[AT] 800 Ford tractor 3 point

[Richard Walker]

Dean, on the older Ford N's and Ferguson TO-20's and 30's, if it's just 
a loss of prime from a long period of non-use, an old farmer's trick is 
to stick the nozzle of an air blow gun into the fill hole of the center 
housing (contains the pump, transmission guts, and hydraulic fluid), 
stuff a rag loosely around the tip, and with the engine running have 
someone repeatedly moving the 3-point lever up and down.  Won't need 
much air pressure, any excess will bleed off around the rag to avoid 
pressurizing the housing excessively.  Getting the internal pump primed 
might take a few minutes. Or sometimes it won't work at all if the 
problem is more serious.

With an engine mounted pump on later tractors, like your 800, sometimes 
doing this same air trick into the center housing can create enough 
pressure to force oil through the supply line to prime the pump.

Change or clean your hydraulic filter also. Chances are this hasn't been 
done for awhile anyway.  Crud buildup inhibits oil flow.


Richard


> I would appreciate some help from you Ford tractor experts.  Have 
> successfully sold the Ford Jubilee at a good price but not the boom 
> pole that was attached to the 3 point. We need that for lift other 
> stuff in the future. So we attached it to the 3 point on a Ford 800 
> only to find out the 3 point isn’t working at all. The dipstick shows 
> being full of hydraulic oil. The next step is to try to bleed system 
> at the pump up font.   Assuming we are successful at that and it still 
> doesn’t work what would you recommend for further diagnostic checks?  
> The 3 Son’s have no knowledge of tractors at all and I have very 
> limited knowledge regarding the N Series on up.  I’m trying to help 
> since they are allowing me shop space free of charge.
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