Astro Pneumatic Tool 3058
Astro 3058 Electric Dual Action Random Orbital Polisher with 3 Piece Pad Kit, 6"
Instruction Manual
Introduction
Thank you for choosing the Astro 3058 Electric Dual Action Random Orbital Polisher. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your new polisher. Please read this manual thoroughly before using the product and retain it for future reference.
This polisher is designed to easily remove swirl marks and scratches, and improve paint gloss on various surfaces. It features an 8mm orbit for professional, swirl-free results and includes a 3-piece foam pad kit for cutting, waxing, and buffing applications.
Safety Information
Always observe basic safety precautions when using electrical tools to reduce the risk of fire, electric shock, and personal injury. Failure to follow these instructions may result in serious injury or property damage.
- Read all instructions: Familiarize yourself with the polisher's controls and proper usage.
- Wear appropriate safety gear: Always wear safety glasses, hearing protection, and a dust mask when operating the polisher.
- Keep work area clean and well-lit: Cluttered or dark areas invite accidents.
- Avoid dangerous environments: Do not use power tools in damp or wet locations, or expose them to rain.
- Keep children and bystanders away: Distractions can cause you to lose control.
- Secure workpiece: Always secure the material being polished to prevent movement during operation.
- Do not overreach: Maintain proper footing and balance at all times.
- Disconnect power: Always unplug the polisher from the power source before making any adjustments, changing accessories, or storing the tool.
- Use the right tool: Do not force the polisher or use it for purposes for which it was not intended.
- Inspect tool before use: Check for damaged parts, misalignment, or any other condition that may affect its operation.
- Maintain tools with care: Keep cutting tools sharp and clean for better and safer performance. Follow instructions for lubricating and changing accessories.
- Avoid accidental starting: Ensure the switch is in the OFF position before plugging in.
- Extension cords: Use only extension cords suitable for outdoor use and rated for the polisher's power requirements.
- Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Package Contents
Carefully unpack the contents and ensure all items are present and undamaged. If any items are missing or damaged, please contact your retailer.
- Astro 3058 Electric Dual Action Random Orbital Polisher
- 6-inch Backing Plate (pre-installed or separate)
- Foam Pad (Orange - Cutting)
- Foam Pad (Blue - Buffing/Finishing)
- Foam Pad (Black - Waxing/Polishing)
- Side Handle
- Instruction Manual (this document)

Image: The Astro 3058 polisher shown alongside the included orange and blue foam pads.
Features
The Astro 3058 Polisher is equipped with several features designed for optimal performance and user comfort:
- Dual Action Random Orbital Motion: Provides swirl-free results and reduces the risk of paint damage.
- 8mm Orbit: Optimized for efficient material removal and finishing.
- Variable Speed Settings: 6 different RPM settings allow adjustment for various applications and materials.
- Low Noise and Vibration: Engineered for a more comfortable user experience during prolonged use.
- Ergonomic Design: Features a comfortable soft-touch head cover and handle for improved grip and control.
- 12ft. Power Cord: Provides ample reach for most detailing tasks.
- Sealed Ball Bearings: Ensures durability and smooth operation.

Image: Side profile of the Astro 3058 polisher, highlighting its ergonomic design.
Setup
- Attach Side Handle:
Screw the side handle into the threaded hole on the side of the polisher's head. Tighten securely by hand. This handle provides additional control and comfort during operation.
- Select and Attach Foam Pad:
Choose the appropriate foam pad for your task (cutting, polishing, or waxing). The pads attach to the 6-inch backing plate via hook-and-loop fasteners. Align the pad centrally on the backing plate and press firmly to secure it.

