Yanmar YM2500 3pt Photos and Description

NathanB · Jun 23, 2005

Everyone, thanks for all the help you gave me in diagnosing my issues and helping me get this YM2500 up and running(pretty well).

I will try to answer most of the questions everyone had and list out some of the stuff I found.

YM2500 Information:
Oil Filter: Carquest 85334
Oil: ~5-6 Quarts
Hydraulic/Transmission Fluid: I used JD 303 - 5 Gallons

Attached are two pictures.
1. 3pt LOCK. Tighten it to lock the 3pt.
2. Speed lever. Controls the speed of the 3pt hitch.
3. This turnbuckle is used to adjust the movement/sync of the 3pt hitch. My tractor guy says it's very easy to BREAK your 3pt if you don't know what you're doing.
4. This square metal bar is supposed to move FREELY on the bar it's attached to. I had a problem where my 3pt would not stay in one position, it was either ALL the way up or ALL the way down(this is called draft mode). My tractor guy lubed up this whole assembly and adjusted #3 a little to get my 3pt hitch working properly. Now when I put the lever in a specific place the 3pt hitch stays there.
5. This lever selects "regular" or "draft" mode. Draft mode supposedly means the 3pt goes all the way up, or all the way down with just a touch of the control lever on the right side of the seat.
6. This is the friction plate I had to adjust in order to make the lever stay in the place I wanted. If it's loose the spring under the seat constantly pulls the lever back to center.

My tractor was serviced near Mobile, Alabama, at Southern Farm Equipment. 7120 Highway 90, Irvington, Alabama 36544. 251-957-2857

chriswheeler · Jul 4, 2005

Hi Nathan,
It sounds like I have the same problem. In the picture, lever #5 selects the "draft control" Mine doesn't seam to go into draft control in either position. I was wondering what position the lever is placed in to ingage draft control and how should it act when I do?? I have the full set of manuals with this tractor but this lever and function is not addressed well in any of them. I'm going to go out this afternoon and lube mine up a little, see if I can get it to work. Disengaged it sounds like the 3 point will hold a set point better. I have been having trouble getting a implement to hold in any position without setting up the lock in front of the seat. Thanks for the good info. Out here in rural Nevada there aren't many of these Yanmars around that I've seen yet.
Chris

Inspector507 · Jul 4, 2005

Nathan,
Those people who rely on dial-up access to the net will cuss you up one side and down the other waiting on your inline pics to load. Just attach them, as you did, and if they want to look, they will.
Just some friendly advice.

NathanB · Jul 5, 2005

( Hi Nathan,
It sounds like I have the same problem. In the picture, lever #5 selects the "draft control" Mine doesn't seam to go into draft control in either position. I was wondering what position the lever is placed in to ingage draft control and how should it act when I do?? I have the full set of manuals with this tractor but this lever and function is not addressed well in any of them. I'm going to go out this afternoon and lube mine up a little, see if I can get it to work. Disengaged it sounds like the 3 point will hold a set point better. I have been having trouble getting a implement to hold in any position without setting up the lock in front of the seat. Thanks for the good info. Out here in rural Nevada there aren't many of these Yanmars around that I've seen yet.
Chris )

I would first check on the equipment under the seat. Specifically piece #4. If that square metal bar doesn't move freely on the round bar it's attached to, then the whole thing simply won't do what it's supposed to even if your draft lever works right. Mine was rusty and didn't move well at all.

chriswheeler · Jul 5, 2005

Checked that, all is free and lubed. Linkage is properly attached to the left ( as you face the rear of the tractor) lift arm. With lever #5 all the way up ( vertical position) the implement seams to hold position better. With the lever all the way down (horizontal position) it seams to be touchy and doesn't hold a implement set point well. My bet here is that all works, I just don't know what I'm doing. I notice that there is a linkage adjustment on the link rod. Could this have anything to do with it?? One last question, What should it be doing when it is working properly??? Thanks for your time, I know you should enjoy your 2500, quite happy with mine so far. I think this is the last small detail I havn't figured out yet.
Chris

NathanB · Jul 6, 2005

( Checked that, all is free and lubed. Linkage is properly attached to the left ( as you face the rear of the tractor) lift arm. With lever #5 all the way up ( vertical position) the implement seams to hold position better. With the lever all the way down (horizontal position) it seams to be touchy and doesn't hold a implement set point well. My bet here is that all works, I just don't know what I'm doing. I notice that there is a linkage adjustment on the link rod. Could this have anything to do with it?? One last question, What should it be doing when it is working properly??? Thanks for your time, I know you should enjoy your 2500, quite happy with mine so far. I think this is the last small detail I havn't figured out yet.
Chris )

Yes, the turnbuckle in the middle of the link did need adjusting for me. That's the part that supposedly can ruin your 3pt hitch if it's not adjusted correctly.

chriswheeler · Jul 9, 2005

If out of adjustment can ruin the 3 point, proper adjustment would be critical. I bet if you look at yours with the 3 point all the way down, the adjustment is how much space is inbetween the square bar on the end of the arm and the button that acuates the hyd lift?? That has to be what is getting adjusted by the turnbuckel. If you have time Nathan, could you look at yours with the lift all the way down and let me know what the clearance between the square at the end of the rod and the hyd button is on yours. I think this will be the key to getting mine to work. I'll adjust to match yours and post the results. Thanks again Nathan,
Chris

joe_padavano · Jul 10, 2005

I've been following this thread because I have a JD850, which is basically a YM2500 with green paint. My JD service manual describes how to adjust the 3pth turnbuckle as follows:

1. Raise 3pth all the way up
2. Loosen locknut on turnbuckle
3. Adjust turnbuckle to obtail 0.25" - 0.40" of free play at the tip of the lift arms (the arms connected to the rockshaft, not the 3pth arms)
4. Tighten locknut.

That's it.

Joe Padavano

chriswheeler · Jul 10, 2005

Thanks Joe,
Going to print your post and check it out next weekend. That is exactly the info I was looking for. Headed back to the other house now and won't get back to Nevada until next weekend. From the 3 point function, I'm guessing that with the lever #5 in the upper position, tractor has a normal 3 point. With lever #5 in the down postion, draft control is engaged, is this correct?? If I can get this to work properly it will be a handy feature to have. Thanks to both of you for your help. As a afterthought, I hope that my failure to understand this function hasn't messed something up on the tractor in the year and a half that I have had it!!
Chris

wlm007 · Jul 10, 2005

Hey Guys-Interesting stuff you have here. I'm having the same problem, lift seems to lose pressure and bush hog slips down. The first thing I thought about was to check the hydraulic fluid and that's when the head scratching began. How do you check the fluid level and where is the filter?? I found what appears to be two hyddraulic lines that run to the front of the engine to what appears to be the pump, but I don't see a filter or a place to check the fluid. I was wondering if the transmission fluid serve both the transmission and the hyd system? I recently replaced the water pump and had the radiator flushed. This is an old tractor but runs like a champ so I don't want to screw it up. I live close to the dealer in Irvington so I might pay him a visit. I have a way of turning a hundred dollar job into a three hundred dollar with out much trouble; however, I usually learn something along the way.
Lynn McMahan