4.3 Lubrication System

4.3.1Oil Specifications

Use oil that displays the American Petroleum Institute (API) Starburst certification mark FOR GASOLINE ENGINES on the container. Do not use straight-weight oils recommended for industrial or stationary engines.

CCor CD classification oils, even when labeled Heavy Duty or For Natural Gas Engines are not acceptable.

Multi-viscosity oils are recommended. Figure 4-1 shows the recommended Society of Automotive Engineers (SAE) viscosity designation for a given operating temperature.

Ambient Temperature

Engine Oil Type

 

 

--18_C (0_F) and above

SAE 10W-30

 

 

Below --18_C (0_F)

SAE 5W-30

 

 

Figure 4-1Engine Oil Selection

4.3.2Oil Check

Check the oil level in the crankcase every 24 hours of operation or before the engine is started each day. Do not check the oil level while operating the unit. Stop the generator set and keep the generator set level to get an accurate reading. To check the oil level, remove the dipstick and wipe the end clean. Reinsert the dipstick and wait at least 30 seconds. Remove the dipstick and check the level. Maintain the oil level between the Full and Add marks on the dipstick, as shown in Figure 4-2. See Section 1, Service Views for the dipstick location.

Note: Do not operate the set if the oil level is below the Add mark or above the Full mark on the dipstick.

 

 

 

1

1.

Full mark

2

TP-5586-3

 

2.

Add mark

 

 

Figure 4-2Oil Level Check

4.3.3Oil Additions

Adding some oil between oil changes is normal. The amount varies with generator set usage. Open the oil fill cap and pour in a small amount of oil using a funnel or other suitable pouring device. See Section 1, Service Views, for the oil check and oil fill locations.

4.3.4Oil and Filter Change

Change the oil according to the service schedule or before generator set storage. Change the oil more frequently if the generator set operates under dirty, dusty conditions. Change the oil while the engine is still warm. See Section 1, Service Views, for oil fill, oil check, and oil filter locations.

Dispose of all waste materials (engine oil, fuel, filter, etc.) in an environmentally safe manner.

Note: Reset the maintenance timer on the RDC2 controller after changing the oil.

Oil Change Procedure

Whenever possible, drain the oil while it is still warm.

1.Drain the oil.

a.Press the OFF button on the RDC2 generator set controller.

b.Disconnect the power for the battery charger.

c.Disconnect the generator set engine starting battery, negative (--) lead first.

d.Remove the housing side panel.

e.Remove the plug from the oil drain fitting and install a drain hose.

f.Open the oil drain valve on the engine.

g.Allow time for the engine oil to drain completely.

h.Close the oil drain valve.

i.Replace the oil drain plug.

2.Replace the oil filter.

a.Remove the oil filter by rotating it counterclockwise with an oil filter wrench.

b.Clean the contact surface of the oil filter adapter.

c.Apply a light coat of clean oil to the rubber seal of the new oil filter.

TP-6810 11/13

Section 4 Scheduled Maintenance 49

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Kohler 48RCL, 38RCL, 60RCL manual Lubrication System, Oil Specifications, Oil Check, Oil Additions, Oil and Filter Change
Page 48 Page 50

38RCL, 48RCL, 60RCL specifications

The Kohler RCL series of generators, particularly the 60RCL, 48RCL, and 38RCL models, represents a premium choice for those seeking reliable power solutions for residential and light commercial applications. Each model is tailored to meet diverse power needs, ensuring uninterrupted electricity supply during outages.

The 60RCL is engineered for maximum performance, offering 60 kW of power. This model is ideal for larger homes or small businesses that require dependable backup power. Its powerful Kohler engine is designed to deliver a quiet, smooth performance, while the advanced sound-dampening features keep noise levels to a minimum. The 48RCL offers a slightly lower output at 48 kW, making it suitable for medium-sized homes. Its compact design allows for flexible installation options, whether it’s outdoors or in a utility area, while still providing robust power during critical times.

The 38RCL, while the smallest of the series with 38 kW output, is perfect for homes that need a reliable backup generator without the bulk. Its streamlined design does not compromise on performance, making it an excellent choice for energy-efficient homes. All models in the RCL series come equipped with Kohler's Command Pro commercial-grade engine, ensuring longevity and reliability even in the harshest conditions.

A standout feature of the RCL series is the integrated KOHLER® 2.4-inch color display, which allows users to monitor generator performance in real-time. This user-friendly interface provides vital information such as operational status, run time, and maintenance notifications. Additionally, the series is designed with automatic transfer switches that allow for seamless switching between utility and generator power.

Moreover, these generators incorporate advanced control systems with remote monitoring capabilities, enabling users to check the status of their power supply from a smartphone or tablet. Designed with efficiency in mind, the RCL series boasts a fuel-efficient operation that supports both natural gas and propane, catering to diverse energy preferences.

In summary, the Kohler 60RCL, 48RCL, and 38RCL generators combine high performance, advanced technology, and user-friendly features. They are reliable solutions for anyone looking to safeguard their power needs, ensuring peace of mind when it matters most.
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