Where/how are you chaining? I would argue that chaining puts odd/unintended loads on parts/pieces that wasn't intended.
The hydraulics / seals / etc. doesn't care. They don't get tired from holding something. Set it down when parked for safety though.
I'm going to disagree. If you have almost 0 traction on ice and you add chains, how is that different from being in soil with good traction in 4wd pulling a heavy draft implement.
I believe the statement is being made about chaining up the 3ph so it can't drop any further, not about tire chains. So is there an appropriate place that a chain can be used that will support the weight?
If your in the winter, your going to run into ice. No amount of weight on r-1's is going to overcome that. The coefficient of friction dictates (Static or dynamic, your choice.). I'm running a 11klb + machine in 4wd with R-1s that is almost helpless without chains on. I can probably climb the side of a tree with all 4 tires chained now though.
So now you're going to change the scenario, and change your statement....okay, the original statement still didn't make sense.
You said weight doesn't matter...it does. More weight with chains will be better than less weight with chains. More weight without chains will be better than less weight without chains.
Making a comparison limited to ice only, and chains versus without isn't what the OP was asking about.
I made no change to my statement(s). WE are talking about traction in the winter are we not? R-1's are just about helpless in icy or previous plowed/hard run in roads. You can't force a tire to get traction if it can't grip the surface or penetrate the surface. The R-1's have no sipes and can't penetrate so they don't get good traction on a hard surface. If you are talking deep snow, then yes, r-1's are in their element because the lugs have something to get a hold of. `If you are staying within the limits of the load ratings of the machine, an extra thousand lbs of weight isn't going to make a noticeable difference in the traction. You have made no appreciable change to the coefficient of friction between the tires and the ice/road. I don't drive in deep snow when I'm plowing, I drive in the cleared portion of the road right behind the plow I'm pushing.
I think I have a much heavier tractor than you and 4wd so I can absolutely speak to the lack of effect that weight has on such a machine. (I also have a smaller machine with r-4's that is equally helpless on ice or hardpack) That is precisely why I have added front and rear chains, wheel weights, loaded tires, and a 1700lb counter weight. (11Klbs+ total) Now, I see your eyes lighting up reading this so I will explain. The counter-weight is for the loader. I can easily lift the rear end off the ground with the loaded tires and wheel weights. That's why I made it. The wheel weights and loaded tires are for farm work in the summer time. These JD utilities are far to light from the factory to keep heavy implements from pushing them around. I can guarantee that if I took my chains off, I would not be able to push my snowplow up the hill out of my driveway, regardless of the 3klbs that I have added to the machine. I will agree that the weight improves the traction of the CHAINS a lot. It really forces them into the ice and I have no problems navigating my hillsides anymore.
I agree that my replies to your comments were not in regards to the op's comments/question. I have directed my comments at him and you respectively.
I think you're both right and both wrong. It all depends on the conditions. There are cases where weight will help, there are cases where weight won't make a lick of difference. Chains will always help, but are much less effective if there isn't enough weight to get them to bite, but I would guess that is much less often the case.
But neither of those issues is what the OP had asked about in the first place. He asked about the ballast box and how the effect would change whether it was up or down.
I've been saying all along that the OP asked a different question, but he did bring up the topic of adding weight (to the front).
I'm not sure why you said I'm both right and wrong when you just made the exact points I've been making. Weight alone will sometimes be enough and chains always help...while weight plus chains would be even better. I've never said that weight alone always helped, just that sometimes it's enough.
I've been saying all along that the OP asked a different question, but he did bring up the topic of adding weight (to the front).
Well I had an experience that possibly resolves the debate.
My little Mitsu has FEL plow and rear blower, 2 link ice chains on loaded rears and usually is un stoppable.
I had to remove the blower in order to repair the 3-point pivot shaft and to do so needed to drive to a friend's as he had a heated garage.
Well to climb hills that I usually attack in 3 high (2wd)now needed to be driven in 3 low with diff lock engaged and 4wd, and down hill was a hair rising ride.
That 300 lb(?) blower hanging out 3 ft on the back sure makes a major difference.
As chains go I think what I have is about the most aggressive available.
YES, properly located weight sure counts.