Generac Power Systems 004373-6, 004626-5 owner manual Preparation Before START-UP

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Section 2 — Installation

Guardian Liquid-cooled 40 kW Generator

2.8 PREPARATION BEFORE START-UP

‹ 2.8.5 BELT TENSION

The instructions in this section assume that the standby generator has been properly installed, serviced, tested, adjusted and otherwise prepared for use by a competent, qualified installation contractor. Be sure to read the “Safety Rules” on Pages 2 and 3, as well as all other safe- ty information in this manual, before attempting to oper- ate this (and related) equipment.

Check the engine fan belt tension and condition prior to placing the unit into service and at recommended intervals. Belt tension is correct when a force of approx- imately 22 pounds (10 kg), applied midway between pulleys, deflects the belt about 3/8- to 5/8-inch (10 to 16 mm).

‹2.8.1 PRIOR TO INITIAL START-UP

Prior to initially starting the generator, it must be

!properly prepared for use. Any attempt to crank or start the engine before it has been properly serviced with the recommended types and quanti- ties of engine fluids (oil, coolant, fuel, etc.) may result in an engine failure.

Before starting the generator for the first time, the installer must complete the following procedures. For follow-up maintenance information and/or service inter- vals, please refer to Section 4, “Maintenance.”

‹2.8.2 FUEL SYSTEM

Make sure the fuel supply system to the generator (a) delivers the correct fuel at the correct pressure and (b) is properly purged and leak tested according to code. No fuel leakage is permitted. See Section 1.8, “Specifications”, for more information.

‹2.8.6 ELECTRICAL SYSTEM

Make sure the generator is properly connected to an approved earth ground and/or ground rod.

Make sure the generator battery is fully charged, proper- ly installed and interconnected, and ready for use.

Check to ensure that there are no loose electrical con- nections. Restrain any loose wires to keep them clear of any moving generator set components.

‹2.8.7 RODENT PROTECTION

Make sure the four 3-inch diameter cap plugs (part # 0A8785) are properly installed in the tie-down holes in the side rails of the unit’s base frame (Figure 2.3). The cap plugs are shipped in a plastic bag located in the lower connection box. These plugs are needed to pre- vent rodents from accessing the interior of the genera- tor set. On acoustic units, cap plugs also are needed to stay within noise specification limits.

Figure 2.3 - Base Frame Cap Plugs

‹2.8.3 GENERATOR SET LUBRICATION

Check the engine crankcase oil level before operating and add oil to the proper level – the dipstick “FULL” mark. Never operate the engine with the oil level below the dipstick “ADD” mark. See Section 1.8, “Specifications” and Section 1.10, “Engine Oil Recommendations”.

NOTE:

This engine is shipped from the manufacturer with SAE 15W-40 oil. This oil should be changed after 30 hours of operation.

‹2.8.4 ENGINE COOLANT

Have the engine cooling system properly filled with the recommended coolant mixture. Check the system for leaks and other problems. See Section 1.8, “Specifications” and Section 1.11, “Coolant”.

