Mowing PTO speeds

[JT White]

When I bought my Yanmar 2310 about 2015. It came with the Howse Bush Hog and the gent told me to use it in #2 PTO position, in second gear and at 2300 engine rpm's. I have followed that setting for the most part since day one. I don't know the PTO speeds of which there are four and if I run it in, say 3rd PTO and 3rd transmission gear at 2300 engine rpm's, will it destroy my bush hog gear's? I do 5 acres with several trees and would like to get it done a bit faster. Do I stay with the original settings? Thanks.

 

[claggstractors]

Pretty sure it is already overspeeding it in 2nd PTO Gear. IIRC, 1st is 540, 2nd is 750, 3rd is 1000, & 4th is 1500. Most US made stuff is 540 only. My Kubota B6100 is the same except missing the 3rd/1000 pto rpm speed. Only implement I got that is safe for all three speeds is the factory tiller for it.

 

[bmaverick]

When I bought my Yanmar 2310 about 2015. It came with the Howse Bush Hog and the gent told me to use it in #2 PTO position, in second gear and at 2300 engine rpm's. I have followed that setting for the most part since day one. I don't know the PTO speeds of which there are four and if I run it in, say 3rd PTO and 3rd transmission gear at 2300 engine rpm's, will it destroy my bush hog gear's? I do 5 acres with several trees and would like to get it done a bit faster. Do I stay with the original settings? Thanks.

Lets look at the tach on the YM2310 for some clues.

Its the tach with no help for PTO use.

On other YM machines like the YM3110, the tach is robust with various levels of running 500 to 540 PTO rpms at various engine speeds and the multi-speed select PTO selected from 1, 2, 3, & 4.

Notice the PTO indicator with (1) (2) (3) (4). Then follow around till you find the 500rpm mark for each radius.

PTO (1) 500rpm charts to be 2200 engine rpm
PTO (2) 500rpm charts to be 1900 engine rpm
PTO (3) 500rpm charts to be 1300 engine rpm
PTO (4) 500rpm charts to be 1100 engine rpm

So, with the speed of the engine RPMs, the PTO speed can vary.

You are now asking, how can you chart this on a YM2310? Not easily via the tach.
Instead you need a Tachometer photo sensor hand held device. Using a dab of paint on one of the PTO spline teeth, paint it white. Next, with someone in the seat, operate the tractor in each PTO setting while adjust the engine speed to find either 500rpm or 540 rpm. Log this as your golden chart for hitting these PTO speeds.

Digital Photo Sensor Tachometer

Amazing deals on this Digital Photo Sensor Tachometer at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

WHY is this very important? With my YM2610, it has the same tach as the YM3110 and others. I run in PTO (2) about 480rpms with engine speed about 1600. This with the 3PT mower gives a great cut and best of all, it SAVES FUEL !!! The best of both worlds, less wear on the mower and to save fuel. This means more seat time and the hour meter runs slower!

This has been a long discussion on the Yanmar Tractor Owners Group. The community members have benefited with the discussions and fuel savings this year as prices are insanely high.

Now for you to go faster, once the PTO has been dialed in, you can pick the PTO selection and engine RPMs to match. Then with the PowerShift in the right band, you can move along nicely at a good clip. Hope this answers your questions.

 

[JT White]

Thanks bmaverick, I will get into this as I can. Reviews on the Tach is impressive. One will be mine as I have no PTO indicator. It's been okay with PTO 2 and 2300 rpm's but I need to know.

 

[Menagerie-Manor]

Lets look at the tach on the YM2310 for some clues.

View attachment 757162

Its the tach with no help for PTO use.

On other YM machines like the YM3110, the tach is robust with various levels of running 500 to 540 PTO rpms at various engine speeds and the multi-speed select PTO selected from 1, 2, 3, & 4.

View attachment 757168

Notice the PTO indicator with (1) (2) (3) (4). Then follow around till you find the 500rpm mark for each radius.

View attachment 757176

PTO (1) 500rpm charts to be 2200 engine rpm
PTO (2) 500rpm charts to be 1900 engine rpm
PTO (3) 500rpm charts to be 1300 engine rpm
PTO (4) 500rpm charts to be 1100 engine rpm

So, with the speed of the engine RPMs, the PTO speed can vary.

You are now asking, how can you chart this on a YM2310? Not easily via the tach.
Instead you need a Tachometer photo sensor hand held device. Using a dab of paint on one of the PTO spline teeth, paint it white. Next, with someone in the seat, operate the tractor in each PTO setting while adjust the engine speed to find either 500rpm or 540 rpm. Log this as your golden chart for hitting these PTO speeds.

Digital Photo Sensor Tachometer

Amazing deals on this Digital Photo Sensor Tachometer at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

WHY is this very important? With my YM2610, it has the same tach as the YM3110 and others. I run in PTO (2) about 480rpms with engine speed about 1600. This with the 3PT mower gives a great cut and best of all, it SAVES FUEL !!! The best of both worlds, less wear on the mower and to save fuel. This means more seat time and the hour meter runs slower!

