Power take-off – Wikipedia
A splined drive shaft is most commonly found on a tractor or truck, but semi-permanently mounted power take-offs can also be found on industrial and marine engines, and an accessory drive can be used in conjunction with a constant speed drive in aircraft applications.
In 1920, IHC offered the PTO option on their 15-30 tractor, and it was the first PTO-equipped tractor to be submitted for a Nebraska tractor test. The PTO was a competitive advantage for IHC in the 1920s, and most PTOs built today[when?] are live.
Power take-off entanglements are an example of agricultural events that can result in death or permanent disability; some implements use light free-spinning protective plastic guards to enshroud the PTO shaft, and the Health and Safety Executive provides guidance in the form of a leaflet in the United Kingdom.
The ISO 500 standard for PTOs calls for operation at 540 revolutions per minute (rpm). A shaft rotating at 540 rpm has six splines and a diameter of 1 3u20448 inches (350mm). The first industry standard for PTO design was adopted by ASAE in 1927. A 10-spline type was used with some early equipment such as the 1948 Land Rover.
Use on commercial vehicles
The PTO is engaged and disengaged using the main transmission clutch and a remote control mechanism, and different models will offer different “PTO shaft rotation to engine RPM” ratios. Most Unimogs come with front and/or rear PTOs and hydraulics, as well as three point hitch systems.
A split shaft PTO is mounted to the truck’s drive shaft, with the gearbox-facing shaft transmitting the engine’s power to the PTO. Because the PTO can only be used while the vehicle is moving, 4×4 drive systems must be available.
“Sandwich” split shaft
A “sandwich” type split shaft unit is installed between the engine and the transmission, and usually comes with its own lubrication system. Because the gearbox is sandwiched between the engine and the transmission, the driveline must be widened to accommodate the installation.
According to Graeme Quick, the medal for the first recorded power take-off on mobile machinery should go to an Aveling and Porter Bell-type reaper, which was displayed at the 1878 Universal Exposition in Paris.
How does a PTO work on a tractor?
The tractor’s stub shaft, also known as the PTO, transfers power from the tractor to a PTO-driven machine or implement by connecting a drive shaft from the machinery to the PTO stub shaft. The PTO and drive shaft rotate at 540 rpm (9 times/sec.) or 1,000 rpm (16.6 times/sec.) respectively.
How many types of PTO are in a tractor?
The Independent PTO comes in two varieties: mechanical and hydraulic.
What does PTO mean on a semi?
PTOs (power take-offs) are mechanical gearboxes that attach to apertures on truck transmissions and are used to transfer engine power to auxiliary components, most commonly a hydraulic pump.
Do all tractors have a PTO?
PTOs are found on almost all modern tractors; it’s rare to find one that doesn’t. Compact tractors, for example, have PTOs despite their small size. It’s important to note that PTOs differ in their ability to operate for a long time.
What direction does a tractor PTO turn?
Agricultural tractors and equipment are the main field of application for this symbol, which indicates that the PTO shaft rotates clockwise.
Is a tractor A PTO standard?
Because not all tractors have a power take-off that meets the standards, check the tractor’s operating manual before using any PTO to make sure the PTO and implements are properly matched.
What is the difference between live and independent PTO?
A live PTO uses a two-stage clutch, which allows the operator to change gears or slow down while the PTO is still running. Independent. An independent PTO uses a separate clutch to control the PTO shaft.
What was the first tractor with live PTO?
Subject: Which of the Ford Tractors was the first to have live PTO? The *00 series, which debuted in 1955, was the first, with the *60 models being the live PTO models, made possible by the two-stage clutch.
What is PTO slang for?
P.T.O., p.t.o. : a block of hours that combines all of an employee’s paid sick days, personal days, and vacation time; also P.T.O., p.t.o. : a block of hours that combines all of an employee’s paid sick days, personal days, and vacation time; also P.T.O., p.t.o. : a block
What is a wet kit on a semi truck?
Wet kits (also known as wetline kits) are hydraulic hoses and fittings, reservoirs/tanks, filters, control valves, pumps, and PTOs that are installed on trucks to operate dump trailers, lowboys, live bottom trailers, and other specialty applications.
Can you reverse the PTO on a tractor?
Unfortunately, PTOs only work in one direction – your experience is one of the reasons hydraulic post hole drills (PHDs) are so popular because they can be reversed to get out of any jam.
What is tractor PTO horsepower?
While engine horsepower is useful to a point, there is a more meaningful number: power takeoff horsepower (PTO-HP), which is based on a measurement with the engine set at the speed that turns the PTO at either 540 or 1,000 rpm.
What RPM is 1000 PTO?
540 and 1000 PTO at 1950 rpm.