''Horse Sense on 

 Cooling Systems'' 



"Radiators choked wifb scale and slime, 

 Will belch and boil of fhe busiest time" 



w. 



HEN seated on your tractor, as cool as 

 a cucumber, you are almost on top of inter- 

 nal heat that is greater than the heat from a 

 BLAST FURNACE. Should the cooling system 

 fail to function, in a short time your tractor 

 engine would melt into a pile of pig iron. 



A chap who knows his engines told me 

 that a thin coating of scale only as thick as 

 your shirt sleeve (1/32 of an inch), retards 

 the cooling effect of the water jacket more 

 than a 3-inch slab of solid steel. 



Almost all water from wells is "hard" and 

 deposits scale or lime— Take a peek in your 

 teakettle at home. The same thing, or worse, 

 happens in the cooling system of your trac- 

 tor. Don't use water from your horse tank. 

 Use clean rain water only in tractors. 



Prevent straw, corn shucks and other for- 

 eign materials from clogging the front of your 

 radiator. 



Keep the space between radiator fins free 

 from grasshoppers, butterflies and other in- 

 sect "guts". 



Make sure that the overflow pipe is always 

 open. 



Clean and flush the "innards" of the cool- 

 ing system fwi'ce a year. Do it now in February 

 and be ready for Spring work. Clean, flush 

 again after harvest time. 



A SIMPLE CLEANING METHOD 



[ffffcommended in Circular 425 "Tractor "I 

 Repair and Maintenance" furnished by I 

 the Univertity 0/ fllinolt. J 



DETERMINE the amount of water the 

 cooling system will hold. 



FILL radiator half full of rain water. 



HEAT the remaining half of the water to 

 BOILING 



ADD to this- all the WASHING SODA it 

 will dissolve. 



POUR this hot saturated Washing Soda 

 solution into the radiator. 



RUN the engine for 10 to 20 hours at 

 regular work. 



DRAIN out this solution completely. 



FLUSH cooling system thoroughly with 

 clean water. 



REFILL radiator with CLEAN RAIN 

 WATER. 



IBLUE SE 



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LU£ SEAL "**-^eNN 

 |N N BOND •' BLUE SE 

 ILUE SEAL • P ENN BOND 



BLUE SEAL 



PENN BOND 



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LONGE'R LITE FOI^ YOUP T12ACT01? 

 MAY MIAN A LONGEIi LirE TOV YOU 



BLUE SEAL 



PENN BONO 



