300 Series Safety Circuit

["Manic-Mechanic" 1,253]

Hello,

  Riding a 312 can you rise off the seat

while driving without a stall, long as the pto is not engaged?

[953 nut 59,264]

YES

 

Edited March 18, 2021 by 953 nut

["Manic-Mechanic" 1,253]

I don’t know how I missed that answer! Sorry! lol!

Edited March 18, 2021 by oldman

["Manic-Mechanic" 1,253]

48 minutes ago, 953 nut said:

YES

 

Should say, can the pto circuit effect the other two brake/seat 

I’ve traced through the schematics and followed the circuit to each component. Learned the brake circuit uses 12v.

The seat short to magneto (green/black.) 

Just can’t figure how the two appear crossed?

Anyone tell me which of these plugs goes on the top switch and at what point in the schematics can I see which is which?

Thanks for all the input, greatly appreciated.

 

Oldman

 

 

Edited March 18, 2021 by oldman

[gwest_ca-(File Mod) 11,393]

A diagram from 1986 when the 420-LSE had magneto ignition so use that. You can view it by click on the picture and also download.

Garry

[roadapples 6,983]

None of my tractors have safety switches. Therefore none will be sold as long as I'm alive....

["Manic-Mechanic" 1,253]

12 minutes ago, gwest_ca said:

A diagram from 1986 when the 420-LSE had magneto ignition so use that. You can view it by click on the picture and also download.

Garry

I see the pto engaged, orange/dark blue going to magneto (closed)

I see the Tan/Purple going to S on the ignition (open)

So I should be able to test the switch while PTO engaged and identify the open/closed circuits.

Or can someone just tell me what switch is on top? Lol!

Ok I’ve gone all through the circuits and find nothing odd but the pc board.

Thank you for the files, have to get into those awhile.

["Manic-Mechanic" 1,253]

58 minutes ago, gwest_ca said:

A diagram from 1986 when the 420-LSE had magneto ignition so use that. You can view it by click on the picture and also download.

Garry

I had to go to the pc to download the good stuff, stupid phone would put it anywhere but where I can find it again! How do you remove the contacts from the connecter 111498? (I broke one)

Edited March 18, 2021 by oldman

["Manic-Mechanic" 1,253]

I see the switches and mine is paired the same as the 308-8 as far as the NO/NC and wire colors. This is the schematic for 1990 Classic (Magneto)

Still can't find anything in the switches so focus on those grounds!

Switch Safety schematic Pto Brake Clean.pdf

Edited March 20, 2021 by oldman