294 FARM MACHINERY REPAIR 



14) Fill tank with gasoline. 



15) Crank up pressure motor or pump air into tank. 



16) Fire a furnace and clean out all ashes and clinkers. 



17) Note use of special devices for controlling draft and tem- 

 perature. 



18) Start and operate different water systems. 



19) Note the difference in amount of work required when 

 water is carried in and when it is pumped by machinery. 



20) Study washing equipment. 



21) Note difference in amount of time required to do the 

 washing when a power washing machine is used and 

 when a scrub board is used. 



266. Gas Tractor Operation. (Fig. 313.) 



Requirements: To become thoroly familiar with the method 

 of operation of as many types of tractors as possible. 



Tools and Materials Needed : Set of tools secured with tractor. 

 Fuel, oil and extra spark plugs. 



Preliminary Instructions: In operating and handling a trac- 

 tor, one should be very careful to avoid breaking any 

 parts. Always be sure then go ahead. Do not attempt 

 to start a tractor for the first time unless under the direc- 

 tion of some one who knows. Remember, that there is 

 more danger in starting a tractor than in starting a small 

 stationary engine, on account of danger of personal in- 

 jury and of damage to the tractor and buildings. Re- 

 member, also, that you are handling an expensive ma- 

 chine when operating a tractor. 



Working Instructions: 

 A. Getting tractor ready and starting it. 

 1) See that the tractor is completely lubricated. 



