RETAINER 4H8906 - Caterpillar

Note: Refer to this Operation and Maintenance Manual, "Fluid Recommendations" (Cooling System) for the maintenance interval for the addition of the coolant extender.Cat ELC (Extended Life Coolant) and Cat ELI (Extended Life Inhibitor) do not require the frequent additions of any supplemental cooling additives. The Cat ELC Extender will only be added one time. Note: Do not use conventional supplemental coolant additive (SCA) with Cat ELC or with Cat ELI.Check the cooling system only when the engine is stopped and cool.
Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Cat Dealer Service Tool Catalog" or refer to Special Publication, PECJ0003, "Cat Shop Supplies and Tools Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Remove the top cooling system tank cap.
Connect field service pump hose to coolant drain valve.
Open drain valve.
Prime pump per OEM instructions.
Add Cat ELC Extender according to the requirements for the cooling system capacity. Refer to this Operation and Maintenance Manual, "Refill Capacities" for the coolant capacity.
Stop pump, close drain valve, and remove pump hoses.
Reinstall radiator cap. For further information, refer to this Operation and Maintenance Manual, "Fluid Recommendations".