B2650 on the way

   / B2650 on the way
  • Thread Starter
#81  
When it comes to plowing, more weight is always a help. If that is your primary use for the machine I'd probably lean towards the heavier one. On the other hand, do some research and see how they are handling the DPF stuff, make sure there aren't any current issues with them. I do also use my machine to plow snow in the winter, and it has done a fantastic job IMO even with a 78" plow. I'm not a huge fan of the way I have it set up - no trip mechanism and loader mounted. I am looking for a way to add that safety factor into it for next season. My area is fairly small in comparison to most, and it wouldn't bother me to have to remove the plow and use the bucket if the situation called for it.
 
   / B2650 on the way
  • Thread Starter
#82  
Currently about 300 hours on this tractor now, and I'm starting to have a couple of issues. There is an intermittent non-start issue, turn the key and I get nothing. I fumble around with the seat and it still does not start but I hear a relay clicking. This tractor used to start every time without having to be on it, and it did not matter what position the gearshift was in. My other issue is the control pedal return to neutral mechanism, while the machine is running it tends to creep forward enough to drive the machine. There is no adjustment for this and there is no spring controlling it, it appears to be a gas cylinder. The mounting points for the cylinder has a ton of slop in it which is poor engineering in my opinion. The slop however is not the cause of the problem from what I can see, it is likely just the cylinder failing.

I assume the cylinder is an easy swap, but the non-start issue bugs me. Has anyone else experienced this? I never know if it's just going to start right up easy or if it will take five minutes of fiddling around. Once it does start I have no idea what the issue was, it just doesn't randomly. There is no pedal switch or seat switch that is causing this issue I have tried them all in every position.
 
   / B2650 on the way #83  
Currently about 300 hours on this tractor now, and I'm starting to have a couple of issues. There is an intermittent non-start issue, turn the key and I get nothing. I fumble around with the seat and it still does not start but I hear a relay clicking. This tractor used to start every time without having to be on it, and it did not matter what position the gearshift was in. My other issue is the control pedal return to neutral mechanism, while the machine is running it tends to creep forward enough to drive the machine. There is no adjustment for this and there is no spring controlling it, it appears to be a gas cylinder. The mounting points for the cylinder has a ton of slop in it which is poor engineering in my opinion. The slop however is not the cause of the problem from what I can see, it is likely just the cylinder failing.

I assume the cylinder is an easy swap, but the non-start issue bugs me.
Has anyone else experienced this? I never know if it's just going to start right up easy or if it will take five minutes of fiddling around. Once it does start I have no idea what the issue was, it just doesn't randomly. There is no pedal switch or seat switch that is causing this issue I have tried them all in every position.

The B7800 of old had a problem with the go pedal not centering which caused it to not start. Many of us suffered with the issue trying every fix known to all the other safety related parts that was supposed to prevent starting. Was going to pass on a reply but since you mentioned a problem with the pedal and the no starting at times issue I figured you may be suffering two problems with one piece. Fix your pedal centering issue and maybe your starting/not starting at times may be fixed.
 
   / B2650 on the way #84  
I just looked at the parts diagram on Messicks, and there is indeed a spring in the mechanism just like all the other HST kubotas are setup. It pulls the treadle back to center. The "gas cylinder" you saw is just a damper that slows the rate of return of the spring. The damper doesn't cause any movement on it's own -- the spring does. Doesn't matter if there is slop in the damper linkage -- it you understand how it's working, you'll see why.

I would crawl under the tractor and go over the entire treadle mechanism and make sure it's properly lubed. They can stick, especially if dirty. Study everything carefully, including spring and damper, and see if you can spot anywhere that something is hanging up. I had this issue on my B2920 and it just needed some TLC and spray lube down in the linkages. Also, there are usually 1-2 grease nipples for part of the linkage too, so make sure you have been greasing them (on some Kubotas they are to be greased every 10 hours, others every 50).

I suspect the starting issue is related to the same problem -- there is a safety switch that won't let the tractor start if the treadle isn't centered.
 

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