Turn off power to the garbage disposal at the breaker or switch
Verify power is off by testing the disposal switch
Disconnect the power cord (or shut off hardwired power at the junction box)
Turn off the wall switch and remove the splash guard if present
Shut off water supply to the sink if needed and clear the cabinet area
Disconnect the drain line from the disposal (loosen clamp and pull apart)
Disconnect the dishwasher drain hose from the disposal (if present)
Remove the P-trap and any additional plumbing components blocking access
Support the disposal with one hand or with a helper
Unplug or disconnect electrical wires from the disposal (black to black, white to white, green/ground to ground)
Disconnect the mounting assembly from the sink by loosening the three mounting bolts/fasteners
Lower the old disposal carefully and remove it from the mounting ring
Clean the mounting flange and sink opening; remove old putty or gasket material
Install the new mounting flange/insulation and gasket as required by the unit
Attach the mounting ring to the sink and tighten evenly
If required, install the new splash guard and any included rubber components
Lift the new disposal into position and align it with the mounting ring
Twist/lock the disposal onto the mounting ring until secure
Reconnect the dishwasher drain line using the provided elbow/connector and clamp
Reconnect the drain pipe to the disposal and tighten all clamps
Reinstall the P-trap and any removed plumbing parts; tighten connections
Connect electrical wiring: black to black, white to white, green/ground to ground
Secure the wiring with the junction box cover and strain relief
Restore power at the breaker
Run water and test the disposal switch
Check for leaks at the drain connections and dishwasher connection
If equipped, run the reset button or correct any jam before final testing
Confirm smooth operation and no unusual noises or leaks