OMRG25204 oem uncert & tier 1.pdf - John Deere Industrial Engines

Lubrication & Maintenance/500 Hour/12 MonthChecking Cooling SystemCAUTION: Explosive release of fluids frompressurized cooling system can cause seriousburns.Shut off engine. Only remove filler cap whencool enough to touch with bare hands. Slowlyloosen cap to first stop to relieve pressurebefore removing completely.IMPORTANT: Air must be expelled from coolingsystem when system is refilled. Loosentemperature sending unit fitting at rearof cylinder head or plug in thermostathousing to allow air to escape whenfilling system. Retighten fitting or plugwhen all the air has been expelled.High-Pressure FluidsTS281 –UN–23AUG881. Visually check entire cooling system for leaks. Tightenall clamps securely.2. Thoroughly inspect all cooling system hoses for hard,flimsy, or cracked condition. Replace hoses if any ofthe above conditions are found.RG,RG34710,5580–19–20MAY96–1/135-10 110306PN=90