fittings for loader project

[Patrick62]

Pix when I get a camera over there, I promise.

This project is getting somewhere, but not as fast as I would like. Life gets in the way. Anyway, created some arms for this thing building it on the back of a 1/2 ton pickup. Using parts purchased quite a few years ago, I am now trying to sort out the fittings and hoses to have a idea what is gonna be needed here.

The valve was reasonably priced, and I think it will work:

3 SPOOL HUSCO VALVE
New HUSCO directional control valve. Originally built for use in skid-steer applications. Three spring-centering, double-acting cylinder spools in parallel to each other. First spool has detented fourth position float, third spool has fourth position detent. No handles.

SPECIFICATIONS
• Model 9110C13C02F01M534
• 25 GPM rated flow
• 3,000 PSI rated pressure
• Open center
• Main relief valve fixed at 3,050 PSI
• Adj. work port relief valve on 1st spool preset to 3,400 PSI
• SAE 12/16 IN/OUT ports
• SAE 10 work ports
• 3 bolt mount
• Overall size 13-3/8" x 8-1/4" x 3"
• Shpg. 33 lb.

The main cylinders, two of them have what appears to be SAE 8 ports on them, and the smaller cylinders I got to tip the forks are smaller than that, like a SAE 6 (I think).

So I think I am going to need a bunch of adapters to convert these to either NPT, or JIC hoses. And some TEE's in there as well. Thought I might try and create a clamp with the third section of the valve. If someone has some insight as to what to expect with the "detented forth position float" and the last spool with "fourth position detent". I figure it will be a case of try it and see what happens and if I don't like a certain function on a valve, I can swap hoses around until it is livable.

-Pat

 

[jthornton]

Discount Hydraulic Hose seems to be the best place to get fittings. I just order my fittings for my splitter build there.

http://www.discounthydraulichose.com/

They also have a pdf that explains all the fittings.

JT

 

[kevin j]

Eaton aeroquip had great little booklet but the web address has changed.

NPT, oh please no! The only advantage is that hoses are easier to get in the farm stores, and those are usually NPSM, sealing on the chamfered nose ID, not on the NPT outer threads. NPT giant PITA. NPT adaptors will be sealing on the OD of the NPT threads.

Stay oring boss ports, and SAE 37 degree (called JIC for years) flare hose ends. Oring face seal is much better, but hard to get for consumers.

4th position detented float valve section is used on a loader boom to float the bucket on uneven ground but not power down into the ground. Commonly for a scraper blade. Position 1 is up, 2 is neutral, 3 is down, all spring loaded to neutral as normal manual control valve. However, in down, if you go past down into the position 4 detented float it should connect A and B to tank, (instead of one to pressure and one to tank for powering down). boom then floats over uneven ground. P will go to tank most likely open centered system with fixed pump, or be blocked if you have a closed center system with variable pump.
You can decide if you want that for a function for what you are building.
If not, easy to defeat by limiting the spool stroke from going into that last notch. Cannot add it easily to a valve without it, but easy to defeat on a valve that has it.

 

[gulity1]

If you want some help contact me I re-plump tractor and trialers for a living Jthorton helped me witht he diffenerce of NPT and NPSM--thank you very much. I have most of the fittings and hose you might need. I have NPT NPSM, JIC 37*,and Seal Locfititngs and hose 1/4, 3/8, 1/2, 5/8, 3/4. I should have enough to take care of what ever you need.