I have a Toro Wheel Horse 13-38 XL (model number 71185) When I turn the key, nothing happens except for a very faint click. I have replaced the solenoid and relay. When I jump the solenoid terminals, the engine turns but does not start. But nothing happens when I turn the key. I have PTO disengaged, parking brake engaged, it is in neutral, and I am sitting on the seat so the seat safety switch is engaged. I have found a light blue wire that goes into a connector along with a red/wht wire, but I can not find any place for it to plug in to??? I am not sure what the problem is at all and any help is appreciated. Thanks.
It is not uncommon for a safety switch to get misaligned and not work correctly, also it is not uncommon for a switch not to work even if it is engaged.
You need to check all the switches that must all be properly aligned and engaged in order for the engine to start. As for the light blue wire, I am not sure 100% however typically blue wireds on wheel horse equipment are used in the ignition system. Depending on your model it may be the main ignition power line which runs from the ignition switch (S) connection or (start) connection, then goes to PTO interlock switch, then goes to the Pedal interlock switch, then finally to the starter solenoid. Which sounds like where you have to look because along this blue wire at many points and switches, there is a problem either with a connection (the lose blue wire) or a bad interlock switch along it's way to the starter solenoid. You should also check the PTO interlock switch because it also is connected to a kill relay that will prevent the engine from starting id it is faulty (that light click your hearing, the starter solenoid would be a louder click).
There is a typical ignition service manual available at http://www.mywheelhorse.com/graphics/file/Engines/Engine-Electrical_Service-Manual.pdf It has the typical wireing diagram and all the information you will need presuming you have enough electrical background to use a multimeter.
The website at http://www.scribd.com/doc/47347708/Toro-wheelhorse-Demystification-Electical-wiring-diagrams-for-all-WheelHorse-tractors has diagrams specific for each model but you have to make an account (free) to use the website, and lastly the website http://www.mywheelhorse.com is a invaluable website for anyone who owns a Wheel Horse. Let me know what you figure out!
SOURCE: craftsman model 917.272950 lawn tractor won't start
OPERATOR PRESENCE SYSTEM
Be sure operator presence and interlock
systems are working properly, If your
tractor does not function as described,
repair the problem immediately.
• The engine should not start unless the
clutch/brake pedal is fully depressed
and attachement clutch control is in the
disengaged position.
• When the engine is running, any
attempt by the operator to leave the
seat without first setting the parking
brake should shut off the engine.
• When the engine is running and the
attachment clutch is engaged, any
attempt by the operator to leave the
seat should shut off the engine.
• The attachment clutch should never
operate unless the operator is in the
seat.
Check your seat switch and clutch switch wires be sure that the connection to each switch is making contact and the mechanism that activates the switch is actually activateing them in other words be sure the clutch is pushing the switch in and your seat switch is occupied and be sure all grounding wires a intack
especially from your battery negative to the frame.You also could have a neutral safety switch which requires your transmission to be in neural.
try these things and let us know how we can further help from more of your input.
SOURCE: 1987 john deere 750 compact tractor 4 wheel drive, wont start
percussive maintenance my friend. Try banging on the solenoid and starter with a hammer while in the start position. Also, if you have a voltmeter, you can see where voltage is getting to and that will help you as well.
SOURCE: Trying to find wiring for safety switches: Brake,
When you turn the key to START does it click? If yes, replace the solenoid, if no, check first for a bad fuse. Usually right behind the engine on the right side of the tractor. Using a test light or VOM meter you could also check to see if it is getting voltage at the small post on the side of the solenoid. Depending on the make and model number of the unit, it could have one or two small posts, one would be ground the other 12 volt positive. If it only has one, it would be 12 volt positive. If you get voltage there when you put the key in START position , then it is definitely the solenoid
You weren't very clear but when you jumped across the solenoid if it started and ran that would verify one or the other of the above.
You don't give a model number and this is NOT a generic problem,every tractor has specific wiring so in order to find a wiring diagram, you first need to know the model number and brand.
SOURCE: lawn tractor, blades won't engage
the circuit also goes to the trans so you can't mow in rev also on the brake/clutch pedal switch assuming you check the fuse already
1,623 views
Usually answered in minutes!
×