Chains Front tire chains

[tc35dforme]

Jerry, where are you thinking the slip is occuring ??? The driveshaft and differential should'nt slip ( mechanical connection )....correct. The transmission should also be without slippage ?? Are you referring to the slip between the rubber and the ground ??

I'm not trying to argue...just learn.

 

[hazmat]

<font color="blue">Are you referring to the slip between the rubber and the ground </font>

Yup.

 

[tc35dforme]

Haz....If so then so....

Would it then be logical for me to say that when in '4WD' with front chains mounted, there will be no slip between the tires/chains and the ground....traction = 100 % or near to it.

I'm not buying that. I would argue that in most cases, the grip with chains on is less than without. I would say that the traction profile is more dynamic. The grab would continuously shift from one link .... slip, shift to another chain link...slip. Each grab would surely dig in, but as the wheel turns, that link looses grip. There has to be points along the way where there is no grab for a the chain...hence slippage.

I just don't see where the tire chain is giving so much traction that its going to affect the driveline.

Now the argument should focus not on this 'slip', but on the affect that the tire chains have on the overall diameter of the tire. This change in diameter will, if great enough, affect the distance the tire will roll in one revolution. Since the front and rear tires are of different diameters, a gear ratio has been built into the gearboxes to allow the two axles to cover the same distance even though the front wheel is spinning faster than the rear. On the TC35D its between 1.63 and 1.69:1 meaning that the front axle will turn 1.65 times for each rotation of the rear. If the chain causes the front tire to grow, therby making it try to cover more distance than the axle, we have a problem.

 

[rambler]

Actually, 'slip' is the issue. The front tires need to be a tiny bit larger, 2% or so, to prevent binding. With the tire flexing around the chain, it won't make much difference to have the chain on.

You say chains do not increase traction, there might be more slip with chains than without??????

Think about that - why do people put chains on? To _increase_ traction........ Your agrument doesn't hold.....

Probably not so important on little tractors, but on the big ag tires, you get 1 flat & you need to change all 4.

Actually chains on the rear slightly increases the chance of binding, but chains on the front greatly increases the front axle driveline wear. Chains on all 4 will give you problems over the long term.

We can look at little pieces & micro-manage this issue. The bottom line, for the whole tractor, is that chains on the rear are best for the tractor, chains on the front only will add wear to the front (expensive) driveline, and chains on all 4 wheels will greatly increase that wear on the driveline.

Any chains will increase wear tho, and there are times that we do what we do to make the tool work for us. Nothing wrong with rear _or_ front chains. If we didn't want to wear the tractor, we would need to leave it parked after all! /forums/images/graemlins/smile.gif But I would think long & hard before putting chains on all 4....

--->Paul

 

[Woodan]

Here's my two cents...for what that's worth...

As far as tire chains go, I don't see any issue. The reason you put chains on it to get better traction. The reason you need better traction is because of ice or snow. No one in their right mind would run chains, front or rear, on pavement year round. You wouldn't run 4wd on pavement! When the snow/ice goes away so should the chains.

Damaging binding effects will not happen when running on ice or snow. The slippery surface is forgiving. If it does then the manu hasn't built the component strong enough.

My R4's are absolutely terrible on snow and ice here in PA(tc33). Any slight grade with the back blade down or even the snow blower down and I can't get out of my own way. I've even got stuck in the road(crossways) turning around. I had to use the fel to get myself moving. Even with the fel down scraping the slush and ice off the driveway will cause the tracter to go towards the ditch, because of the slight crown in the driveway and the lack of traction on the front end.

I've had rear chains and absolutely hated them. I got so jarred left to right that I took them off and haven't had them on since. They're for sale if anyone is interested!!!

My tn65 with ag tires has no problems....so far.

I love the forum. A lot of good info. Keep it up.