1. Introduction
This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your Aurethryon Portable Tire Inflator, Model AM21J2. Please read this manual thoroughly before using the device to ensure proper function and to prevent damage or injury.
Image 1.1: Aurethryon Portable Tire Inflator AM21J2 and included accessories.
2. Safety Information
- Always operate the inflator in a well-ventilated area.
- Do not leave the inflator unattended while in operation.
- Keep out of reach of children.
- Avoid over-inflating tires. Always refer to the recommended pressure for your specific item (vehicle, bicycle, ball, etc.).
- Do not expose the inflator to rain or wet conditions.
- Do not use the inflator if it has been dropped or damaged.
- The inflator may become warm during prolonged use. Allow it to cool down before storing.
- This device is not recommended for heavy-duty tires such as those on trucks, pickups, RVs, or off-road vehicles.
3. Package Contents
Verify that all items are present in the package:
- 1x Aurethryon Portable Tire Inflator with Press-to-Lock Lever
- 1x Air Hose with Schrader Valve
- 2x General Nozzle Cones
- 1x Needle Adapter
- 1x Presta Adapter
- 1x USB-C Charging Cable
- 1x Storage Pouch
- 1x User Manual (this document)
Image 3.1: Visual representation of all included package contents.
4. Product Overview and Features
The Aurethryon Portable Tire Inflator is a compact, cordless air compressor designed for various inflation needs. Key features include:
- Durable Construction: Features an industrial-grade 17mm aluminum cylinder, a 76W high-power pure copper motor, military-spec ABS housing, and a tear-resistant nylon hose for enhanced longevity. Certified UN38.3/RoHS, operating effectively from -10℃ to 60℃.
- Smart Inflation System: Offers a 3-step inflation process with selectable units (PSI, KPA, BAR, KG/CM²) and 5 preset modes (Car, Motorcycle, Bike, Ball, Custom). Automatically stops at the target pressure with ±0.1 PSI accuracy.
- Ultra-Portable Design: Weighing just 1.1 lbs, it is designed for easy storage and transport.
- High-Capacity Battery: Equipped with a UN38.3-certified 5200mAh battery (Type-C charging) capable of inflating multiple tires on a single charge. Includes overcharge and overheat protection.
- Fast Inflation: A 16500RPM motor and 17mm aluminum cylinder deliver 30L/min airflow, significantly reducing inflation times.
- Dual Cooling System: Multi-blade turbo fans and vented housing prevent overheating during continuous operation.
- Versatile Nozzles: Includes 5 nozzles (1 Schrader, 1 Presta, 1 needle inflator, 2 long air nozzles) for a wide range of applications. The Press-to-Lock Lever ensures a secure, leak-proof seal.
- Multi-functional: Functions as a real-time tire pressure gauge, a 120LM LED worklight (10hr runtime), and an SOS emergency beacon.
Image 4.1: The digital display showing pressure settings and battery status.
Image 4.2: Battery capacity and estimated inflation counts for various items.
5. Setup
5.1 Charging the Inflator
- Locate the USB-C charging port on the device.
- Connect the provided USB-C cable to the inflator and to a compatible USB power adapter (not included) or a USB port.
- The battery indicator on the digital display will show charging progress. Ensure the device is fully charged before first use. A full charge typically takes approximately 2 hours.
5.2 Attaching the Air Hose and Nozzles
- Screw the air hose securely onto the inflator's air outlet.
- Select the appropriate nozzle for the item you wish to inflate.
- Schrader Valve: Directly attach the air hose to car, motorcycle, and some bicycle tires.
- Presta Adapter: Use for Presta bicycle valves.
- Needle Adapter: For sports balls.
- General Nozzle Cones: For inflatable toys, air mattresses, etc.
- Attach the selected nozzle to the end of the air hose.
6. Operating Instructions
6.1 Powering On and Connecting
- Press and hold the power button (Ⓡ) to turn on the inflator. The digital display will illuminate.
- Connect the air hose with the appropriate nozzle to the item you intend to inflate. Ensure a secure, leak-proof connection using the Press-to-Lock Lever if applicable.
Image 6.1: Easy 3-step inflation process: Connect, Preset PSI, Auto-Stop.
6.2 Setting Pressure and Mode
- Select Unit: Press the 'U' button to cycle through pressure units: PSI, KPA, BAR, KG/CM².
- Select Mode: Press the 'M' button to choose from 5 preset inflation modes: Car, Motorcycle, Bike, Ball, or Custom. Each mode has a default pressure value.
- Adjust Target Pressure: Use the '+' and '-' buttons to increase or decrease the target pressure. Refer to your item's recommended pressure.
6.3 Starting and Stopping Inflation
- Once the target pressure is set, press the power button (Ⓡ) to begin inflation. The inflator will automatically stop when the target pressure is reached.
- To manually stop inflation at any time, press the power button (Ⓡ) again.
- Carefully disconnect the air hose from the item. A small amount of air may escape, which is normal.
6.4 Using the LED Worklight and SOS Function
- Press the light button (💡) once to turn on the LED worklight.
- Press the light button again to activate the SOS flashing mode.
- Press the light button a third time to turn off the light.
7. Maintenance
- Cleaning: Wipe the exterior of the inflator with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the device is off and disconnected from power before cleaning.
- Storage: Store the inflator and its accessories in the provided storage pouch in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, charge the device at least once every three months, even if not in use. Avoid fully discharging the battery frequently.
- Hose Inspection: Regularly inspect the air hose for any signs of wear, cracks, or damage. Replace if necessary.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inflator does not turn on. | Battery is depleted. | Charge the inflator using the provided USB-C cable. |
| Inflator runs but no air comes out or inflation is slow. | Air hose or nozzle is not securely connected. Air hose is blocked or damaged. Incorrect nozzle used. | Ensure all connections are tight. Check the hose for kinks or blockages. Replace if damaged. Select the correct nozzle for the item. |
| Inflator stops prematurely. | Target pressure reached. Overheating protection activated. Battery low. | This is normal operation. Allow the inflator to cool down for 10-15 minutes before resuming use. Recharge the battery. |
| Inaccurate pressure reading. | Loose connection. Sensor malfunction. | Ensure the air hose is securely attached to the valve. If the issue persists, contact customer support. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | Aurethryon |
| Model | AM21J2 |
| Max Pressure | 150 PSI |
| Power | 76W |
| Motor Speed | 16500 RPM |
| Airflow Rate | 30 L/min |
| Battery Capacity | 5200mAh (2x Lithium Ion batteries) |
| Charging Port | USB-C |
| Dimensions | 2.3 x 1.5 x 6 inches |
| Weight | 1.09 pounds |
| Operating Temperature | -10℃ to 60℃ |
| Certifications | FCC, CE, UKCA, UN38.3, RoHS |
10. Warranty and Support
Aurethryon products are manufactured to high-quality standards. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Aurethryon website. If you encounter any issues or have questions regarding your product, please contact Aurethryon customer support through the retailer where the product was purchased or via the contact information provided on the official website.