Loader Yanmar YM240D

[brads522]

New to this tractor thing, the father-in-law just gave us a Yanmar YM240D. The tractor runs good but the hydraulics don't work and one of the metal hydraulic lines on the YFL-240 loader is broken completely in half.

1. do I need to replace the hydraulic pump?
2. Can the loader lines be bought new or will it have to be rebuilt/repaired?

Sorry to sound like an idiot, but just don't have a clue...

 

[California]

One of my hard lines was replaced by a piece of flex hose at that location. It works fine and this obviously is an easier fix. Estimate $25 to have a short hose made up for you.

Troubleshooting: loosen the fitting at the hydraulic pump output (smaller line) and see if anything comes out. (Caution - can be high pressure, dangerous, stand clear!) More likely it is what we just saw described in another thread here, a problem back at the control valve and/or 3-point lift piston.

About the only thing that kills these pumps is deadheading it, running against a closed quick-disconnect etc where there is no pressure relief valve in the circuit. And that isn't likely unless somebody modified something.

 

[brads522]

Thanks, will do some trouble shooting before I start throwing any money..

I will also look for the posts your referring to, hopefully I can figure this baby out!

 

[California]

... hopefully I can figure this baby out!

After a couple of minor projects you'll realize these YM2000/YM240 Yanmars are about as simple to maintain as a bicycle.

If you weren't aware: the original YM240 Service, Parts, and Operation manuals published by Yanmar-USA are still available. I got mine off Ebay. Loaders and implements for these were provided by US suppliers, so generic parts from your local hydraulic shop etc work fine. And Hoyetractor .com stocks any Yanmar-specific parts you might need. Overall, these are the best supported of any 30 year old Japanese tractor.

Finally: you might like to take a look at the YM240 info referenced from my sig, below. Original sales brochure, etc.

Welcome aboard!

 

[Dieselcrew]

Welcome I was the one bout a month ago with a 240d w/ what I thought was a bad pump. Make sure that under the seat the pressure line block has a jumper hose connected when the loader is not hooked up. I will send you a picture of what I had to do to get my 3 pt working.

 

[brads522]

Thank you! I do still have the loader on the tractor, but maybe I could try something like this for the interim until I get the line on the loader fixed..

 

[brads522]

Update: I replaced the starter switch so now I can actually start and run the tractor correctly. I messed with the hydraulic on/off valve under the seat and voila the hydraulics started working. (at first). Once the tractor runs for a bit the hydraulics work spotty and eventually quit working all together. I shut the tractor down, fire it up the next AM and it is the same thing all over again, any ideas?

I am patching the lines on the loader back together via compression fittings for the time being.

One more thing, there is a rod associated with the gear shift that sometimes moves out the front of shift tower (for lack of a better term) and when it does that tranny/hydraulic fluid runs out the void it leaves at the back of the tower. Maybe that is something that just came loose from inside the transmission or something?

 

[Smoody]

Have you cleaned the hydraulic screen?

also pictures of what you are referring would help

 

[brads522]

I haven't cleaned the screen yet, maybe that should be my next step? I will try and get some pictures this evening...

 

[Smoody]

I haven't cleaned the screen yet, maybe that should be my next step? I will try and get some pictures this evening...

yes you should clean the screen, drain all the hydro/trans fluid before taking the screen out or you'll have a huge mess. should be about 4.5 gallons in it, likely there are 2 drain bolts under there, each will drain out about 2+/- gallons