New hydraulic top link won't clear the lift arms on my B-series

[Outinstickssnafu]

Pipe fittings in a hardware store ... pipe fittings are somewhat limited in hardware stores in our parts. The 9/16 unf thread would be the first thing to stump them. That and most of the fittings there have seams and not steam pipe grade.

I'd probably go for banjo myself, less sticking out. I would say it's more likely he's find the fitting closer at one of the local enzed hose places that dot the coutry side.

https://www.enzed.com.au/

 

[i7win7]

top links with check valves have a hose connection block that can be rotated to the left or right

Category 1 Hydraulic Top Link 18 1/8" - 26 3/8"

Our Category 1 Hydraulic Top Link with double-piloted check valve prevents cylinder drift and holds cylinder in position. This feature makes our hydraulic top link the best in the market! Cylinder Features: Part Number 06003 Category: 1 Pin hole: 3/4" Ball width: 1 3/4" Min length: 18 1/8"Max...

www.agristoreusa.com

 

[LD1]

If it really is BSPP, no worries. Those fittings to adapt to the ORB and 90° are available too.

6059-06-06 | 3/8" ORFS Male x 3/8" BSPP Male Adj. 90°

Check out the deal on 6059-06-06 | 3/8" ORFS Male x 3/8" BSPP Male Adj. 90° at DiscountHydraulicHose.com

www.discounthydraulichose.com

 

[npalen]

LouNY yes you're right you tracked down the top link I have! I've circled the fittings from the hose kit which go directly into the port on the top link.

View attachment 735686

As you can see it has a rubber o ring on the 9/16 UNF end, which pushes into the tapered part of the female port:

View attachment 735688

So when screwed all the way in looks like this:

View attachment 735689

The other end of the elbow is 3/8" BSPT.

So I gather the elbow I am looking for is one which has "9/16 UNF" (AKA "SAE -6" or "-06") on one end, and 3/8" BSPT on the other? Do I need to specify anything extra to ensure that it comes with the rubber o-ring as well (assuming it is necessary)?

A side question someone might be able to help with...since we are talking hydraulic fittings. I've googled high and low and can't work it out. It turns out the hoses supplied with the top link have BSP (parallel thread) fittings on each end. For some reason, all of the fittings supplied with the hose are BSPT (tapered thread). I would have thought the fittings would need to be parallel thread (BSP) fittings too, so that they can be freely screwed all the way into the female BSP fitting on the hose and press down on the o-ring (see photo below) to create a tight seal. I raised this with the dealer and they assured me they are compatible, yet to my lay-man mind I cannot see how they would seal tightly.

View attachment 735690

The o-ring will be compressed and the tapered seats make contact before the parallel threads "bottom out" in the tapered threads. The attached, taken from the Discount Hydraulic Hose online catalog tells how this works with imperial fittings (no o-ring) at least.

Edit: Click on the thumbnail of the pic.

 

[mikester]

Get a manual top link or buy a bigger tractor?

 

[ROUSTABOUT]

Pipe fittings in a hardware store ... pipe fittings are somewhat limited in hardware stores in our parts. The 9/16 unf thread would be the first thing to stump them. That and most of the fittings there have seams and not steam pipe grade.

I'd probably go for banjo myself, less sticking out. I would say it's more likely he's find the fitting closer at one of the local enzed hose places that dot the coutry side.

https://www.enzed.com.au/

We have pipe fittings on our log loader and tractors, skidders, plows...

I'd just screw a street ell in the cylinder. Use the pipe to JIC adapter in the street ell, connect the hose straight on that. Plus, why come he can't put the other end, the rod on the tractor and put them fittings out near the more open area at the implement? Or he could get a hydraulic shop to cut the stem off cylinder barrel and weld a block on with pipe threads on the side and put a piece of pipe alongside the cylinder barrel to get away from tight area.

Our biggest log loader will pick up over 24" diameter butt tree with limbs and top still on it, 100 ft long, grabbing it at the butt end. Big pines we can get 3-20', 1-16', and 1-10', before we top it. Drag it through a stand alone delimber with a topping saw. Plus it has a lower saw for cutting log into lengths. All remote control. Who do you think hooked all that crap up?

 

[Outinstickssnafu]

I'm not sure why you're telling me about your log loader? My remarks are pretty much on point, seeing as I am fairly familiar what might be found in the typical hardware store in the bottom end of the world. It's hit and miss at times. I don't put that much faith in the stuff sold unless it's steam pipe rated but I've seen it used on some hydraulics, even a union, admittedly not the highest pressure circuit but still ... Pipe fittings sold in the US would undoubtedly be much better quality and more consistent.

 

[Tractor Seabee]

Go to the "Surplus Center" web site and look at all the fitting options, bet you will find your solution. Order from them and you will get it quicker. They have a great tech group also. Support our advertisers that help keep this forum going.

Ron

 

[LD1]

We have pipe fittings on our log loader and tractors, skidders, plows...

I'd just screw a street ell in the cylinder. Use the pipe to JIC adapter in the street ell, connect the hose straight on that. Plus, why come he can't put the other end, the rod on the tractor and put them fittings out near the more open area at the implement? Or he could get a hydraulic shop to cut the stem off cylinder barrel and weld a block on with pipe threads on the side and put a piece of pipe alongside the cylinder barrel to get away from tight area.

Our biggest log loader will pick up over 24" diameter butt tree with limbs and top still on it, 100 ft long, grabbing it at the butt end. Big pines we can get 3-20', 1-16', and 1-10', before we top it. Drag it through a stand alone delimber with a topping saw. Plus it has a lower saw for cutting log into lengths. All remote control. Who do you think hooked all that crap up?

They make steel street 90° fittings to that are rated for hydraulics. But it isnt a NPT fitting. ITs an ORB fitting.

And congratulations....you use pipe fittings on high pressure hydraulics....still dont make it smart and certainly not something to brag about doing or advocating others do it.

And the issue with reversing the cylinder is that the hoses would move much more so than the the way he has it.
IF you lool at any cylinder orientation on loaders, backhoes, excavators, etc.....you want the base end connected to whatever the hoses are connected to you dont have to account for lots of movement and hoping nothing snags when in operation. The rod end gets connected to whatever is being moved away from the hoses.

Look at your typical loader. Curl cylinders are mounted with the rod side on the bucket.....so the hoses dont have to move much. The lift cylinders are typically mounted what some would consider "backwards" with the rod side toward the tractor. But thats because the hoses dont come from the tractor...per-say. They come from the loader tube where they are mounted.

 

[ROUSTABOUT]

They make steel street 90° fittings to that are rated for hydraulics. But it isnt a NPT fitting. ITs an ORB fitting.

And congratulations....you use pipe fittings on high pressure hydraulics....still dont make it smart and certainly not something to brag about doing or advocating others do it.

And the issue with reversing the cylinder is that the hoses would move much more so than the the way he has it.
IF you lool at any cylinder orientation on loaders, backhoes, excavators, etc.....you want the base end connected to whatever the hoses are connected to you dont have to account for lots of movement and hoping nothing snags when in operation. The rod end gets connected to whatever is being moved away from the hoses.

Look at your typical loader. Curl cylinders are mounted with the rod side on the bucket.....so the hoses dont have to move much. The lift cylinders are typically mounted what some would consider "backwards" with the rod side toward the tractor. But thats because the hoses dont come from the tractor...per-say. They come from the loader tube where they are mounted.

Yeah, but if you're 25 miles from town and just want something to work... A lot of what You said has to do with the efficiency of engineering. Seen it both ways. Done it both ways. Them are the small unmentioned hiccups in my world. If I have a problem, it's a big one.