L3830 starts runs then stalls when trying to move forward or reverse
- Thread starter Wahotsdad
- Start date
North Idaho Wolfman
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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Is it an HST?
If it is, the issue can be in the HST switch.
Use the WSM (aka service manual) to pinpoint the issue.
Check your PM's for a message.
If it is, the issue can be in the HST switch.
Use the WSM (aka service manual) to pinpoint the issue.
Check your PM's for a message.
Russell King
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L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Safety switch on the pedal for forward and reverse speed control is what NIW means. It may be hidden under the tractor floor board.
Most likely a seat switch issue
when it fails in this fashion, "usually" it will die when the hst pedal is moved forward or rearward for travel. If this happens that means that the hst switch is working.
IIRC, the seat switch is IN the seat. There's another behind/under the seat and that one doesn't usually die. The one in the seat does. A lot of times the seat upholstery will get cracked and allow moisture to settle into the foam and everything inside. The seat pan is steel. It rusts. The screws like to break off when you try to take it apart to replace the switch. I've had to replace several seats because of this, and I didn't like replacing a single one of them because of the cost--but there is no choice if you want a working OPC system.
when it fails in this fashion, "usually" it will die when the hst pedal is moved forward or rearward for travel. If this happens that means that the hst switch is working.
IIRC, the seat switch is IN the seat. There's another behind/under the seat and that one doesn't usually die. The one in the seat does. A lot of times the seat upholstery will get cracked and allow moisture to settle into the foam and everything inside. The seat pan is steel. It rusts. The screws like to break off when you try to take it apart to replace the switch. I've had to replace several seats because of this, and I didn't like replacing a single one of them because of the cost--but there is no choice if you want a working OPC system.
whitetiger
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Kubota tech..BX2370, RCK60, B7100HST, RTV900 w plow, Ford 1100 FWA
Try engaging the PTO. If it dies when the PTO is engaged, probably the seat switch failed.
Is the switch embedded in the seat not able to get to? And is this something that can be bypassed to test?
well kinda--and again I'm going off of memory here.
it can be replaced, however, normally (as said) the screws that hold the seat base to the seat pan get rusted and won't come out, so you can't gain access to the switch. That's normally why I had to replace the seat on the ones I did.
I cannot comment on bypassing. It can, however, be tested with a voltmeter.
it can be replaced, however, normally (as said) the screws that hold the seat base to the seat pan get rusted and won't come out, so you can't gain access to the switch. That's normally why I had to replace the seat on the ones I did.
I cannot comment on bypassing. It can, however, be tested with a voltmeter.
I checked today and there isn't a switch in the seat, checked the switch under the seat and it seems to be the 3pronged plug for it. Thank you for the information. I'm sure this won't be the last tractor I work on!
I know the solution was discovered above for this case, but I wanted to share that I found the same behavior recently on my 2017 L3901 with a different cause. I confirmed the seat switch was good by doing the check on continuity between pins A and C when fully depressed. It checked good. Then I jumped the harness between pins A and C on the tractor side connector and the stalling behavior continued. After a little bit of head scratching I inspected the harness and found a broken wire on the tractor side of the harness about 1 inch from the connector. The strands in the wire were broken, but the plastic exterior was only partially compromised so it was not obvious initially that there was a broken wire. I soldered a short piece of wire in to repair it and that fixed the problem.