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Contents Liquid-cooled, Prepackaged Standby Generators Models Authorized Dealer Location IntroductionInstallation Diagram General Hazards Electrical Hazards UNPACKING/INSPECTION Prepackaged Transfer SwitchGenerator Generator AC Connection SystemsMain Circuit Breaker SpecificationsEngine Protective Devices ‹ 1.8.2 Generator and Load Compatibility Fuel Requirements Recommendations‹ 1.9.1 Conversion to LP GAS Vapor Coolant Emissions Control System‹ 1.12.1 AIR Fuel Ratio Controller Basic Standby Electric System Standby Generator InstallationNfpa Standards Other Published Standards‹ 2.6.1 PRE-PACKAGED Type Switch Transfer Switch Start Signal ConnectionsMethod Grounding the Generator‹ 2.7.1 Vented Batteries Battery InstallationPreparation Before START-UP Using the AUTO/OFF/MANUAL Switch Engine Heater Sequence of Automatic Operation‹ 3.2.3 Manual Position Checking the Engine OIL Level Weekly Exercise Cycle‹ 4.2.2 OIL and Filter Change Procedure Changing the Engine AIR CleanerChanging the Engine OIL and Filter ‹ 4.2.1 Engine OIL Recommendations‹ 4.5.1 Battery Replacement Battery MaintenanceSpark Plugs Cooling SystemOverload Protection for Miscellaneous MaintenanceDC Fuse Engine Coolant‹ 4.11.1 Removal from Service OUT of Service Procedure‹ 4.11.2 Return to Service SYSTEM/COMPONENT Procedure Frequency Service ScheduleProblem Cause Correction Troubleshooting GuideInstallation Diagram TS1 Generator D4992-A Guardian Liquid- Panel 4.3L Drawing No Section Wiring Diagram Control Panel Model No Drawing No KW Generators No D6975 EC1 ACT 12 19 11 3529 QTY Description ONE Assembly M6 Hinge Panel Face Panel BTM & Back Control Exploded Views and Parts Lists CHASSIS, Universal Exploded Views and Parts Lists QTY To Engine Flywheel Washer Lock M12 Exploded Views and Parts Lists Engine 4.3L GM Exploded Views and Parts Lists Mount Engine R & L KIT Radiator Copper Brass DIA. Clamp Assembly 2 Compartment To Engine Front NUT Wing 1/4-20 Nylk To Stepper Motor To Valve Cover To Intake Manifold Support Solenoid NAT GAS Attach to FAN Scroll Elbow 90D 3/4NPT Exploded Views and Parts Lists Muffler Catalyst 4.3L Assembly Motor Stepper To Thermostat Housing Guardian Liquid-cooled 40 kW Generators Guardian Liquid-cooled 40 kW Generators MANUFACTURER’S Emission Control System Warranty Coverage Your Warranty Rights and ObligationsPURCHASER’S/OWNER’S Warranty Responsibilities Emission Related Parts Include the Following Emission Control System WarrantyWarranty Schedule

004373-6, 004626-5 specifications

Generac Power Systems has established itself as a leader in the field of backup and portable power solutions, and their models 004626-5 and 004373-6 are prime examples of their dedication to innovation and reliability. These models are designed to cater to a variety of power needs, making them essential assets for homeowners and businesses alike.

The 004626-5 is a robust home standby generator, renowned for its powerful performance and automatic transfer switch capabilities. This model features Generac's G-Force engine, which is specifically engineered for high performance and longevity, ensuring that it can handle the demands of powering a home during outages. It boasts a multi-language LCD display that provides real-time system status updates, allowing users to monitor performance with ease. Additionally, the 004626-5 is equipped with an integrated wi-fi system, enabling remote monitoring through the Mobile Link app. This feature gives users the convenience of checking their generator's status from anywhere, ensuring peace of mind.

On the other hand, the 004373-6 is a portable generator designed for versatility and convenience. This model is lightweight and easily transportable, making it ideal for outdoor activities, job sites, or emergency power supply during outages. Powered by a reliable OHV engine, the 004373-6 delivers impressive power output while maintaining fuel efficiency. Its ergonomic design includes a transport handle and never-flat wheels, allowing for easy maneuverability. The model also features Generac’s PowerRush technology, which provides over 50% more starting capacity, making it capable of handling larger appliances with ease.

Both models are designed with safety features in mind. The 004626-5 comes with a durable weather-resistant enclosure, protecting it from the elements, while the 004373-6 includes a low-oil shutdown feature to prevent engine damage.

In summary, Generac Power Systems continues to set the benchmark for reliability and innovation in power solutions with models 004626-5 and 004373-6. With their advanced technologies, user-friendly features, and unparalleled performance, these generators are engineered to provide power when it’s needed most, ensuring a seamless transition during outages and enhancing convenience for users across various settings.
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