Woods back-hoe question.

[century3045]

I have a woods 7500 and I like it because it is 3pt. hitch and I don't have to fool with the subframe to mount it to my Century 3045. I really like the looks of the groundbreaker woods 9000 and it has a thumb for the bucket also. Are there a noticeable amount of digging power between these two units or is it mainly the reach? I am using a pto pump and reservoir, is this any better than using the tractors hydraulics or does it really matter?I think my pto pump is 6gpm and the one for the 9000 is 9gpm, I'm not real sure what the tractor remote hydraulics are producing, does anyone know off-hand?If theres a big difference in the digging force I would consider an up-grade trade-in but I imagine I'd have to cough up a lot of boot. Just wondering if it would be practical, thanks.

 

[spb1971]

You get power from hydraulic pressure not GPM's. If you use the same tractor with different backhoes, you really will not see much of a difference.

 

[SHIFTY]

century3045 -
GPM'S will affect the speed of the backhoe and how it reacts,The PSI is the force behind the cylinders or power.The Woods 9000 is too large and strong to put on a 3 point behind a Century/Branson large chassis without some concern of oversizing it. I would have no problem with a 7500 GB as you have already

 

[Chipperman]

spb1971
You are correct that the power comes from the pressure but the speed comes from the GPH. Woods should be able to recommend how many GPH he needs. On another note I do not know if Century3045 was planning on using a sub frame or not but I would strongly recommend not 3 pt mounting a 9 ft hoe on the hitch. That would be just asking for trouble and an articulating tractor (split in the middle) Hope that helps.
Chipperman /forums/images/graemlins/smile.gif /forums/images/graemlins/smile.gif

 

[Reg]

</font><font color="blue" class="small">( spb1971
You are correct that the power comes from the pressure but the speed comes from the GPH. Woods should be able to recommend how many GPH he needs. On another note I do not know if Century3045 was planning on using a sub frame or not but I would strongly recommend not 3 pt mounting a 9 ft hoe on the hitch. That would be just asking for trouble and an articulating tractor (split in the middle) Hope that helps.
Chipperman /forums/images/graemlins/smile.gif /forums/images/graemlins/smile.gif
)</font>
Ya think so ?
I would have thought that any breaking due to too large a hoe would be at the top link - and hopefully the top link itself would fail first. The sub-frames use the same two lower points as the 3 pt at the back and they run rails up to the mid section. I can't see "breaking in half" as likely.

BTW, I think I've figured the Woods 9000 sub-frame vs C50/C50HL sub frame issue. On Branson BL20A loaders Woods says to remove the loader's rear rails, just remove some bolts, there are no later instructions to reinstall them. I'm guessing that Woods assume the Hoe sub-frame is an adequate replacement. The Woods loader has different rails, they are L section and bolt beside the drawbar "pocket". The C50/C50HL rails are all one piece and cannot be unbolted.
Warranty issues aside, if you cut them off you would be in a BL20A situation, the hoe frame would probably be sufficient.

 

[century3045]

Thanks all, I researched today and found that the 9ft. requires a tractor hp. of 25-70 so I Imagine I fit in that category. The 9ft. has 17in. more digging depth than the 7500 and 1500lbs. more digging force. I guess the larger cylinders and larger pump account for that. I have broke/bent a couple of cat 1 hitch pins digging up stumps so I'll agree that the subframe would be a must. My next thing is to find out the price difference. I like the red color woods uses, matches the tractor and alo the thumb for the bucket. That would be handy. Bottom line will be the price difference. Do I need the extra for the extra cost or Am I just a kid in the candy store with a pocket full of change an a sweet tooth? I'll just have to see how much change it will take. Thanks for all the input. I like my7500 but always seem to need a little more depth and little more digging power.

 

[spb1971]

Agree with you 100% that speed comes from GPM's, but you need power more than speed with a backhoe. Both together are actually the best. I would not 3-point mount any backhoe on a compact style tractor. You are just asking for trouble.

 

[Reg]

I've heard it more than once that the PTO pump can run a back hoe fast enough for most tasks just above the tractor's idle speed, whereas MOST tractor's hydraulics need you to run up to the 2400 or 2600 rpm to get enough volume for decent speed.
The PTO pump is often part of the package anyway and the discount for not taking it home with you is minimal.

 

[Chipperman]

Reg
I think you will find that the pump kits for a backhoe sell for $500 or more possibly a lot more. I can also say I have personally seen tractors that are broken right in the middle (through the bell housing) due to using a 3 pt hoe. Not a pretty site.
Happy Tractoring
Chipperman /forums/images/graemlins/smile.gif /forums/images/graemlins/smile.gif