As stated above, before employing any attachments or perhaps implements, always go through, understand and follow the manufacturer’s safety manual.
Only use equipment that is in good repair. Make sure that all guards or shields are in place and operational.
Guards around the power take-off shafts, gear box and other rotating/spinning gear are very important.
Lower hydraulics.
Shut down the tractor engine.
Apply tractor parking brake.
Hitch tractor to implement.
Ensure that universal joints are in the 
correct stage when connecting the shaft.
Do not wear loose clothes. Tie back long hair. Do not have on shoe laces dangling.
Stand away from moving or rotating devices. Where possible, function from the tractor seat, and have bystanders be at least 6 metres (20 foot) away.
Do not take out shields from the PTO shaft.
Make sure that the PTO spinner/integral shields rotate freely.
Utilize the correct size drive for the machine being powered.
Match the correct PTO speed for the device being used.
Do not stage over a rotating shaft. Even PTO shafts with guards will be dangerous. Walk around the gear.
Know how to prevent the tractor, engine and attachment quickly in the event of emergency.
Follow shutdown methods 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 spell it out the procedure of transmitting power in one indicate another.A PTO shaft, for instance, is a Power Take Off Shaft cylindrical metallic rod that attaches to a electricity source, like a tractor, at one end and an attachment, such as a brush hog mower, at the various other. When the tractor’s engine is running, electrical power flows along the shaft. The shaft rotates at engine acceleration, transferring energy from the engine to the attachment.
When attaching or detaching PTO-driven equipment:
PTO originated mainly through the ingenuity of farmers. During the past, power take-off utilized belt drives, drive shaft attachments and pneumatics like bleed air flow, but a geared tranny is more prevalent today.
Power Take-Off injuries are very common upon a farm. According to the National Agricultural Safety Database, most PTO crashes occur when outfits and/or limbs are entangled in the rotating PTO shaft.