Yanmar LX4100

[scoutcub]

Ok, I'll be the first to answer your question Carlos.......


Don't have the 4100 but have the 4900. They are same frame size, same loader, essentially same machine with the exception of the engine. It is a great machine! I've been moving logs, rocks, brush, tilling, brush hogging, and. Loader work....and the tractor is definitely up t the challenge. Very well made, lots of power. The few issues I've had are.......lack of step on the right side......I bought one from Yanmar and installed it myself, not too difficult. And the 3 pt lever is too short....I will be adding an extension in the near future. I've put almost 50 hours on it this past summer and am very impressed with it.

Good luck!

Ps.....yes I would also like to see the "new" yanmar owners/tractors merge in this section....

 

[Raised on a Deere]

Ok, I'll be the first to answer your question Carlos.......


Don't have the 4100 but have the 4900. They are same frame size, same loader, essentially same machine with the exception of the engine. It is a great machine! I've been moving logs, rocks, brush, tilling, brush hogging, and. Loader work....and the tractor is definitely up t the challenge. Very well made, lots of power. The few issues I've had are.......lack of step on the right side......I bought one from Yanmar and installed it myself, not too difficult. And the 3 pt lever is too short....I will be adding an extension in the near future. I've put almost 50 hours on it this past summer and am very impressed with it.

Good luck!

Ps.....yes I would also like to see the "new" yanmar owners/tractors merge in this section....

Hope it all works out like that. I have to say while I was tractor shopping I was not aware of Yanmar except for grey market years ago and John Deere branded ones also years ago. As I was looking around I saw almost zero about the new Yanmar models. I made a post in each Yanmar forum ( this and Cub Cadet) about a question I had and responses was so slow I almost traded for a LS. It seemed there were no new Yanmar owners out there. Got a response on the Cub Cadet and things finally started rolling for me to catch up on Yanmar. Bought the Lx490 yesterday and take delivery late this week, waiting for rear remote install and check to clear bank.

I need a home somewhere to share and get information from time to time. Hope it is here but where ever it happens is where I will be.

 

[California]

Bought the Lx490 yesterday and take delivery late this week, waiting for rear remote install and check to clear bank.

I need a home somewhere to share and get information from time to time. Hope it is here but where ever it happens is where I will be.

Welcome. :drink:

I hope you choose here!

 

[scoutcub]

Congrats on the LX490!

I would also like to see some type of merger between cub yanmar and yanmar. I believe there were a lot of Yanmars sold with the cub name for their 3 year relationship......so as owners of these machines subscribe to TBN, there should be an easy location for them to find, but yet also associated with the yanmar forum, since the machines are unchanged and they can keep up with fresh topics. Perhaps a sub-forum under yanmar, or a lengthened title to "Yanmar/Cub Cadet Yanmar"?
There are also some Cub Cadet compacts, so there will have to be a separate cub compact forum.....

Perhaps we can take some input from members here to agree to the best course of action, then make the request thru the TBN powers....

 

[Raised on a Deere]

going nuts -- another weekend slipping by; --- the dual remote kit did not show up at the dealer until yesterday and they won't get started on putting it together until Monday. My next free day is the following weekend. One more missed weekend and I will implode. Not mad a dealer just impatient to get going after the last year of shopping and figuring out what I really needed.

Ran across on one of these threads the installation instructions for the hydraulics and as I read through it I got a sinking feeling. They have you removing the fuel tank, and a bunch of other stuff I would rather just have done my self so I would know it was put together with care. I have no reason to worry about the dealer workmanship but my luck with this kind of thing has been incredibly bad over the years. Almost wish I had taken delivery and installed it myself, but at the same time it is not a quick job so I was hoping to be able to go to work immediately upon delivery.

I am wondering about break in since my first task in bush hogging, and that is full throttle work. Instructions say firs 50 hours should be 1/2 to 2/3 throttle. Break in on most engines has become a thing of the past but I hate not knowing what this engine design philosophy is. Any thoughts on breakin. I am thinking just make sure to go through easy warm up for a while and then do the easiest bush hogging first but I will quickly run out of easy work. Maybe I should just joy ride for a while. But 50 hours worth is a bit much

 

[kenmac]

did you buy from a dealer in Alabama ?

 

[284 International]

I am wondering about break in... Instructions say firs 50 hours should be 1/2 to 2/3 throttle.

The operator manuals for my YM240 and YM186D say "Ideal conditions for breaking in a tractor engine would require operating the tractor at full engine speed under 75% full load for approximately the first 100 hours."

