Fuels, Lubricants and Coolant IMPORTANT: Air must be expelled from cooling system when system is refilled. Follow procedure given in your operator’s manual. After adding new coolant solution, run engine until it reaches operating temperature. This mixes the coolant solution uniformly and circulates it through the entire system. After running engine, check coolant level and entire cooling system for leaks. G Engine coolant MUST BE drained and replaced at a maximum of 1200 hours or 2 years of engine operating time, whichever comes first. Contact your authorized servicing dealer or engine distributor, if there are further questions.
The ethylene glycol base (antifreeze) can become depleted of SCA’s allowing various acids to form that will damage engine components. In addition, heavy metals, such as lead, copper and zinc, accumulate in the ethylene glycol base. The heavy metals come from corrosion that occurs to some degree within a cooling system. When a coolant is saturated to the point where it can no longer hold heavy metals and other dissolved solids, they settle out and act as abrasives on engine parts. DISPOSING OF COOLANT NOTE: Service intervals listed are a recommended engineering guideline. Refer to your vehicle operator’s manual for a specific service interval.
At 1200 hours/2-year service interval, flush cooling system and replace thermostats as described in your operator’s manual. Clean cooling system with a heavy duty cooling system cleaner such as FLEETGARD ® RESTORE™. Follow the instructions provided with cleaner. Refill cooling system with the appropriate coolant solution. See ENGINE COOLANT SPECIFICATIONS, earlier in this group. Improperly disposing of coolant can threaten the environment and ecology. Use leakproof containers when draining fluids. Do not use food or beverage containers that may mislead someone into drinking from them. Do not pour waste onto the ground, down a drain, or into any water source.
Inquire on the proper way to recycle or dispose of waste from your local environmental or recycling center, or from your John Deere dealer. IMPORTANT: NEVER overfill the system. A pressurized system needs space for heat expansion without overflowing at the top of the radiator. Coolant level should be approximately 19 mm (3/4 in.) below bottom of radiator filler neck. FLEETGARD® is a registered trademark of the Cummins Engine Company. RESTORE™ is a registered trademark of FLEETGARD®. G-14 4/7/95 AllTractorManuals.com TS TS 1133