This has been a long discussion on the Yanmar Tractor Owners Group. The community members have benefited with the discussions and fuel savings this year as prices are insanely high.

Now for you to go faster, once the PTO has been dialed in, you can pick the PTO selection and engine RPMs to match. Then with the PowerShift in the right band, you can move along nicely at a good clip. Hope this answers your questions.

Why don't you publish your brain, seems to me there's more Yanmar info available there then anywhere else. I'll sign up for the first copy.

Never thought to test but just remembered I have one of these that will do the job.

 

[bmaverick]

Thanks bmaverick, I will get into this as I can. Reviews on the Tach is impressive. One will be mine as I have no PTO indicator. It's been okay with PTO 2 and 2300 rpm's but I need to know.

Bet to use the tach meter with the infrared sensor.

 

[bmaverick]

Why don't you publish your brain, seems to me there's more Yanmar info available there then anywhere else. I'll sign up for the first copy.

Never thought to test but just remembered I have one of these that will do the job.

View attachment 757428

Ugh. Actually there is a good deal of info out there on the web. My brain is not 'all knowing' by any means. I'm the 3rd owner now of the Yanmar Tractor owners Group. During the migration from Yahoo to GroupsIO, I had the neat privilege to pull the 30+ year archive data there and browse thru a good deal of it. Mostly for organizing it and removing the SPAM. In the work, I did get caught up in those rich archives of the brilliant people back in the day. So are still here on TBN like rScotty, Winston and others whom keep there new IDs vague.

I've pulled together lots of documents and hard to find data on these machines. There are still gaps not yet fully understood.

This site and a few other places do have people with Yanmar Fever with a wealth of information.

My small group of volunteers donate some efforts and time to help out where they can. Some are retired, some have families, and some are pleased to remain anonymous to have the information retained and not lost forever.

There isn't a whole bunch of Yanmar history on the web from the 70s and 80s. I've found books at the library and even had books from distance libraries under the share-a-book program to read up on Yanmars.

I can say I'm versed in the Yanmar machines, but not exactly a brain-e-ack.

 

[5030]

Why don't you publish your brain, seems to me there's more Yanmar info available there then anywhere else. I'll sign up for the first copy.

Never thought to test but just remembered I have one of these that will do the job.

View attachment 757428

yes it will and I have one as well, great little tool. I used it on the 1000 rpm PTO shaft on my Kubota to determine where the 1000 rpm shaft was spinning at 540 as I put a 21-6 spline adapter on the 1000 shaft to run my hay rake. More economical than running the 540 at rated rpm and I paint marked the tach face where it was at.

 

[Menagerie-Manor]

Ugh. Actually there is a good deal of info out there on the web. My brain is not 'all knowing' by any means. I'm the 3rd owner now of the Yanmar Tractor owners Group. During the migration from Yahoo to GroupsIO, I had the neat privilege to pull the 30+ year archive data there and browse thru a good deal of it. Mostly for organizing it and removing the SPAM. In the work, I did get caught up in those rich archives of the brilliant people back in the day. So are still here on TBN like rScotty, Winston and others whom keep there new IDs vague.

I've pulled together lots of documents and hard to find data on these machines. There are still gaps not yet fully understood.

This site and a few other places do have people with Yanmar Fever with a wealth of information.

My small group of volunteers donate some efforts and time to help out where they can. Some are retired, some have families, and some are pleased to remain anonymous to have the information retained and not lost forever.

There isn't a whole bunch of Yanmar history on the web from the 70s and 80s. I've found books at the library and even had books from distance libraries under the share-a-book program to read up on Yanmars.

I can say I'm versed in the Yanmar machines, but not exactly a brain-e-ack.

My normal brain function when I buy new equipment like my Grey 2310 is to learn them inside out and I have no control over that habit. 15 years into Wrangler TJ's there is barely a bolt, screw or device I cannot call out. It's a sickness from being a retired mechanical project manager.

 

[California]

I'm the 3rd owner now of the Yanmar Tractor owners Group. During the migration from Yahoo to GroupsIO, I had the neat privilege to pull the 30+ year archive data there and browse thru a good deal of it.

I've pulled together lots of documents and hard to find data on these machines.

This site and a few other places do have people with Yanmar Fever with a wealth of information. [ !]

There isn't a whole bunch of Yanmar history on the web from the 70s and 80s.

Thanks for the work you do collecting all those manuals and making them available.

When I bought the YM240 in 2003 there was nearly no information available anywhere. The internet wasn't as widely available, and the few old timers who worked on US Yanmars were scarce online. I inquired several places if the green on my YM240 meant it was an early version, with no information found. Online activity was mostly buyers of the Japan-market models who couldn't find anything in English to learn about what they had bought. My main resource was the local VN wholesale importer who had used parts, for anything I needed to put this neglected tractor back in good running condition. A month of replacing bashed headlights etc and its been dead reliable since. Still doesn't look any prettier.

We've come a long way in creating a user community here and on a couple of other sites that makes these machines well-supported, now 20 years later. Again, thanks Bmaverick for accumulating all that documentation in one place.