mike69440
Elite Member
- Joined
- Jun 2, 2005
- Messages
- 3,300
- Location
- Central NH (God's Country)
- Tractor
- 2005 L39 Kubota, 2020 Polaris 570 Sportsman, 2006 RTV 900, 2019 RTV1100C, 1997 Komatsu PC75UU2E w/ Thumb & Blade, 2013 Mahindra Max28XL Shuttle plus many attachments
" I can't figure out why the manual says not to fill the rears when using the hoe."
Well, my guess is that nailing down the tractor with that much weight would cause too much stress on the hoe itself. As it is, Kubota has already given us more backhoe than the tractor's normal weight can hold steady, and I'm figuring that letting the hoe move the tractor around is a "safety valve" for stress on the BH and frame components. If you've ever looked at that main swing pivot platform on the M59 BH and then taken a gander at the same part on a full size TLB....well, that darn plate on the M59 sure isn't all that beefy. Of course it does work OK....and I've never heard of one breaking or bending....but there has to be a limit somewhere and tractor weight just might be where the limit lives.
But maybe there's still room for you to add some weight....because it just might be that when the Kubota engineer wrote that part of the ops manual he was assuming that the owner already had the full allowable complement of three factory wheel weights per side and are meaning to say not to add loaded tires to the wheel weights that are already there. Could be.... after all, wheel weights really are a better solution even if more expensive, and the guy is probably some sort of engineer so he's got little concept of money or the real world outside anyway........so maybe he just figured anyone with an M59 would go with wheel weights first.
Can't help much more than that. Weight isn't a problem where we are here in Colorado. Just as it comes stock is good for us here in the Rocky Mountains where what we want is light weight coupled to high muscle. The M59 sure has both those things... just as long as we can agree that weighing something over 4 tons is to be considered "light".
Whatever you try, good luck and let us know.
luck,
rScotty
My L39 seems just about right at just over 4 tons weighted. The 37 net HP engine does have a lot to lug.
The M59 at just under 5 tons should be nice and stable. I move my L39 around with the hoe to position. The hoe is a lot tighter than the loader with 1,800 plus hours on the machine, no issues.
The m59 with lots of power should not notice the weight.