New Holland 1920 hydraulic upgrade

[JMarsillo]

Hi all, I'm not much of a socialite on forums, usually just picking and reading random information. I have fixed my old 51 TO 30 many times picking through the info here and elsewhere. Now I've upgraded
I saw Whitbread's page on upgrading his New holland 1620 while searching for answers to my own problems. (Big thanks for that thread!) pretty much the same layout as the 1620,the difference is that hydraulic filter is in the way on the right side fender so I plumbed the 4 spool in on the left side.
I wanted to add rear lines to my 1920 so I can be lazy and stay in the seat while plowing snow. The OEM style add a valve kits are pretty pricey for one extra set of hoses and a valve. I got most of the parts from Surpluscenter, with a few hoses from the local Napa at quite a bit more than I wanted to pay.
I ended up adding a 4 spool valve and a 3 position single spool valve for about the same price, but a little more elbow grease.
I now have a hydraulic top/side link a rear remote line, provisions for a front grapple/bucket thumb and a power angle plow and grader blade. The grader blade is still kind of a work in progress, just threw it together last night to check the function and if the salvaged cylinders I had worked.
While I had the wheel off I gave it some fresh paint, fixed the rotted nut and washer on the ROPS mount.

 

[Atvjoe]

What a awesome set up, I want to do the same thing to my 1920, thanks for the info.

 

[Atvjoe]

What a great setup, I want to do it too. By any chance have you done a parts list of what you purchased. Because your setup is exactly what I want to do. Thank you for the tread.

 

[JMarsillo]

What a great setup, I want to do it too. By any chance have you done a parts list of what you purchased. Because your setup is exactly what I want to do. Thank you for the tread.

I got most of the parts from surplus center and used stock length hoses except for one or two locations.
The 4 spool was a prince 8 Gpm Item #9-7864
The single spool control valve was a cheif 21 Gpm item # 9-12698

I used 3' hoses for the side link (located on the left side of the tractor)
4 ' hoses for the top link
3' hoses for the rear remotes

From the pump outlet to the r spool I had a custom hose made @ 6'6" the outlet from that goes to the single spool 3 way valve via a 3' hose. Then the outlet from the single spool goes to the return with a 4' hose.

I'm not really a professional when it comes to all the fittings and Jic/fip/npt/sae fittings. Honestly I had a tough time getting everything correct and bought more fittings than I needed. I just matched the specs on the valve to the ones on the hoses... But everything came out fully functional and leak free. I used thread sealant on the NPT fittings too.
If I had to do it differently I'd get those fittings for the 4 spool valve to offset the (depth?) of the connection to leave wrench space. The way it fits in the fender is really tight and I had to assemble all the lines sequentially so I had room to wrench the fittings.
I also used 3/16" rubber between the valve bodies and the sheet metal... Seemed to be a good thing to do.

 

[Atvjoe]

I got most of the parts from surplus center and used stock length hoses except for one or two locations.
The 4 spool was a prince 8 Gpm Item #9-7864
The single spool control valve was a cheif 21 Gpm item # 9-12698

I used 3' hoses for the side link (located on the left side of the tractor)
4 ' hoses for the top link
3' hoses for the rear remotes

From the pump outlet to the r spool I had a custom hose made @ 6'6" the outlet from that goes to the single spool 3 way valve via a 3' hose. Then the outlet from the single spool goes to the return with a 4' hose.

I'm not really a professional when it comes to all the fittings and Jic/fip/npt/sae fittings. Honestly I had a tough time getting everything correct and bought more fittings than I needed. I just matched the specs on the valve to the ones on the hoses... But everything came out fully functional and leak free. I used thread sealant on the NPT fittings too.
If I had to do it differently I'd get those fittings for the 4 spool valve to offset the (depth?) of the connection to leave wrench space. The way it fits in the fender is really tight and I had to assemble all the lines sequentially so I had room to wrench the fittings.
I also used 3/16" rubber between the valve bodies and the sheet metal... Seemed to be a good thing to do.

Thank you so much for the info. I going to start ordering my parts. Have a Happy Thanksgiving.