tractor pto

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PTO PTO

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Page 1: Tractor PTO

PTOPTO

Page 2: Tractor PTO

PTOPTO The Power Take Off - or PTO - The Power Take Off - or PTO -

transfers power from the tractor to transfers power from the tractor to another implement such as a grain another implement such as a grain auger, manure spreader, mower or auger, manure spreader, mower or feed grinderfeed grinder

This power transfer system helped to This power transfer system helped to revolutionize North American agriculture revolutionize North American agriculture during the 1930s. during the 1930s.

It is also one of the oldest and most It is also one of the oldest and most persistent hazards associated with farm persistent hazards associated with farm machinery. machinery.

Page 3: Tractor PTO

PTOPTO The PTO supplies The PTO supplies

power from the power from the tractor to operate tractor to operate farm equipment farm equipment implements via a implements via a drive shaftdrive shaft

Page 4: Tractor PTO

PTOs on the Farm PTOs on the Farm PTOs Drive…PTOs Drive…

Pull behind Pull behind equipmentequipmentBush HogBush HogBalerBalerSpreadersSpreadersPlantersPlantersHarvesting Harvesting equipmentequipment

Stationary Stationary equipmentequipmentGeneratorGenerator

Irrigation pumpIrrigation pump

Wood splitterWood splitter

Augers to fill grain Augers to fill grain bins and silosbins and silos

Feed GrinderFeed Grinder

Page 5: Tractor PTO

PTO InfoPTO Info

PTOs operate by turning at PTOs operate by turning at speeds of 9 - 16 rotations per speeds of 9 - 16 rotations per second. second.

This speed and the device make This speed and the device make the PTO very dangerous.the PTO very dangerous.

Page 6: Tractor PTO

PTO StubPTO Stub

Page 7: Tractor PTO

IIDIID

Implement Implement Input Input Driveline (IID) Driveline (IID) connects to connects to the PTO Stubthe PTO Stub

Page 8: Tractor PTO

IIDIID

The IID The IID connects the connects the PTO Stub to an PTO Stub to an implement or implement or other devise. other devise.

Page 9: Tractor PTO

PTO CouplingPTO Coupling

Page 10: Tractor PTO

PTO – Stationary UsePTO – Stationary Use

Page 11: Tractor PTO

PTO IncidentsPTO Incidents involve the tractor operator 78 percent of the time. involve the tractor operator 78 percent of the time. shielding was absent or damaged in 70 percent of the shielding was absent or damaged in 70 percent of the

cases. cases. entanglement areas were at the PTO coupling, either at the entanglement areas were at the PTO coupling, either at the

tractor or implement connection just over 70 percent of the tractor or implement connection just over 70 percent of the time. time.

stationary equipment, such as augers, elevators, post-hole stationary equipment, such as augers, elevators, post-hole diggers, and grain mixers were involved in 50 percent of diggers, and grain mixers were involved in 50 percent of the cases. the cases.

semi-stationary equipment, such as self unloading forage semi-stationary equipment, such as self unloading forage wagons and feed wagons, were involved in 28 percent of wagons and feed wagons, were involved in 28 percent of the cases. the cases.

nearly all incidents involving moving machinery, such as nearly all incidents involving moving machinery, such as hay balers, manure spreaders, rotary mowers, etc., were hay balers, manure spreaders, rotary mowers, etc., were non-moving at the time of the incident (the PTO was left non-moving at the time of the incident (the PTO was left engaged). engaged).

only four percent of the incidents involved no attached only four percent of the incidents involved no attached equipment. This means that the tractor PTO stub was the equipment. This means that the tractor PTO stub was the point of contact four percent of the timepoint of contact four percent of the time. .

Page 12: Tractor PTO

PTOPTO

The spinning The spinning motion of the PTO motion of the PTO creates a creates a ‘Wrapping Hazard’‘Wrapping Hazard’

Page 13: Tractor PTO

PTO Warning SignPTO Warning Sign

Page 14: Tractor PTO

GuardsGuards

A PTO Guarding A PTO Guarding system includes:system includes:• A master shieldA master shield• Connection end Connection end

shieldshield• Driveline shieldDriveline shield• Implement Input Implement Input

Connection shieldConnection shield

Page 15: Tractor PTO

PTO Shields on Farms

No PTO Shield22%

Shielded & OK65%

DamagedShield13%

Page 16: Tractor PTO

PTO Safety PracticesPTO Safety Practices Keep PTO systems shielded and guarded. Keep PTO systems shielded and guarded. Regularly test driveline guards by spinning or Regularly test driveline guards by spinning or

rotating them to ensure they have not become rotating them to ensure they have not become stuck to the shaft. stuck to the shaft.

Disengage the PTO and shut off the tractor before Disengage the PTO and shut off the tractor before dismounting to clean, repair, service, or adjust dismounting to clean, repair, service, or adjust machinery. machinery.

Walk around tractors and machinery rather than Walk around tractors and machinery rather than stepping over a rotating shaft. stepping over a rotating shaft.

Reduce PTO shaft abuse by observing the Reduce PTO shaft abuse by observing the following: avoid tight turns that pinch rotating following: avoid tight turns that pinch rotating shafts between the tractor and machine; engage shafts between the tractor and machine; engage power to the shaft gradually;power to the shaft gradually;

Page 17: Tractor PTO

PTO Safety RemindersPTO Safety Reminders