Question about Garden
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but if I toggle the mowe in reverse key quickly the motor is fine and the mower will stay running and even cut in reverse."***
That is the detail that might indicate the reverse gear position switch has failed, or is stuck. If the reverse gear sensing switch is active all the time (thinks the trans is in reverse, even when it is not), that would invoke the engine shut down provision in the PTO MIR safety interlock circuitry. Find the reverse gear sensing switch and unplug it to determine if it is shorted or stuck in the active position. On machines that use a "kill engine" circuit in the No Mow In Reverse interlock wiring, the Key switch position that over rules the interlock......actually REMOVES the reverse sensing switch from the scheme (and that circuit becomes open) so the reverse sensing switch cannot ground the magneto, or the ignition module, whichever is used in the specific application. I don't have a wiring diagram that covers your Simplicity, so I don't know exactly how your machine is configured, but all NMIR systems require a sensor (a switch) that detects reverse gear. A particular OEM might use that sensor to directly kill the engine, or feed that info to a relay that will kill the engine (or at least dis-engage the PTO). If a specific wiring diagram for your tractor could be viewed, a more exact answer might be available. Model numbers and serial numbers are needed to get that kind of detail online.
Posted on Aug 02, 2010
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Posted on Jan 02, 2017
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