Front-End Loader Ford 7108 Hydro lines wrong?

   / Ford 7108 Hydro lines wrong? #1  

Quinn629

New member
Joined
Feb 12, 2015
Messages
8
Location
Bellevue
Tractor
Ford 1620
I just picked up a Ford 7108 loader for my 1996 Ford 1620 tractor. None of the quick disconnects on the tractor or loader lines were marked in any way. So I guessed at which of the 4 lines plugged into where until it "worked". BUT...I noticed when I push forward on the control stick...the boom raises UP. When I pull back on the control stick...the boom lowers DOWN. The bucket controls work correctly. According to every other loader I have operated and the owners manual to this one, that should be the opposite way around. I took the two hydraulic quick disconnects to the cylinders that raise and lower the boom and swapped them. Then it didn't work at all. Seamed like it was fighting against itself and didn't want to damage anything so I put it back the way it was. So my question is: Do I have a problem in the way the Quick Disconnects are hooked up? Meaning I have one from the bucket cylinders plugged into boom cylinders vs/ver and its working but not hooked up 100% correct? OR are the hydraulic fittings swapped where they connect to the loaders stainless lines out front? If anyone has a photo of how the ford 7108 or even 7308 loaders 4 quick disconnects hook up, and what QD is hooked up to what line, and a pic of the connections at the front of the loader that shows what boom cylinder flexible lines are supposed to plug into which of the stainless fittings at the front location as well. I am hoping this can be solved by simply putting the 4 QD fittings in the right location. Any help is greatly appreciate.
 
   / Ford 7108 Hydro lines wrong? #2  
My first thought would be to simple trace the two lines back from boom cylinders back through any intermediate manifolds and reverse them at QD, that should work... Once you get them right, mark then (on both sides of QD's) with colored Zip Ties... I think you may have gotten off track some where in your tracing process.... Can not see any reason by just reversing the two (correct) lines would not reverse boom operation...

879686005650.jpg


Dale
 
   / Ford 7108 Hydro lines wrong?
  • Thread Starter
#3  
DL Meisen, I had the exact same thought. And that was the first thing I did. I took the two lines coming from the boom cylinders and swapped them at the QDs. Like my post stated, at that point it was like the hydraulics were fighting against one another. So I swapped it back. What I am wondering is: because I had no idea which of the 4 QDs plugged into where and just randomly guessed until it worked like it does now: I am wondering if I have some goofy combination of the 4 hooked up wrong causing the fact that when I simply swapped the 2 QDs for the boom cylinders it didn't work at all? Another possibility is that during its past, someone purposely swapped the hard fittings to the cylinder lines and the hard lines at the front of the loader to intentionally make it this way because that's how they wanted it? This is the reason for wanting pics of how one of these is plumed properly. Yes, once I get it right - colored zip ties are going on for sure! P.S. It is possible that when I swapped the two lines - that I grabbed one line to the boom cylinder and one line to a bucket cylinder and swapped those instead? I don't think so though but I can try it again to double check.
 
   / Ford 7108 Hydro lines wrong? #4  
I think that your thought in the PS is right on. Reversing the boom lines should have reversed the way the control works and nothing else as far as I know.
 
   / Ford 7108 Hydro lines wrong?
  • Thread Starter
#5  
DonRybak & DL, Thank you! At least my 1st instinct to fix the problem appears to have been correct. I will confirm tonight. I was wondering if swapping the lines was the way to go or not, and apparently it is - I just did that part wrong.
 
   / Ford 7108 Hydro lines wrong? #6  
I have a 1620 and the loader and have to mulch leaves tonight anyway if the snow lightens up and I'll snap you some pics.. right from the dealer they were color coded splotches of paint on the connections on both sides to avoid this not sure if they are still there don't take it off very often anymore. I never really paid attention if two on top were in and out or what the combination is but I'll look tonight..
 
   / Ford 7108 Hydro lines wrong? #7  
I have a TC 33 with a 7308 attached if this helps.1017181429a_Burst01.jpeg
 
   / Ford 7108 Hydro lines wrong? #8  
I want to know where you found a 7108/7308 loader LOL. I've been hunting for one for my 1650 for 6 months and have only found one for sale, but the dealer wanted $3000 for a bent one. No thanks.....

I'll snap a Pic of how my lines are run. My 1620 came with the front mount 715b blower so hopefully the hard lines aren't any different.
 
   / Ford 7108 Hydro lines wrong? #9  
here is my 1620 set up.. bottom two are paired to lift cylinders top two paired to curl.. Hope this helps..
IMG_0209.JPGIMG_0211.JPGIMG_0212.JPG
 
   / Ford 7108 Hydro lines wrong?
  • Thread Starter
#10  
So one of my guesses was correct. When 1st attempted to reverse the QD lines for the boom actuators - what I actually did was switch a hydraulic line for the boom with a hydraulic line for the bucket. Now that I actually swapped the correct dang lines, it (boom) now raises when the lever is pulled back and lowers when pushed forward as it should. Now, I am glad I did this post - mykleh: Those pictures will prove helpful in the near future. Last night I began disassembly of my 7108 as I am having it blasted and painted and I am pulling the hydraulics all apart anyway to paint the cylinders. I took before pics but yours will help in getting this thing back together the way the factory meant it to be after my paint is complete. Thank you.
 
 

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