4.6.2Cooling System Inspection

To prevent generator shutdown or damage because of overheating:

DKeep the cooling air inlets clean and unobstructed

DInspect the radiator’s exterior for obstructions and remove dirt and foreign material with a soft brush or cloth to avoid damaging the radiator fins.

D Check the hoses and connections for leaks and replace any cracked, frayed, or spongy hoses.

DCheck the condition and tension of the drive belt.

DCheck the rubber seal of the radiator’s pressure cap and replace a cracked or deteriorated cap. Remove dirt and other debris from the pressure cap and filler neck. The pressure cap raises the boiling point of the coolant, enabling higher operating temperatures. If the cap leaks, replace it with the same rating type of cap. Find the pressure cap rating in Figure 4-5.

Item

Rating

 

 

Pressure cap

97 kPa (14 psi)

Figure 4-5Pressure Cap Rating

4.6.3Draining Cooling System

The radiator contains a coolant drain valve to drain the cooling system. When draining the coolant, remove the radiator’s pressure cap, which will allow the entire system to drain and will prevent air pockets from forming and restricting coolant passage to the block.

1.Remove the pressure cap to allow the entire system to drain and prevent air pockets from restricting coolant flow through the engine block.

2.Open the coolant drain valve and allow the system to drain.

3.If the inside of the radiator has mineral deposits or the used coolant contains dirt or grease, go to Section 4.6.4, Flushing and Cleaning. If the cooling system does not have mineral deposits, refill the cooling system as instructed in Section 4.6.5, Filling Cooling System.

4.6.4Flushing and Cleaning

For optimum protection, drain, flush, and refill the cooling system at the interval listed in the service schedule.

Flushing and Cleaning Procedure

1.Flush the system with clean water.

2.Drain, clean, and flush the coolant overflow bottle.

3.Refill the cooling system as instructed in Section 4.6.5.

4.6.5Filling Cooling System

 

Coolant Capacity, L (qt.)

Model

Generator Set

24RCL and

12.4 (13.1)

30RCLH

 

Figure 4-6Coolant Capacity

Note: Do not add coolant to a hot engine. Adding coolant to a hot engine can cause the cylinder block or cylinder head to crack. Wait until engine has cooled.

1.Close the radiator’s coolant drain valve and tighten the hose clamps.

2.Fill the radiator with the recommended coolant mixture of 50% ethylene glycol and 50% clean, softened water to inhibit rust/corrosion and prevent freezing. The coolant capacity is shown in Figure 4-6.

3.Operate the engine with the radiator cap removed until the thermostat opens and the upper radiator hose becomes hot.

4.Stop the engine and allow it to cool.

5.Add coolant to the radiator to just below the overflow tube on the filler neck. See Section 1, Service Views, for the overflow tube location.

6.Replace the radiator’s pressure cap.

7.Maintain the coolant level in the coolant overflow bottle between the Hot and Cold markings. See Section 1, Service Views, for the coolant overflow bottle location.

56 Section 4 Scheduled Maintenance

TP-6905 6/14

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Kohler 24RCL manual Cooling System Inspection, Draining Cooling System, Flushing and Cleaning, Filling Cooling System

24RCL specifications

The Kohler 24RCL is a powerful, compact generator designed to provide reliable backup power for residential applications. Equipped with a robust 24 kW output, this generator is engineered for both efficiency and durability, making it an excellent choice for homeowners looking to safeguard their property against outages.

One of the standout features of the Kohler 24RCL is its quiet operation. With a noise level significantly lower than that of traditional generators, it allows homeowners to maintain their comfort without the disruptive sounds often associated with backup power systems. This is particularly important in residential neighborhoods where maintaining peace and quiet is essential.

The generator is powered by a liquid-cooled Kohler engine, which ensures consistent performance and longevity. Liquid-cooled engines are known for their ability to provide better thermal management, thereby extending the life of the engine while also improving efficiency. Moreover, the Kohler 24RCL utilizes a proven design that enables quick starts and reliable operation, even in the most challenging conditions.

Another key technology in the 24RCL is its integrated transfer switch, which automatically detects power outages and switches the home’s electrical supply to the generator. This seamless transition ensures that there is no disruption in power, making it an ideal solution for critical loads such as refrigerators, medical equipment, and security systems. The generator’s advanced control system allows for easy monitoring and maintenance, providing users with peace of mind whenever they rely on their backup power.

The Kohler 24RCL boasts a weather-resistant enclosure, designed to withstand the elements and provide protection against rain, snow, and harsh winds. This rugged construction also contributes to the longevity of the unit, ensuring that it can perform reliably year after year.

Sustainability is another driving factor in the design of the Kohler 24RCL. The generator features efficient fuel consumption, which not only helps to reduce operating costs but also minimizes the environmental impact. With many homeowners increasingly focused on eco-friendly solutions, the 24RCL fits seamlessly into a sustainable lifestyle.

Overall, the Kohler 24RCL is a powerful, efficient, and quiet backup generator that combines advanced technology with rugged reliability. Its features make it a standout choice for homeowners seeking a dependable power solution that prioritizes convenience, safety, and sustainability. Whether facing severe weather or unexpected outages, the Kohler 24RCL ensures that homes remain powered and protected.