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Ford 1900 hydraulic problem

T

Timmytwoguns

New User
I have a ford 1900 tractor. I have a 5 foot brush hog attached to the back. It works great however after about two hours the hydraulics stop working and the brush hog can't be raised or lowered. If I park it and come back the next day it works fine for two hours and the same problem happens again. I might hear a very faint higher pitch squeal coming from around the engine area about the time the hydraulics stop working but not completely sure on this. Does anyone have ideas on how to fix this?
 
Squeal noise sounds like a relief valve in continuous bypass mode. If true, your oil must be getting VERY hot, which causes rapid pump wear
and internal leakage. This would also explain why it works fine with cold oil, but not hot oil.

Next time you start it from cold, listen to the engine carefully as you raise and lower the brush hog. If the engine labors as the brush hog
is being raised, that is normal. If it keeps laboring after it reaches full height, that is not normal. Try lowering the handle just a tad
until the engine is not laboring, and yet still keeps the brush hog where you want it.

If this fixes the squeal noise, it should help the no-lift issue somewhat with cooler oil, however pump damage may have already occurred.
 
You will need to drain the oil first. The large bolt in the center needs to be removed first and you may need to loosen the one on the other end of the tube so you can move the tube down enough to get the strainer out. Remove the 3 bolts on the flange and slide the strainer out. It is a wire mesh screen that can be washed and reused. If you are lucky enough to not tear the gasket you may be able to reuse it. The orings on the tube are usually ok to reuse as well.

Mark
 
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