1. Introduction
This manual provides detailed instructions for the installation and maintenance of your Hobbypark Aluminum Rear Lower Arms. These high-quality upgrade parts are designed to enhance the durability and performance of compatible 1/10 scale RC vehicles. Please read this manual thoroughly before proceeding with installation.
2. Product Overview
Figure 2.1: Hobbypark Aluminum Rear Lower Arms (L/R) with M3 Grub Screws.
2.1. Item Description
- Item: Aluminum Rear Lower Arms
- Part No.: 108021
- Package Includes: 1x Aluminum Rear Lower Arms (Left & Right), 4x M3 Grub Screws
2.2. Key Features
- Constructed from high-quality Aluminum 6061 for superior strength.
- CNC machined for precise fitment and increased durability.
- Designed as a direct upgrade for stock plastic components.
2.3. Compatibility
Figure 2.2: Examples of compatible RC vehicles.
These aluminum rear lower arms are compatible with the following 1/10 scale RC vehicle models:
- Redcat Racing Volcano Epx / Epx PRO
- HSP BRONTOSAURUS (Pro)
- Exceed Infinitive EP
Note: Always refer to your specific model's manual to confirm part compatibility before installation.
3. Installation Guide
This section outlines the steps for replacing your vehicle's stock rear lower arms with the Hobbypark Aluminum Rear Lower Arms. Basic RC vehicle maintenance tools (e.g., hex wrenches, pliers) will be required.
3.1. Preparation
- Ensure your RC vehicle is powered off and the battery is disconnected.
- Gather necessary tools, including appropriate hex wrenches for the M3 grub screws and any other fasteners on your vehicle's suspension.
- Place the vehicle on a clean, stable surface.
3.2. Removal of Existing Arms
- Carefully identify the existing rear lower arms on your RC vehicle.
- Remove the screws, pins, or E-clips securing the stock lower arms to the chassis and the wheel hubs/knuckles. Pay close attention to the orientation of all removed parts.
- Gently detach and remove the old lower arms. Keep all removed hardware organized.
3.3. Installation of Aluminum Arms
Figure 3.1: Aluminum arms ready for installation.
- Take one Hobbypark Aluminum Rear Lower Arm (ensure you use the correct left or right arm as supplied).
- Align the new aluminum arm with the mounting points on the chassis and the wheel hub/knuckle.
- Secure the arm using the original pins/screws and the supplied M3 Grub Screws where applicable. It is highly recommended to apply a small amount of removable threadlocker (e.g., blue Loctite) to the grub screws to prevent them from loosening during operation.
- Exercise caution when handling E-clips, as they can be small and prone to bending or loss.
- Repeat the process for the other side of the vehicle.
- Once both arms are installed, gently move the suspension components to ensure free movement and proper articulation.
4. Maintenance
Regular maintenance will ensure the longevity and optimal performance of your Hobbypark Aluminum Rear Lower Arms.
- Cleaning: After use, especially in dirty or dusty conditions, clean the arms with a soft brush or cloth to remove debris. Avoid harsh chemicals that could damage the aluminum finish.
- Inspection: Periodically inspect the arms for any signs of damage, bending, or excessive wear. Check the mounting points and pivot areas for any looseness.
- Fastener Check: Regularly check the tightness of all screws, especially the M3 grub screws. Reapply threadlocker if any screws show signs of loosening.
5. Troubleshooting
This section addresses common issues you might encounter with your aluminum rear lower arms.
| Problem | Possible Cause | Solution |
|---|---|---|
| Screws (especially M3 grub screws) loosen or fall out. | Vibrations during operation; insufficient thread engagement. | Apply a small amount of removable threadlocker (e.g., blue Loctite) to the screw threads during installation. Ensure screws are tightened securely. |
| Arms do not fit correctly. | Incorrect model compatibility; manufacturing tolerance. | Double-check your RC vehicle's model number against the compatibility list. If issues persist, contact Hobbypark support. |
| Suspension feels stiff or binds after installation. | Over-tightened screws; misaligned components. | Loosen screws slightly and re-tighten to a snug fit without over-tightening. Ensure all components are correctly aligned before tightening. |
6. Specifications
| Attribute | Detail |
|---|---|
| Item Model Number | 19-252 |
| Package Dimensions | 5.59 x 2.09 x 0.39 inches |
| Item Weight | 2.05 ounces |
| Manufacturer | DNhobby |
| Recommended Age | 12 years and up |
7. Warranty and Support
Hobbypark is committed to customer satisfaction. If you are not 100% completely satisfied with your product, or if you encounter any issues not covered in this manual, please do not hesitate to contact Hobbypark customer support to request a refund or exchange.
For support, please visit the official Hobbypark store on Amazon or refer to the contact information provided with your purchase.
Note: Always check your specific model's manual for compatibility or contact Hobbypark directly for assistance.