Tractor speed

[bmaverick]

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.

Doing the charted comparison of both, it seems gear selection 5 works at 4MPH either way, or just close enough. His YM3810 has the PowerShift, It's the same as my machine. Yet, I don't have the turbo, so I can't say gear selector and Power-Shift index number to hit the 4MPH on his machine. My machines' rear chassis is the same too. 3T80 vs. 3T84T add in PowerShift and it's too hard to say.

Yes, his other options of clocking it or tracking it would be the best solution overall.

 

[09112]

Wow, plenty of info here. I've printed it out and digest it when I get into this thing. Thanks to all.

 

[09112]

This really hurts to admit that I gave the wrong info on tractor type. So here's the thing, I couldn't remember the name of the tractor so I had to asked my wife. Got that right. Then neither of us could remember the model. The YM 180 never seemed quite right but I have it parked in the shop, about a hundred yards away, and was too lazy to check for sure, besides it was raining. I did say that I was rather senior and perhaps some of you can relate to that. Sorry +++ I'll do better in future. Anyhow I got a lot of info that will get me goin' on this project and I thank you all again.

 

[bmaverick]

This really hurts to admit that I gave the wrong info on tractor type. So here's the thing, I couldn't remember the name of the tractor so I had to asked my wife. Got that right. Then neither of us could remember the model. The YM 180 never seemed quite right but I have it parked in the shop, about a hundred yards away, and was too lazy to check for sure, besides it was raining. I did say that I was rather senior and perhaps some of you can relate to that. Sorry +++ I'll do better in future. Anyhow I got a lot of info that will get me goin' on this project and I thank you all again.

Oh, don't worry, I'm not even a senior yet and I'm having those moments. At least that's what my DW tells me.

Your avatar icon on the post says YM3810. That has the great 3T84T engine. It's the cream of the crop with it's twin the YM4220. The 3T84 comes in plenty of variations and is used in wide applications of machines.

I do have the engine manual in PDF, but it's the non-turbo manual. So, it would be 95% accurate for your needs if you want it.

 

[09112]

Thanks for your generous offer. In fact I do have a tractor manual. I've had the machine for 24 years but don't use it too often anymore. I keep it in the shop on a battery tender and as you know I pretty much forget about it. It's been a great little tractor over the years and the only thing I ever put on it was an oil sending unit. No complaints from me.

 

[Robert walker]

Not sure about Yanmar. I have a Kubota L3400. with it in 1High it is about 4 mph. I use this for spraying speed.

 

[ROUSTABOUT]

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.

I figured with him being so old and all...really speed= rpm x rtr ÷ 168 x rgr

 

[09112]

Okay guys, one of you fine folks have solved the problem. I have ordered a GPS system and I'm good to go. Should have thought of that myself but I'm pretty sure I will be back next time a problem arises. Thanks again.

 

[bigtiller]

A GPS makes it easy. I found out with my jd 2720 that 2200 rpm in low gear with the forward peddle mashed to the floor, gives me 4 mph.

 

[CausticUrbanCoast]

Seems like a lot of work to justify an intentionally inaccurate instrument... unless you can buy military versions that is.

Not so much on the strobe method or simply marking a 1mi stretch and using a stopwatch?