Question

before attempting to connect or disconnect pto - powered attachments, be sure to ____. release the wheel brakes attach the pto shaft guard start the engine and engage power to the pto shut off the engine and disengage the pto

Explanation:

Safety is crucial when dealing with PTO - powered attachments. Working on them while the engine is running and PTO engaged is dangerous. Shutting off the engine and disengaging the PTO ensures no unexpected movement or power transmission during connection or disconnection.

Answer:

shut off the engine and disengage the PTO