The Diesel tractor

Explains the principles of the operation of the diesel tractor and illustrates methods of service on the farm. The film compares the basic principles of operation of spark ignition and compression ignition engines; stresses the need for cleanliness in the transfer and storage of fuel; describes in detail the engine fuel system and how to service the injector and filter units; recommends the use of heavy duty detergent oils to reduce varnish formation on pistons.