Turn off power to the garbage disposal at the breaker
Unplug the disposal if it has a plug
Disconnect the dishwasher drain hose if attached
Place a bucket under the sink to catch water
Loosen the drain trap and remove the discharge pipe
Disconnect the electrical wiring or unplug the unit
Support the disposal with one hand or a helper
Rotate the mounting ring counterclockwise to release the disposal
Lower and remove the old disposal
Remove the sink flange and mounting assembly if replacing them
Clean the sink opening and remove old plumber’s putty
Install the new sink flange with plumber’s putty
Attach the mounting assembly according to the manufacturer’s instructions
Lift the new disposal into place and lock it onto the mounting ring
Reconnect the discharge pipe and tighten the connections
Reconnect the dishwasher drain hose if applicable
Reconnect the electrical wiring or plug in the unit
Restore power at the breaker
Run water and test the disposal for leaks
Turn on the disposal and verify proper operation