''Horse Sense on 

 Cooling Systems'^ 



"Radiafors choked with scale and dime. 

 Will belch and boil at fhe busiest time" 



w. 



HEN seated on your (racfor, as cool as 

 a cucumber, you ore 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". 



Moke sure that the overflow pipe is always 

 open. 



Clean and flush the "innards" of the cool- 

 ing system twice a year. Do it now in February 

 and be ready for Spring work. Clean, flush 

 again after harvest time. 



A SmPlt CLEANING METHOD 



[R9Comm9iKM in Circular 425 "Tractor "I 

 ffvpoir and Mainimnancn" fumitffd by I 

 tho Univrtity o/ ///moit. 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 



I 



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. I 



REFILL radiator with CLEAN RAIN 

 WATER. I 



[BLUE SE 



IN BONO 



LUE SEAL '^^i^tMN 

 tNN BOND ■' BLUE SE 



ItUE SEAL • PENN BOND 



BLUE SEAL 



PENN BOND 



BLUE SEAL 



LONGII^ LITE FOir YOUD TPACTOP 

 MAY MEAN A LONGEIi LITE TOU YOU 



BLUE SEAL 



PENN BOND 



^jf0 



