As stated above, before using any attachments or perhaps implements, always read, 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 set up and operational.
Guards around the energy take-off shafts, gear field and other rotating/spinning tools are very important.
Lower hydraulics.
Shut down the tractor engine.
Apply tractor parking brake.
Hitch tractor to implement.
Make sure that universal joints happen to be in the correct period when connecting the shaft.
Usually do not wear loose clothing. Tie back long locks. Do not don shoe laces dangling.
Stand from moving or rotating apparatus. Where possible, operate from the tractor chair, and have bystanders become at least 6 metres (20 feet) away.
Do not remove shields from the PTO shaft.
Be sure that the PTO spinner/essential shields rotate freely.
Use the correct size drive for the machine being powered.
Match the right PTO acceleration for the device being used.
Do not stage over a rotating shaft. Also PTO shafts with guards will be dangerous. Walk around the gear.
Know how to prevent the tractor, engine and attachment quickly in case of emergency.
Follow shutdown Power Take Off Shaft techniques and wait for most moving parts to avoid before moving away from the tractor or approaching the attachment.
Disconnect PTO you should definitely in use.

“Power REMOVE” (PTO) is a term used to describe the process of transmitting power from one point to another.A PTO shaft, for example, is a cylindrical metallic rod that attaches to a electric power source, such as a tractor, at one end and an attachment, for instance a brush hog mower, at the different. When the tractor’s engine is normally running, 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 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 common today.
Power Take-Off injuries are very common upon a farm. In line with the National Agricultural Safety Database, most PTO incidents occur when clothing and/or limbs happen to be entangled in the rotating PTO shaft.