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When using Cat ELC, do not use conventional SCAs, or, if equipped, SCA maintenance elements. In order to avoid SCA contamination of an ELC system, remove the SCA element base and plug off or bypass the coolant lines.
Cat ELC Cooling System Cleaning
Note: If the cooling system is already using Cat ELC, cleaning agents are not required at the specified coolant change interval. Cleaning agents are only required if the system has been contaminated by the addition of some other type of coolant or by cooling system damage.Clean water is the only cleaning agent that is required when Cat ELC is drained from a properly maintained cooling system.After the cooling system is drained and then refilled, operate the engine while the cooling system filler cap is removed. Operate the engine until the coolant level reaches the normal operating temperature and until the coolant level stabilizes. As needed, add the coolant mixture in order to fill the system to the proper level.Recycling Cat ELC
Cat ELC can be recycled into conventional coolants. The drained coolant mixture can be distilled in order to remove the ethylene glycol and the water. The ethylene glycol and the water can be reused. The distilled material does not contain the additives that are required as either Cat ELC or Cat DEAC. Consult your Cat dealer for more information. Recycled coolants should meet the most current revision level of "ASTM D6210".Changing to Cat ELC
To change from heavy-duty coolant/antifreeze to the Cat ELC, perform the following steps:
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, "Caterpillar Dealer Service Tool Catalog" and to Special Publication, PECJ0003, "Cat Shop Supplies and Tools" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to applicable regulations and mandates.
Drain the coolant into a suitable container.
Dispose of the coolant according to local regulations.
If equipped, remove the empty SCA maintenance element and remove the element base. Plug the coolant lines or bypass the coolant lines.
Do not leave an empty SCA maintenance element on a system that is filled with Cat ELC.The element housing may corrode and leak causing an engine failure.Remove the SCA element base and plug off or by-pass the coolant lines.
Flush the system with clean water in order to remove any debris.
Use Cat Quick Flush Cooling System Cleaner for cooling systems in order to clean the system. Cat Quick Flush Cooling System Cleaner is available in various sizes. Part numbers are 4C-4609 ( 0.5 L (0.125 US gal)) through 4C-4613 ( 208.2 L (55 US gal)). Follow the instructions on the label using a 6-10% concentration of cleaner in water.
Drain the cleaner into a suitable container. Flush the cooling system with clean water. Note: Deposits that remain in the system may be loosened and removed by the Cat ELC.
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