Generac 04673-2, 04675-3, 04674-2 Voltage Regulator Adjustment, ‹ 2.7.2 12 KW and 15 KW Units

Page 15

Section 2 — Post Installation Start-up and Adjustments

Air-cooled 7 kW, 12 kW and 15 kW Generators

6.When frequency is correct at no load, check the AC voltage reading. If voltage is incorrect, the volt- age regulator may require adjustment.

Figure 2.3 — Single Cylinder Engine Governor

Adjustment

SECONDARY

ADJUST SCREW

GOVERNOR

SHAFT

GOVERNOR

PRIMARY

CLAMP

ADJUST

BOLT

SCREW

 

7.Restart the unit.

8.Slowly turn the idle adjust screw to adjust the no- load idle frequency to 63-63.5 Hz.

9.The governor is now set.

Figure 2.5 — V-twin Full Load Speed Adjust

Screw

Full Load Speed Adjust Screw

‹2.7.2 12 KW AND 15 KW UNITS

1. Loosen governor clamp bolt (See Figure 2.4).

Figure 2.4 — V-twin Engine Governor

Adjustment

Idle Spring

Governor

Shaft

(Rotate

Clockwise)

Governor Clamp Bolt

No Load Idle

Adjustment Screw

 

2.Completely remove the idle spring.

3.With governor arm at wide open throttle position, rotate governor shaft fully clockwise. Tighten clamp bolt to 84 inch-pounds.

4.Start unit and apply full load. Use full load speed adjust screw (Figure 2.5) to adjust frequency to 58 Hz.

5.Remove load, stop engine, loosen the idle adjust screw and reconnect the idle spring.

6.Using a hand, push the governor arm to the closed throttle position. Make sure the idle spring does not stretch at all.

‹2.7.3 ADDITIONAL CORROSION PROTECTION

Periodically spray all engine linkage parts and brack- ets with corrosion inhibiting spray such as WD-40 or a comparable product.

2.8VOLTAGE REGULATOR

ADJUSTMENT

With the frequency between 62-63.5 Hertz, slowly turn the slotted potentiometer (Figure 2.6) until line voltage reads 244-252 volts.

NOTE:

Remove the access panel on top of the control panel to adjust the voltage regulator.

Figure 2.6 – Voltage Adjustment Potentiometer

13

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Contents Installation Authorized Dealer Location IntroductionIntroduction Inside Front Cover Post Installation Start-up AdjustmentsMaintenance TroubleshootingGeneral Hazards ‹ Standards Index Fire HazardsUNPACKING/INSPECTION Protection SystemsSystem SET LED Gfci GeneratorSpecifications ‹ 1.5.1 Generator‹ 1.5.2 Engine ‹ 1.8.1 7 KW, 410CC Reconfiguring the Fuel SystemFuel Requirements Recommendations Fuel Consumption2.1 7 kW, 12 kW and 15 kW Units ‹ 1.9.2 Transfer SwitchLocation ‹ 1.9.1 GeneratorBattery Battery InstallationCheck Transfer Switch Operation Before Initial START-UPElectrical Checks Checking Automatic Operation Generator Tests Under LoadAdjusting the Regulator Natural GAS only Engine Governor Adjustment‹ 2.7.1 7 KW Units ‹ 2.7.2 12 KW and 15 KW Units Voltage Regulator Adjustment‹ 3.2.1 Auto Position BREAK-IN ProcedureAutomatic Transfer Operation Sequence of Automatic OperationManual Transfer Operation ‹ 3.5.2 Transfer Back to Utility Power Source‹ 3.7.3 Overcrank Setting the Exercise Timer‹ 3.7.1 LOW OIL Pressure Switch ‹ 3.7.2 High Temperature SwitchChecking the Engine OIL Level Approximate Crank Cycle Times‹ 3.7.4 Overspeed ‹ 4.3.1 Engine OIL Recommendations ‹ 4.3.2 OIL Change ProcedureChanging the Engine OIL Changing the OIL FilterSpark Plugs Battery MaintenanceCooling System Adjusting Valve ClearanceCorrosion Protection OUT of Service Procedure‹ 4.12.1 Removal from Service ‹ 4.12.2 Return to ServiceSYSTEM/COMPONENT Procedure Frequency Service ScheduleProblem Cause Correction Troubleshooting GuideElectrical Data Customer Battery Utility Battery Charger Utility Connection BCR RED Exploded Views and Parts Lists Part NO. QTY Description Exploded Views and Parts Lists Part NO. QTY. Description 16B Sleeve 122 124 125 138 139 136135 KNOB, AIR Cleaner 45 30 1016 1519 QTY Exploded Views and Parts Lists QTY Description Exploded Views and Parts Lists PIN, Piston D20 Exploded Views and Parts Lists SCREW, Taptite M6-1.0X8 Yellow Chrome 7KW CASTING, Twin Regulator Housing Mounting Dimensions Air-cooled 7 kW, 12 kW and 15 kW Generators Your Warranty Rights and Obligations MANUFACTURER’S Emission Control System Warranty CoveragePURCHASER’S/OWNER’S Warranty Responsibilities Emission Related Parts Include the Following Emission Control System WarrantyWarranty Schedule Errata Sheet PRE Packaged Units only ASSEMBLY, Enclosure Base
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04674-2, 04675-3, 04673-2 specifications

Generac, a prominent name in the power equipment sector, offers a range of reliable and efficient energy solutions, including the models Generac 04673-2, 04675-3, and 04674-2. These models are designed to meet diverse consumer needs, from residential applications to larger commercial setups, providing dependable backup power during outages.

The Generac 04673-2 is a standout home standby generator specifically engineered for residential use. It boasts an automatic operation feature, ensuring that power is restored within seconds of an outage. This model operates on a robust Generac engine, delivering a reliable power output that can support essential household appliances and systems, including HVAC units, refrigerators, and sump pumps. One of the main characteristics of this generator is its Quiet Test mode, which runs at a lower RPM to minimize noise while conducting weekly self-tests, ensuring that the system is always ready when needed.

Moving on to the Generac 04675-3, this model offers enhanced features tailored for users needing higher power output. With a larger capacity, it can handle more demanding power needs, making it suitable for larger homes or small businesses. The 04675-3 is equipped with advanced technologies, including the Mobile Link™ remote monitoring system, which enables users to check the status and performance of their generator from anywhere using a smartphone or computer. This connectivity empowers users with real-time information and alerts regarding their generator's operational performance.

The Generac 04674-2 model rounds out the trio, engineered for those who need a powerful standby generator with a slightly different configuration. It features the same robust engine as the other models, ensuring reliability and user-friendly operation. Its standout feature is the integrated transfer switch capability, which allows for seamless transfer of power from the grid to the generator without manual intervention. This model also supports various fuel types, providing flexibility depending on user preference and availability.

All three Generac models focus on safety and efficiency, incorporating features such as excellent ventilation systems, all-weather enclosures, and user-friendly control panels. They are designed for low maintenance, ensuring long-lasting performance without extensive upkeep. With Generac's commitment to innovation and quality, these generators offer peace of mind, enabling users to maintain their lifestyles and operations without interruption during power outages. Whether for home or business use, the Generac 04673-2, 04675-3, and 04674-2 models represent a reliable choice in emergency power solutions.
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