need a part number for a 790

[kduncan]

I have a 2000 790 4X4, I got it new and have had many enjoyable hours on it. I have a leak in in one of the four metal hydraulic lines that run from the loader connect to under the tractor to the pump. I would like to replace all 4 tubes. Is there a part number for the tubes

Thank You
Kyle

 

[irwin]

I have a 2000 790 4X4, I got it new and have had many enjoyable hours on it. I have a leak in in one of the four metal hydraulic lines that run from the loader connect to under the tractor to the pump. I would like to replace all 4 tubes. Is there a part number for the tubes

Thank You
Kyle

Is this the parts? If not go to the John Deere parts look up link. here.
John Deere - Parts Catalog

Cart KEY PART NO. PART NAME QTY SERIAL NO. REMARKS
1 CH13865 BUSHING 4
2 CH19514 CLAMP 2 - 592163
LVA800966 CLAMP 2 592164 -
3 19M7139 CAP SCREW 4 - 592163 M8 X 20
19M7139 CAP SCREW 2 592164 - M8 X 20
4 AM876882 SUPPORT 1
5 TY22467 CLAMP 2
6 M801935 CLAMP 2
7 M800848 GASKET 8
8 M800853 HOLLOW SCREW 4
Cart KEY PART NO. PART NAME QTY SERIAL NO. REMARKS
9 LVA800123 LINE 1 SCV-2 (B2) (SUB FOR AM876879)
10 LVA800125 LINE 1 SCV-1 (A2) (SUB FOR AM876881)
11 LVA800124 LINE 1 SCV-3 (A1) (SUB FOR AM876880)
12 LVA800122 LINE 1 SCV-4 (B1) (SUB FOR AM876878)
13 R26448 O-RING 4
14 M85099 PLUG 4
15 M122638 O-RING 4
16 M122639 BACK-UP RING 1
17 AM102487 HYD. QUICK-CONNECT COUPLER 4
18 12M7065 LOCK WASHER 4 - 592163
Cart KEY PART NO. PART NAME QTY SERIAL NO. REMARKS
12M7065 LOCK WASHER 2 592164 -
19 19M7868 BOLT 2 592164 - M8 X 30
20 LVU800768 SPACER 2 592164 -

 

[kduncan]

Thanks That's the parts, you wouldn't know where the best deal on something like this.

Kyle

 

[irwin]

All that stuff can either made, or fabricated by any shop that can bend and crimp steel lines.... however if you want to buy it ready to install without bringing the parts to a shop.. the Deere dealership would be your place.

The cheapest would be a hydraulic shop.. or even a NAPA if you have one handy..(note: not all NAPAs do that kind of work..but they'll know who does)

 

[Scotty370]

Don't want to be the bearer of bad news, but each of those lines are $77.87!!!! Thats according to my JDParts.com account!! Ouch!!! I'd be lookin' for options! ~Scotty

 

[kennyd]

What is leaking on them? And why do all four need to be replaced?

 

[kennyd]

Don't want to be the bearer of bad news, but each of those lines are $77.87!!!! Thats according to my JDParts.com account!! Ouch!!! I'd be lookin' for options! ~Scotty

There are not to many options...the banjo connector on the one end eliminates replacement with a standard hose-and I bet any NAPA will turn the job away in a hurry. If you had to pay a hydraulic shop to make them up I bet they would charge twice the price in just labor.

 

[Scotty370]

I agree Kenny! O-Rings from JD gotta be less than $20- a copy!!

Edit: oops! Banjo fittings.........

 

[irwin]

Hmmm, I missed the banjo fittings.
Well it all depends on where the leak is. We need pictures, and point out the exact location of leakage. Those are some good steel lines, are they rotted through?

 

[kduncan]

They have a lot of rust on them and fluid is pouring out of one. I agree at $80 each I think I can find another way to repair them I hope I can find a cracked o ring. How about a splice in the tube do you think that will work?

 

[DWCox]

A fellow 790 owner! The maneuverability of these 790s is equaled only by their relative power and dependability!

I grew up in a farming community, and if you contact an old-school farmer I am willing to bet he would help you on how to plumb it yourself (though you would have to borrow specialty tools).

 

[irwin]

They have a lot of rust on them and fluid is pouring out of one. I agree at $80 each I think I can find another way to repair them I hope I can find a cracked o ring. How about a splice in the tube do you think that will work?

I wouldn't use a compression fitting splice.. too much pressure, it must be bent to shape and flared on the ends with the proper fittings and unions. NAPA will have the fittings and unions...BUT, if the lines are rusted, and/or pitted you just might be better off spending the money and doing it right.

 

[kduncan]

I put pictures up here if anyone wants to take a look

http://www.bloodtrackers.us/jd.html

It looks like I have been is salt

 

[kduncan]

After looking at the pictures you can see why I wanted to replace all 4 tubes. I will check with the auto parts store and see if they can make them up with high pressure hoses. I got the baby new and have all most 500 hours on it

 

[Wayne County Hose]

Eeesh. Okay, here's the deal. You could use Ermeto compression fittings. They are NOT your low pressure brass. If I remember correctly, they are good to 4k or 5k psi depending on size. Or, you could install fittings in place of the banjos. Banjo fittings are either metric or British pipe thread, parallel of course, or, BSPP for short. Most JD stuff I have run across are BSPP. You can get straight or 90 degree adapters that go from the banjo to JIC. Then, you could run a standard hydraulic hose. You can take your steel lines and banjo bolts to a hydraulic shop and get a price on replacement fittings/lines. I will tell you this much, it will almost certainly be more than what the lines cost from JD. The adapters are roughly 25 bucks each, then the hoses. But, you could price them out, maybe I'm wrong. You don't want to use auto store brake line. You want .049" seamless hydraulic tube.

Just looked at your pics. I wouldn't bother with Ermeto. Those lines are shot.

Andy

 

[Scotty370]

The pictures just put me into the "replace em" camp!!