SEBU9064 41 Refill Capacities Fluid Recommendations In order to maintain the correct balance between the antifreeze and the additives, you must maintain the recommended concentration of ELC. Lowering the proportion of antifreeze lowers the proportion of additive. This action will lower the ability of the coolant to protect the system from pitting, from cavitation, from erosion, and from deposits. 3. Flush the system with clean water in order to remove any debris. 4. Use Perkins cleaner to clean the system. Follow the instruction on the label. 5. Drain the cleaner into a suitable container. Flush the cooling system with clean water.
NOTICE Do not use a conventional coolant to top-off a cooling system that is filled with Extended Life Coolant (ELC). 6. Fill the cooling system with clean water and operate the engine until the engine is warmed to 49° to 66°C (120° to 150°F). Do not use standard supplemental coolant additive (SCA). When using Perkins ELC, do not use standard SCA's or SCA filters. NOTICE Incorrect or incomplete flushing of the cooling system can result in damage to copper and other metal components. ELC Cooling System Cleaning To avoid damage to the cooling system, make sure to completely flush the cooling system with clear water.
Continue to flush the system until all the signs of the cleaning agent are gone. Note: If the cooling system is already using ELC, cleaning agents are not required to be used 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. 7. Drain the cooling system into a suitable container and flush the cooling system with clean water. Clean water is the only cleaning agent that is required when ELC is drained from the cooling system. Note: The cooling system cleaner must be thoroughly flushed from the cooling system.
Cooling system cleaner that is left in the system will contaminate the coolant. The cleaner may also corrode the cooling system. 8. Repeat Steps 6 and repeat steps 7 until the system is completely clean. Before the cooling system is filled, the heater control (if equipped) must be set to the HOT position. Refer to the OEM in order to set the heater control. After the cooling system is drained and the cooling system is refilled, 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 specified level. 9. Fill the cooling system with the Perkins Premixed ELC.
Changing to Perkins ELC ELC Cooling System Contamination To change from heavy-duty antifreeze to the Perkins ELC, perform the following steps: NOTICE Mixing ELC with other products reduces the effective- ness of the ELC and shortens the ELC service life. Use only Perkins Products for premixed or concen- trate coolants. Failure to follow these recommenda- tions can result in shortened cooling system component life. NOTICE Care must be taken to ensure that all fluids are con- tained during performance of inspection, mainte- nance, testing, adjusting and the repair of the product.
Be prepared to collect the fluid with suitable containers before opening any compartment or disas- sembling any component containing fluids. ELC cooling systems can withstand contamination to a maximum of 10 percent of conventional heavy-duty antifreeze or SCA. If the contamination exceeds 10 percent of the total system capacity, perform ONE of the following procedures: Dispose of all fluids according to local regulations and mandates. 1. Drain the coolant into a suitable container. 2. Dispose of the coolant according to local regulations.