When Tractors first appeared on farms in the early 20th century they were just used for pulling machines as horses had been for centuries before many of the machines they pulled were just converted horse powered machines.
Today's tractors however are much different with the latest models having on-board computers. Ours are not so technical however but the rear is basically the same.
This picture shows just what these can do.

Click on the part that you wish to learn about

THE 3 POINT LINKAGE.
Machines that are not pulled on wheels may be fully mounted onto the tractor by this means our plough is an example. They are attached in 3 places on the toplink and the 2 lift arms.

 

 

THE DRAWBAR .
Drawbars are used for attaching things such as trailers and they are either standard, which the machine is attached by a Pin and Clevis system, or the more common Pick-up-hitch (PUH)

With the pin and clevis the driver has to get off the tractor to attach the machine but with the PUH it is done automatically from the tractor seat.
(BACK to TOP)

THE TOPLINK.
This is where the toplink attaches to the tractor and this is the toplinkage, which is adjustable in order to set the machine in a level position.(BACK to TOP) 

 

 

THE LIFT ARMS.
These are powered internally by the tractors hydraulic system and they can be set to their required height from the tractor seat.(BACK to TOP)

 

 

THE POWER TAKE OFF (PTO).
This is what is used to drive the machine.
Early machines were usually pulled and powered by the wheels but most modern machines are powered this way. The power is transmitted directly from the engine and in the case of this tractor it delivers around 75 horsepower (hp). Moreton's biggest tractor delivers around 140hp for comparison. Machines are usually designed for the PTO to run at 540 revolutions per minute (rpm) or 1000rpm with these 2 different shafts for each. (BACK to TOP)

 
THE EXTERNAL SERVICES.
These are valves that carry oil at high pressure to power some machines.
The most obvious being the tipping on a trailer. (BACK to TOP)

 

 

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