AC 8550 hydraulics with an Air seeder

bkrapp · Nov 2, 2010

Hello all, has anyone ever used an 8550 allis to run an air seeder? I am looking at a JD 730 disc drill which I believe needs 3000 psi and 12 gpm to operate. Do you know what the hydraulic system on the 8550 is capable of? If it isn't sufficient are there upgrade or makeshift alternatives? Has anyone used one of these tractors for an air seeder? Any and all help is greatly appreciated! Thank you very much!

Anonymous-0 · Nov 2, 2010

Tractordata says 74 gal/min on the pump which seems high. I would have thought around 30 gal/min.

cadet trooper · Nov 2, 2010

The 8550 had mostly engine problems but one issue it didn"t normally have was the hydraulics and 74gpm sounds about right with an on demand OC hydraulic system just make sure the oil cooler is clean from debris because it may get a little warm.

glr62 · Nov 3, 2010

power off remote with piston pump, 20 gpm, return to right hand filter area. will get diagram and send to ya tomorrow.

bkrapp · Nov 3, 2010

Hey thanks! Did you do this to your tractor? What type of drill were you using? Please email to [email protected] thanks again

cadet trooper · Nov 4, 2010

glr62"s idea is better than using that much gpm to drive the air pump would cause a lot of bypass causing a lot of heat.

glr62 · Nov 5, 2010

to get 70+gallon out of hydralics is kinda a sales bs line. 21 gallon from piston pump, to work 3 point and remotes, gear pump, 9gpm, to work cooling steering pto (2 wheel drive), geroter pump,15 gpm for clutch amd trans lube and then 8550 has another pump on front trans for steering. so when add all these together ya get "sales" idea of hydralic flow.
now to run orbit motor for air cart, take pressure line from remote to motor and then return to the line from 3 point valve, it is the big line coming off valve to filter. cut steel line and add a "tee". return to this "tee" so that return oil is filtered from the air cart. you can either "bunge" cord the remote valve or set detent up so lever stays engaged when operating. make any sense??????

cadet trooper · Nov 5, 2010

Makes sense to me glr62 as a sales person and only sold one 8550 it never seemed to lack hydraulic flow and pressure for my customer who was always saying his neighbors who owned IH4586s and JD8630s and 40s complained of slow raising big discs and heavy tools.Sales literature always seems to stretch the truth a little,Oh let"s see who did they get that from?Possibly the news media! LOL

bkrapp · Nov 8, 2010

Not really, I'm not by the tractor but do you have any pictures of your tractor that you did this to? Has it been used to run the orbit motor on an air drill? Thank you very much

Blake

AC 8550 hydraulics with an Air seeder

bkrapp

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