HOI IIILK ENGINKE* 1CX) 



the simple engine, but only wl arc run at the 



full loud all the time. 



If. r. the load fluctuates and should the load 



be light for any considerable part of the day, they 

 waste the fuel instead of saving it as compared 



;le engine. 



No engine can be subjected to more variation of 

 loads than the traction engine, and as the above are 

 I the reader can draw his own conclusions. 



FRICTION c: 



The friction clutch is now used almost exclusively 

 for engaging the engine with the propelling gearing 

 of the traction drivers, and it will most likely give 

 you more trouble than any one thing on your engine, 

 fact that to be satisfactory they require a 

 nicety of adjustment that is very difficult to attain, a 

 half turn of the expansion bolt one way or the other 

 may make your clutch work very nicely, or very un- 

 ! you can only learn this by carefully 

 adjusting the friction shoes, until you learn just how 

 much clearance they will stand when the lever is out, 

 in order to hold sufficcient when the lever is thrown in. 

 our clutch fails to hold, or sticks, it is not the 

 fault of the clutch, it is not adjusted properly. And 

 you may have it correct today and tomorrow it will 

 need :it, caused by the wear in the shoes; 



