New (to me) YM240D

[winston1]

On a single acting cylinder controlled by the 3 point lever the line pressures and then the down pressure of the cement mixer just pushes the fluid back. Only one hose.

 

[Todd8665]

On a single acting cylinder controlled by the 3 point lever the line pressures and then the down pressure of the cement mixer just pushes the fluid back. Only one hose.

Ah got it; your mixer had no valve to control the flow!

 

[winston1]

Ah got it; your mixer had no valve to control the flow!

The 3 point lever controlled the flow although I have a quick opening valve on the mixer cylinder inlet so I can lock it in any position. On my Bobcat I operate it by using one of the lift cylinder outlets on my loader valve. Probably sounds like that wouldn't work but I just mixed 36 bags of 80 lb sackrete a few days ago. I may owe an apology for all my blabbering in this thread but just trying to point out some of the hydraulic options on these old Yanmars. For sure, they are not all the same.

 

[clemsonfor]

I had a chance to rebuild the lift-arm cylinders today. The loader seems to lift okay but not great. There's still something clearly wrong with the curl function. Even when empty the loader took about 60 seconds to curl from tip-of-bucket pointing downward all the way to tip-of-bucket pointing upward. "Uncurling" was 5-7 seconds. The loader was able to lift the stones shown in the picture, but when I stood in the bucket along with these stones it would not lift. I had my landscape rake attached to the 3PT hitch for a bit of counter weight. My best guess is those stones weigh about 100lbs each so it seems able to lift 400lbs (plus weight of bucket) but not 150" more than that.

I'm quite certain there are problems with the loader control. As soon as I can sell the rear PTO pump that came with this tractor I'll use that to replace the loader control and hopefully the worst hoses. But it's no longer leaking fluid everywhere. It's usable as is until I can replace the control valve.

No luck getting that frozen PTO shift lever off. That bugger is really stuck on there. I used two fiber reinforced wheels trying to cut the frozen piece in half. It's in a difficult stop but hopefully I'll get that removed soon. I've got brush hogging I'd like to get to while the weather is still so nice.

Thats proably close to right for that loader for lift. If thats 400 pounds of rock and a heavier than normal bucket your 450-500 pounds up front. Maybe a bit low but i would thingk 650 would be quite a load for that size tractor

 

[clemsonfor]

Before you do anything else, I would strongly recommend that you go buy a 5000PSI liquid filled gauge and the appropriate hydraulic fittings (NOT pipe fittings from Lowes) so you can tee it into the "pressure in" port of your loader valve. That will tell you if the problem is a weak pump that can't build enough pressure or the valves. It sounds a lot like a weak pump to me.

Aaron Z

My Tractor is 2000BD with loader... I don't know why my tractor is doing this, but it doing the same thing yours is... Here's what I have found that works... When I need to lift something real heavy. I have to raise my 3 point all the way up to the top...If the 3 point is down just a little I don't have near as much lifting power with my loader...If the 3 point is up I can lift 1,000+ lbs... Now the curl... If the 3 point is all the way up to the top... My loader will NOT curl down or up...It is super slow... Now if I let the 3 point down just a little say 1 or 2 inches the curl is fast... Give it a try on your tractor and see what the experts have to say about a the fix... I know nothing about the hydraulics... My loader is hooked up off the pump with the Hoye Tractor Parts... HA-38 HYDRAULIC ADAPTER - ADD A LOADER / LOG SPLITTER Link here>>>Yanmar Tractor Parts HYDRAULIC ADAPTER - ADD A LOADER / LOG SPLITTER

WOW then these loaders are way stronger than my freinds JD855 (yanmar in green chlothes) which was hitting the releif when i went to install my wood stove and used it to lift it off the trailer. The stove weighs 650 pounds if i remember right.

 

[woolyAcres]

Thats proably close to right for that loader for lift. If thats 400 pounds of rock and a heavier than normal bucket your 450-500 pounds up front. Maybe a bit low but i would thingk 650 would be quite a load for that size tractor

I have no idea what the enormous bucket on the front my my loader weights, but despite appearances, it's not that heavy duty. In fact, it's got a number of holes in it so there's even less metal there than there should be! One that's more suited to the tractor is probably about 250#. I suspect mine is heavier but not much. Based on what California can lift (650# water tank with bucket still attached), and what Djames55 lifts with his similarly sized machine (1000#), I think mine is underperforming though not by a huge margin. But the real issue is the curl function/speed.

I've ordered my pressure gauge and will hopefully be able to plumb that in this weekend and see what's going on.

 

[woolyAcres]

This has been for sale for along time so maybe worth checking on.

Yanmar Tractor parts assorted

I STILL haven't gotten my shift lever removed but I've already ordered the replacement part. Thanks for the link. They had one they were willing to sell at a fair price. I greatly appreciate you helping me find the needed parts.