Ola Farm Texas
Member
What is this valve for, has open and closed position.
Thanks for your help
Michael
Thanks for your help
Michael
YM1700B - whats this valve for - Picture included
- Thread starter Ola Farm Texas
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SailorBob
Gold Member
My 1700 is not a B model and it is on the other side but, I believe it is the hydraulic shot off valve. It locks the hydraulic lift. It needs to be open when the tractor is running. I never shut mine off.
OP
Ola Farm Texas
Member
good enuff for me. Thanks for the information. Bob
California
Super Star Member
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- Jan 22, 2004
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- 14,436
- Location
- An hour north of San Francisco
- Tractor
- Yanmar YM240 Yanmar YM186D
As Bob said, it prevents return of the 3-point's hydraulic fluid, so the lift stays up.
I've been using my 3-point backhoe a lot. It doesn't have enough ground clearance to drive over rough ground, until the 3-point is raised. So I leave the 3-point up by closing that valve for the duration of a backhoe project - sometimes several days.
If I simply raise the 3-point with the lift lever then the engine is under load all the time the 3-point is up. But after I lock that valve, I can push the lift lever forward and the engine no longer works against a load. The weight is carried by that valve, instead of needing a continual push from the hydraulic pump.
I've been using my 3-point backhoe a lot. It doesn't have enough ground clearance to drive over rough ground, until the 3-point is raised. So I leave the 3-point up by closing that valve for the duration of a backhoe project - sometimes several days.
If I simply raise the 3-point with the lift lever then the engine is under load all the time the 3-point is up. But after I lock that valve, I can push the lift lever forward and the engine no longer works against a load. The weight is carried by that valve, instead of needing a continual push from the hydraulic pump.
California
Super Star Member
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- Jan 22, 2004
- Messages
- 14,436
- Location
- An hour north of San Francisco
- Tractor
- Yanmar YM240 Yanmar YM186D
I just learned something from your photo - the seat on the 'B' version slides on rails like a car! I like it!
Mine is more primitive. There are three holes under the seat - front, middle, rear - that the hinge pin can go through, to set how far the seat is from the steering wheel.
Mine is more primitive. There are three holes under the seat - front, middle, rear - that the hinge pin can go through, to set how far the seat is from the steering wheel.
OP
Ola Farm Texas
Member
California that's good information. I was getting some interaction between the FEL and the Box Blade,. I am going to raise the blade and shut the valve, it sounds like the pump will benefit. I appreciate you all letting me ask such remedial questions.
As for the seat, I replaced the rubber bushings in the tube with bushing that was taken off a shock absorber, over the years.
As for the seat, I replaced the rubber bushings in the tube with bushing that was taken off a shock absorber, over the years.
California
Super Star Member
- Joined
- Jan 22, 2004
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- 14,436
- Location
- An hour north of San Francisco
- Tractor
- Yanmar YM240 Yanmar YM186D
Michael, have you discovered this smaller valve on the left side? It controls how fast the hydraulic fluid drains.
The manual says set it proportional to the weight of the implement so the implement descends smoothly when you lower it, instead of crashing down in an instant.
The manual says set it proportional to the weight of the implement so the implement descends smoothly when you lower it, instead of crashing down in an instant.
mikereid
Silver Member
Hey California, got any pics of your backhoe on the tractor? Also, what kind is it and how much did you pay?
Thanks,
Mike
Thanks,
Mike
California
Super Star Member
- Joined
- Jan 22, 2004
- Messages
- 14,436
- Location
- An hour north of San Francisco
- Tractor
- Yanmar YM240 Yanmar YM186D
Instead of pulling OFT's thread off topic (as I've been accused of a few times 
) I'll start a new thread titled California's Backhoe in the Yanmar forum. (It may take an hour or so to find my old posts that describe it.) In summary, this was a US-made backhoe originally sold by both Yanmar and Kubota dealers in the late 70's with their own trademarks painted on. Mine is in Kubota colors, but I reference some photos of the same thing in Yanmar lime green sold with the YM240 (US version YM2000.) I paid $2500 for mine in good working condition.
Now, back to OLT's topic before I get in trouble.
) I'll start a new thread titled California's Backhoe in the Yanmar forum. (It may take an hour or so to find my old posts that describe it.) In summary, this was a US-made backhoe originally sold by both Yanmar and Kubota dealers in the late 70's with their own trademarks painted on. Mine is in Kubota colors, but I reference some photos of the same thing in Yanmar lime green sold with the YM240 (US version YM2000.) I paid $2500 for mine in good working condition.Now, back to OLT's topic before I get in trouble.