That's right! I like to keep everything organized for all the viewers, but it keeps all the parts clean too. Some assemblies cannot have one spec of dirt in them, or else they can get damaged within a short period. Thanks a lot! I have some big plans for this JD 855. Best regards
No idea what you do for a living but you sir are professional. I have always shied away from hydraulics. I had the repair manual that followed you almost to a T. Bravo and thank you! I repaired my F911 Steering valve. The only thing I did differently was made my mark on the outside in a diagonal. Just a double check for me to make sure I had the right plate in the correct position and not flipped. Also, I made a jig out of plate steel that I bolted it down to while I made the repair.
Great video. I have a 318 and the hydraulic oil was coming out of steering column. I watched you video a couple of times and tore into it. I had the springs pop out three times but was able to find them each time. After I got the lines in the right place I started the tractor and it took 10 minutes before the air got out and the power steering started to work correct. Very happy with how well it works. Thanks for your help. It made a big difference. I bet I saved a couple thousand dollars and a month of it being down by not going to John Deere to have it done.
Thank you very much Steve! I'm glad this video assisted you with your repairs. Losing springs in a shop is not fun, but I'm glad you found them again to continue with your assembly. It does take a little while to get the air out, but after a few minutes it will feel so much better. Just double check your fluid level, since you loose a little bit of oil when you perform this repair. It sure saves you money and at the end of the day you did it yourself, which is super cool! Most hydraulic steering assemblies are similar, so if you ever run into another leak, you should be able to tackle it too. Thank for sharing this comment with me! Regards Andreas
Thank you for your feedback! Since I found these manuals online I am happy to share them with everyone. It's always getting harder to find complete manuals for vintage tractors nowadays...so it's lucky to find this one online! Your 955 might have some slight differences to this 855, but overall these tractors were built very similarly. I hope you find value within this video series and thank you for watching. Regards Andreas
@workbenchrebuild just re-watched this video because my 955 has developed a leak in the power steering spool. Near as I can tell the 855 and 955 are pretty much the same except for the engine HP and the hydraulic pump cc/rev both having higher numbers.
love the last 3 min of your video - we just lost a pin at the linkages and the assembly came apart - do you have a video of what it looks like all assembled properly ? You'd be awesomely appreciated :)
Thanks for tuning in and I'm glad you found value within those minutes! I have everything back on the tractor already and if you'd like I can send you pictures on this linkage. You can reach out to me via Email: workshoprebuild@gmail.com Here is a link to some drawings for this linkage and this might help in the meantime: bit.ly/3aylPVF Regards Andreas
On the sloppy FEL control valve: you might consider drilling the sloppy hole out and install a spacer (bushing) the same id as the shaft's od. Should remove the slop but unless harder steel than the frame of the apparatus the bushing will also wear. This assumes the frame is softer steel than the shaft's steel so make the bushing sacrifical but not softer than the frame steel. Looking forward to Yanmar rebuild with new pistons, wrist pins, and remanufacured head on the bored block.
That's a great idea and very good advice! Currently I do not have the best setup to get this done, but I will try my best to redo these bores for a better fit. I would love to have my lathe going...but that's currently a project too! Custom bushing would be perfect for this fix. I will see what standard bushings I can find to fix this up and if I fix it in the near future I'll have an update. The Yanmar 3TN75RJ rebuild has started already started and you mentioned many parts that will be newly installed. Stay Tuned
I followed your video on my reassembly of my f935 power steering box. Somehow I managed to turn it into a hydraulic motor. It will only turn the steering wheel clockwise and constantly. Ideas? Please help!
Hi Mark, I‘m wondering if you hooked up your hydraulic lines incorrectly? If you followed the steps I shared in this video, there shouldn‘t be an issue with the hydraulic steering assembly. You also mentioned there are 5 hydraulic lines...did you reference these before you took it apart and are they back in the same position? Each hydraulic line has a specific function and they must be correct. It seems like you hooked up your „Hydraulic Oil Input Line“ to the fitting that allows fluid to be diverted to your hydraulic cylinder (steering cylinder). This would probably bypass your valve and just allow fluid to run directly to the steering cylinder. Let me know if this helps. Regards Andreas
Mark I had the same problem. I was 90 deg rotated the whole assembly. Look on the bottom there is left and a right port. Those will go to the steering cylinder.@@WorkshopRebuild
You sure don’t mess around!! Super organized and definitely gonna be a great rig when your done!
