Fuels, Lubricants, and Coolant/Replenish Supplemental Coolant Additives Between Coolant Changes REPLENISHING SUPPLEMENTAL COOLANT ADDITIVES (SCA’S) BETWEEN COOLANT CHANGES 02 10 RG6261 -UN-22APR92 RG6262 -UN-22APR92 Through time and use, original additives eventually lose their effectiveness and must be recharged with additional supplemental coolant additives available in the form of liquid coolant conditioner. IMPORTANT: ALWAYS maintain coolant at correct level and concentration. DO NOT operate engine without coolant for even a few minutes.
Maintaining the correct coolant conditioner concentration (SCA’s) and freeze point is essential in your cooling system to protect against liner pitting, corrosion, and freeze-ups due to incorrect coolant solution. If frequent coolant make-up is required, the glycol concentration should be checked with JT05460 Refractometer to assure that the desired freeze point is maintained. Follow manufacturer’s instructions provided with refractometer. A coolant strip test, available from your dealer, provides a simple, effective way to check freeze point and molybdate/nitrite levels. These results can be compared to the SCA chart to determine the amount of coolant conditioner in your system.
See ENGINE COOLANT SPECIFICATIONS earlier in this group for proper mixing of coolant ingredients before adding to the cooling system. NOTE: Refer to your vehicle operator’s manual for specific service intervals for checking and charging your coolant. For a more thorough evaluation of your coolant, perform a CoolScan analysis. If a CoolScan analysis is not available, recharge system per instructions printed on label of TY16004 or TY16005 John Deere Liquid Coolant Conditioner. CTM42 (24MAR95) 02-10 6076 Diesel Engines—S.N. (500000— ) RG,COOL4,CTM -19-23FEB95 160101 PN=29