Backhoe Attaching a Backhoe to the 3-Point Hitch

[bindian]

If an 85B backhoe is attached by a subframe, how difficult is it to change to a hay fork or box blade?

Remove backhoe..5 minutes. 10 minutes if I block it up. Putting on lift arms and telescopic links.......10-15 minutes. They are heavy.
hugs, Brandi

 

[Mad Mac]

Thank you one and all for the thorough, and at times passionate, replies.

In the past, I've been known to tighten a bolt until it strips, then back off half a turn. So, considering I'm married to this WoodMaxx now, I guess I will use it until I break something on the 5555 and then quit using it.

Forewarned is forearmed however, and with an abundance of caution will make every effort to stay within the performance envelope of the 3-point hitch.

At risk of further humiliation, I can't see how to disable the draft linkage without a major link-ectomy, so when using the backhoe should I set the draft to full hard or full float?

 

[5030]

Thank you one and all for the thorough, and at times passionate, replies.

In the past, I've been known to tighten a bolt until it strips, then back off half a turn. So, considering I'm married to this WoodMaxx now, I guess I will use it until I break something on the 5555 and then quit using it.

Forewarned is forearmed however, and with an abundance of caution will make every effort to stay within the performance envelope of the 3-point hitch.

At risk of further humiliation, I can't see how to disable the draft linkage without a major link-ectomy, so when using the backhoe should I set the draft to full hard or full float?

Full hard, no float at all. I still think you can pull the linkage where it attaches to the top link pivot, I know I can on both my Kubota's, it's a simple matter of pulling a cotter pin and sliding the arm out of the side of the link itself. If you absolutely cannot, put your upper hitch bar (from the hoe) in the center (closest to the axis pivot of the top link). That will nullify any input from the hoe causing the linkage to act on the lift cylinders.

If I was in Texas, I'd do the 'link-ectomy' for ya. I'm not however and I do not have any Mahindra dealers around here to look at to see either.... Good luck

 

[Mad Mac]

Thank you 5030. I finally got around to taking a few pictures.

Not much is going on with the right side of the top link. Under the rocker and not visible in the picture is a rubber boot covering some sort of rod. I think it pivots the rocker when the draft lever is moved.

On the left side of the rocker a thingamajig is visible. I think that as the draft lever pivots the rocker, a cam on the rocker engages it and regulates the amount of float.

But I could be wrong. I don't know nuffin 'bout machinery.

We only had to drill the backhoe top link bar out about an 1/8th of an inch to fit the Mahindra. It left plenty of meat on the bar.

The Mahindra top link rocker pin hole is larger in diameter on the left side than it is on the right side. The middle of the pin that engages the top link is the same size as the right side. In other words, the Mahindra rocker pin steps down in diameter. Both pin holes on the Mahindra top link rocker were larger than the hole in the backhoe top bar. If I had left the top bar unmolested, it would have taken a fancy combinations of bushings and a small diameter pin to button it all up.

 

[5030]

Thank you 5030. I finally got around to taking a few pictures.

Not much is going on with the right side of the top link. Under the rocker and not visible in the picture is a rubber boot covering some sort of rod. I think it pivots the rocker when the draft lever is moved.

On the left side of the rocker a thingamajig is visible. I think that as the draft lever pivots the rocker, a cam on the rocker engages it and regulates the amount of float.

But I could be wrong. I don't know nuffin 'bout machinery.

We only had to drill the backhoe top link bar out about an 1/8th of an inch to fit the Mahindra. It left plenty of meat on the bar.

The Mahindra top link rocker pin hole is larger in diameter on the left side than it is on the right side. The middle of the pin that engages the top link is the same size as the right side. In other words, the Mahindra rocker pin steps down in diameter. Both pin holes on the Mahindra top link rocker were larger than the hole in the backhoe top bar. If I had left the top bar unmolested, it would have taken a fancy combinations of bushings and a small diameter pin to button it all up.

In picture one, thats exactly what that rod is. That modulates the link for draft control. Remove that and the top link don;t move at all. If I won't remove easily, cut it, thread it and put on a threaded coupling (available at the hardware store). Mine has a cotter pin in it for removal.

 

[5030]

A subframe hoe won't work in my application anyway. The subframe would get in the way of my ag implements, especially the discbines and round balers. I need everything clear back there to initiate a hard turn.

Looks like you have plenty of iron out back like I do. I could see breaking things on a small tractor with no meat in the rear. Not the case with my tractors.

 

[Mad Mac]

In picture one, thats exactly what that rod is. That modulates the link for draft control. Remove that and the top link don;t move at all. If I won't remove easily, cut it, thread it and put on a threaded coupling (available at the hardware store). Mine has a cotter pin in it for removal.

Here is a better picture of the rod. It appears to be double nutted. There must be something I don't understand. It seems to me if I removed those nuts, nothing would prevent the rocker from flopping up and down.

 

[5030]

First picture, left hand side, small rod.

 

[Mad Mac]

First picture, left hand side, small rod.

Oh. That rod. Okay. I think it has a bolt threaded into it with an adjustment nut to lock it down. So maybe I can remove that bolt so there is no interference. Thanks for the help. I'll check it out further.

 

[5030]

Thats your actuator / sensing rod, just like my Kubota's. Mine had a cotter pin for removal and it defeats the draft movement when disconnected.