Seat safety switch, do I or don't I

[BeezFun]

I'm confused, my B2710 will move if I'm standing on the ground and press on the HST pedal (and the engine is running). Seemed strange, what's the point of a seat safety switch if the tractor can drive off without me. Looked under the seat and sure enough there's a switch there that seems to be working, at least it clicks mechanically when I operated the plunger. So I look in the owner's manual and shop manual and was totally surprised to find no evidence of a seat switch, either in the description or schematic. It calls out 3 safety switches: PTO, HST pedal and clutch. Could the schematic be calling it something besides a seat safety switch? The other safety switches are clearly and logically labeled and do what I expect.

 

[teg]

Sounds like an "Ideal" seat switch I would like to get one... I have to use one hand to put pressure on the seat, so I can use the other hand to push the foot petal!!! I don't need to move it but a few inches but it would be nice to have one like yours

 

[beppington]

I'll trade seat switches with ya ... I had to jumper mine to bypass it

 

[BeezFun]

I'm glad to hear you've all got switch envy, but I would like to understand why there's no mention of the seat switch in the user's manual or service manual. Or maybe I'm just missing it. Next time I've got the thing in the shop I'm going to put a meter on that switch and see if it really does anything, then figure out what it's connected to.

 

[beppington]

Unplug the connector going to the seat switch & see if that causes the tractor to die when you touch the HST pedal.

I don't remember whether my manual discusses the seat switch, & I don't have the service manual.

 

[teg]

...or have the tractor running with the PTO on, then stand up. If it's like mine, that will also kill the engine. I have to tilt my seat up to run the PTO and be out of the seat.

 

[CHDinCT]

My guess is it's an operator present switch for the PTO switch. You must be in the seat to activate the PTO (putting aside lifting the seat up to run the rear PTO for things like a chipper). Like beppington suggested, unplug it and try the PTO and see what happens.

 

[crazyal]

...or have the tractor running with the PTO on, then stand up. If it's like mine, that will also kill the engine. I have to tilt my seat up to run the PTO and be out of the seat.

I have to have the parking brake set as well as the seat tilted.

 

[BeezFun]

Unplug the connector going to the seat switch & see if that causes the tractor to die when you touch the HST pedal.

That's a simple test, I'll try that next time I use the tractor. I did actuate the switch while I had the engine running and it did nothing, but I didn't try to move the HST.

 

[sw03]

I'll trade seat switches with ya ... I had to jumper mine to bypass it

I jumped all my switches on my Bx..not needed.