B2650 Stalls, no start for 10-15 min.

[Rock Crawler]

I've noticed this only 2 times in the past, in cooler weather, while working the tractor hard. Normally if I stall it out while consistently keeping the engine under a heavy load and bogging it down it will re-start immediately. 2 times this spring it scared me a little as it would light the dash but no starter... I leave it sit for 10 minutes (trying every few minutes to hit the key) and magically at some point it will fire up and run like normal.

Yesterday I was working the bajeezus out of it in low range, full throttle, pulling a mower in a 4 acre flat field that had growth ranging from 2 feet of grass to 4/5 feet jaggers (not sure what you non western PA folks call jaggers, it is like the stalk of a rose bush with the jaggers all over that make you bleed). I would modulate the HST pedal to keep rear PTO speeds at 450-520 as I worked through the overgrowth. 2 times I let it bog to hard and stall out, both times it refused to do anything but light the dash for about 15 minutes. During this I was seeing 4 to 5 bars on the digital temp gage. Normal light operation shows 3 bars.

Is there an over-temp safety built into this thing that prevents the starter from responding until it sets and cools down? It has never shut itself off, it is always following a heavy lug and stall out. And always when the engine is under nearly constant heavy load with full throttle and some amount of pulling it down in RPMs.

I'm trying to understand if there is a problem, or if this is a built in safety and I should not pay it mind.

 

[moship]

My guess is one of the interlocks (safety switches), such as PTO, HST pedal, seat, etc... are preventing it from restarting. Slowly rock the HST pedal while try to start or jiggle the PTO lever.

Not aware of any engine protection logic (ex: high heat), but I don't have a WSM to verify 100% if this is true.

 

[Fallon]

My guess is one of the interlocks (safety switches), such as PTO, HST pedal, seat, etc... are preventing it from restarting. Slowly rock the HST pedal while try to start or jiggle the PTO lever.

Not aware of any engine protection logic (ex: high heat), but I don't have a WSM to verify 100% if this is true.

That's my guess too. Possibly a loose ground or something (happened to me, enough voltage for the dash but not the starter relay)

 

[Dan33Klein]

If you were moving when the tractor dies it’s hard to get the hydro pedal in the neutral position to restart. I’m guessing after time it finally gets into the right posterior and starts up.

 

[s219]

Yeah, I'd suspect one of the safety switches too, and if you were always pressing the HST treadle when the tractor has died, that is a possibility. Though why it takes so long to settle back to neutral is not something I can explain.

Could also be the safety switch on the PTO if that has been running when this happens. Maybe the safety switch on the PTO is sticking and not letting the tractor restart as it thinks the PTO is still engaged.

There are also possible interactions with the seat safety switch and the PTO.

 

[BubbaJr]

I've had the same issues with my B2650 the last couple of times I've mowed. 2 weeks ago I was mowing beside the satellite dishes and the engine just died. Tried to start it, nothing. I was really close to the dishes so I had a hard time getting out of the tractor, but I finally made, and checked the wiring under the hood, found nothing out of place. Then it dawned on me that the PTO was still engaged, so I disengaged it, and it started right up. Later on I was driving past the garden, PTO off, firmly on the seat, and it died again, but started right up seconds later.

The next time I mowed, last week, I had the same thing happen while mowing going down a slight embankment, just died and restarted right afterwards. Each time my butt was firmly on the seat and everything else was normal. I at first thought that maybe the under seat connection to the kill switch was loose or had some interference, but I found nothing out of the ordinary.

Any ideas?

Thanks,
Joe

BTW, this tractor only has about 102 hours on it.

 

[Rock Crawler]

You and I are at literally the same hours, and I know that mine isn't related to body position on the seat because within a week of buying the tractor I made the seat safety switch permanently depressed so that I could work facing down on steep hills while standing in the reverse side of the HST rocker. Stupid stupid design for steep hills.

I'm really clueless at this point. I just know that my panties bunch up really tight when the tractor will not spin the starter and I need the stupid thing to run so that I can do the jobs that need tended to each day.

 

[rich bx]

I think the suggestions thus far are the probable answer/solution. IE: "safety switch" of one or another.
I've had similar experience of the machine not starting but after I've Intentionally Shutting it down.
I've a bx23 600 hrs. that I'd been using as backhoe/loader, and it happened several times. I mention that to indicate there were no implements attached to either PTO.
,but I've recently put a belly mower on it and haven't had much time with that to make a direct comparison to your experience of mowing-die-won't restart.

When I used it w/o the belly mower I've had problems re-starting, not b/c it died, but after intentional shutdown.
Restarting after quick refuel, restarting after over night sitting on the job, restarting after 3 mos sitting in the garage.

This sometimes happens when on a hill, parked in the garage, sometimes in hot sun, sometimes in freezing cold.
I would get on hit the key, all light's on dash including glow plug indicator on/bright, until final twist to engage the starter relay then nothing.
Jumping/charging the battery didn't help.

I'd lift then drop the seat a few times wiggle the treadle back and forth and even if no implement attached to PTO, wiggle PTO level.
Eventually it would start. FWIW.


But as for the stalling issue, That shouldn't really happen, to often or at all. That could be another problem .

 

[number two]

It would be interesting to jump the starter when this happens to confirm the starter is good.
If it starts,the starter is good and you're running again!
Good Luck!

 

[Volfandt]

After nearly 14 trouble free yrs my BX23D just developed a similar problem, i.e. when I shut it down after a good workout and try to restart it (like when either removing or installing the FEL) I can hear "something" click but the starter doesn't spin. At 1st I thought it was the solenoid clicking and that the starter was going bad. After a minute or 2 it would start.
Last couple times it happened I was way down in the field, quite aways from the shop. In troubleshooting I engaged the PTO lever then disengaged it and it started right up.
The next time it happened I just wiggled the PTO lever and it started. Later I removed and replaced the wire connections and cleaned up all the linkages around the PTO safety switch and haven't had the problem since.
I make it a point to keep that area clean, especially after doing alot of dirt work.

Good luck