Procedure To Drain The Cooling System; Procedure To Flush And Clean The Cooling System - Kohler 7.5EOR Service

5.2.3 Procedure to Drain the Cooling
System
For optimum protection, drain, flush, and refill the
cooling system at the intervals listed in the service
schedule.
Note: Dispose of all waste materials (oil, fuel, coolant,
filters, and gaskets) in an environmentally safe
manner.
1. Deenergize the block heater, if equipped.
2. Remove the pressure cap to allow the entire
system to drain and prevent air pockets from
restricting coolant flow through the engine block.
3. Open the radiator and/or engine block coolant
drain valve(s) and allow the system to drain.
4. If the inside of the radiator has mineral deposits or
the used coolant contains dirt or grease, refer to
Section 5.2.4, Procedure to Flush and Clean the
Cooling System. If the cooling system does not
have mineral deposits, go to Section 5.2.5,
Procedure to Refill the Cooling System.
28 Section 5 Cooling System
5.2.4 Procedure to Flush and Clean the
Cooling System
Use the instructions in the engine operation manual
when available to flush and clean the cooling system.
Otherwise, use the following procedure and the cooling
system cleaner manufacturer's instructions.
1. Flush the cooling system with clean water.
2. If the inside of the radiator still has mineral
deposits, use a radiator cleaner to remove the
remaining deposits following the manufacturer's
instructions.
3. Drain, clean, and flush the coolant recovery tank.
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TP-6073 4/06