B7510HST Stalling

[sirois]

My B7510HST wants to stall after about an hours use. When I let up on the forward drive the engine returns to full power But when I go forward again It wants to die Like its not getting fuel . Anyone have any ideas?

[Service Dept Vic]

What are you doing with this tractor for that hour?

Could be a transmission issue that's bogging the engine down. Oils good? Are you up on your servicing? Filters and screens clean?

[sirois]

I was just going down a paved road heading home. its just like if I get off the seat and the safety switch shuts down the engine but I have bypassed that switch. I tried putting a load (tiller) on once it starts doing that but it only wants to stall when I am moving forward or reverse. I am baffled.

I did all the maintenence I could think of. changed oil + filter , changed air filter. changed fuel filter, changed hydrolic fluid

[Service Dept Vic]

You have a transmission issue.

[sirois]

A mechanic told me that it can be the stop solenoid so I will replace that for $150 befor I go the tranmission route since that will cost me $1000+.

Does anyone have a service manual for the B7510 ?

[sirois]

I changed the stop solenoid and it did not solve the problem.

[Service Dept Vic]

I think I have a WSM for the B7510.

[sirois]

I think I stumbled on the problem. Its a faulty seat switch that turns the engine off if you fall off. I used a jumper to bypass the switch and it ran fine.
I put the switch back on and it began stalling again.
Now its bypassed permanently !!!!

[Service Dept Vic]

You know what? I had that same stupid switch on an old ride em' lawn tractor I had. It drove me crazy! Great diagnosis!

[Steve Agabob]

I have the same tractor, connected the switch I found under the instrument cowel that I thought was the headlight connection....headlights work but now it stalls.....grrrrr.