The operator manual for a Ford 1700 says, first, "Avoid lugging the engine...Lugging is indicated when the engine will not respond to a throttle increase." Later it says "Avoid prolonged operation at either high or low engine speeds without a load on the engine." (Emphasis mine.)

The operator manuals for a variety of Mitsubishi machines say some variation of use the tractor normally but carefully, and if you can't help but use the tractor heavily, select a lower gear than ideal.

An operator manual for Iseki/Bolens tractors advises for the first 50 hours to warm up the engine slowly prior to working, avoid quick starts and rapid braking, and to change the engine oil regularly and make sure it doesn't run low.

The only Kubota manual I have with break-in instructions says to use the tractor normally but not work it heavily.

My take: I think Yanmar's instructions spells out empirically what the other manuals describe qualitatively: Go ahead and use the tractor, but don't beat on it. I think mowing is a great start and opportunity for break-in, and it seems to exactly follow Yanmar's instructions. 1/2 to 2/3 throttle may still be near full engine speed, but it is not full rated power. Loading the engine seems to be encouraged by all of the manufacturers, as well as keeping reasonably high RPM, just don't load the machine down until it is blowing black smoke.

All of them emphasize doing a fluid and filter change fairly early on. If it were mine, I would do the mowing you have to do, and if taking it easy means doing some partly overlapping cuts, go ahead and do that. I think overheating and poor air filtration kills more machines of this type than anything else. Keep the radiator screen clean and all should be well.

 

[Katahdin]

Raised on a Deere,

I have a slightly newer manual than you which covers the LX4900, which has the same engine as your LX490 (4TNV84T). My manual states:

"Always run the tractor at less than full speed during the first 50 hours of operation."
"Avoid under any circumstances running the engine at a speed higher than needed."

I've attached a graph of the 4TNV84T performance data. As you can see, your PTO speed at 2600rpm is not full speed, which I would put closer to 3000rpm. The bore and stroke of these new Yanmar CUT engines are more square than other engines out there so they can eke out more rpms/power strokes per minute than other brands/models.



I hope this helps put your mind at ease, but I'm afraid it won't deliver your new tractor any faster.

 

[scoutcub]

going nuts -- another weekend slipping by; --- the dual remote kit did not show up at the dealer until yesterday and they won't get started on putting it together until Monday. My next free day is the following weekend. One more missed weekend and I will implode. Not mad a dealer just impatient to get going after the last year of shopping and figuring out what I really needed.

Ran across on one of these threads the installation instructions for the hydraulics and as I read through it I got a sinking feeling. They have you removing the fuel tank, and a bunch of other stuff I would rather just have done my self so I would know it was put together with care. I have no reason to worry about the dealer workmanship but my luck with this kind of thing has been incredibly bad over the years. Almost wish I had taken delivery and installed it myself, but at the same time it is not a quick job so I was hoping to be able to go to work immediately upon delivery.

I am wondering about break in since my first task in bush hogging, and that is full throttle work. Instructions say firs 50 hours should be 1/2 to 2/3 throttle. Break in on most engines has become a thing of the past but I hate not knowing what this engine design philosophy is. Any thoughts on breakin. I am thinking just make sure to go through easy warm up for a while and then do the easiest bush hogging first but I will quickly run out of easy work. Maybe I should just joy ride for a while. But 50 hours worth is a bit much

When I bought my LX490 I ordered the front aux remote kit and dual rear remotes, and installed myself. Not too bad of a job, and as Katahdin documented in his great install thread, you dont need to remove the seat, fender, fuel tank, etc. Unfortunately, the dealership will do it by the book which calls for the removal of those items....so a few more $$$. But, it should be done correctly, and they should quality check their work upon completion.
When I traded it back for the LX4900, I had the dealer install both that time....

Hope you dont have to wait too much longer!

 

[Raised on a Deere]

did you buy from a dealer in Alabama ?

Yes, Maynard Equipment Inc in Brownsboro AL. I was very comfortable dealing with Bryant. He is staying with Yanmar. Sells a lot of those 24HP rigs with loader and backhoe. It is an awesome digger and very impressive machine.

I was by there today and they had the tank, right fender, tight rear wheel off and other parts. Not a pretty sight but they are about ready to button up. Take delivery day after tomorrow since I am tied up tomorrow. Ain't that something. I have to go through all my routines tomorrow knowing my tractor is sitting there waiting for me.