Woods 3pt Backhoe

Anonymous-0 · Jun 29, 2012

Does anyone know how many gallon per minute PTO driven hydraulic pump is needed for a Woods BH750 3pt backhoe? All the owner manual has in it is that the pump is 2.10 cubic in

Thanks
Jason

Brad Buchanan · Jun 29, 2012

Hey Jason, I was doing some research on three point backhoes and some have their own pump driven by the pto shaft.

The ones I were looking at (liberty) were 5 to 8 foot models and the recommendation was for horsepower to drive the pump on the backhoe.

These models recommended 30+ horsepower.

There may be some available that run off a remote from the tractor but I haven't found any yet.

Hope you find something that works,

Brad

BCnT · Jun 29, 2012

alot is gonna depend on hose size and 540 or 1000 rpm...a standard engine drive pump of 2.30cu is about 21gpm.
i've used some of those 3 point hoes with plug in hydraulics...most would barely pull hat off my head...if you already own this hoe..think biggest gpm pto pump you can buy if you really want to dig.

RickB · Jun 30, 2012

Do the math. There are 231 cu. in. in a gallon. 540 rpm x 2.1 cu. in = 1134 cu. in per minute = 4.9 GPM flow from the pump @ PTO speed. A 21 GPM pump feeding that little hoe will be uncontrolable.

BCnT · Jun 30, 2012

no,i didnt do the math...got the specs for the closest pump to 2.1 in the Surplus Center catalog...it said 23gpm for that pump plus the smallest pto pump Prince has listed is 21gpm...i dont need your attitude...got plenty of my own pal.

RickB · Jul 1, 2012

My post is a response to the OP, not you. An explanation of how to calculate GPM from a cu.in. spec isn"t an expression of a bad attitude, it shows the OP how to get the info he wants on his own.

Since you jumped all over me anyway, take a minute and learn that fixed displacement pump output is porportional to input speed, so the 21 GPM 2.3 cu.in pump you reference at "engine speed" would put out far less at standard PTO speed of 540 RPM.

Anonymous-0 · Jul 1, 2012

21 GPM is WAY too much for a little hoe like that. I have a Cat hoe on my track loader with a higher output pump for the hoe that is rated 26.5 GPM no load. The main boom cylinder is 4 1/2" diameter and it has over 10,000lbs of digging force with the bucket. I think 6 to 8 GPM would be more than plenty for a little Woods backhoe. I rented a hoe for my skid steer that is 16.8 GPM and I never needed full throttle to get enough speed.

BCnT · Jul 1, 2012

ya know i'm to the point i dont GAF what any of yall have to say...i'm done.

Woods 3pt Backhoe

Anonymous-0

Well-known Member

Brad Buchanan

Member

BCnT

Well-known Member

RickB

Well-known Member

BCnT

Well-known Member

RickB

Well-known Member

Anonymous-0

Well-known Member

BCnT

Well-known Member

Similar threads