1980 Ford 1700

[woody]

Some may remember me talking about my neighbors tractor that belonged to her father and I had tried to buy, well back in Dec 2020 she decided to take me up on my 2 year old offer and sale it to me. I changed all the fluids and filters and with a little work got that old tractor to running. I have not really worked it hard until this weekend and I decided to do some bush hogging with it. with weeds and kudzu over six feet tall that little tractor was working hard. After about an hour the three point quit lifting the mower and it would just drag the ground so I loaded it up and went home after I got home the lift was working again but I checked the transmission and the oil looked milky so I changed it putting six gallons of new oil in it and everything was working fine. Until I went back to finish the bush hogging and about an hour after starting the lift quit again, but not completely this time, so I did finish before coming home. my plan is to clean the screen in suction line, that I didn't know was there till yesterday and replace the seal on the lift piston. what else should I be looking for?

 

[woody]

The screen in front of the radiator really did it's job had to clean it several times. Looks like I will be replacing it soon, if I can find one. It has some rust and holes in it.

 

[CausticUrbanCoast]

Airation/cavitation or is the oil mixed with something?

You said you changed fluids, did you change/clean/check your hydraulic filter screen/strainer?

 

[BenL]

I would clean the filter for sure, I’m not an expert on diagnosing. Could be the filter being clogged up, combined with usage and heat thinning the fluid enough to escape the seals.

 

[woody]

Airation/cavitation or is the oil mixed with something?

You said you changed fluids, did you change/clean/check your hydraulic filter screen/strainer?

I think maybe aeration, but no I did not clean the screen because I didn't know it was there until after I was done.

 

[woody]

Ben, that's a good list and E and J on that list is what I was going to do first. Thanks

 

[CausticUrbanCoast]

Cavitation is extremely bad for your hydraulic pump, as it is starved of fluid it will start to wear and grind itself up.

A dirty filter / clogged strainer are common causes for it, the other is a leak somewhere that drops your fluid reservoir too low.

 

[woody]

the fluid level has not changed but I do think I have some aeration happening.

 

[Thomas]

As other wrote also air filter.I like to air hose blow inside engine compartment like dash wire connections etc.

 

[woody]

okay I ordered some parts to do this with a lift piston seal and O-rings for both lift and suction strainer. hopefully it all goes well.