Section 4 — Maintenance

Guardian Liquid-cooled 40 kW Generator

2.Inside the generator set, the chance of rodent entry into the control panel is greatly reduced by the inclusion of adjustable wire connectors. Check that the wire connector screws are tight, thus closing off any gap between the access holes and the wires.

4.11 OUT OF SERVICE PROCEDURE

‹4.11.1 REMOVAL FROM SERVICE

If the generator cannot exercise every seven days, and it is to be out of service longer than 90 days, prepare the generator for storage as follows:

1.Start the engine and let it warm up.

2.Close the fuel shutoff valve in the fuel supply line and allow the unit to shut down.

3.Once the unit has shut down, it will signal a fault on the control panel.

4.Set the Auto/Off/Manual switch to OFF and turn off the utility power to the transfer switch.

5.While the engine is still warm from running, drain the oil completely. Refill the crankcase with SAE 15W-40 oil having API Service Class SG, SH or SJ.

6.Attach a tag to the engine indicating the viscosity and classification of the oil in the crankcase.

7.Remove the spark plug(s) and spray fogging agent into the spark plug(s) threaded openings. Reinstall and tighten the spark plug(s).

8.Remove the battery and store it in a cool, dry room on a wooden board. Never store the battery on any concrete or earthen floor.

9.Clean and wipe the entire generator.

‹4.11.2 RETURN TO SERVICE

To return the unit to service after storage, proceed as follows:

1.Verify that utility power is turned off to the transfer switch and that the Auto/Off/Manual switch is set to OFF.

2.Check the tag on the engine for oil viscosity and classification. Verify that the correct recommended oil is used in engine. See Section 4.2.1 (Page 14). If necessary, drain and refill with the proper oil.

3.Check the battery. Fill all cells to the proper level with distilled water. DO NOT USE TAP WATER IN THE BATTERY. Remove the battery before charging. Recharge the battery to 100 percent state of charge, or, if defective, replace the battery with a 12-volt DC Group 27F battery rated for 90 amp hours (part # 058665).

4.Clean and wipe the entire generator.

5.Reconnect the battery. Observe battery polarity. Damage may occur if the battery is connected incor- rectly.

6.Open the fuel shutoff valve.

7.Start the unit by moving the Auto/Off/Manual switch to MANUAL. Allow the unit to warm up thoroughly.

8.Stop the unit and set the Auto/Off/Manual switch to AUTO.

9.Turn on the utility power to the transfer switch.

10.The generator is now ready for service.

18 Generac® Power Systems, Inc.

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Generac 004373-3 , 004626-2 OUT of Service Procedure, ‹ 4.11.1 Removal from Service, ‹ 4.11.2 Return to Service
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004373-3, 004626-2, 004373-3 , 004626-2 specifications

Generac is a leader in the power generation industry, known for its reliable and innovative products. Among its extensive range of offerings, two models stand out: the Generac 004373-3 and the 004626-2. These models represent the cutting edge of home standby generators.

The Generac 004373-3 is designed to provide seamless power during outages, ensuring that homes remain comfortable and functional. One of its main features is the automatic transfer switch, which detects a power outage and activates the generator within seconds. This automatic response eliminates the need for manual intervention, allowing homeowners to go about their lives without interruption.

This model is equipped with a durable engine that runs on liquid propane or natural gas, providing flexibility depending on the availability of fuel sources. The 004373-3 has an impressive power output, capable of powering essential household appliances, including refrigerators, heating systems, and lights. Its compact design allows for easy installation, making it suitable for a variety of home sizes.

On the other hand, the Generac 004626-2 also focuses on providing reliable power but with additional advanced features. One of its key characteristics is the True Power Technology, which delivers clean and stable power, making it ideal for sensitive electronics and appliances. This feature is crucial for households that rely on digital devices, protecting them from fluctuations that could potentially cause damage.

Additionally, the 004626-2 comes with a user-friendly control panel that allows for easy monitoring and adjustments. The model also incorporates Smart Management Technology, which enables users to manage their power consumption effectively. This technology allows homeowners to prioritize the most critical circuits, ensuring essential services remain operational during outages.

Both models emphasize ease of maintenance, with a design that facilitates access to components for servicing. Generac generators are known for meeting high standards of quality, ensuring reliability and longevity. With their advanced technologies and robust features, the Generac 004373-3 and 004626-2 provide peace of mind, allowing homeowners to remain connected and powered, no matter the circumstances. Whether for unexpected outages or planned maintenance, Generac continues to set the standard in home power solutions.
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