Independent Pto and use of external ORC

[TripleR]

Thanks,

I do realize what happens with the momentum if you don't have ORC on transmission driven pto . There you have to do it as a necessity. My questions here is " what is a better practice? " to use or not to use external ORC in an independent pto system just for a brush hog. I suppose if you did not have ORC The torque can be directly go all the way to flywheel should one of the safeties such as Operator presence activate and kill the engine and the pto did not have a brake.

JC,


Second link was pretty good.

Just FYI, PTO switch on some kubota model, you turn the knob and it turns on, you hit it on top and by spring action it goes to it's normal off position. A plastic cover over the switch would keep the accidental pressing and Turing the pto off while mowing with a heavy brush hog.

Our L5740 has that type and I don't like it, I prefer the lever.

As to "best practices" Soundguy and others know far more about the mechanical aspects of tractors than I, so I will defer to them.

 

[DK35vince]

I"ve been running an overrun clutch on my tractor with Independant PTO and PTO brake for years.
Saves wear on the brake and lets you be able to turn the PTO shaft when hooking up attachments, making it much easier hook up.

 

[JC-jetro]

I"ve been running an overrun clutch on my tractor with Independant PTO and PTO brake for years.
Saves wear on the brake and lets you be able to turn the PTO shaft when hooking up attachments, making it much easier hook up.

Vince,

I share exact the same opinion and see no prohibition to do so.

Triple R,

The switch design is not realy bad. The same concept is used to turn things off in an emergency situation such as emergency fuel shut off in a boiler room in case of emergency and as you exit. Kill switch like that is mandatory by code in many jurisdiction. In an emergency I rather destroy pto clutch brake that any limbs. Having some clear plastic cover on a hinge right over the mushroom switch might not be a bad idea.

JC,

 

[TripleR]

Vince,

I share exact the same opinion and see no prohibition to do so.

Triple R,

The switch design is not really bad. The same concept is used to turn things off in an emergency situation such as emergency fuel shut off in a boiler room in case of emergency and as you exit. Kill switch like that is mandatory by code in many jurisdiction. In an emergency I rather destroy pto clutch brake that any limbs. Having some clear plastic cover on a hinge right over the mushroom switch might not be a bad idea.

JC,

Oh, I didn't say it was a bad idea only that I don't like it. In an "OH HECK" situation instincts take over and since everything I operate except the 5740 has a lever, I am automatically going to go for a lever and not a button. Now after I get use to it and swap between tractors am I going to be "safer" with one over the other; beats me.

"Safety" or the perception thereof keeps me from going with an ORC as I know how long it takes the cutter blades to stop with one as opposed to with the PTO brake. I take care to idle down without chopping the throttle then disengaging the PTO which may help with wear and tear on the brake.

Since on the Kubota HST pressing the clutch disengages the PTO from the engine, I might see what effect pushing the clutch has on the PTO winding down; may work just like an ORC just never tried.

As I said, I don't know the "best way" only with what I am comfortable to me and has worked well to date.

 

[Soundguy]

I'm glad the fords I own are all lever pto setups.

my stepfather has a jd with a knob button ordeal. I don't like it at all..

Oh, I didn't say it was a bad idea only that I don't like it. In an "OH HECK" situation instincts take over and since everything I operate except the 5740 has a lever, I am automatically going to go for a lever and not a button. Now after I get use to it and swap between tractors am I going to be "safer" with one over the other; beats me.

"Safety" or the perception thereof keeps me from going with an ORC as I know how long it takes the cutter blades to stop with one as opposed to with the PTO brake. I take care to idle down without chopping the throttle then disengaging the PTO which may help with wear and tear on the brake.

Since on the Kubota HST pressing the clutch disengages the PTO from the engine, I might see what effect pushing the clutch has on the PTO winding down; may work just like an ORC just never tried.

As I said, I don't know the "best way" only with what I am comfortable to me and has worked well to date.

 

[Soundguy]

it's merely a choice IMHO.. I don't think it qualifies as a best practice issue.

them lift covers are heavy and some of us don't want to have to dig into them to repalce our worn brakes.. but we ar ethe kind of people that if it is worn / broke.. we HAVE to repalce it. so we tend to try to save some work..

soundguy

Our L5740 has that type and I don't like it, I prefer the lever.

As to "best practices" Soundguy and others know far more about the mechanical aspects of tractors than I, so I will defer to them.

 

[TripleR]

I'm glad the fords I own are all lever pto setups.

my stepfather has a jd with a knob button ordeal. I don't like it at all..

We used John Deere lawn mowers for years with the push button and while they lasted well, I never liked them and still avoid using our 2305 as much as possible. I was really disappointed when Kubota went that route. There may be some mechanical advantage to it, I just don't know.

it's merely a choice IMHO.. I don't think it qualifies as a best practice issue.

them lift covers are heavy and some of us don't want to have to dig into them to replace our worn brakes.. but we are the kind of people that if it is worn / broke.. we HAVE to replace it. so we tend to try to save some work..

soundguy

Best practice may very well depend on someone's mechanical ability and how much they use their tractors. You probably use your machines more than most. There are members who obsess about wearing their machines out prematurely and only put on 100 hours or so, some even less. If you break something, you just pull it into your shop and fix it. Most of us just stare at it a minute, scratch our head, maybe lift the hood cause that's what men do, then find the number to the dealer and have it hauled in to fix.

I grew up in a time when most farmers could work on their own stuff, trucks, cars, tractors, but now few do anything other than routine maintenance. I remember my surprise when while talking to one of our renters who is 82 years old and farmed all his life, about tractors, maintenance, fuel etc., he pulled a cell phone out of his pocket and gave me the number to his mechanic.

 

[Soundguy]

i do like to do most of my own tractor stuff. I did farm out a hyd priority pack repair once as I lack the tools to test it.. but other than that.. I like to spin the wrenches on my babies..

 

[EE_Bota]

Here's what I think about it:

Disadvantages:

1) $60, time, effort.

2) may add drive line slop. May create need to trim drive line shorter.

3) makes the brake you are attempting to protect a worthless piece of optional equipment on your tractor since if cannot brake anything with the ORC is on, and worrying about fixing the brake (if broken) is an odd worry considering you are making is irrelevant by adding the ORC.

4) the brake in many cases is to defeat the viscous coupling of clutch pack driven independent PTO's so it will not turn when not engaged. You may see that problem happen if the brake goes bad, but it doesn't mean it will actually kill you. A man would have to decide whether he thought it was engaged or just loafing, I suppose. I'd just turn the tractor off if I saw that, since a hydraulic controlled PTO is already more than "simple" design, and could turn on at any point due to malfunction of any type.

Advantages:
1)brake does not wear due to simulating having no brake.

 

[JC-jetro]

I do the same Chris. The only time my vehicles go to the shop ever is for front end alignment and tire swaps. The same thing holds true for anything in my house. Since I bought my Ford tractor, I have done anything and everything it needed by myself minus putting new front tires. I do like wrenching but more important that that is understanding any mechanism you are working and that is the key.

I never ask a question without having some understanding and opinion about the subject matter. I do it to re-affirm what I think, add to it, subtract from it and gather people's experience and opinions. It's all good.


JC,