BARREL AS-PUMP 1879116 - Caterpillar

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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Do not change the coolant until you read and understand the cooling system information in Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations".Failure to do so could result in damage to the cooling system components.
Mixing ELC with other products reduces the effectiveness of the coolant and shortens coolant life. Use only Caterpillar products or commercial products that have passed the Caterpillar EC-1 specifications for premixed or concentrate coolants. Use only Caterpillar Extender with Caterpillar ELC. Failure to follow these recommendations could result in the damage to cooling systems components.If ELC cooling system contamination occurs see the topic Extended Life Coolant (ELC) in the Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations".
Note: This procedure pertains to machines using Extended Life Coolant (ELC) only.If the coolant is dirty or if you observe any foaming in the cooling system, drain the coolant before the recommended interval.
Illustration 1 g01282961
Loosen the pressure cap slowly to relieve cooling system pressure. Remove the pressure cap.
Illustration 2 g00903421
Open the drain valve for the engine cooling system. Drain the coolant into a suitable container. The drain valve is located on the bottom radiator tube.
Flush the cooling system with clean water until the draining water is clear. Close the drain valve.
Replace the water temperature regulator.ReferenceRefer to the Operation and Maintenance Manual, "Cooling System Water Temperature Regulator - Replace" for the machine that is being serviced.
Add the coolant solution. Add coolant slowly to help avoid air locks, 20 L (5 US gal) per minute.ReferenceFor information on the cooling system capacity, refer to the Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities" for the machine that is being serviced.
Start the engine. Run the engine with the cooling system pressure cap removed. Run the engine until the water temperature regulator opens and the coolant level stabilizes.
Illustration 3 g01744354
Maintain the coolant level to within 13 mm (0.50 inch) of the bottom of the filler pipe or to the proper level in the sight gauge.
Install the cooling system pressure cap.
Stop the engine.