shift's. Other times i can shift perfect even with it on though, kinda weird.

I also love dump trucks and dump trailers, hopefully i will be pulling a 4-6 axle end dump soon. Way better than van's, i hate van's!!

If you use the Jakes to assist in getting into another gear, not only do you risk violating noise enforcement codes, but you have a good chance of damaging your drivetrain. The Jakes (or any other engine compression brake) were not designed to aid in shifting, they were designed to assist the service brakes in slowing the vehicle, particulary down a grade to prevent the service brakes from overheating.

Ooooohhhhhh big and loud chrome straight pipes..........
Ooooohhhhhh gotta run that jake...................
Yippieeeeeeeee staring at a dogs azz all day..........
Wonder where I can find a forum for dump truck drivers???? :roll: :roll:

You know what they say about MACK drivers. One azz looking at another azz. lol They should start a forum for dump truck drivers

Always has been a tad bit of tension between OTR drivers, and Dump truckers. I'll say this; if the majority of you "so-called truck drivers" had learned to operate a tractor of your choice, and efficiently manuever a 25' Rogers dump trailer, we dumpers wouldn't laugh at you snake steering "truckers" when you attempt to bump a dock. (sometimes I do this on my lunch break -watch these "super truckers" straight back up to our plant dock...pure comedy in most cases" Oh wait, you manuever through rush hour traffic, fall off mountains, etc. Do that with a lowboy, riggers out, dragging a CAT 345 B track-hoe behind you. Sure, some of you have...then you know....

Then there is the matter of operating a tri-axle dump.....some of you would scare me even considering getting near one of these. Definitely different skill than big road running, jawing at other BIG company drivers, and building yourselves up in truckstops, with stories of ......yea. Say you're not all like that? We're not all "dirt dummies" either.

Anyways. I probably shouldn't have said a word. I do take offense to "dirt dummie" however.

I shift with my Jake on. I drive a Mack Granite, or an Autocar most of the time. Both trucks have a "dead spot" in their throttle -right at the top. I simply let it get there, and make a smooth shift. But, if I want to impress a BIG TRUCK driver, I'll burp it. :P :roll:

I only use it with a heavy load, or during mountain driving. I always turn it off when I will be doing alot of shifting because it drops the rpm's too fast for me, which interferes with shifting. Jake is a great tool for slowing; leaving it on all of the time is a matter of personal preference, but not mine.

I also used to drive dump truck, I loved it, way better than pulling some stupid van trailer. Only reason I'm not doing it right now, is, i want year round work, and there is no dump truck work in winter around here!!

There's no need to take your foot completely off the fuel pedal when
shifting. You only want the rpm's to raise/drop enough to go into the desired gear not engage the jake. Sounds like somebody needs to practice shifting :lol:

jake shifting.
 

Just to play devils advocate here a minute. Have any of you who's jakes come on when you take your foot off the fuel and run with them on all of the time considered that you are now slowing down and the people behind you don't,( because there ain't any ), see any brake lights to give them any warning. I run with mine on all of the time too, except when the weather or the noise laws say otherwise, but I have to hit my brakes just enough to turn on the brake lights for them to come on. Just think about that the next time your HRRUMPing up to the stop sign on flat ground empty.

What kinds of trucks are you people driving? I am currently in an international , was in a volvo, driven a couple of freightliners as well and on all of the above, even if the jake is/was turned on it will cut off when your foot is on the throttle, when it is out of gear or when you hit the clutch. I dont realy see how thw jake ever really comes on at all when you are shifting if you have a truck like that....besides that, whats the point anyways. Everybody and their brother thinks you have to use the jake brake for every driving situation now anyways......You dont really even need the damn thing in the city. Way back when, most of the time you didnt even get one unless you were a heavy mountain driver.

I leave mine on because of how they work with the cruise control.

