1. Introduction
Thank you for purchasing the KATO N Gauge BR86 Steam Locomotive Model 12702-2. This model is a detailed replica of the German National Railway BR86 tank locomotive, known for its versatility and historical significance. This manual provides essential information to ensure safe and enjoyable operation, including setup, operating procedures, maintenance, and troubleshooting.
Please read this manual thoroughly before using your model to ensure proper handling and to maximize its lifespan.

This image displays the KATO N Gauge BR86 Steam Locomotive from a side perspective, highlighting its intricate details and robust design.
2. Setup
Before operating your KATO BR86 locomotive, ensure proper setup of your railway layout and the model itself.
2.1 Initial Inspection
Carefully remove the locomotive from its packaging. Inspect the model for any visible damage or loose parts. Ensure all wheels are properly seated and move freely.

This image shows the KATO BR86 locomotive securely packaged in its transparent plastic case, indicating how it appears upon unboxing.
2.2 Track Preparation
Ensure your N Gauge tracks are clean and properly assembled. Dust and dirt on the tracks can interfere with electrical contact and smooth operation.
- Always clean dust from the tracks using a vacuum cleaner or a soft brush before and during operation.
- Wipe off any dirt or grime from the tracks with a clean, dry cloth.
2.3 Power Connection
Connect your power pack to the tracks according to its instructions. The KATO BR86 locomotive operates on DC (direct current) power.
- Operate the vehicle with DC (direct current) 12 volts or less. Exceeding this voltage may damage the motor.
- In case of a short circuit on the tracks, immediately turn off the power pack to prevent damage to the locomotive or power supply.

This image displays the original instruction sheet provided with the KATO BR86 model, detailing important precautions and specifications in Japanese.
3. Operating Instructions
Once the tracks are clean and power is connected, you can begin operating your locomotive.
3.1 Placing the Locomotive on Tracks
Carefully place the locomotive on the tracks, ensuring all wheels are correctly seated on the rails. Avoid forcing the locomotive onto the tracks.
3.2 Starting and Stopping
Gradually increase the voltage from your power pack to start the locomotive. Avoid sudden acceleration or deceleration, as this can cause derailments or stress on the motor. To stop, slowly decrease the voltage until the locomotive comes to a complete halt.
3.3 Direction Control
Use the direction switch on your power pack to change the locomotive's direction of travel. It is recommended to bring the locomotive to a complete stop before reversing direction.

This image provides another side view of the KATO BR86 locomotive, showcasing its detailed construction and readiness for operation.
4. Maintenance
Regular maintenance will ensure the longevity and optimal performance of your KATO BR86 locomotive.
4.1 Cleaning the Locomotive
- Use a soft, dry cloth to gently wipe the exterior of the locomotive to remove dust and fingerprints.
- For wheels, use a specialized track cleaning tool or a cotton swab lightly dampened with isopropyl alcohol to clean the wheel treads. Ensure no liquid enters the motor or gears.
- Do not oil the vehicle. KATO models are designed for smooth operation without additional lubrication by the user. Improper oiling can attract dust and hinder performance.

This image shows the underside of the locomotive, revealing the wheel mechanisms and electrical contacts, which are crucial areas for cleaning and inspection.
4.2 Storage
When not in use, store the locomotive in its original packaging or a dedicated model train case to protect it from dust and physical damage. Avoid storing in extreme temperatures or high humidity.
5. Troubleshooting
If you encounter issues with your locomotive, refer to the following common troubleshooting steps:
5.1 Locomotive Not Moving
- Check Power Supply: Ensure your power pack is turned on and functioning correctly.
- Check Track Connection: Verify that the power pack is securely connected to the tracks.
- Clean Tracks: Dust or dirt on the tracks can prevent electrical contact. Clean the tracks as described in Section 2.2.
- Clean Wheels: Dirt on the locomotive's wheels can also impede electrical pickup. Clean the wheels as described in Section 4.1.
- Inspect for Obstructions: Look for any foreign objects or debris that might be preventing the wheels from turning freely.
5.2 Erratic Movement or Stalling
- Track Cleanliness: This is the most common cause. Thoroughly clean your tracks.
- Wheel Cleanliness: Ensure locomotive wheels are clean.
- Track Gaps: Check for any loose track connections or gaps that might interrupt power flow.
- Derailment: Ensure the locomotive is properly seated on the tracks.
5.3 Contacting Support
For vehicle malfunctions, inspections, or maintenance beyond basic troubleshooting, please contact the department store or retailer where you purchased the model, or the KATO service department.
6. Specifications
Detailed specifications for the KATO N Gauge BR86 Steam Locomotive Model 12702-2:
| Feature | Detail |
|---|---|
| Model Number | 12702-2 |
| Brand | KATO |
| Type | German National Railway BR86 Steam Locomotive |
| Arrangement | 1-D-1 (Tank locomotive) |
| Manufacturing Period | First manufactured in 1928 |
| Total Units Produced | 774 units |
| Driving Wheel Diameter | 1400mm (prototype) |
| Weight | 87.5t (prototype) |
| Scale | N Gauge |
| Special Features | Equipped with counter-pressure brake (prototype). Optional Kadee coupler (MT-10) can be attached to the model. |

This image provides a detailed view of the locomotive's side, including the number '86 007' and a sprue of additional detail parts that may be included for customization.
7. Warranty and Support
KATO products are manufactured to high standards. While specific warranty details are typically provided with the product packaging or by the retailer at the time of purchase, general support information is as follows:
7.1 Product Support
For any questions regarding the operation, maintenance, or troubleshooting of your KATO BR86 locomotive that are not covered in this manual, please refer to the contact information provided by your retailer or on the official KATO website.
7.2 Service and Repairs
If your locomotive requires inspection, repair, or service, please contact the department store or retailer where you purchased the item. They will be able to guide you on the appropriate steps for service or direct you to the KATO service department.





