1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your HELLA Automotive Alternator, model 8EL 012 584-111. This alternator is designed to provide reliable electrical power for your vehicle's systems and to recharge the battery.
Please read these instructions carefully before proceeding with installation or any related procedures. Proper installation and maintenance are crucial for the optimal performance and longevity of the unit.
2. Vehicle Compatibility
This HELLA alternator is specifically designed for use with certain Scania -4 series vehicles. It is compatible with:
- Scania 114-Serie P 114/322 (Model years: 1999-2005)
- Scania 114-Serie P 114/360 DSC 11 75 (Model years: 1998-2005)
Important: Always verify exact vehicle application and part numbers before installation to ensure correct fitment and function. Refer to your vehicle's service manual or consult a qualified mechanic for confirmation.
3. Installation Instructions
Installation of an automotive alternator requires specialized tools and knowledge. It is highly recommended that installation be performed by a qualified automotive technician to ensure safety and proper function.
Safety Precautions:
- Always disconnect the vehicle's battery (negative terminal first) before beginning any work on the electrical system.
- Wear appropriate personal protective equipment, including safety glasses and gloves.
- Ensure the vehicle is securely supported if lifted.
General Installation Steps (Consult Vehicle Service Manual for Specifics):
- Preparation: Disconnect the battery. Locate and identify the existing alternator.
- Remove Old Alternator: Disconnect all wiring from the old alternator. Loosen and remove the serpentine belt or V-belt. Unbolt and remove the old alternator from its mounting brackets.
- Inspect Components: Check the condition of the serpentine belt, tensioner, and pulleys. Replace any worn components. Note that this HELLA alternator is supplied without a belt pulley, so the existing pulley may need to be transferred or a new one installed.
- Install New Alternator: Position the new HELLA alternator (Model 8EL 012 584-111) into its mounting brackets. Secure it with the appropriate bolts, tightening to the manufacturer's specifications.
- Connect Wiring: Reconnect all electrical wiring to the new alternator. Ensure all connections are clean and secure.
- Install Belt: Reinstall the serpentine belt or V-belt, ensuring proper tension according to vehicle specifications.
- Final Checks: Reconnect the vehicle's battery (positive terminal first, then negative). Start the engine and check for proper charging system operation (e.g., battery warning light off, voltage output).
Figure 1: Rear view of the HELLA Automotive Alternator (Model 8EL 012 584-111). This image shows the electrical connection points and the regulator assembly.
Figure 2: Internal view of the HELLA Automotive Alternator. This image highlights the stator windings and the central rotor shaft, which are key components for generating electricity.
Figure 3: Side view of the HELLA Automotive Alternator. This perspective shows the overall compact design and the shaft where the pulley is mounted.
4. Operating Principles
The HELLA Automotive Alternator functions automatically once the engine is running. Its primary role is to convert mechanical energy from the engine (via the serpentine belt) into electrical energy. This electrical energy is then used to power the vehicle's electrical systems (lights, radio, climate control, etc.) and to recharge the vehicle's 12-volt battery.
A voltage regulator, integrated within or connected to the alternator, maintains a consistent output voltage, typically between 13.5 and 14.8 volts, to prevent overcharging or undercharging the battery.
5. Maintenance
HELLA alternators are designed for durability and typically require minimal maintenance. However, periodic checks can help ensure optimal performance and identify potential issues early:
- Belt Inspection: Regularly check the condition and tension of the serpentine belt. A worn, cracked, or loose belt can lead to reduced alternator output or complete failure.
- Wiring Connections: Periodically inspect all electrical connections to the alternator for corrosion or looseness. Ensure they are clean and securely fastened.
- Battery Condition: A healthy battery is essential for the charging system. Ensure your battery is in good condition and properly charged.
If any issues are observed, consult a qualified technician for diagnosis and repair.
6. Troubleshooting
If you experience problems with your vehicle's charging system, consider the following common issues:
| Symptom | Possible Cause | Action |
|---|---|---|
| Battery warning light illuminated on dashboard | Alternator not charging, faulty voltage regulator, loose or broken belt, wiring issue. | Check belt tension and condition. Inspect wiring connections. Have the charging system tested by a professional. |
| Dim headlights or interior lights | Low voltage output from alternator, weak battery. | Check battery charge. Test alternator output voltage. |
| Battery not holding charge / Dead battery | Alternator not charging, parasitic drain, faulty battery. | Test battery and charging system. Check for electrical drains. |
| Squealing noise from engine bay | Loose or worn serpentine belt, faulty alternator bearing. | Inspect and replace belt if necessary. If noise persists, professional diagnosis is required. |
For persistent issues or complex diagnostics, it is always recommended to consult a certified automotive technician.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Hella |
| Model Number | 8EL 012 584-111 |
| Manufacturer Part Number | 8EL 012 584-111 |
| OEM Part Numbers | 1 409 378; 1409378; 1 409 380; 1409380; 133 6136; 1336136; 139 4969; 1394969; 1749769; 571 498; 571498; 571416; 571438 |
| Product Dimensions | 31 x 21.5 x 21 cm |
| Item Weight | 7 kg |
| Pulleys | Without belt pulley (requires transfer of existing pulley or new installation) |
| Safety Rating | Not Applicable |
8. Warranty Information
HELLA products are manufactured to high-quality standards. This product is covered by HELLA's standard manufacturer's warranty. The specific terms and duration of the warranty may vary by region and retailer.
Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation provided with your purchase or contact your retailer or HELLA directly.
9. Customer Support
If you have any questions regarding the installation, operation, or troubleshooting of your HELLA Automotive Alternator, please contact:
- The retailer from whom you purchased the product.
- HELLA Customer Service (refer to the official HELLA website for contact details in your region).
When contacting support, please have your product model number (8EL 012 584-111) and proof of purchase readily available.
