MOULD KING 12025

Mould King 12025 Remote Control Steam Locomotive Instruction Manual

Model: Orient Express SNCF Type 231 Locomotive à Vapeur

1. Introduction

Thank you for choosing the Mould King 12025 Remote Control Steam Locomotive building block set. This manual provides detailed instructions for the assembly, operation, maintenance, and troubleshooting of your model train. Please read this manual carefully before beginning assembly and retain it for future reference.

This set allows you to construct a detailed replica of the SNCF 231 steam locomotive, complete with remote control functionality, LED lighting, and simulated smoke. The set includes 3898 pieces, offering a challenging and rewarding building experience.

2. Safety Information

  • This product contains small parts and is not suitable for children under 3 years old due to choking hazards.
  • Adult supervision is recommended during assembly and operation, especially for younger users.
  • Keep all packaging materials away from children to prevent suffocation.
  • Do not expose electronic components to water or excessive moisture.
  • Ensure batteries are inserted with correct polarity. Do not mix old and new batteries or different types of batteries.
  • Dispose of used batteries responsibly according to local regulations.
  • Avoid direct contact with the simulated smoke output, as it may contain harmless but irritating substances.

3. Package Contents

The Mould King 12025 set includes the following main components:

  • 3898 building block pieces for the locomotive, coal wagon, and luxury passenger wagon.
  • Remote control unit.
  • Lithium battery for the train.
  • XL motors (2 sizes).
  • R104 track sections to form a circular track (170cm x 69cm).
  • LED lighting group.
  • Simulated smoke unit.
  • Detailed assembly instructions (in French, refer to the provided manual for visual guidance).

4. Assembly Instructions

Assembly of the Mould King 12025 is a multi-step process. Follow the included detailed French instruction manual for piece-by-piece guidance. The following sections provide a general overview and important tips.

4.1. Unpacking and Sorting

Carefully unpack all bags of building blocks. It is highly recommended to sort the pieces by color and type to facilitate the assembly process. The set contains many small parts, so ensure a clean and organized workspace.

4.2. Locomotive Chassis Assembly

Begin by assembling the main chassis of the locomotive. This forms the foundation for the entire model. Pay close attention to the placement of axles and gears for smooth operation.

Mould King 12025 Steam Locomotive assembled on tracks

Image 1: Fully assembled Mould King 12025 steam locomotive and passenger car on tracks.

4.3. Motor and Electronic Component Installation

Install the XL motors and the lithium battery compartment into the designated sections of the locomotive. Route all wires carefully to avoid pinching or damage. Connect the LED lighting group and the simulated smoke unit according to the instructions. Ensure all connections are secure.

Note: Customer feedback indicates that wiring for lighting can be delicate. Exercise caution to prevent wires from breaking or short-circuiting during installation.

Close-up of Mould King 12025 locomotive interior details and connection points

Image 2: Detailed view of internal components, including connection points and cabin controls.

4.4. Wagon Assembly

Assemble the coal wagon and the luxury passenger wagon. These wagons are designed to be detachable and can be combined in various ways. The tops of the wagons can be opened to access internal details or electronic accessories. Wagons connect via magnetic attraction.

Mould King 12025 passenger wagon interior and roof removal

Image 3: Interior view of the passenger wagon and how the roof can be removed.

4.5. Track Assembly

Assemble the R104 track sections to form a complete circular track. Ensure all track pieces are securely connected to create a stable and continuous path for the train.

Diagram showing the dimensions of the circular R104 track layout

Image 4: Dimensions of the assembled circular track (170cm x 69cm).

5. Operating Instructions

5.1. Remote Control Setup

Insert the required batteries into the remote control unit (batteries for remote control are not included in the set). Power on the remote control and the train's main power switch (usually located on the locomotive's underside or within the coal wagon).

5.2. Pairing the Remote Control

Follow the specific pairing instructions in your detailed French manual to connect the remote control to the train. Typically, this involves holding a button on both the train and the remote until a connection is established (indicated by a light or sound).

5.3. Basic Train Functions

  • Movement: Use the joystick or directional buttons on the remote control to move the train forward or backward. Adjust speed as desired.
  • LED Lighting: Activate or deactivate the LED lights using the designated button on the remote.
  • Simulated Smoke: If the smoke unit is filled with appropriate liquid (not included) and connected, use the remote control to activate the simulated smoke feature.
  • Sound Effects: Some models may include sound effects. Refer to your detailed manual for specific controls.
Mould King 12025 steam locomotive on curved tracks

Image 5: The Mould King 12025 locomotive navigating a curved section of track.

6. Maintenance

6.1. Cleaning

To clean the building blocks and train model, use a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the electronic components. Do not use harsh chemicals or abrasive cleaners.

6.2. Storage

When not in use, store the train set in a cool, dry place away from direct sunlight and extreme temperatures. Disassemble wagons if desired for compact storage. Remove batteries from both the train and remote control if storing for extended periods to prevent leakage.

6.3. Track Care

Keep the tracks clean and free of dust or debris to ensure optimal electrical contact and smooth train movement.

7. Troubleshooting

ProblemPossible CauseSolution
Train does not move.
  • Train power switch is off.
  • Low or dead batteries in train or remote.
  • Remote control not paired.
  • Motor wires disconnected or damaged.
  • Track obstruction or poor connection.
  • Ensure train power switch is ON.
  • Replace or recharge batteries.
  • Re-pair remote control (refer to section 5.2).
  • Check motor connections; reassemble if necessary.
  • Clear track and ensure all sections are firmly connected.
LED lights do not work.
  • LED wires disconnected or damaged.
  • Faulty LED unit.
  • Carefully check all LED wiring connections. (Note: Wires can be delicate).
  • Contact customer support if unit is faulty.
Simulated smoke not produced.
  • Smoke unit not filled with liquid.
  • Smoke unit wires disconnected.
  • Faulty smoke unit.
  • Ensure smoke unit is properly filled.
  • Check smoke unit wiring connections.
  • Contact customer support if unit is faulty.
Train is fragile or parts detach easily.
  • Blocks not fully pressed together during assembly.
  • Review assembly steps and ensure all blocks are firmly connected.

8. Specifications

Model NameOrient Express SNCF Type 231 Locomotive à Vapeur
Model NumberMould King 12025
BrandMOULD KING
Number of Pieces3898
Product Dimensions (L x W x H)118.5 x 12.7 x 8.9 cm (Locomotive)
Track Dimensions (L x W)170 x 69 cm (Circular layout)
MaterialPlastic
Power SourceBattery (Lithium battery for train, separate batteries for remote control)
Control MethodRemote Control
Recommended AgeAdult (or 8+ with supervision, despite manufacturer's 0-8 year recommendation which seems incorrect for this complex set)
UPC705736700407
Manufacturer ReferenceWX12025-LYF

9. Warranty and Support

Mould King provides an after-sales guarantee for this product. Each piece undergoes machine picking and three tests before packaging to ensure completeness.

Missing Parts: If you find any missing pieces in your set, please contact Mould King customer support directly. Missing parts will be sent to you free of charge.

For further assistance or inquiries, please refer to the contact information provided with your purchase or visit the official Mould King website.

© 2026 MOULD KING. All rights reserved.

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