chim
Elite Member
I've stalled all 3 Kubotae that I've had.
The death of an L3901
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I've stalled all 3 Kubotae that I've had.
k0ua
Epic Contributor
How do you do it?
k0ua
Epic Contributor
Well, Yeah.
chim
Elite Member
Usually pushing snow uphill on the driveway in a higher range than I should have been in. A few times pushing into a gravel pile.
CobyRupert
Super Member
???
What the...how the ...how do you do that? (Scratches head).
I take it the winch doesn’t have a clutch, or clutch is stronger than the tractor, so tractor stalls. But does elasticity in cable then make tractor turn backwards if you don’t release the rope? Or whatever you’re pulling heads back in the wrong direction?
k0ua
Epic Contributor
I guess it depends on how the relief valve is set. I am guessing that your throttle setting was too low also in these circumstances. So maybe throttle setting low, relief valve set up high, and pushing into basically an immovable object it is possible to stall the engine with a hydro. Although it has never happened to me.
dodge man
Super Star Member
My BX I stalled more than once, usually going into a gravel pile in high at a lower throttle setting.
k0ua
Epic Contributor
Yeah, unfortunately they decided to only put a 2 speed transmission behind the hydro on the BX series. So you have two speeds, too low and too high.
Most times winching I have it on idle and dont see a stump or rock that the trees catch on and I dont release the rope fast enough or I think the tree will come and then it dont. Sometimes I have throttle up and I break the cable, I just didn't know a motor can run backwards but this dont happen very often, so far in 14 years about 3 times.
Peter 315
Super Member
I have seen a couple truck motors run backwards from stalling out..
You talking about big trucks or pickups?
Herea a video last spring of winching, throttle was up and trees caught on stump, if throttle was on idle it would stall the tractor and or make it run backwards if rope not release at the right time, or if I kept trying to winch with trees caught on stump with throttle up I would break the cable, that was a mud hole back in April.
Kubota L34OO bare ground winching - YouTube
Kubota L34OO bare ground winching - YouTube
Peter 315
Super Member
Big trucks..
chim
Elite Member
That happened to me in a Euclid dump truck back in the late 60's when I was working in the quarry. It blew the oil out of the oil bath air cleaner and onto the fender. They had virtually no brakes when loaded. I don't know if that was the nature of the beast in those days or if the quarry thought kids were expendable.
RULE#1 was to never take it out of gear on a grade. RULE#1A should have been go with at least one gear lower than you think you need
CobyRupert
Super Member
Shouldn’t winch clutch slip before cable breaks? You definitely get more pulling power if it doesn’t slip.....just be quick to duck when snaps.
What is the ratcheting noise when your winching? Are you the fellow who rigged it up so you only need one winch operating rope? Brake goes on as soon as you stop pulling?
.....but if that was the case, I guess cable couldn’t turn engine backwards?
Shouldn’t winch clutch slip before cable breaks? You definitely get more pulling power if it doesn’t slip.....just be quick to duck when snaps.
What is the ratcheting noise when your winching? Are you the fellow who rigged it up so you only need one winch operating rope? Brake goes on as soon as you stop pulling?
.....but if that was the case, I guess cable couldn’t turn engine backwards?
Most times the clutch dont slip when I have the rope pulled tight and now thats easier to do after I put a handle on the pull rope. Every time I broke the 5/16 cable it just lays there, and the ratchet sound is a flat piece of steel riding on the spool, locks in when the drum stops turning, might be the most simple design on a pto winch.
Tractor winching, showing Fransgard auto brake - YouTube
The step which OldPath left out when running backward is that while still holding the winch clutch engaged, the tree will roll back off the stump, turning the clutch hence the engine backward. And since Kubotas just want to run, spinning it backward starts the engine. The oil pump doesn't really like it when that happens though.
It happened to me several times with my old 275, and my neighbor says it's also happened on his 235 Timberjack skidder.
It happened to me several times with my old 275, and my neighbor says it's also happened on his 235 Timberjack skidder.
