As mentioned above, before employing any attachments or perhaps implements, always examine, understand and follow the manufacturer’s safety manual.
Only use equipment that is in good repair. Be sure that all guards or shields will be in place and operational.
Guards around the power take-off shafts, gear field and other rotating/spinning equipment are very important.
Lower hydraulics.
Shut off the tractor engine.
Apply tractor parking brake.
Hitch tractor to implement.
Ensure that universal joints are in the correct stage when connecting the shaft.
Usually do not wear loose clothing. Tie back long curly hair. Do not use shoe laces dangling.
Stand away from moving or rotating apparatus. Where possible, operate from the tractor chair, and have bystanders always be at least 6 metres (20 ft) away.
Do not remove shields from the PTO shaft.
Be sure that the PTO spinner/essential shields rotate freely.
Utilize the correct size travel for the device being powered.
Match the right PTO acceleration for the machine being used.
Do not stage over a rotating shaft. Even PTO shafts with guards will be dangerous. Walk around the equipment.
Know how to prevent the tractor, engine and attachment quickly in the event of emergency.
Follow shutdown types of procedures and wait for most moving parts to stop before getting off the tractor or approaching the attachment.
Disconnect PTO when not in use.

“Power Take Off” (PTO) is a term used to describe the process of transmitting power from one indicate another.A PTO shaft, for example, is a cylindrical metal rod that attaches to a power source, such as a tractor, at one end and an attachment, like a brush hog mower, at the various other. When the tractor’s engine is normally running, electric power flows along the shaft. The shaft rotates at engine swiftness, transferring strength from the engine to the attachment.
When attaching or detaching PTO-driven equipment:

PTO was developed mainly Power Take Off Shaft through the ingenuity of farmers. Previously, power take-off used belt drives, drive shaft attachments and pneumatics like bleed air flow, but a geared tranny is more common today.
Power Take-Off injuries are very common in a farm. In line with the National Agricultural Safety Database, most PTO injuries occur when attire and/or limbs will be entangled in the rotating PTO shaft.