Search results

I still have not had time to spend on the 555 but I finally received the manual today. I did think of another possibility. Keeping in mind that the boom works by itself but adding another function it slows or stops. Is it possible that the piston inside boom cylinder is leaking? Could it have...

Hi, It's been a week and I do not have any new updates yet. Just been too busy with work. My next step is to talk with the person I spoke to on the phone that operated a 555 for years. They sold it with 15k hours. I think I can better understand him if we were talking in person. Thanks rScotty...

No, I have not received the manual yet. In the parts diagram in the description of the part it states what the pressures are. Also, when I took the two valves out there is an aluminum band around the body of the valves and it has the pressure stamped into it. The boom and dipper are 3500 psi...

Today I took the valve back out for the dipper and took the valve out for the boom. They are both rated at3500psi. I checked the measurement between the jam nut and the body of the valve for the boom and compared it to the dipper valve I took apart. They were the same. So, I'm hoping I got...

After thinking about it, I should not have taken the valve apart that far. I should have left the end cap and jam nut in place. I'm sure that determines the pressure of the valve. Thanks for the diagrams. My parts book does not have those pages. I'm glad they list the pressures on the valves. It...

Well after looking at the hose routing I realized I made a mistake. The pressure relief valve I took off yesterday was for the boom and not the dipper. Today I took off some kind of valve for the dipper spool valve and took it apart. I did not see anything wrong with it. There is a part of it I...

Thanks Scotty. That sound like my issue exactly. I do not have a shop manual yet so I'm kind of guessing at this point. I did take off a valve yesterday that was on the top side of the dipper spool valve. I think it was an adjustable pressure relief valve. Under the cap was a jam nut, adjustable...

Testing from the pump would be hard to do. If I have a flow problem when using a combination of functions, would testing individual cylinders probably still show low? Each function by itself seems ok but could be slow and I just do not know it be a new owner. I have noticed lowering the...

At what RPM should I perform this test at? Since it is a flow issue does it matter what cylinder, I check? If I tested the boom and dipper, could they be within spec since my issue is a combination of two or more or would they still show low flow tested individually?

Today I drained the hydraulic tank and removed the inlet hose. There was no screen or snap ring. Someone removed it and never installed it. Since I was thar far I removed the entire inlet hose to the pump to make sure nothing was stuck inside it. Nothing was. After putting everything back...

Those are all good points. You mentioned oil wetting. Do you basically mean oil leaks around the suction hose? I'm thinking a suction hose leak while running would cause cavitation of the oil and degrade it fast. And then possibly leak while not running. I can glance at mine somewhat through the...

I bought the tractor from the original owner. It's a one owner tractor and I do have the original operator's manual and parts book. I did notice last night that there are quite a few used service manuals online for sale. I like the idea of building a pressure gauge set up. That will be my last...

My tank does have to be drained and there is supposed to be a screen inside the inlet hose for the pump or tank outlet hose, same hose. It's right under the tank. I agree with you. It is not easy to get to like the hydraulic filter and probably has never been serviced.

Thank you for the responses. The hydraulic filter is new. The operator's manual does show an outlet screen under the outlet hose. It's supposed to be services every 1200 hours. The amount of maintenance with this tractor is huge. I'm going to take a guess and say it probably has never been...

Hi, I'm new to the site. I did find a post related to my concern and did reply to it but the post is 4 years old and have not received a reply yet so I figured I would ask the question again. I just purchased a Ford 555C in great condition. I am having an issue with the backhoe. I can combine...

Hi, I'm new to the site and I know this is an older post. I just purchased a Ford 555C in great condition. I am having the exact same issues as you. I can combine and movements on the hoe even at idle with full stick movements and everything works except when I am moving the dipper in and then...