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Ford Tractors Discussion Forum
Show Parts for Model:

Re: 755 backhoe Blown a hose

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Ecnerwal

10-01-2013 18:00:45
24.25.139.129



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Get about 20 gallons of fluid (here you CAN use 134D, but plain old, usually cheaper, hydraulic is fine) and the nose package filter (755 implies 4500 as a platform, AFAIK, but I suppose it could be something else.)

Take off the grille. Drain about 4 gallons out of the nose above the pump. There is a plug on the fitting. Undo 4 bolts and find the screen that's in the fitting at the top of the hose leading to the pump (bottom of the nose sump) take it out and clean it, replace.

If your power steering comes from the nose sump, pull that screen out and clean it. Replace. If power steering is on the pump, don't worry about that, it doesn't apply to you.

Pull the big round top cover, replace the big pleated filter.

Go down to the bottom of the subframe on both sides, find plugs, dump about 7-8 gallons per side.

That's the bulk of it - you can't really get "it all" without disassembling everything, draining every hose and cylinder, which is impractical.
Button up the system (fix your hose somewhere in here) and start pouring fluid into the nose reservoir through the big filter hole. Get it up onto the dipstick, wait a while, recheck. Crank a bit, recheck, top up. Start it up, move the hoe and loader around, recheck, top up...

Unless you love doing this sort of thing and have a really bad case of penny-wise-pound-foolish, strongly consider replacing the whole set of hoses next to the one that actually blew - they are probably of an age, and the rest will follow soon enough. In my case two were obviously much newer, so I left those two alone and replaced the other 4 when I blew one. Keep track of which hose goes where. Keep everything clean. Aluminum foil can be useful.
You'll have to check your local supply options to see if it's cheaper to get hoses as parts from New Holland or have hoses made up locally at a hydraulic shop.
This post was edited by Ecnerwal at 18:02:35 10/01/13.

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OH - 961

10-01-2013 20:30:52
66.19.61.167



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 Re: 755 backhoe Blown a hose in reply to Ecnerwal, 10-01-2013 18:00:45  
I don''t think a 755 is on a 4500. Sounds like the model of the whole machine.

That is a totally different critter, I believe, and I can't help very much on those.
If you are talking about the hoses that go from the tractor into the boom, it might be wise to bite the bullet and replace them all, unless some of them look quite new. That is not a chore you want to do again any time soon.

Maybe someone who knows better than I will chime in on this.

Myron

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JF in CT

10-02-2013 06:02:16
70.194.4.123



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 Re: 755 backhoe Blown a hose in reply to OH - 961, 10-01-2013 20:30:52  
Ecnerwal may be right. I have a 4500 with a 755 on it (the largest hoe offered). He is also dead on about the screens. My 4500 also uses the frame as a fluid storage tank and there is a drain on the lowest part of the left frame on the inside. Also, if you drain the milky fluid into 5 gallon pails and let it sit for several months the oil should seperate so you can pour it off the top. One other PITN I noticed about mine (yours may be the same) is that the return hose (to the main tank) dumps fluid right on top of the filter. When the fluid is cold and the filter pressure bypass spring kicks in the dirty fluid dumps right past the filter into the screen. My screen was always clogging up. I built a little plate on top of the filter to deflect the fluid to the sides. I also drilled a new hole in the filter rod so I could double the pressure of the bypass spring. Have never had an issue with the screen clogging up since.

Jim

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