Severe Use

[JimMorrissey]

Rat & JimR,

Yes....a good sized rock in the bucket and the hoe curled and extended. I've done this three times when I'm picking up big boulders....at least trying to pick them up. I get them about 3 inches off the ground, then sort of skid them along at the absolute max capacity of the L39. This is one of the reasons I asked the question. The boulders have got to be 3500lbs or more. The loader can barely curl them off the ground. I don't like doing it, but I have to move them. -It's a lot more stable with the hoe extended and loaded. Wish I had a picture of it. Maybe I'll take one next time.

 

[JerryG]

The more weight that you have behind the rear axle and the farther it is behind the rear axle, the less weight the front axle has to bare. A good example is our add-on backhoes. The heavier the hoe, the lighter the front end will be. This type of weight pivots on the rear axle. If you have weight in the rear tires or on them, it will help to hold the rear down. What it doesn’t do is remove weight from the front axle. It just weights down the backend. If all your weight is on or in the rear tires, all of the pivot effect is on the front axle. If you have weight hanging out the back behind the rear tires, part of the front weight is then pivoting around the rear axle.

 

[JimMorrissey]

Correct.....That's why I "adjust" my BH with big loads.

 

[JerryG]

<font color="blue"> Correct.....That's why I "adjust" my BH with big loads. </font>
You also need to be very careful if you extend the hoe to counter balance a load. It puts a lot of stress on the points of the tractor where the hoe attaches.

 

[BadDog]

The backhoe itself IS enough counterweight to balance the FEL...

but... I don't always want the backhoe on when I'm moving in tight areas, such as stacking boulders for a retaining wall.

 

[Spiffy]

I ought to know enough to stay out of this one, but why not try to clear the fog (or add to it /forums/images/graemlins/crazy.gif)...

For keeping the rear-end on the ground: wheel weights/fluid does count.

For keeping the stress off of the front axel, you need the weight to be behind the rear axel.

 

[BadDog]

You got it Spiffy...

NH told me to keep at least 25% of the FEL load on the rear tires or I'll say bye-bye to the front end and pay for it myself the next time. It can't take a full FEL and the weight of the tractor at the same time. It did put up a darn good fight though.

Funny they don't put that in the owners manual.

 

[TOL1488]

</font><font color="blue" class="small">( I ought to know enough to stay out of this one, but why not try to clear the fog (or add to it /forums/images/graemlins/crazy.gif)...

For keeping the rear-end on the ground: wheel weights/fluid does count.

For keeping the stress off of the front axel, you need the weight to be behind the rear axel. )</font>

This is just semantics but keeping the wheels on the ground in itself would reduce the potential load on the front axle. If the rear wheels leave the ground the front axle would be carrying the weight of the load plus the total weight of the tractor. A heavy enough weight behind the tractor would spread the load equally between the front and rear axles (Balanced). A heavier weight could transfer more load to the loader, frame and rear axle by using the rear axle as the fulcrum...

 

[Spiffy]

/forums/images/graemlins/grin.gif Not bad, but the math still beats the semantics (sorry, I have a misaligned part on the PT and it somehow has me in a fiesty mood /forums/images/graemlins/wink.gif ) :

The exact same load still exists on the front axel, except with rearwheel weights/fluid, the tractor now weighs 200lb more (which is being exerted to the ground while the rest of the load is on the front axel).

I guess with semanitcs, it could be argued that once the rear end goes in the air and the bucket hits the ground the bucket is now carrying some load, so the front axel stresses without wheels weights are less yet! /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

 

[TOL1488]

</font><font color="blue" class="small">( /forums/images/graemlins/grin.gif Not bad, but the math still beats the semantics (sorry, I have a misaligned part on the PT and it somehow has me in a fiesty mood /forums/images/graemlins/wink.gif ) :

The exact same load still exists on the front axel, except with rearwheel weights/fluid, the tractor now weighs 200lb more (which is being exerted to the ground while the rest of the load is on the front axel).

I guess with semanitcs, it could be argued that once the rear end goes in the air and the bucket hits the ground the bucket is now carrying some load, so the front axel stresses without wheels weights are less yet! /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif )</font>

Not while the rear wheels and the bucket are both in the air... /forums/images/graemlins/shocked.gif in that position the load will increase as the front axle becomes the fulcrum.

As long as the wheels are on the ground the wheel weights do not exert any load on the axles front or rear /forums/images/graemlins/confused.gif (or is that what you were saying?)