JC-jetro
Elite Member
look at thread #20
ford 1700 hydraulic problems
- Thread starter mellowrose
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look at thread #20
OP
mellowrose
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- Oct 31, 2012
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- hallettsville tx
- Tractor
- ford 1900 kubota b8200 ford 1700 all 4 wheel drive
once again i thank you for helping me out. i will definitely look at hole match up on the cylinder head. i am going to go over the rest of the things that you told me again as i possibly missed something. sometimes i get in a hurry and miss things. i dont have to have this tractor for anything right now. the flow pattern gets tricky once you get to the relief valve and aluminum plate. definitely going to try and see if i can figure that out a little better. if i decide to go to the spool then the parts break down in one of your threads will help. sometimes i make things harder than they really are by getting in a hurry.
JC-jetro
Elite Member
1700 lift piston does not have a backer seal/o-ring. It has only one double lipped piston seal. The bigger o-ring just seals the removable cylinder to the head. O-ring 21 and 22 seal the cylinder #13 to head #20. Take a look at the attachment.
JC-jetro
Elite Member
Just take your time, as they say "no good deed ever goes unpunished"
Many years ago I hand drawn flow and scan it and posted it but for the life of me I cannot find it as I catalog everything very well, following is how the flow is in order.Diffy is your oil reservoir, suction screen in diffy, suction to pump bigger dia pipe, hyd pump, pump discharge smaller dia pump, discharge flow to relief device, pressure against spring caused pressure, pressure above the spring stiffness causes relief to open to save the pump from dead heading and failure, oil goes to spool, if hyd block is used for for loader then flow is diverted two places, 3 point and loader, loader once satisfies as far as height return unused flow back to diffy, 3 point once satisfied diverts unused oil back to diffy. flow to 3 point goes to lift piston, the feed back arm dumps unused oil back to diffy at any give height, if you have a shock load such as hitting uneven ground with the weight hanging on 3 point a bit of relief is squirted out to save the seal and is immediately made up by hyd pump and this thing continues as long as tractor is on
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Tinhack
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Ops, sorry. I just got through installing the ring and backer on my 3910. Thought that drawing showed the same 2-piece ring setup. My eyes are clearer now. :ashamed:
JC-jetro
Elite Member
Oh, that's fine , my kubota does have a backer like you said. My 1700 is a 40 yr old tractor, it does not have all the refinement but still one heck of simple reliable tractor. I would not part with it .. unless my life depended on it,
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OP
mellowrose
Member
- Joined
- Oct 31, 2012
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- Location
- hallettsville tx
- Tractor
- ford 1900 kubota b8200 ford 1700 all 4 wheel drive
wrote a long reply and could not load it. problem fixed. will post tomorrow and explain.
JC-jetro
Elite Member
alright, good to hear. Messing with the spool was really the absolute last resort.:thumbsup: one solution to save your reply is to open your word processor, type and edit , you can save if you like and then cut and paste it in the reply box.
OP
mellowrose
Member
- Joined
- Oct 31, 2012
- Messages
- 31
- Location
- hallettsville tx
- Tractor
- ford 1900 kubota b8200 ford 1700 all 4 wheel drive
got the control valveapart and could not see anything wrong. blew out everything put it back togeather, installed on feedthru plate and then back on tractor. installed aluminum block and relief valve. did not try to see if it worked because i did not find anything wrong. so i thought if nothing was wrong but i am still not getting past the control valve, it must be in the wrong position. remembered something about the 3 point lif arms being all the way upfrom a post you wrote somewhere and also from my manual. look that up and there is an adjustment for the position control lever. said to disconnect the position control lever put the lift lever all the way up but not quite all the way up and start the tractor. i did that and the 3 point arms lifted up all the way. the relief valve was squealing so back off a little and it stopped. i was amazed. hooked the position control lever back up and 3 point would go up and down just fine. put my 6 foot rake on and up and down and hold just fine. so here is what i think iwas doing wrong. everytime i would check or do something i would work the lift arm lever around to se if things worked. would never leave it all the way up,inbetween down and up somewhere. so the control valve was not in right position. now with the position control hooked up it always starts in the right position. at least thats what i think. also have reading on gauge.could not have done it without your help JC. if something is not clear i will try and explain a little better. all is good.