First time for my B2650!!

rkidd

Active member
Lifetime Member

Equipment
B2650, FEL With QA 60"mmm, 3pt FDR1672,homemade ballast box, BB 1572 box scraper
Dec 7, 2015
742
67
28
Jefferson Ohio
For those of you that know me, and the new people that dont, I have been around all types of equipment for 40 plus years. With that being the case, at some point every piece of equipment will have a problem, whether it is mechanical, or electrical, or something else. I was out mowing out back with my B2650 and FDR 1672 rear finish mower, when the tractor just shut off like you turned the key off. Just mowing grass, and not brush. My tractor is 4 yrs old with 1050 plus hrs on it. Got off and looked the tractor over everywhere including underneath with out seeing any problem. I was really perplexed at this point as I really maintain all of my equipment. When I turned the key to try and start it, there nothing, not even anything on the LCD panel on the dash. The only light that came on was the light for the glow plugs. Next step was to check the fuses. The OPC 5 amp fuse was blown. At least a place to start. There was a spare fuse in the box. Replaced the fuse with the new one, turned the key on, and it blew immediately. Not good. Getting late, so I decided to unhook the mower and have my buddy come over and help me tow its up to my shop with the 4 wheeler. Got it put in my shop and would look at it in the morning. I had bought the WSM when I bought my tractor as I do for every piece of equipment I buy. In the mean time, helping out at my local Kubota dealer, I called one of the mechanics to see where to start looking. He said it was probably one of the safety switches that are tied in to the OPC panel. The next morning checking the WSM, they had a table to ohm check the 4 safety swithes. Located and unplugged the 4 safety switches and checked the all according to the table and they all checked good. Again not good, because I now have an intermitten electrical problem. Next step I plugged the switches in one at a time with a new OPC fuse in, and nothing blew. When I got them all plugged back in, turned the key on, all the LCD panel lights came on and the tractor started right up. Again good but not good. I played with all of the safety switches, cycling everything on and off and nothing failed. I then backed out the garage and went back and forth a few times and it quit again. I was pretty sure at this point it was the HST safety switch. Went out to the dealer and got one for I think was $39.00. Put the new switch in and adjusted it, and the tractor has been fine ever since. When I got the old switch out and compared it to the new one, it was not smooth and notchy feeling. Playing with it out and the ohm meter hooked up I could get it to fail every once in a while. So now I am back in the game. Pretty cheap fix for 4 yrs and 1050 plus hrs. So maybe this will help someone down the road.

As a little fun side note, I road my Harley down to West Virginia to see my son and do some riding with him, a 1300 mile trip, on my 2003 FLHTC Harley with 96000 miles on it the same week. On the way back, I lost all of my gauges on the dash, so couldnt tell if I had oil pressure or a charging sytem. Checked the fuses on it, and the gauge fuse was blown. Put a new one in, turned the key on and it blew immediately. Went to an auto parts store and bought a couple of tools to pull the outer fairing off out in the parking lot, expecting to see something bare or melted, and couldnt find anything wrong. Feeling good enough that everything else was working, I drove it the last 3 hrs home. Long story short, it ended up being the neutral switch on my Harley also. What are the odds of that, 2 different machines in one week with bad neutral switches!!
 

Bmyers

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Equipment
Grand L3560 with LA805 loader, EA 55" Wicked Grapple, SBX72 BB, LP 1272 mower
May 27, 2019
3,469
4,341
113
Southern Illinois
Hopefully got all the gremlins out of the tractor and the bike so you can have another 1,000+ trouble free hours.
 

PHPaul

Well-known member

Equipment
B2650, Pronovost snow blower, Landpride rotary mower, Howard tiller, box blade
Apr 2, 2015
1,172
1,332
113
Downeast Maine
www.eastovershoe.com
Had the same problem on my B2650 with about 300 hours on it. After changing the fuse it would start and run and then blow the fuse as soon as I touched the hydro pedal.

Service guy at the dealer knew what it was immediately, so it's apparently a fairly common problem.

Now if I could get the dang AC to work for more than a couple of months at a time...
 

North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
33,906
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Sandpoint, ID
One trick I have used for years for intermittent or unexplained circuit issues, is to replace the fuse with a circuit breaker, you can hear when they pop, click to reset it and off you go to troubleshoot and isolate the issue. ;)
 
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rkidd

Active member
Lifetime Member

Equipment
B2650, FEL With QA 60"mmm, 3pt FDR1672,homemade ballast box, BB 1572 box scraper
Dec 7, 2015
742
67
28
Jefferson Ohio
One trick I have used for years for intermittent or unexplained circuit issues, is to replace the fuse with a circuit breaker, you can hear when they pop, click to reset it and off you go to troubleshoot and isolate the issue. ;)
Very good point NIW. I forgot about that one. I used to know it before I got older and forgot half the things I used to know. So I bought a box of fuses instead!! haha.
 
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