That's right! I like to keep everything organized for all the viewers, but it keeps all the parts clean too. Some assemblies cannot have one spec of dirt in them, or else they can get damaged within a short period. Thanks a lot! I have some big plans for this JD 855. Best regards
No idea what you do for a living but you sir are professional. I have always shied away from hydraulics. I had the repair manual that followed you almost to a T. Bravo and thank you! I repaired my F911 Steering valve. The only thing I did differently was made my mark on the outside in a diagonal. Just a double check for me to make sure I had the right plate in the correct position and not flipped. Also, I made a jig out of plate steel that I bolted it down to while I made the repair.
Great video. I have a 318 and the hydraulic oil was coming out of steering column. I watched you video a couple of times and tore into it. I had the springs pop out three times but was able to find them each time. After I got the lines in the right place I started the tractor and it took 10 minutes before the air got out and the power steering started to work correct. Very happy with how well it works. Thanks for your help. It made a big difference. I bet I saved a couple thousand dollars and a month of it being down by not going to John Deere to have it done.
Thank you very much Steve! I'm glad this video assisted you with your repairs. Losing springs in a shop is not fun, but I'm glad you found them again to continue with your assembly. It does take a little while to get the air out, but after a few minutes it will feel so much better. Just double check your fluid level, since you loose a little bit of oil when you perform this repair.
It sure saves you money and at the end of the day you did it yourself, which is super cool! Most hydraulic steering assemblies are similar, so if you ever run into another leak, you should be able to tackle it too. Thank for sharing this comment with me! Regards Andreas
Great series! Thank you for the manual links. I have a 955 and I’ve been looking for the correct manual.
Thank you for your feedback! Since I found these manuals online I am happy to share them with everyone. It's always getting harder to find complete manuals for vintage tractors nowadays...so it's lucky to find this one online! Your 955 might have some slight differences to this 855, but overall these tractors were built very similarly. I hope you find value within this video series and thank you for watching. Regards Andreas
@workbenchrebuild just re-watched this video because my 955 has developed a leak in the power steering spool. Near as I can tell the 855 and 955 are pretty much the same except for the engine HP and the hydraulic pump cc/rev both having higher numbers.
love the last 3 min of your video - we just lost a pin at the linkages and the assembly came apart - do you have a video of what it looks like all assembled properly ? You'd be awesomely appreciated :)
Thanks for tuning in and I'm glad you found value within those minutes! I have everything back on the tractor already and if you'd like I can send you pictures on this linkage. You can reach out to me via Email: workshoprebuild@gmail.com
Here is a link to some drawings for this linkage and this might help in the meantime: bit.ly/3aylPVF Regards Andreas
On the sloppy FEL control valve: you might consider drilling the sloppy hole out and install a spacer (bushing) the same id as the shaft's od. Should remove the slop but unless harder steel than the frame of the apparatus the bushing will also wear.
This assumes the frame is softer steel than the shaft's steel so make the bushing sacrifical but not softer than the frame steel.
Looking forward to Yanmar rebuild with new pistons, wrist pins, and remanufacured head on the bored block.
That's a great idea and very good advice! Currently I do not have the best setup to get this done, but I will try my best to redo these bores for a better fit. I would love to have my lathe going...but that's currently a project too! Custom bushing would be perfect for this fix.
I will see what standard bushings I can find to fix this up and if I fix it in the near future I'll have an update.
The Yanmar 3TN75RJ rebuild has started already started and you mentioned many parts that will be newly installed. Stay Tuned
I followed your video on my reassembly of my f935 power steering box. Somehow I managed to turn it into a hydraulic motor. It will only turn the steering wheel clockwise and constantly. Ideas? Please help!
Hi Mark, I‘m wondering if you hooked up your hydraulic lines incorrectly? If you followed the steps I shared in this video, there shouldn‘t be an issue with the hydraulic steering assembly.
You also mentioned there are 5 hydraulic lines...did you reference these before you took it apart and are they back in the same position?
Each hydraulic line has a specific function and they must be correct.
It seems like you hooked up your „Hydraulic Oil Input Line“ to the fitting that allows fluid to be diverted to your hydraulic cylinder (steering cylinder).
This would probably bypass your valve and just allow fluid to run directly to the steering cylinder.
Let me know if this helps. Regards Andreas
Mark I had the same problem. I was 90 deg rotated the whole assembly. Look on the bottom there is left and a right port. Those will go to the steering cylinder.@@WorkshopRebuild