1. Introduction
The Roco 70788 NS 2400 Diesel Locomotive is a detailed model of the Dutch State Railways' Class 2400 locomotive. Introduced in 1954, these locomotives primarily transported freight trains and were used for shunting, in addition to some passenger services. This model features a brown livery and includes original Dutch lighting functions such as blue flashing lights and taillights. In digital mode, switchable shunting lights and individually switchable headlights or taillights are available.
Important Note: This item is NOT a toy and is intended for modeling purposes only.

A detailed side view of the Roco 70788 NS 2400 Diesel Locomotive, showcasing its brown livery, blue flashing lights on the roof, and the NS logo on the side. The model features intricate details including handrails and bogies.
2. Safety Information
Please read all safety instructions before operating the model.
- Not recommended for children under 3 years due to small parts that can be detached and swallowed.
- This model contains small, delicate parts. Handle with care to avoid damage or injury.
- Ensure the model is operated on a stable surface to prevent accidental falls.
3. Setup
- Unpacking: Carefully remove the locomotive from its packaging. Retain the packaging for future storage or transport.
- Track Placement: Gently place the locomotive on a clean, level model railway track. Ensure all wheels are correctly seated on the rails.
- Digital System Connection: This model is equipped with a PluX22 digital decoder (MX645P22) and an electrical interface for traction units. Connect your digital control system (DCC) according to its manufacturer's instructions. The locomotive is ready for digital operation.
- Power Supply: Ensure your digital control system is properly connected to a suitable power supply.
4. Operating Instructions
The Roco 70788 locomotive is designed for digital operation (DCC) and offers various functions:
- Movement Control: Use your DCC controller to adjust speed and direction.
- Headlights and Taillights: The model features light changeover true to the Dutch original, including LED headlights. Headlights and taillights can be individually switched in digital mode.
- Blue Flashing Lights: The model includes blue flashing lights, characteristic of the original Dutch prototype.
- Shunting Lights: Switchable shunting lights are available for realistic shunting operations.
- Sound Functions: The integrated DCC sound module provides realistic locomotive sounds. Refer to your DCC controller's manual for activating specific sound functions.
- Additional Light Functions: The model supports additional light functions, which can be controlled via your digital system.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your model locomotive.
- Cleaning: Keep the wheels and track clean from dust and debris. Use a soft, lint-free cloth for cleaning the locomotive body. Avoid abrasive cleaners.
- Lubrication: Periodically lubricate moving parts such as gears and axles with specialized model railway lubricant. Refer to the manufacturer's recommendations for specific lubrication points and frequency.
- Storage: When not in use, store the locomotive in its original packaging or a protective case to prevent dust accumulation and damage.
6. Troubleshooting
If you encounter issues with your Roco 70788 locomotive, consider the following:
- No Movement/Intermittent Power:
- Check all track connections and ensure they are clean.
- Verify that your digital control system is powered on and functioning correctly.
- Inspect the locomotive wheels for dirt or obstructions.
- Lights Not Working:
- Ensure the locomotive is receiving power.
- Check your DCC controller for correct function commands for lighting.
- Sound Not Working:
- Confirm the sound function is activated via your DCC controller.
- Check the volume settings on your DCC system or decoder.
- Derailment:
- Ensure tracks are properly laid and free of kinks or uneven sections.
- Check the locomotive's wheels for any damage or misalignment.
If problems persist, consult the Roco website or contact their customer support.
7. Specifications
Detailed technical specifications for the Roco 70788 NS 2400 Diesel Locomotive:
| Feature | Detail |
|---|---|
| Model Number | 70788 |
| Brand | Roco |
| Product Dimensions (L x W x H) | 29.24 x 10.9 x 5.46 cm |
| Weight | 589.67 g |
| Material Type | Plastic |
| Coupling | Digitally controllable |
| Minimum Radius | 358 mm |
| Flywheel | Yes |
| Number of Driven Axles | 4 |
| Number of Axles with Traction Tyres | 1 |
| Epoch | IV |
| Railway Company | NS (Nederlandse Spoorwegen) |
| Motor | 5-pole motor |
| Headlight | Light changeover true to the Dutch original |
| LED Headlight | Yes |
| Additional Light Function | Yes |
| Control | 2L - Digital |
| Interface | Electrical interface for traction units PluX22 |
| Digital Decoder | PluX22 MX645P22 |
| Decoder Type | MX645P22 |
| Sound | Yes |
| Buffer Capacitor | Yes |
| Length over Buffer | 143 mm |
| Power Source | Electric Cord |
| Operating Mode | Automatic |
| Assembly Required | No |

This image displays a table outlining the general data, electrical features, and measurements of the Roco 70788 NS 2400 Diesel Locomotive. Key specifications include digitally controllable coupling, 358mm minimum radius, 5-pole motor, PluX22 digital decoder with sound, and a length of 143mm over buffers.
8. Warranty and Support
For warranty information, please refer to the documentation provided with your purchase or visit the official Roco website. If you require technical support or have questions regarding your Roco 70788 locomotive, please contact Roco customer service directly.





