What is the phenomenon called...

[dragoneggs]

It is impossible for the rear tires (loaded and with backhoe in place) to come off the ground going uphill...this is a BX25D

My FEL will easily lift the rear tires off the ground with BH on.

 

[Mowbizz]

The FEL is not in play here as it is in the up position and I am using a trailer ball mounted to the front of the tractor.
I am wondering how you can perform this trick?
Does not sound logically possible...would not the rear tires simply pivot in place as the FEL is raising the front?

 

[4570Man]

My tractor lacked the muscle to lift the rear wheels off the ground but if you lifted the front wheels high enough the backhoe would hit the ground. The loader also lacked the travel to do this. You had to be pushing down on a brush pile or something. I'm not sure why any of this is useful to the problem though.

 

[marchanna]

If you're ever in the scenario again, it would be great if you could get some video so we can all see it.

Technically, if the HST is overwhelmed, it could make a difference switching to 4 wheel drive because you are no longer pushing the front wheels but rather driving with them. The load on the pump theoretically doesn't change, it is just distributed between four wheels instead of two, however, the physical resistance on the ground can be reduced by driving with 4 instead of 2.

 

[Fallon]

The FEL is not in play here as it is in the up position and I am using a trailer ball mounted to the front of the tractor.
I am wondering how you can perform this trick?
Does not sound logically possible...would not the rear tires simply pivot in place as the FEL is raising the front?

The trailer weight is pushing down on the front of the tractor. Just like a teter toter, that lifts the back end to some degree. If the back has little weight/traction, that means the reaes will slip & spin. Putting it in 4wd fixes things as that's where the traction is.

 

[bspeedy]

The trailer weight is pushing down on the front of the tractor. Just like a teter toter, that lifts the back end to some degree. If the back has little weight/traction, that means the reaes will slip & spin. Putting it in 4wd fixes things as that's where the traction is.

Yeah - I'd say this and maybe tires spinning on the rim. Check your air pressure. 4wd is good to use when carrying a load. Asphalt will wear out the front tires quicker, but your tractor drifting backwards and rolling over is more expensive than new front tires.

 

[Mowbizz]

Yeah - I'd say this and maybe tires spinning on the rim. Check your air pressure. 4wd is good to use when carrying a load. Asphalt will wear out the front tires quicker, but your tractor drifting backwards and rolling over is more expensive than new front tires.

Absolutely! 4wd from now on for sure but like I said this was an isolated task and it happened on dry pavement...puzzling.

 

[/pine]

Absolutely! 4wd from now on for sure but like I said this was an isolated task and it happened on dry pavement...puzzling.

I don't want to say the word out loud but please tell us you were not moving or using any p a l l e t s when this occurred...

 

[Mowbizz]

No pallets...lol

 

[George the Beagle]

These tractors don't have a brake on each wheel like a car, the brakes are on the driveline. You'll only have brakes on the rear wheels when in 2wd which is why it's important to be in 4wd if you're dealing with any weight--towing, in the bucket, or otherwise.

 

[Beaux Duke]

My FEL will easily lift the rear tires off the ground with BH on.

I can see that happen if there is something under the FEL but it would have to be pretty tall.

I took some video today piling up limbs the recent snow knocked down. I was tamping the limbs down to compress them and noticed in the video that had I raised the front end much higher I would have rocked back on the bottom of the BH which could lift the rear wheels by changing the pivot point from the axle to the BH. Not something I want to experience. I think I will stop compressing the burn pile quite so aggressively in the future.

I think it’s the same principle as drag cars using wheelie bars. Rock back on the rear bumper and the rear wheels will lift enough to lose contact with the ground

 

[4570Man]

My FEL will easily lift the rear tires off the ground with BH on.

Do you mean pushing down with the loader or lifting up and pivoting over the front axle?

 

[dragoneggs]

Do you mean pushing down with the loader or lifting up and pivoting over the front axle?

Pivoting over the front axle trying to lift something too heavy... did it a few times when my BX was new and I was trying to dislodge logs from a debris pile that was made by an excavator. I was facing downhill. On flat ground using my forks trying to lift too heavy a pallet, this doesn't happen... it limits out.

 

[4570Man]

Pivoting over the front axle trying to lift something too heavy... did it a few times when my BX was new and I was trying to dislodge logs from a debris pile that was made by an excavator. I was facing downhill. On flat ground using my forks trying to lift too heavy a pallet, this doesn't happen.

Could you lift both back wheels or just one?

 

[dragoneggs]

Well one completely and the other was very close. I didn't push it. :shocked:

 

[dragoneggs]

Well one completely and the other was very close. I didn't push it. :shocked:

I was on a pretty decent slope though.