Forward stopped in the first 2 gears

[Tim McCarley]

I have a Yanmar YM2000D. A couple of days ago I put it in reverse. It bogged down and would not move. Then, it wasn't bogging down but still would not move. Then, it finally reversed. Now, reverse is fine in low and high range. But, the first two fwd gears does nothing in low or high range. The hight gears move fwd in low and high range.
Also, the tph has never worked right since I bought the tractor. It's like something is bypassing. BTW, it has a front end loader on it. Kind of irrelevant as far as fwd and Rev goes. Thanks for any and all advice.

 

[Kernopelli]

I would take the top of the trans case off and look for something obvious, like a 1st/2nd gear shift fork malfunction. When you say the three point hasn't ever worked right, can you explain in more detail?

 

[Tim McCarley]

Yes, it has a front loader. To operate the tph I have to shut valve to the loader. The tph will raise when I open valve under seat, but immediately drops back down unless I raise it and then shut valve under the seat. At that point I can turn the valve back on wo the loader and it will not work unless I open valve under the seat and allow the tph to go all the way down.

 

[ROUSTABOUT]

Sounds like a shift fork done come unaloosened on you. You need to park it in a good place. Put it in neutral. Pull the top of transmission off. Take pictures of suspect and non suspect items. Someone can help you then.

 

[Kernopelli]

On the TPH, sounds like whoever plumbed the hydraulics for the loader robbed the flow to the TPH. Compare how your joystick valve is plumbed compared to this Yanmar Tractor Loader Install Instructions Hoye Tractor Yanmar Tractor Parts is the Guru of Yanmar and Aaron is very helpful and always a good source of help, I doubt you can have a problem that Aaron hasn't encountered and fixed. They also have a tech forum Yanmar Tractor Support Message Board - Index page

 

[Tim McCarley]

On the TPH, sounds like whoever plumbed the hydraulics for the loader robbed the flow to the TPH. Compare how your joystick valve is plumbed compared to this Yanmar Tractor Loader Install Instructions Hoye Tractor Yanmar Tractor Parts is the Guru of Yanmar and Aaron is very helpful and always a good source of help, I doubt you can have a problem that Aaron hasn't encountered and fixed. They also have a tech forum Yanmar Tractor Support Message Board - Index page

Thank you all so much. Gonna work on these issues when I get off work today.

Also, I need a pin for my bucket and can't find anything like it anywhere. Gonna send a picture.

 

[Kernopelli]

OK... never seen one of those ! I assume the curved piece is a keeper of sorts. I would probably take a measurement and try to match a hitch pin to it and provided the end is able to pass completely through, retain it with a lynch pin or clip. It would also be fairy simple to fabricate a new one using off the shelf metal stock.

 

[Tim McCarley]

Yes I have already done that. I am a machinest, so I have access to all types of machinery and metal. The problem with putting a pin in it is it will constantly be in the dirt and most likely come out a lot. I don't have a way to bend and mold the spring steel without taking the temper out of it.

 

[Kernopelli]

It looks like the spring steel on the old pin is riveted on. Can you simply grind the rivet head off and either; rivet it back on, drill and tap the pin and bolt it on or plug weld it to the new pin using the rivet hole?

Just curious, is that from a Yanmar loader?

 

[Tim McCarley]

Yes it's from a Yanmar YM2000D w/loader. I have lost one and was trying to find an exact match.

 

[Kernopelli]

Yes it's from a Yanmar YM2000D w/loader. I have lost one and was trying to find an exact match.

I meant is it a Yanmar brand loader, not just what kind of tractor is it on. If it's a Yanmar brand , it should have the model number somewhere on it and will start with the letters YFL.

 

[Tim McCarley]

As far as I know it is a Yanmar loader. I will check for numbers when I get home today. If they are stamped on it, that would be great. There are no decals on the loader stating the name.

 

[Tim McCarley]

Problem solved. Works better that original.

 

[Tim McCarley]

Problem solved. Works better than the Original.

 

[Kernopelli]

Good idea!! Now to the next issue , have you peeked in the trans case yet?

 

[Tim McCarley]

Yes. I had a broken fork. I have one on order. As far the tpl, it is plumbed wrong. Gonna fix it all this weekend. Thank you so much for the help.

 

[Tim McCarley]

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On the TPH, sounds like whoever plumbed the hydraulics for the loader robbed the flow to the TPH. Compare how your joystick valve is plumbed compared to this Yanmar Tractor Loader Install Instructions Hoye Tractor Yanmar Tractor Parts is the Guru of Yanmar and Aaron is very helpful and always a good source of help, I doubt you can have a problem that Aaron hasn't encountered and fixed. They also have a tech forum Yanmar Tractor Support Message Board - Index page

On the TPH, sounds like whoever plumbed the hydraulics for the loader robbed the flow to the TPH. Compare how your joystick valve is plumbed compared to this Yanmar Tractor Loader Install Instructions Hoye Tractor Yanmar Tractor Parts is the Guru of Yanmar and Aaron is very helpful and always a good source of help, I doubt you can have a problem that Aaron hasn't encountered and fixed. They also have a tech forum Yanmar Tractor Support Message Board - Index page

OK, the loader appears to be plumbed wrong. I understand the schematic on how to plumb it correctly. However, the way it is plumbed now, coming from the high pressure side, it goes in the top of the tph valve. Then it comes out of the side of same valve to the in side of the joystick (loader)valve. . The hose coming out of loader valve is then returned to tank.

So, the way the schematic is, what do I do to the port that is being used to return to tank, and the port that is being used to supply the loader valve?
Sorry if this does not make sense and is confusing.
Thanks again for all of your help.

 

[Kernopelli]

The way I plumbed my Mitsubishi is just like the link from Hoye's. I cut the pressure line ( small diameter line coming from the pump)and used a 12mm compression fitting to run a hose from there into the FEL control valve. Then used another 12mm compression fitting on the other side of the cut pressure line and that was connected to the "out" ( can't think what that port is actually called right now) port on my FEL valve. For the valve port that runs to tank, I was able to use NPT pipe fittings to replace the fluid level dipstick on the trans case, I ran a hose from that to the return to tank FEL control valve port. Mitsubishi/Case IH makes an adapter that bolts to ports on the rear trans case to plumb from the valve to that adapter and it's cleaner and side steps the process of cutting the pressure line from the pump. I didn't have one, didn't want to pay the price for one and should have just machined one....... so I went the inexpensive/ easy route and cut the pressure line. Yanmar may or may not have something similar? That might be a question for the Yanmar forum