Image: The included foam pads, ready for attachment to the polisher's backing plate.
- Power Connection:
Ensure the polisher's power switch is in the "OFF" position before plugging the 12ft. power cord into a standard electrical outlet (120V AC, 60Hz). Do not use damaged cords or plugs.
Operating Instructions
- Prepare the Surface:
Before polishing, ensure the surface is clean, dry, and free of loose dirt or debris. For best results, wash and decontaminate the vehicle's paint or surface thoroughly.
- Apply Compound/Polish:
Apply a small amount of your chosen compound, polish, or wax directly onto the foam pad or evenly distribute a few dots onto the working surface area. Do not over-apply.
- Set Speed:
The polisher features 6 different RPM settings. Start with a lower speed (e.g., 1-3) to spread the product evenly, then increase to a higher speed (e.g., 4-6) for cutting or polishing. Refer to the product manufacturer's recommendations for specific speed settings.

Image: The variable speed dial located on the top of the polisher, allowing selection from 1 to 6 RPM settings.
- Start Polishing:
Place the foam pad flat against the surface before turning the polisher ON. Turn the polisher ON and move it slowly and evenly over the surface in overlapping passes. Maintain light, consistent pressure. Avoid tilting the polisher, which can concentrate pressure and cause uneven results.
- Work in Sections:
Work on small sections at a time (e.g., 2x2 feet) to ensure thorough coverage and product effectiveness. Do not allow compounds or polishes to dry on the surface.
- Turn Off and Clean:
Before lifting the polisher from the surface, turn it OFF. Wipe off any residue with a clean microfiber towel. Repeat the process for subsequent sections.
Maintenance
Regular maintenance will ensure the longevity and optimal performance of your Astro 3058 Polisher.
- Cleaning Foam Pads: After each use, remove the foam pad and clean it thoroughly. Most foam pads can be washed with warm water and a mild detergent, then rinsed and air-dried completely before storage.
- Cleaning the Polisher Body: Wipe down the polisher body with a clean, damp cloth to remove any product residue or dust. Do not use harsh chemicals or abrasive cleaners. Ensure no liquids enter the motor housing.
- Inspect Power Cord: Regularly check the power cord for any signs of damage, cuts, or fraying. If damaged, have it repaired by a qualified technician.
- Storage: Store the polisher in a clean, dry place, away from direct sunlight and extreme temperatures. Ensure the power cord is neatly coiled and not kinked.
- Carbon Brushes: The motor uses carbon brushes. If the tool experiences reduced power or intermittent operation, the brushes may need inspection or replacement. This should be performed by a qualified service technician.
Troubleshooting
If you encounter issues with your polisher, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Polisher does not turn on. | No power supply; Power switch is off; Damaged cord/plug. | Check power outlet; Ensure switch is ON; Inspect cord for damage and replace if necessary. |
| Excessive vibration or noise. | Pad not centered; Damaged backing plate; Internal issue. | Re-center pad; Inspect backing plate for damage and replace if needed; Contact service for internal issues. |
| Poor polishing results (swirls, uneven finish). | Incorrect pad/product combination; Too much pressure; Working too fast/slow; Surface not clean. | Ensure correct pad/product for task; Use light, even pressure; Adjust speed and movement; Thoroughly clean surface before polishing. |
| Pad detaches during use. | Pad not properly secured; Hook-and-loop worn out; Excessive heat. | Press pad firmly onto backing plate; Replace worn pads; Allow polisher to cool if overheating. |
Specifications
| Attribute | Value |
|---|---|
| Model Number | 3058 |
| Brand | Astro Pneumatic Tool |
| Type | Electric Dual Action Random Orbital Polisher |
| Pad Size | 6 inches |
| Orbit Diameter | 8mm |
| Power Source | Corded Electric |
| Speed Settings | 6 RPM settings |
| Item Weight | 5.6 pounds |
| Product Dimensions | 20.5 x 6.7 x 6.9 inches |
| Material | Rubber (handle/housing components) |
| UPC | 745227021352 |
Warranty and Support
For warranty information and technical support regarding your Astro 3058 Electric Dual Action Random Orbital Polisher, please refer to the warranty card included with your purchase or visit the official Astro Pneumatic Tool website. Do not attempt to repair the tool yourself, as this may void the warranty and cause further damage or injury. For service, contact Astro Pneumatic Tool customer support directly.
Manufacturer: Astro Pneumatic Tool Company
Date First Available: May 12, 2015
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