Stalling under load

[Dugeee777]

2015 Kubota B3300SU stalling immediately when moving forward or reverse.

changed fuel, cleaned tank, added treatment, changed fuel filter, fuel lift pump and air filter.

idles smooth at 2900 rpm then stalls out as I tried to move.
Maybe Injection pump or injectors?

 

[GreensvilleJay]

assuming it ran fine just before 'service'....
it sounds more 'electrical' than 'fuel'...

parking brake on ?
seat switch broken ?
might be other 'safety stuff' but need WSM or wiring diagram .
others who own/work on that model might know.

 

[OntheRidge]

I know that when I push the treadle without my butt planted firmly in the seat my tractor will stall. Conversely if I stand a little while moving, say to see where forks are, it stalls. just my 2 cents. Good Luck!

 

[North Idaho Wolfman]

2015 Kubota B3300SU stalling immediately when moving forward or reverse.

changed fuel, cleaned tank, added treatment, changed fuel filter, fuel lift pump and air filter.

idles smooth at 2900 rpm then stalls out as I tried to move.
Maybe Injection pump or injectors?

HST, or seat switch issue.

 

[Dugeee777]

HST, or seat switch issue.

Yep. Seat safety switch. Thanks a ton.