Tractor speed

[09112]

Hi guys, been a long time since I visited this site, as I finished my Allis project. Now I'm trying to find out what gear and rpm I use on my Yanmar YM3810 to attain 4 MPH.

 

[lman]

You could probably use a speedometer app on your phone.

 

[CH4Ohio]

Get someone to walk fast along side the tractor and experiment. Verify with GPS on phone.

 

[09112]

You could probably use a speedometer app on your phone.

Thanks for the input Iman. At 86 I wouldn't know how to use a high tech machine like a speedo on a phone; or even a smart phone for that matter. But hey, It's a good idea anyhow, and I thank you for the input. So define my request a bit, can someone tell me how they figured out the speeds in the olden days?

 

[oldnslo]

Another option is time to cover a known measured distance.

example: 4 MPH it takes 51 seconds to travel 300 feet

 

[ptsg]

While I couldn't find the speed chart for the YM180, I did found one for the YM220, which I believe is the same with 4 HP more.

They didn't list on what size of tire this is based of, but should be very close regardless. The speed is based on 2600 engine RPM. As an example, you can have 4 mph in 6th gear at 1900 RPM.

 

[09112]

My thanks to all of you. I'm spraying a 10 acre pasture and you have given me enough ideas to get me on my way. Again thanks for your input.

 

[dodge man]

When I was younger I could walk four miles an hour, it’s not running but close. Walking 3 mph is fairly easy on the other hand.

 

[CausticUrbanCoast]

Paint a white line on one of your front tires, count the times you see it in a period of time. I use an old travel alarm clock and go for about a minute.

 

[bigtiller]

At 4 mph you will travel 5.87 feet per second.

Miles Per Hour to Feet Per Second | Kyle's Converter

Instantly Convert Miles Per Hour (mph) to Feet Per Second (fps) and Many More Speed Or Velocity Conversions Online. Miles Per Hour Conversion Charts. Many Other Conversions.

www.kylesconverter.com

 

[Doughknob]

In olden days they used the speedometer app on the land lines......

 

[ROUSTABOUT]

Oh he wants to cover 1280 rods per hour. 80 rods is 1320' or his speed of 660' in 7.5 minutes. He can probably get that with his old Hamilton pocket watch. Or 88 feet per minute.

 

[IndyJay]

In olden days they used the speedometer app on the land lines......

I remember those days. That is where the retractable cords really came in handy. You had to convert from feet per second.

 

[Doughknob]

I remember those days. That is where the retractable cords really came in handy. You had to convert from feet per second.

 

[09112]

Com'on guys, you're giving me a headache. Okay, I have it figured out. I follow my wife in the car. Rods, rods? I haven't heard of that measurement since I was a kid. Too many years in the big city I guess.

 

[old and tired]

I would add one thing; 4 mph over a pasture is pretty fast. Depending if it smooth or if it's rough. I've tried to do 3 mph down my gravel driveway and forget it... way too bumpy.

If you are spraying that 10 acre pasture and IF 4 mph is too fast, figure out what speed is comfortable and measure the distance you drive in one minute (or measure 300 feet and time how long it takes to drive that).

Is the sprayer a fixed boom width? With a certain number of nozzles? Run the tractor at PTO speed and fill the sprayer with water and collect the amount of water coming out of the nozzles for 1 minute. If it's got 4 nozzle, collect amount out of one and multiply by 4.

Measure the width of the spray (spray water on the ground until wet).

You can calculate what your "gallons per acre" your sprayer puts out at the new speed. Then you can measure the correct amount of chemicals based on the label of the chemical you plan to spray.

You don't have to drive at 4 mph, if that is what your sprayer is calibrated for... you can adjust it.

If you try to spray at 4 mph but can only get 2-3 mph when you are spraying, you are going to put out more chemical than the label rate.

Anything not clear, just keep asking questions... we can talk you through this.

 

[LouNY]

As mentioned above calibrating your sprayer is part of the job,
but even with that done a steady defined speed is required.
Unless, you go whole hog and get a $350,000 spray rig.

But the easiest way to get your mph in a gear at a certain rpm would be;
feet traveled in one minute times 60 (feet per hour), divided by 5280 (feet per mile) yielding mph
or for a shorter measurement ;
feet traveled in 15 seconds times 240 (feet per hour), divided by 5280 (feet per mile) yielding mph

Here are several calibration and sprayer calculation ideas;
Calibrating a Sprayer: 4 of The Best Apps, Calculators and Worksheets

If you google sprayer calibration many different methods and tools will show up.

 

[JCoastie]

this will help Amazon.com: VJOYCAR Universal Wireless Car HUD Head Up Display Digital GPS Speedometer MPH Solar / Battery / USB Charged with Time Clock Over Speed Alarm Fatigue Driving Alert Temperature Altitude : Electronics

If you have a 12v adapter on your tractor (or can hook up 2 wires), this may be even better, less function, bigger display https://www.amazon.com/Universal-Vehicle-Smart-HUD-Display/dp/B07HNDLGPC

Something like a wireless bike computer costs just a bit more, and has functions you don't need, but would be a good option. You can velcro it anywhere, it's waterproof, battery operated, and will have decimals of a MPH, so you can see 3.8mph and not just 3 or 4mph for example. https://www.amazon.com/Computer-Bluetooth-Waterproof-Speedometer-Backlight/dp/B098T8PQ1X

Or ask the neighbor kid to bring his smart phone over and buy him a pizza lol

 

[bmaverick]

While I couldn't find the speed chart for the YM180, I did found one for the YM220, which I believe is the same with 4 HP more.

They didn't list on what size of tire this is based of, but should be very close regardless. The speed is based on 2600 engine RPM. As an example, you can have 4 mph in 6th gear at 1900 RPM.

That chart will not work with his YM3810. His engine is a 3T84T, T as in TURBO. Thus, one would need to look at a JD1050 with the turbo for a better comparison. The rear chassis' are about the same too.

TractorData.com John Deere 1050 tractor transmission information

www.tractordata.com

Like the one poster did say, the wheels do make a final outcome on the speed.

 

[ptsg]

That chart will not work with his YM3810. His engine is a 3T84T, T as in TURBO. Thus, one would need to look at a JD1050 with the turbo for a better comparison. The rear chassis' are about the same too.

TractorData.com John Deere 1050 tractor transmission information

www.tractordata.com

Like the one poster did say, the wheels do make a final outcome on the speed.

Turns out the post was edited at the same time I posted that info. Originally the OP mentioned a YM180 on his first post, which is why I used the YM220 as reference since I couldn't find info for the YM180.

I guess it's always better to quote posts, so it doesn't create confusion like this.