Mahindra loaders?

[Bob_Skurka]

I have been informed that Mahindra bought out KMW.

Wow... completely not true....lol

How do you know?

Well I will have to back up rback33's statement.

I happen to communicate with a fairly nefarious low-life type who, despite his character flaws, is well connected to the inside working of KMW. My source says that it is untrue.

 

[miami]

Miami,

This problem is not brand specific, it's more of an operator thing.

Thanks Dave.

I'd agree it seems like an operator thing except for a couple of reasons:
One is since it happened the first time and the local rep mentioned the "over-extension" (why wouldn't they put stops on it to prevent that??) possibility I have been very careful not to do that.

And second how come nobody else has done this and the rep says he has never heard it done? Am I the only person who would "over -extend" cylinders?

That's the thought process anyway. I guess I am a bit bothered by the fact these are not standard cylinders and have to be bought from Mahindra at an exhorbinant cost!

Miami

 

[Bob_Skurka]

One is since it happened the first time and the local rep mentioned the "over-extension" (why wouldn't they put stops on it to prevent that??) possibility I have been very careful not to do that.

While everyone does it, backdragging is not recommended is generally is considered abuse. The 'over-extention' comment is very likely related specifically to the action of backdragging, but having the bucket in that same position while lifted into the air is required to empty the bucket. So while the bucket position my be the same, the backdragging creates a substantial amount of stress on the loader and that that is why you are bending the cylinders.

And second how come nobody else has done this and the rep says he has never heard it done? Am I the only person who would "over -extend" cylinders?

Many people have bend their cyliders while backdragging but the term 'over-extended' may not have been used. The effect is the same. If you backdrag you better be careful.

 

[miami]

[ Many people have bend their cyliders while backdragging but the term 'over-extended' may not have been used. The effect is the same. If you backdrag you better be careful.[/QUOTE]

Thanks for the reply. I still think others would have done the same thing. I even asked the rep about back dragging the first time it happened and both he and Mahindra told me it 'should be no problem'.

Again thanks for the comments.

Miami

 

[Bob_Skurka]

I even asked the rep about back dragging the first time it happened and both he and Mahindra told me it 'should be no problem'.

If you are careful when you do it, it should be 'no problem.' But there is a technique to it and as Dave wrote earlier, this is an operator issue, not an equipment issue. I would guess that you are attempting to hold the weight of your tractor with the cylinders at full extention while backdragging aggressively. If so, then what you are doing probably would qualify as abuse and that is probably why your cylinders are bending.

 

[jwcinpk]

I've done alot of backdragging with my Mahindra/Great Bend and a friend's Kioti 3054 and have not had a problem. I have trouble remembering that I can't use my tractor for a bulldozer. I understand being upset about those cylinders. Wish there was some way for us to all see what angle everything is at when you're doing this, maybe we could help. On the other hand it may be a design flaw in your particular loader. Have you compared it to any others? I'm no expert just grasping for possibilities.

 

[DavesTractor]

Well it could be that you have some sort of odd problem wih your loader, but I doubt it. Remember that when you lift or curl you can't apply more psi to the cylinders than the pressure relief will allow. But when the spool valve is closed and your cylinders are extended and you are going backwards (or forwards for that matter), you can apply more pressure than the system is designed to handle. When the spool valve is closed, it cannot protect the cylinder from too high a load as the pressure relief is on the other side of the spool. Plus an extended cylinder is much more prone to bend then one that is retracted. I probably did not explain that very well....so somebody feel free to help me.

 

[AchingBack]

Well it could be that you have some sort of odd problem wih your loader, but I doubt it. Remember that when you lift or curl you can't apply more psi to the cylinders than the pressure relief will allow. But when the spool valve is closed and your cylinders are extended and you are going backwards (or forwards for that matter), you can apply more pressure than the system is designed to handle. When the spool valve is closed, it cannot protect the cylinder from too high a load as the pressure relief is on the other side of the spool. Plus an extended cylinder is much more prone to bend then one that is retracted. I probably did not explain that very well....so somebody feel free to help me.

Dave, I understood your explanation quite well. What I don't understand is why anyone would buy such an expensive piece of equipment, and be too cheap with their time in reading the instruction manual. My KMW loader manual specifically warns not to back drag at greater than 15 degrees. Damage is not warrantable, as it is considered abuse.

I also don't understand how people get the idea they are supposed to back drag with front wheels off the ground, and the loader tilted in dump position. Ignorance, or apathy, or both, I guess.

Bob

 

[Keith_B]

Dave, I understood your explanation quite well. What I don't understand is why anyone would buy such an expensive piece of equipment, and be too cheap with their time in reading the instruction manual. My KMW loader manual specifically warns not to back drag at greater than 15 degrees. Damage is not warrantable, as it is considered abuse.

I also don't understand how people get the idea they are supposed to back drag with front wheels off the ground, and the loader tilted in dump position. Ignorance, or apathy, or both, I guess.

Bob

My manual indicates the bucket should be "level on the ground" when backdragging, i.e., what the manual refers to as backfilling and backgrading. A lot of times if what I am backdragging is pretty loose I will also use the float position, as this takes a lot of pressure off the loader's cylinders.

 

[jwcinpk]

I bought my tractor to use and use it I have! If there was a design flaw in all of these or they could be easily damaged I would know it. I am ashamed of some of the things I have subjected my poor tractor to. I have no problems backdragging or bulldozing for that matter. If I only had 6 way tilt!