Scotts S2554 safety circuit

[festus3]

I have an older (16yrs) Scotts (By Deere) S2554. It has a 25 hp Kohler engine and electric PTO. It will start fine and run as long as the brake is engaged and the PTO is off. As soon as the brake is released or the PTO turned on, the engine stops. I have checked the operation of the seat switch and the reverse switch. I even jumpered the seat switch with no change. Swapped the two relays around and the symptoms are exactly the same. Does anyone have any other ideas, or a wiring diagram for this model?

 

[Littlebluejeep]

I know this is an old post, but I am now experiencing the same trouble. Anyone have a solution. I would like to bypass the safety switches and get this baby running!

 

[Dave M7040]

I know this is an old post, but I am now experiencing the same trouble. Anyone have a solution. I would like to bypass the safety switches and get this baby running!

The electric clutch pto switch ( if there is one is used for several safety functions). It makes things very confusing.

Look for a single wire small diameter wire coming from the engine spark coils.. Typically all the safety features put this wire to ground thru a relay stopping the engine. It will just slip unto the engine with a crimp on style spade connector.

Start by unplugging this one wire from the engine and see if it will start and run.

If it will you now have a path to solving the problem.

Dave M7040

 

[Williy]

google search got this:

JOHN DEERE S2554 SCOTTS YARD AND GARDEN TRACTOR Service Repair Manual by 163114103 - Issuu

issuu.com

Scotts S2554 Wiring Diagram

Download Scotts S2554 Wiring Diagram Book

pdf.wecabrio.com

Unlimited Downloads

read-download-books.com

willy

 

[tomplum]

Look close at the terminal for the seat switch. If it has a removeable insert in the center- pop it out. Those that do have a little shorting clip behind the center tab which sometimes either goes funky or at least prevents the disabling of the switch. Then fix the switch. It keeps you alive. Welcome to TBN.

 

[joecdeere]

see if this helps

 

[River View GC]

I have an older (16yrs) Scotts (By Deere) S2554. It has a 25 hp Kohler engine and electric PTO. It will start fine and run as long as the brake is engaged and the PTO is off. As soon as the brake is released or the PTO turned on, the engine stops. I have checked the operation of the seat switch and the reverse switch. I even jumpered the seat switch with no change. Swapped the two relays around and the symptoms are exactly the same. Does anyone have any other ideas, or a wiring diagram for this model?

Did you ever find a solution to the issue with the S2554 quitting when the brake was released? I have a similar problem except that the Kohler doesn't quite die, but runs very rough when the brake is released. Re-engage the brake and it runs like a champ. Thanks.

 

[River View GC]

I know this is an old post, but I am now experiencing the same trouble. Anyone have a solution. I would like to bypass the safety switches and get this baby running!

Did you ever find a solution to the issue with the S2554 quitting when the brake was released? I have a similar problem except that the Kohler doesn't quite die, but runs very rough when the brake is released. Re-engage the brake and it runs like a champ. Thanks.

 

[Dave M7040]

My comments may give you a few clues. Kohler sells its small engines to many equipment manufacturers so they have an industry recognized way to interface their engine with the equipment. In my case it was a Toro Zero turn.

Near the engine there was an electrical connector which tied the engine to the mower. Kohler trouble shooting had me remove one wire from the connector and then try the engine. The wire removed was the kill wire which was tied into all the mowers safety switches. By removing one wire from the connector the engine started and ran just great which established the issue was on the mower. Toro had a relay tied into the Kohler kill circuit so if a safety issue arose, the relay would ground the Kohler kill circuit stopping the engine.

I suggest you spend some time on the Kohler site identifying the connector between the S2554 and the engine. Then identify the engine ground circuit. You need to prove if the engine is trouble free or not.

Dave M7040

 

[River View GC]

Very helpful information. Thanks for taking time to reply.