Herkypilot
Platinum Member
- Joined
- Oct 3, 2011
- Messages
- 566
- Location
- Meadows of Dan, VA
- Tractor
- Kubota M7060 HDC12, KX040 & L3540 HST
The drivetrain will spin as many times in 4wd as in 2wd. I could see less wear on bearings or gears, but not really on the seals from running unloaded.
I've been meaning to address this comment and I'm finally getting around to it. Although I do agree there will be more stress on bearings and gears leaving the tractor in 4x4, the other issue is torque delivery on the prop shaft MAY cause slight flex and eventual wear on seals. That wear shouldn't happen in less then 400 hrs, but in this particular design, apparently something is causing it. The OP talked about a seal working loose and the updated seal kit is driven in place. Why would the original seal work loose to begin with if there is no flex what-so-ever. Just the rotation of the shaft shouldn't cause it to move either way. I suppose another issue could be the shaft isn't exactly concentric and there is a slight wobble. Anyway, just a theory of mine that the less unnecessary stress on a 4x4 system, the better as far a longevity. Thoughts?
HP