Oil ran too low - Need to fill and bleed the system

[Redlander]

I am a new owner of a Yanmar 2310D with front end loader
Everything has been working just fine
But today after doing some heavy lifting the loader has lost its controls
(I assume the PTO also has lost power)
The oil level in the box has fallen below the low tide mark
I have found a small leak at a union ... which is easy to fix

My question(s)
Do Yanmars need a particular type of oil in this box (it houses the transfer as well)
Will I need to bleed the hydraulics

 

[Redlander]

I'm now also confused about the third lever beside the loader lift and tilt controls
I played with it today but of course that was after the oil ran low
It's inlet is from a Tee before the oil enters the manifold
Can't see what it controls ... it seems to be a shut off ... clicks on/off

 

[winston1]

Your 2310 should have John Deere 303 or equivalent fluid. I have used Walmarts Super Tech transmission/hydraulic fluid and also Tractor Supplys Traveler brand transmission/hydraulic fluid. Important thing is to get the combination because of gear additives. Some in cold climates use automatic transmission fluid. I have no idea about the climate in Queensland.

These systems are self bleeding.

The pto and hydraulics are separate. The pto is strictly gear operated. It should still be operating.

Would a picture of you 3rd lever be possible? :confused3: Just wondering if you have one of those buckets with a grapple action like this. Midway Sales - Yanmar F22D refurbished tractors for sale Australia wide. 26Hp 4WD Loader | , Midway Sales - Queensland, New South Wales and Victoria Tractors, dozers and implements for sale

Welcome to the forum. :welcome:

 

[bacrow]

Wow, Winston. That one is a beauty. Where do you keep finding this stuff?

 

[winston1]

Wow, Winston. That one is a beauty. Where do you keep finding this stuff?

Knowing Redlander is from Australia I just googled Yanmar Australia and saw that. No idea that is what he has but thought it interesting.

 

[Redlander]

Thank you Winston

I've bought a 20lt pail of Mobil fluid which says is compatible with John Deere transmission/hydraulic fluid
The transfer case took about 10lts to fill ... so it was way down before the loader stopped
Everything is back to normal thank you

When I said `My PTO' I meant to say `My TPL'
So yes the PTO is separate you're absolutely correct and well-spotted!

I still haven't worked out what the third valve does if anything
(My bucket is just lift/tilt, not one of those 4 in 1 with the grabber)
The valve seems to be an isolator between the manifold to the TPL
To complicate matters, a ball valve has been fitted inline just beneath it on the way to the TPL
I can lift the TPL only by closing this ball valve

I need to find out how to upload a picture
However, for now, many thanks. I'm now one of your fans of this forum

 

[Redlander]

This is the tractor with what seems to be an original front end loader
Let's see if I uploaded this correctly

 

[Redlander]

And this is the valve manifold
The mystery valve is on the extreme right hand side in the picture
Beneath it inline is the ball valve that needs closing to activate the TPL `lift'

 

[Redlander]

The valve is fed from a tee that brings in fluid from the case

The hose from the bottom leg of the tee loops up and enters the manifold at the third valve

 

[Neat 1500]

Not a Cold climate old Queensland, nice and warm. I use Peak oil's (Caltex) Agritrans in my 1500 and found it excellent. Maybe the plumbing is a bit screwed up? They installed the ball valve to get flow to the 3PH?

 

[CurlyDave]

... Maybe the plumbing is a bit screwed up? They installed the ball valve to get flow to the 3PH?

That ball valve is brass, not steel. I don't know the hydraulic pressure on this tractor, but most of the brass valves like that I have seen in the US are only rated for 150 to 200 psi or so. Nowhere near typical hydraulic pressures.

 

[winston1]

Would your loader valve happen to have a tag identifying it? I have no idea what is going on there. If I am counting right the valve has 8 openings and you have 9 hoses coming off of it counting the one that has the tee. I suspect one of those openings is power beyond and should go back into the transmission sump. Other than the hoses going to the loader cylinders can you identify where the other hoses go? That should be 4 hoses.

Good pictures. Thanks.

Only reason a brass ball valve would be ok there is if that opening is the tank return line. A no pressure line.

 

[California]

Darn it that wasn't ready to post. [so I deleted it]. More clearly stated:

I wonder if the ball valve shuts off the tank return line to redirect fluid (under pressure) to the 3-point.

 

[winston1]

Darn it that wasn't ready to post. More clearly stated:

I wonder if the ball valve shuts off the tank return line to redirect fluid (under pressure) to the 3-point.

Sort of what it sounds like but doesn't seem the correct way to be plumbed.

 

[kenmac]

1st 1 I've seen plumbed like that (with a ball valve in the circuit):confused3:. You should be able to operate the 3 point without opening or closing a ball valve. Good looking tractor & loader. Who made the loader ?.

 

[California]

The curved arms and the linkage on the bucket look like an OEM Yanmar loader that was offered to me by an importer.

 

[Redlander]

Yes, on the loader there are no after-market plates or any numerals of any kind at all that I can find
Which makes me think that the loader may well be original equipment

About the hydraulics plumbing - I did a schematic diagram and tried to upload it here with no luck
I'll take a photo of it and upload that

I have a feeling that the third On/Off valve no longer functions as it should and the ball valve is a `patch'
I'd sooner get the original set up going
As it is, ths valve needs to remain open all the time.
To lift the 3PL, I then need to close the ball valve with the 3PL lever in the Up position
And the 3PL lever must be in neutral or the bucket controls do not work
It all works but I feel it needs sorting out!
Ideas?

 

[winston1]

The side view picture of the loader valve seems to show a tag. Could that be cleaned and made legible?

 

[clemsonfor]

Yes, on the loader there are no after-market plates or any numerals of any kind at all that I can find
Which makes me think that the loader may well be original equipment

About the hydraulics plumbing - I did a schematic diagram and tried to upload it here with no luck
I'll take a photo of it and upload that

I have a feeling that the third On/Off valve no longer functions as it should and the ball valve is a `patch'
I'd sooner get the original set up going
As it is, ths valve needs to remain open all the time.
To lift the 3PL, I then need to close the ball valve with the 3PL lever in the Up position
And the 3PL lever must be in neutral or the bucket controls do not work
It all works but I feel it needs sorting out!
Ideas?

Thats not right? You should be able to move your bucket and adjust your 3pt at the same time. I dont have a loader but i have run tractors with them and these small yanmars i dont thing are plumed any different.

 

[California]

This is the tractor with what seems to be an original front end loader
View attachment 346694View attachment 346694

And this is the valve manifold
The mystery valve is on the extreme right hand side in the picture
Beneath it inline is the ball valve that needs closing to activate the TPL `lift'
View attachment 346696

I just put the following photos in a new thread (because nobody would ever find them in the future under this title).
This loader was in the warehouse of a tractor importer here, in 2007. They said it is an original Yanmar-Japan loader and it came over with a YM2220 or similar size FX model. Mark (over on some other tractor board) said he has seen these before. Look familiar?