Introduction
This instruction manual provides detailed guidance for the assembly, operation, and maintenance of your Tamiya 56344 1/14 RC Grand Hauler Kit. This remote-controlled model assembly kit meticulously recreates a customized big rig truck, offering a realistic and engaging building experience.
What's in the Box:
- Tamiya 56344 1/14 RC Grand Hauler Kit components
Note: A 4-channel R/C system and Multi-Function Control Unit (MFC) are required for operation and are sold separately.
Setup and Assembly
The Tamiya 56344 Grand Hauler is an assembly kit designed for enthusiasts. Follow the included detailed instruction booklet for step-by-step assembly. Key features to assemble include:
- Ladder Frame Chassis: Assemble the aluminum side channels with resin cross members to form the robust ladder frame chassis.
- Suspension System: Install the highly realistic suspension utilizing metal leaf springs and friction dampers for authentic movement.
- Drivetrain: Mount the front-mounted motor and the 3-speed transmission. Connect these to the two rear wheel axles, which are fitted with built-in differentials to ensure smooth cornering.
- Cab and Body Details: Attach the detailed cab and other body components, including precisely replicated parts like rubber tires, chrome wheels, and a detailed cab interior.
- Fifth Wheel Connector: Install the adjustable fifth wheel connector, allowing for attachment of various trailers (sold separately).

Image: Assembled Tamiya 1/14 RC Grand Hauler Kit, showcasing its detailed side profile.

Image: Detailed front view of the Tamiya 1/14 RC Grand Hauler, highlighting the grille and bumper.
Operating Your Grand Hauler
To operate your Tamiya 1/14 RC Grand Hauler, you will need a 4-channel R/C system and a Multi-Function Control Unit (MFC), both sold separately. The MFC unit enhances your driving experience with realistic lights, sounds, and vibrations.
- Power On: Ensure your R/C system and MFC unit are correctly connected and powered on according to their respective manuals.
- Driving: Use the R/C transmitter to control the truck's movement. The 3-speed transmission allows for varied driving speeds, while the differentials in the rear axles ensure smooth turns.
- Realistic Effects: The MFC unit provides synchronized light functions (headlights, tail lights, turn signals), engine sounds (startup, idle, acceleration, braking), and vibrations, immersing you in the driving experience.
- Trailer Operation: If a trailer is attached via the fifth wheel connector, ensure it is securely fastened before operation.

Image: The Tamiya 1/14 RC Grand Hauler Kit, fully assembled and ready for operation, displayed against a dark background.
Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your Tamiya RC Grand Hauler. Refer to the detailed assembly manual for specific maintenance instructions for each component.
- Cleaning: After each use, especially if operated outdoors, clean the truck to remove dirt, dust, and debris. Use a soft brush or cloth. Avoid excessive moisture on electronic components.
- Lubrication: Periodically lubricate moving parts such as gears, axles, and suspension components as specified in the assembly manual. Use appropriate RC-grade lubricants.
- Inspection: Regularly inspect all screws, nuts, and bolts for tightness. Check the condition of the tires, suspension, and wiring for any signs of wear or damage.
- Battery Care: Follow the battery manufacturer's instructions for charging, discharging, and storage to ensure safety and maximize battery life.
Troubleshooting
If you encounter issues with your Tamiya RC Grand Hauler, consult the original assembly manual for detailed troubleshooting steps. Common issues and general advice include:
- No Power: Check battery connections, ensure batteries are charged, and verify the power switch is in the "ON" position for both the truck and the R/C transmitter.
- Loss of Control/Interference: Ensure the R/C transmitter and receiver are properly bound. Check for strong interference sources nearby.
- Motor Issues: Inspect motor wiring and connections. Ensure no debris is obstructing the gears or motor.
- Mechanical Noises: Investigate any unusual noises. This may indicate loose parts, worn gears, or debris in the drivetrain. Disassemble and inspect as needed.
For persistent problems, contact Tamiya customer support or an authorized service center.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 16.63 x 27.5 x 7.88 inches |
| Item Weight | 4.4 pounds |
| ASIN | B00TFNGD4U |
| Item Model Number | TAM56344 |
| Manufacturer Recommended Age | 16 years and up |
| Release Date | January 1, 2018 |
| Manufacturer | Tamiya |
Warranty and Support
For information regarding product warranty, returns, or technical support, please refer to the documentation included with your Tamiya 56344 1/14 RC Grand Hauler Kit or visit the official Tamiya website. Specific warranty terms may vary by region and retailer.





