1. Introduction
This manual provides detailed instructions for the assembly, setup, operation, and maintenance of your Mould King 17047 Mobile Crane Mk II Set. This advanced construction model is designed for enthusiasts aged 14 and up, offering a challenging and rewarding building experience.
The Mould King 17047 is a 1:8 scale mechanized crane model, comprising 2688 pieces. It features multi-directional movement, APP remote control capabilities, and includes motors for driving, steering, and arm control. The completed model measures approximately 56.3 cm (Length) x 18 cm (Width) x 21 cm (Height).

Image 1.1: The Mould King 17047 Mobile Crane Mk II Set, showcasing the assembled model and its packaging.

Image 1.2: The Mould King 17047 Mobile Crane Mk II Set demonstrating its lifting capabilities, controlled via a smartphone application.
2. Safety Warnings
- Recommended Age: This product contains small parts and is recommended for individuals aged 14 years and older. Keep out of reach of younger children to prevent choking hazards.
- Assembly: Adult supervision is recommended during assembly due to the complexity and number of small components.
- Battery Safety: Use only the specified lithium batteries. Ensure correct polarity when inserting batteries. Do not mix old and new batteries, or different types of batteries. Remove batteries if the model will not be used for an extended period. Dispose of batteries responsibly.
- Electrical Components: Handle motors and electrical components with care. Do not expose them to water or extreme temperatures.
- Moving Parts: Keep fingers, hair, and loose clothing away from moving parts during operation to avoid injury.
3. Package Contents
Before beginning assembly, verify that all components are present. The Mould King 17047 set includes:
- 2688 building pieces (plastic)
- 1x XL motor for driving
- 1x M motor for steering
- Motors for arm control
- 2x Lithium batteries
- 1x Remote control unit
- Detailed instruction manual (printed)
- Sticker sheet for detailing

Image 3.1: Overview of the package contents, including bagged building pieces, instruction manual, and sticker sheet.
4. Assembly
The Mould King 17047 Mobile Crane Mk II Set requires complete assembly. Follow the step-by-step instructions provided in the included printed manual. Due to the high piece count and intricate design, assembly can be time-consuming and requires careful attention to detail.
- Preparation: Organize pieces by type or color as suggested in the manual to streamline the building process.
- Step-by-Step: Adhere strictly to the sequence outlined in the instruction manual. Do not skip steps.
- Electrical Components: Pay close attention when integrating motors and wiring to ensure correct connections.
- Testing: Periodically test moving parts during assembly to confirm functionality before proceeding.

Image 4.1: An individual engaged in the assembly process of the Mould King 17047 Mobile Crane Mk II Set, highlighting the detailed construction.
5. Initial Setup
5.1 Battery Installation
- Locate the battery compartments on the model and the remote control unit.
- Insert the two provided lithium batteries into the model, ensuring correct polarity (+/-).
- Insert required batteries (not specified for remote, assume standard AA/AAA) into the remote control unit, observing polarity.
- Close all battery compartments securely.
5.2 APP Remote Control Connection
- Download the official Mould King control application from your device's app store (iOS/Android).
- Ensure Bluetooth is enabled on your smartphone or tablet.
- Turn on the power switch on the crane model.
- Open the Mould King app and follow the on-screen instructions to connect to your 17047 Mobile Crane. The app will typically guide you through pairing the device.
6. Operating the Mobile Crane
The Mould King 17047 Mobile Crane Mk II can be operated using the included physical remote control or via the dedicated smartphone application. Familiarize yourself with the controls before operating the model.
6.1 Basic Movement
- Driving: Use the designated controls (joystick/buttons on remote or app interface) to move the crane forward and backward. The XL motor powers the drive system.
- Steering: Control the direction of the crane using the steering mechanism, powered by the M motor.
- Multi-Directional Movement: The model is designed for precise maneuvering in various directions.
6.2 Crane Functions
- Boom Extension: Operate the controls to extend and retract the crane's main boom.
- 360-Degree Rotation: The crane body can rotate 360 degrees on its chassis, allowing for versatile positioning.
- Liftable Assisted Hoe: Utilize the controls to operate the assisted hoe mechanism for lifting and lowering objects.
- Outriggers: Extend the outriggers for increased stability during lifting operations.
- Opening Doors: The model features opening doors on the cabin for added realism.

Image 6.1: A collage illustrating key operational features: boom extension, liftable assisted hoe, opening doors, and 360-degree body rotation.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the model. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the model in a cool, dry place away from direct sunlight and extreme temperatures to prevent material degradation.
- Battery Care: Remove batteries if the model will not be used for an extended period to prevent leakage. Rechargeable batteries should be charged according to manufacturer guidelines.
- Component Check: Periodically inspect all connections and moving parts for wear or damage. Replace any broken pieces as needed.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Model does not power on. | Batteries are low or incorrectly installed. | Check battery polarity. Replace or recharge batteries. Ensure power switch is ON. |
| Remote control or app does not connect. | Bluetooth not enabled, model not powered, or pairing issue. | Ensure model is on. Enable Bluetooth on your device. Restart app and model, then attempt pairing again. |
| Motors are not responding. | Loose wiring connection or motor malfunction. | Inspect all motor connections for secure fit. If problem persists, contact support. |
| Crane functions (boom, rotation) are sluggish. | Low battery power or obstruction. | Replace or recharge batteries. Check for any physical obstructions preventing smooth movement. |
9. Specifications
- Model Number: 17047
- Brand: Mould King
- Material: Plastic
- Color: Yellow
- Scale: 1:8 Scale
- Number of Pieces: 2688
- Product Dimensions: 55.78 x 17.83 x 20.8 cm (Length x Width x Height)
- Assembly Required: Yes
- Batteries Required: Yes
- Batteries Included: Yes (Lithium batteries)
- Control Method: APP Remote Control, Physical Remote Control
- Motors: 1x XL motor (driving), 1x M motor (steering), additional motors for arm control
- Educational Objective: Hand-Eye Coordination
- Manufacturer Recommended Age: 14 years and up
10. Warranty and Support
Specific warranty details are not provided within the product information. For warranty claims, technical support, or inquiries regarding replacement parts, please contact Mould King customer service directly through their official website or the retailer from whom the product was purchased.
Please retain your proof of purchase for any warranty-related requests.