1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Generac 0676800SRV Voltage Regulator. This component is designed to maintain a stable output voltage from compatible Generac generators operating at 60Hz. Accurate voltage regulation is crucial for the safe and efficient operation of electrical equipment connected to the generator.
2. Safety Information
Always observe the following safety precautions when working with electrical components and generators:
- Disconnect Power: Ensure the generator is completely shut down and disconnected from all power sources before attempting any installation, maintenance, or repair.
- Qualified Personnel: Installation and service should only be performed by qualified technicians familiar with generator systems and electrical safety procedures.
- Personal Protective Equipment (PPE): Wear appropriate PPE, including safety glasses and insulated gloves, when handling electrical components.
- Avoid Contact: Do not touch live electrical parts.
- Proper Tools: Use only insulated tools designed for electrical work.
- Check Compatibility: Verify that this voltage regulator is the correct part for your specific Generac generator model by consulting your generator's parts manual. Incorrect parts can lead to damage or unsafe conditions.
3. Package Contents
Upon opening the package, verify that the following item is present:
- Generac 0676800SRV Voltage Regulator 60Hz Assembly
4. Installation
Important: Always refer to your specific Generac generator's service manual for detailed, model-specific installation instructions. The following steps are general guidelines only.
- Prepare the Generator: Ensure the generator is turned off, cooled down, and the battery is disconnected to prevent accidental startup or electrical shock.
- Locate the Existing Regulator: Identify the current voltage regulator on your generator. It is typically mounted near the alternator section.
- Document Connections: Before disconnecting, carefully note or photograph the wiring connections to the existing voltage regulator. This will aid in correct reinstallation.
- Disconnect and Remove: Carefully disconnect all wiring from the old regulator and unmount it from the generator frame.
- Install New Regulator: Mount the new Generac 0676800SRV Voltage Regulator in the same location as the old one. Ensure it is securely fastened.
- Reconnect Wiring: Connect the wiring to the new regulator according to your documentation from step 3. Ensure all connections are secure and properly insulated.
- Final Checks: Double-check all connections for tightness and correct placement. Ensure no wires are pinched or exposed.
- Restore Power: Reconnect the generator battery and prepare for initial startup as per your generator's manual.
Note: Units with voltage change-over functionality may require part # 0G08580SRV. Always confirm the correct part number for your specific application.
Image 1: Front view of the Generac 0676800SRV Voltage Regulator, showing the part number and adjustment labels.
Image 2: Side view of the Generac 0676800SRV Voltage Regulator, highlighting the electrical connector for wiring.
5. Operating Instructions
The Generac 0676800SRV Voltage Regulator operates automatically to maintain a consistent output voltage from your generator. Once correctly installed, it requires no routine user intervention for its primary function.
- Automatic Voltage Regulation: The regulator continuously monitors the generator's output voltage and adjusts the excitation current to the alternator to keep the voltage within specified limits, compensating for changes in load.
- Indicator Lights: The regulator features indicator lights (Regulator, Sensing, Excitation) which provide diagnostic feedback on its operational status. Refer to your generator's service manual for the interpretation of these indicators.
- Adjustments: The regulator includes adjustment potentiometers for Voltage Adjust, Gain, Stability, and Underfrequency Adjust. These adjustments are factory-set and should only be altered by a qualified service technician using specialized equipment and following precise calibration procedures outlined in the generator's service manual. Improper adjustment can lead to unstable voltage, equipment damage, or generator malfunction.
Image 3: Front view of the Generac 0676800SRV Voltage Regulator, indicating the various adjustment points and status lights.
6. Maintenance
The Generac 0676800SRV Voltage Regulator is designed for reliable operation with minimal maintenance. However, periodic inspection is recommended as part of your overall generator maintenance schedule.
- Visual Inspection: Regularly inspect the regulator and its wiring for any signs of physical damage, corrosion, loose connections, or overheating.
- Cleanliness: Keep the regulator free from dirt, dust, and moisture. Use a soft, dry cloth for cleaning. Do not use solvents or abrasive cleaners.
- Connection Integrity: Ensure all electrical connections to the regulator remain tight and secure.
- Environmental Protection: Ensure the generator's enclosure provides adequate protection for the regulator from extreme temperatures, moisture, and vibrations.
7. Troubleshooting
If your generator experiences voltage-related issues, the voltage regulator may be a contributing factor. Common symptoms of a faulty voltage regulator include:
- Unstable or fluctuating output voltage.
- No AC output voltage.
- Over-voltage or under-voltage conditions.
- Generator shutting down due to voltage faults.
Action: If you suspect a problem with the voltage regulator, it is strongly recommended to contact a qualified Generac service technician for diagnosis and repair. Attempting to troubleshoot or repair complex electrical components without proper training and tools can be dangerous and may void your generator's warranty.
8. Specifications
| Item Model Number | 0676800SRV |
| Manufacturer | Generac |
| Item Weight | 1.45 pounds |
| Package Dimensions | 10.2 x 6.6 x 2.3 inches |
| ASIN | B008TVYH56 |
9. Warranty and Support
For warranty information regarding your Generac 0676800SRV Voltage Regulator, please refer to the documentation provided with your original generator purchase or contact Generac customer support directly. Warranty terms and conditions may vary.
For technical support, troubleshooting assistance, or to locate an authorized service center, please visit the official Generac website or contact their customer service department. Always provide your generator model number and the voltage regulator part number (0676800SRV) when seeking support.
