Here is a general overview of how to locate and check the clutch brake safety switch on a Yard Machine riding lawn mower:
1. Park the lawn mower on level ground and engage the parking brake.
2. Locate the clutch brake safety switch. It is usually located on the brake pedal, near the base where it connects to the frame of the lawn mower.
3. Inspect the switch for any signs of damage or corrosion. Look for any loose wires or broken connections.
4. Check the switch for continuity using a multimeter. Set the multimeter to the continuity setting and place the probes on the terminals of the switch. If the switch is working properly, the multimeter should indicate continuity when the brake pedal is depressed and no continuity when the brake pedal is released.
5. If the switch is not working properly, you may need to replace it. Disconnect the wires from the switch and remove the mounting bolts. Install the new switch and reconnect the wires.
6. Test the new switch to ensure it is functioning properly. Engage and release the brake pedal, and check that the engine only starts when the brake pedal is depressed.
Note that the exact location and design of the clutch brake safety switch may vary depending on the specific model of your Yard Machine riding lawn mower. It is recommended to refer to your owner's manual for specific instructions on locating and checking the clutch brake safety switch on your lawn mower.