42 ROUGH-AND-TUMBLE LNGINLLKING 



docs exactly what we stated the blower does, and IT u 

 is necessary to use the blower in order to keep up stt 

 you can conclude that your engine is in bad shape, and 

 yet there arc times when the blower is necessary, even 

 when your engine is in the best of condition. For in- 

 stance, when you have poor fuel and are working your 

 engine very light, the exhaust steam may not be suf- 

 ficient to create enough draught for poor coal, or wet 

 or green wood. But if you are working your engine 

 hard the blower should never be used. If you have bad 

 fuel and it is necessary to stop your engine you will find 

 it very convenient to put on the blower slightly, in order 

 to hold your steam and keep the fire lively until you 

 start again. 



It will be a good plan for you to take a look at the 

 nozzle on the blower now and then, to see that it does not 

 become limed up and to see that it is not turned to the 

 side so that it directs the steam to the side of the stack. 

 Should it do this, you will be using the steam and get- 

 ting but little, if any, benefit. It will also be well for 

 you to remember that you can create too much draught 

 as well as too little; too much draught will consume your 

 fuel and produce but little steam. 



A GOOD FIREMAN 



What constitutes a good fireman? You no doubt have 

 heard the expression : "Where there is so much smoke, 



