Service as Required Adding Coolant CAUTION: Explosive release of fluids from pressurized cooling system can cause serious burns. Shut off engine. Only remove filler cap when cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely. TS281 –UN–23AUG88 IMPORTANT: Never pour cold liquid into a hot engine, as it may crack cylinder head or block. DO NOT operate engine without coolant for even a few minutes. High-Pressure Fluids John Deere TY15161 Cooling System Sealer may be added to the radiator to stop leaks. DO NOT use any other stop-leak additives in the cooling system. Air must be expelled from cooling system when coolant is added.
Coolant level should be maintained to the bottom of the radiator filler neck (A). If needed, as coolant as follows. 1. Loosen temperature sending unit fitting at rear of cylinder head or plug in side of thermostat housing to allow air to escape when filling system. RG13295 –UN–20NOV03 IMPORTANT: When adding coolant to the system, use the appropriate coolant solution. ( See ENGINE COOLANT SPECIFICATIONS in Fuels, Lubricants, and Coolant Section for mixing of coolant ingredients before adding to cooling system.) Radiator and Coolant A—Radiator Filler Neck B—Radiator Do not overfill cooling system. A pressurized system needs space for heat expansion without overflowing at top of radiator. 2.
Fill radiator (B) until coolant level touches bottom of radiator filler neck (A). Continued on next page OURGP11,0000222 –19–15OCT03–1/2 40-3 021604 PN=176