Generac 004451 ,004582, 004451, 004582 Automatic Idle Control, Cold Weather OPERATION/ DE-ICER

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Section 2 — Operation

Commercial-Industrial-Residential Portable Generator System

• Move engine CHOKE knob to “Full Choke” position.

2.9 AUTOMATIC IDLE CONTROL

17 - Full Choke Position

•To start engine, press and hold the Start/Run/Stop switch in the “Start” position. The engine will crank and attempt to start. When the engine starts, release the switch to the run position.

•When the engine starts, move choke knob to “1/2 Choke” position until the engine runs smoothly and then to“Run”position.If engine falters, move choke knob to “1/2 Choke”position until the engine runs smoothly and then to “Run” position.

Note: If engine fires, but does not continue to run, move choke lever to “Full Choke” and repeat starting instructions.

This feature is designed to greatly improve fuel economy. When this switch is turned “On,” the engine will only run at its normal fast governed engine speed when electrical load is connected. When the load is removed, the engine will run at a reduced speed. With the switch “Off,” the engine runs at the normal fast engine speed all the time.

Always have the switch OFF when starting and stopping the engine.

2.10COLD WEATHER OPERATION/ DE-ICER

Under certain weather conditions (temperatures below 40° F (4° C) and a high dew point), the engine may experience icing of the carburetor and/or the crankcase breather system. To eliminate this problem, this generator engine is fitted with a winter/summer valve. this directs hot air into the carburetor during cold weather operation. Always make sure the winter/summer valve is in the correct location relative to the weather conditions.

2.11LOW OIL PRESSURE SHUTDOWN SYSTEM

The engine is equipped with a low oil pressure sensor that shuts down the engine automatically when the oil pressure drops below 10 psi. If the engine shuts down by itself and the fuel tank has enough gasoline, check engine oil level.

2.8 STOPPING THE ENGINE

•Shut off all loads, then unplug the electrical loads from generator panel receptacles. Never start or stop the engine with electrical devices plugged in and turned on.

•Turn “Off” the Idle Control switch (if on).

•Let engine run at no-load for several minutes to stabilize the internal temperatures of engine and generator.

•Move Start/Run/Stop switch to “Off” position.

•Close fuel valve.

IMPORTANT: Do not overload the generator. Also, do not overload individual panel receptacles. These outlets are protected against overload with push-to-reset-type circuit breakers. If amperage rating of any circuit breaker is exceeded, that breaker opens and electrical output to that receptacle is lost. Read “Don’t Overload the Generator” on page 9 carefully.

2.11.1 INITIAL START-UP

A delay built into the low oil shutdown system allows oil pressure to build during starting. The delay allows the engine to run for about 10 seconds before sensing oil pressure.

2.11.2 SENSING LOW OIL PRESSURE

If the system senses low oil pressure during operation, the engine shuts down.

2.11.3 RESTARTING

If you try to restart the engine within 10 seconds after it shuts down, the engine may NOT start. The system needs 5 to 10 seconds to reset.

If you do restart the engine after such a shutdown and have not corrected the low oil pressure, the engine runs for about 10 seconds as described above and then stops.

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Contents Ultra Source Safety Rules General Information Introduction Important Safety Instructions General HazardsFire Hazards Electrical HazardsExplosion Hazards Unpacking AssemblyAccessory BOX Assembling the Wheel KITBattery Connection Handle AssemblyWinter / Summer Valve See Cold Weather Operation Know the GeneratorVolt AC, 30 Amp Locking Receptacle Supplies 2 120V AC, 20 AMP, Gfci Receptacle Cord Sets and Connection Plugs1 AC, 20 AMP, Duplex Receptacle 120V 30A 5 12 Volt DC, 10 AMP ReceptacleDON’T Overload the Generator HOW to USE the GeneratorConnecting Electrical Loads Grounding the GeneratorAdding Engine OIL Wattage Reference GuideBefore Starting the Generator DeviceTo Start the Engine Adding GasolineLOW OIL Pressure Shutdown System Automatic Idle ControlCold Weather OPERATION/ DE-ICER Stopping the EngineCharging a Battery To recharge 12 Volt batteries, proceed as followsGenerator Specifications Maintenance ScheduleProduct Specifications Engine SpecificationsGeneral Recommendations Service AIR Cleaner Clean Spark Arrestor ScreenAdjusting Valve Clearance To adjust valve clearanceOther Storage Tips Storage GeneralLong Term Storage Troubleshooting Problem Cause SolutionCommercial-Industrial-Residential Portable Generator System Commercial-Industrial-Residential Portable Generator System Wiring Diagram Drawing No E0228 Bearing Stator ClosestSchematic Drawing No E0229 46 45 43 42 GT-990 & GT-760 Engine Page 1 Drawing No E0034QTY Description Detaila GT-990 & GT-760 Engine Page 2 Drawing No E0034Part NO. QTY Description Generator Drawing No D4488 QTY. Description Exploded Residential No E0227 Part NO. QTY. Description Control Panel Drawing No E0227Detail Frame, Handle & Wheel Kit Drawing No E0695Rubber Tank Mount California Emission Control Warranty Statement BOX 297 WHITEWATER, WIEmission Control System Warranty Warranty Schedule Part No E0226 06/01/02

004451, 004582, 004451 ,004582 specifications

Generac is a leading manufacturer of power generation equipment, known for its robust and reliable systems. Among its vast lineup, the Generac 004451 and 004582 portable generators stand out due to their impressive features, advanced technologies, and user-friendly characteristics, making them suitable for various applications such as home backup, outdoor activities, and job sites.

The Generac 004451 model boasts a powerful 2,500-watt output, making it ideal for powering essential appliances during outages or for use in recreational settings. Its compact design enhances portability, allowing users to easily transport it wherever needed. This generator features a durable frame designed to withstand rugged environments, including a fold-down handle for convenient storage. It is equipped with a reliable 50-state compliant engine, ensuring that it meets stringent environmental regulations while delivering dependable power.

On the other hand, the Generac 004582 model is designed for users needing a bit more power, featuring a 3,200-watt maximum output. Like the 004451, it emphasizes portability and ease of use, but it also incorporates a more advanced inverter technology. This innovation ensures that the generator produces clean, stable power, making it safe for sensitive electronics like smartphones, laptops, and medical devices. The 004582's lightweight construction allows for effortless transport, while its fold-down handle and never-flat wheels enhance mobility.

Both models are engineered with user-friendly controls and features such as easy-to-read fuel gauges and a low-oil shutdown system, which prevents engine damage by automatically shutting down the generator when the oil level is too low. Additionally, these generators include multiple AC outlets, offering versatility in powering various devices simultaneously.

Safety is paramount in Generac's design philosophy, as evident in the inclusion of features such as circuit breakers to prevent overloads. Additionally, they are equipped with a robust cooling system that allows for prolonged operation without overheating.

Overall, the Generac 004451 and 004582 portable generators provide a perfect blend of power, portability, and technological advancements, making them suitable for emergency backup power, outdoor events, and job site requirements. With a strong emphasis on reliability and user convenience, Generac continues to be a trusted name in the field of power generation.
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