PTO Pump

[Dougster]

The 6000 makes PTO speed at about 2050rpm. I understand from Bradco/Mahindra that the pump puts out about 14gal min. (hence the tank is sized for that...I think it took me about 13 gallons to fill it to the right level). Again I have the option to shift over to 1000PTO and lower the tractor rpm lower, but why bother, as the diesel needs some rpm to not lug. BobG in VA

Hi Bob - Not sure what you mean when you say the pump puts out about 14 GPM minimum. Can you elaborate? It would help greatly to know what specific pump comes in that Mahindra/Bradco kit. Any nameplate data or owner's manual data or markings or other clues regarding what pump that is would be greatly appreciated!

Dougster

 

[Dougster]

But right now, I need to finish my barn. Dougster has distracted me with talk of hydraulic thumbs and grapples.

Oh yeah! Go and blame me!!!

My Bradco thumb cylinder kit is due to arrive in CT toward the end of next week. Depending on how soon I can get down there and then find a good deal on some 3/8" hydraulic lines & fittings... I expect to have it up and running in time for a job on the 25th!

Dougster

 

[Willman]

Oh yeah! Go and blame me!!!

My Bradco thumb cylinder kit is due to arrive in CT toward the end of next week. Depending on how soon I can get down there and then find a good deal on some 3/8" hydraulic lines & fittings... I expect to have it up and running in time for a job on the 25th!

Dougster

Post some pics of that hydro thumb setup when you get it all installed!

 

[Dougster]

Post some pics of that hydro thumb setup when you get it all installed!

Assuming it works... Absolutely!

If I mess up, you'll only get the text version!

Dougster

 

[BobG_in_VA]

Hi Bob - Not sure what you mean when you say the pump puts out about 14 GPM minimum. Can you elaborate? It would help greatly to know what specific pump comes in that Mahindra/Bradco kit. Any nameplate data or owner's manual data or markings or other clues regarding what pump that is would be greatly appreciated!

Dougster

Dude,,,,all I know is that it works and works well. My 6000 weighs in (with the BH on it) at somewhere around 11K lbs and I can move that sucka' all over the place with the BH if I want to....I'm not an engineer, nor do I play one on TV, so No, I can't really elaborate (grin). I just know it works fine with the set-up that came, since it was designed by Bradco to match up properly. I think I trust them to do that.....sorry about that. BobG in VA

 

[LarryRB]

As I mentioned in an earlier post, I did the prototype Bradco/Mahindra PTO pump system for the 511, and an awesome set up it is,,, Hard to beat,

 

[Dougster]

Dude,,,,all I know is that it works and works well. My 6000 weighs in (with the BH on it) at somewhere around 11K lbs and I can move that sucka' all over the place with the BH if I want to....I'm not an engineer, nor do I play one on TV, so No, I can't really elaborate (grin). I just know it works fine with the set-up that came, since it was designed by Bradco to match up properly. I think I trust them to do that.....sorry about that. BobG in VA

No problem Bob. Just trying to get as much information about the Mahindra/Bradco offering as I possibly can. None of the dealers around here have one in stock... or even have the technical specs to review.

Regardless, I'm 99% convinced that I would go with a Prince HC-PTO-1AC (cast iron, rated: 21 GPM at 540 PTO RPM) and run it at ~360 PTO RPM (~1,700 Engine RPM) to achieve ~14 GPM flow (the full 509/511 bypass valve setpoint). The smaller Prince HC-PTO-3AC could work just as well (or possibly even better) using the 1,000 RPM PTO setting with a similar lower engine RPM.

Dougster

 

[BobG_in_VA]

Dougster, I put the BH on the 6000 on Saturday. My friend has about a 1 acre pond, and his driveway way is the dame over about 150 ft. of which the concrete/culverts (you could see 2 of them) were dry as the pond is down about a foot due to extreme dry weather here in VA. He had about a 10-12 inch maple (about 25 or so feet tall) growing out of the bank at the end of the concrete/culverts. He wanted it gone as I had told him that a rotted root on a dam will cause a leak eventually. I cut the maple down about 6 feet from the base (I stood on the top of the dam and cut it about eye level (going away from me--pls no comments on power saws I've been cutting pulpwood since I was 12).
I then stationed the Mahindra on the dam and tried to cut out the roots....no go. I repositioned the tractor/BH on the opposite side of the drainage from the tree (reaching across the 7 or so feet of creekbottom) to did out some roots. I tried this for about 10 minutes and realized I wasn't getting too far and was literally pulling the tractor down the slight incline with the power of the hoe. I got my bud to sit on the tractor seat and stomp the brakes while I tried. Nothin' doin' as it was wedged too close to the concrete abuttment.
About this time I looked over at my friend and said "I'm gonna try something diifferent"...I put the bucket (the 12" bucket) on top of the 6 ft stump, and started to rock it toward the tractor. After about 4 tries it started to give. I then pulled it over, breaking the root ball off--guess what? the root ball had grown out of and filled a 15" galvanized culvert, then spread out to the surrounding ground. Well, we got it done, pulled the root/stump away with the '57 Farmall, cleaned up the rest of the area with the BH, and found that there were 5 culverts on this dam....could only see 2 before....He mixed up some concrete and relaid the apron on the culverts. Sorry for the long post (and no pictures) but thought it newsworthy....Oh, never ran the 6000 at over 1200 rpm. BobG in VA

 

[Dougster]

Oh, never ran the 6000 at over 1200 rpm. BobG in VA

Interesting story Bob! Thanks for posting it! This proves what I've been saying all along! It's awfully nice to have all that horsepower, flow and weight behind that 511! Just wait 'til I win the lottery and get that nifty 7520!!!

Wish I could do the same with 3,000+ lbs less and at 1,200 RPM... but I'm thinking that 1,700 to 1,800 engine RPMs makes more sense as a BH operating target for my 41 HP rated engine. That's still gonna be a lot nicer than achieving ~9.5 GPM of flow at 2,500 RPM!

Dougster

 

[BobG_in_VA]

Interesting story Bob!
Wish I could do the same with 3,000+ lbs less and at 1,200 RPM... but I'm thinking that 1,700 to 1,800 engine RPMs makes more sense as a BH operating target for my 41 HP rated engine. That's still gonna be a lot nicer than achieving ~9.5 GPM of flow at 2,500 RPM!

Dougster

I've run the 6000 on 1000rpm PTO at about 1200rpm with this hoe as well. Don't like the idea that I may lug the engine down doing that so I stick with the 540PTO. I have run the hoe at about 1500rpm engine and it is somewhat more "responsive", but see no reason in running up against the bypass any more than I have to....just me I guess. Hey, you got your rear tires filled???If not you better....BobG in VA