Product Overview
This manual provides instructions for the Rareelectrical 12 Volt PMDD Starter Motor, designed for reliable starting of various Onan BGE, BGEL, NHE, NHEL, NHM, and MCE RV and Marine Generator Sets. This starter motor features a 16-tooth pinion and 40.6mm OD, engineered for direct bolt-on compatibility with Onan BG and NH series air-cooled 2-cylinder generator engines. Always verify the OEM part number against your original unit to ensure proper fitment before installation.
Image 1: Front view of the Rareelectrical 12V PMDD Starter Motor. This image shows the main body of the starter motor with its electrical terminal and mounting flange.
Setup and Installation
Proper installation is crucial for the safe and effective operation of your new starter motor. If you are unsure about any step, consult a qualified technician.
Safety Precautions:
- Always disconnect the battery's negative terminal before beginning any electrical work to prevent accidental starting or electrical shock.
- Wear appropriate personal protective equipment, including safety glasses and gloves.
- Ensure the generator is turned off and cooled down before servicing.
Installation Steps:
- Locate the Old Starter: Identify the existing starter motor on your Onan generator.
- Disconnect Wiring: Carefully disconnect all electrical wiring from the old starter motor. Note the position of each wire for correct reinstallation.
- Remove Mounting Bolts: Unfasten the mounting bolts that secure the old starter motor to the engine. The design features oblong mounting holes for specific Onan series engines.
- Remove Old Starter: Carefully remove the old starter motor from its mounting position.
- Install New Starter: Position the new Rareelectrical starter motor in place, aligning the mounting holes.
- Secure Mounting Bolts: Reinstall and tighten the mounting bolts to secure the new starter motor. Ensure it is firmly seated.
- Reconnect Wiring: Reattach all electrical wiring to the new starter motor, ensuring connections are clean and tight.
- Reconnect Battery: Reconnect the battery's negative terminal.
- Test Operation: Attempt to start the generator to confirm proper function of the new starter motor.
Image 2: Side view of the Rareelectrical 12V PMDD Starter Motor, showing the main casing and mounting points.
Image 3: View of the Rareelectrical 12V PMDD Starter Motor's pinion gear, which engages with the engine's flywheel.
Operating Instructions
Once the Rareelectrical 12V PMDD Starter Motor is correctly installed, its operation is integrated with your generator's starting system.
- Prepare Generator: Ensure your generator is in a safe operating condition, with fuel, oil, and all necessary connections secure.
- Initiate Start Sequence: Follow your generator's specific starting procedure, typically involving turning a key or pressing a start button.
- Starter Engagement: The starter motor will engage the engine's flywheel, rotating it to initiate combustion. Release the key/button once the engine starts.
Note: Do not continuously crank the starter for extended periods (more than 10-15 seconds) to prevent overheating. Allow a brief cool-down period between starting attempts.
Maintenance
Regular, simple maintenance can extend the life of your starter motor and ensure reliable performance.
- Inspect Connections: Periodically check all electrical connections to the starter motor for tightness and corrosion. Clean any corroded terminals with a wire brush.
- Battery Health: Ensure your generator's battery is fully charged and in good condition. A weak battery can strain the starter motor.
- Visual Inspection: Occasionally inspect the starter motor for any visible damage, loose components, or excessive dirt and debris. Keep the area around the starter clean.
- Avoid Over-Cranking: As mentioned in operating instructions, avoid prolonged cranking to prevent premature wear and overheating.
Troubleshooting
If your generator fails to start or the starter motor exhibits unusual behavior, consider the following common issues:
| Symptom | Possible Cause | Solution |
|---|---|---|
| Starter does not crank or clicks once | Dead or weak battery, loose/corroded battery cables, faulty starter solenoid, faulty ignition switch | Check battery charge and terminals. Inspect and clean cable connections. Test solenoid and ignition switch. |
| Starter cranks slowly | Low battery charge, heavy engine oil, internal starter motor issue | Charge or replace battery. Ensure correct oil viscosity. If problem persists, starter motor may need inspection. |
| Grinding or whirring noise during start attempt | Damaged starter pinion gear or flywheel teeth, improper starter engagement | Inspect starter pinion and engine flywheel for damage. Ensure starter is correctly mounted. |
| Starter motor runs but engine does not crank | Bendix drive (overrunning clutch) failure, broken flywheel teeth | Inspect the Bendix drive and flywheel. Replacement of the starter or flywheel may be necessary. |
If troubleshooting steps do not resolve the issue, it is recommended to consult a professional mechanic or generator service technician.
Specifications
| Feature | Detail |
|---|---|
| Brand | Rareelectrical |
| Model Number | 5706*3 |
| Part Number | 5706*3 |
| Voltage | 12 Volts |
| Wattage | 3 KW |
| Rotation | CCW (Counter-Clockwise) |
| Pinion Teeth | 16-tooth |
| Item Dimensions (L x W x H) | 10 x 6 x 6 inches |
| Included Components | Starter |
| Manufacturer | RAREELECTRICAL |
Warranty Information
This Rareelectrical starter motor comes with a 1-Year Warranty from the Date of Purchase. This warranty covers defects in materials and workmanship under normal use. For warranty claims or further details, please contact Rareelectrical customer support.
Customer Support
For technical assistance, troubleshooting guidance, or inquiries regarding your Rareelectrical 12V PMDD Starter Motor, please contact Rareelectrical customer support. When contacting support, please have your product model number (5706*3) and date of purchase available.
You can find contact information for Rareelectrical through their official website or the retailer where the product was purchased.
Rareelectrical Brand Overview
Video 1: A general brand overview from Rareelectrical. This video highlights the company's commitment to quality electrical parts for various applications, including automotive, marine, and industrial equipment.