[AT] It's trying, but... no lift

[Scott Williams]

Today I mounted a new set of heavy duty flail blades on my Alamo SHD74 flail
(thank you, Flail-Master.) This is mounted on my '72 Massey Ferguson 135
vineyard diesel.  The new blades work great, did a LOT of clearing, but
after a few hours, the 3 point wouldn't lift the mower.  It would try, but
it would only lift the front of the mower, and sort of shudder like it was
trying to lift it (the mower weighs over 900 lbs.)  I have not yet changed
the hydraulic oil in this machine (not being familiar with changing EIGHT
GALLONS of oil at a shot... though I'm sure that's nothing compared to some
of your machines.)  I was reading on this list from last winter, and reading
about using a cut barrel to catch the oil, and maybe digging a pit for the
barrel if necessary, so thanks for that info. It's been on my to-do list,
but I really need to get to it now.

 

What else would suddenly cause the 3 point to stop lifting?  It wasn't
having any trouble when I started, so it seems unlikely to me that I
suddenly didn't have enough fluid (unless there's a new big leak I don't
know about.)  Crud or something caused a valve to stick open (or closed)?
Something worse?  Other than change the fluid, what should I be thinking
about?

 

I suppose there's a chance that there's a lot of water in the oil.  I was
climbing up and down some really steep banks, could water have gotten
someplace and caused this?

 

Either way, I'll get some oil at TSC and do a change, and see what happens.

 

Scott in Penfield NY



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