My engine brakes have 4 levels: intermittent low, intermitent high, steady low and steady high. If my cruise is set to say 60 mph and I start down a downgrade, the jakes come on at level 1 around 63, level 2 around 65, level 3 around 67, and level 4 around 69.

If I'm driving through hilly areas, like the foothills of mountains (though not mountains themselves), the jakes act in concert with the cruise control to keep me at a relatively steady speed.

Even with mountains, I use them sometimes. Like... if the road is marked 50 mph for trucks because of grade, I might downshift into 9th and then set my cruise at around 45. The cruise/jakes combinaiton will generally keep me between 45-55 or so up to about 30000 lb load (higher loads, I prefer to do manually though - as of coruse I do *every* load if the road's wet).

I do turn them off when the road has signs making them illegal, and when I get off the interstate in general, or approaching tollbooths - anytime they're likely to be an annoyance to others.

But while they're "on" most of the time, they don't actually kick on unless my speed goes too high... or if I specifically turn them on my hitting the service brake (which keeps them "on" until I hit the accelerator... or better yet, flip the cruise control back on).

:D This thread sure got a few tails in the air.......I was waiting for a good dog fight....but naw....just some sniffin' around....stiff legged.....oh well.

I just use the jake on mountain slide.
Some of us OTRers drive other stuff too...like me...try getting a Fire Tanker with 2000 gals. of water up sides of fires where hazards are everywhere..........mud??....sheeeit...there is no "can't drive cuz of bad conditions." Whatta ya think those boys in New Orleans went through??

We have OTR driver's who have experiance driving in WAR ZONES...and you know they were primary targets......they are the last one's to either whine or brag....this civilian work to them is ....well...I can't speak for them. God Bless you driver's though...and you know who they are.

Truckin' is truckin....and many of us DRIVE'em all.

I sometimes use the Jake on upshifts, but only on Stage 1. Anything higher drops RPM's too fast. (Autoshifts with clutch pedal also work this way). I sometime Jake upshifts when skipping gears or leaving a scale that has a stupid uphill exit.

I also Jake down through the gears when I'm slowing to park. I always like to park on cold brakes to help keep the drums round.

The last truck that I drove from new still had over 90% of it's brake linings at 110K miles, and still had all of the chassis paint on the outside of the drums. It ran local in the mountains and it was often running overweight, so the Jake was used a lot.

(I got into another new truck when the earlier truck hit 110K miles but the company went out of business soon afterward).

The trucks had Cats and the 3-stage Jake programmed to add an additional stage for each 2 MPH speed gain in cruise mode.

It gives me a woody so I shift with it on. (remember I'm a dump rock hauler) Really though its on most of the time and if you do know how to shift it won't come on when your shifting.But we got this killer red head thats is leased to us and she's got straight pipes and she can make that puppy bark (that still gives me a woody).LOL

if you know how to work the fuel pedal it won't come on between shifts .

Must be a big Jeep driver thing. I drive one as well it's on 35's though.
Yup use your feet right and it doesn't come on unless you want it to. Better than reaching for switches. At least thats how I was shown how to drive. I haven't thought about it till now.

Looking at this through a Log Truck Driver eyes, man have they got you all beat to driving and shifting off road, more like moutain mud roads..I grew up around loggers in North Idaho and looking through their eyes I see the jake on and off, just depends on how you drive and just what the hell your driving.... My wife won't let me drive log truck, too many people die in that profession..... I rather be driving a dump truck for sure....

I allways wanted to drive a log truck i dont know why but i just do!!! :P

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What a Jerk!
With a capitol J!! :evil:

I was kinda suprised that more people don't drive with em on all the time. I only turn mine off when I'm in small towns late at night. In rush hour traffic in Houston when somebody cuts in front of you that extra braking in the second or two of reaction time might be the difference between an accident and not having an accident. And as has been previouslt stated if you ease up on the throttle and don't completely remove your foot it shifts easily and the jake doesn't come on......Don