1. Introduction
This manual provides instructions for the safe and efficient operation of your FBK Portable Tire Inflator Digital Air Compressor, model ST-08. This device is designed for inflating tires on cars, motorcycles, and bicycles, as well as various sports equipment. It features a digital display, auto shut-off function, and an emergency LED light.

Image 1.1: FBK Portable Tire Inflator Digital Air Compressor ST-08, showing the main unit, 12V DC power cord, and various nozzle adapters.
2. Safety Information
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the product.
- Power Source: Connect the inflator only to a 12V DC power outlet (cigarette lighter socket).
- Continuous Use: Do not operate the air compressor for more than 15 minutes continuously. Allow the unit to cool down for an equal amount of time (minimum 15 minutes) before resuming use to prevent overheating.
- Pressure Settings: Always set the desired pressure before starting inflation. Ensure the set pressure is appropriate for the item being inflated.
- Over-inflation: Avoid over-inflating tires or other items. The auto shut-off feature helps prevent this, but always monitor the process.
- Children and Pets: Keep the device out of reach of children and pets.
- Storage: Store the inflator in a dry, cool place when not in use.
- Intended Use: This pump is not intended for use with high-pressure or large-volume applications such as inflatable pools or canoes.
- Cord Length: Be aware of the power cord length (10.83 ft) when positioning the inflator to reach all tires.
3. Package Contents
Verify that all items are present in the package:
- FBK Portable Tire Inflator (Model ST-08)
- 12V DC Power Cord (integrated)
- Air Hose (integrated)
- Nozzle Adaptors (4 pieces)
- Extra Fuse (1 piece)
- Carrying Case
- User Manual (this document)

Image 3.1: Included specialized inflation kit, showing the air hose, various nozzle adapters for different applications, and the portable storage bag.
4. Product Overview
Familiarize yourself with the components of your tire inflator:

Image 4.1: Labeled diagram of the FBK Portable Tire Inflator, highlighting key components such as the foldable handle, digital LED display, LED light, nozzle storage, and 12V cigarette lighter plug.
- Foldable Handle: For easy carrying and storage.
- Digital LED Display: Shows current pressure and allows setting target pressure.
- LED Light: Provides illumination for use in low-light conditions.
- Nozzle Storage: Integrated compartment for storing nozzle adaptors.
- 12V Cigarette Lighter Plug: Power connection for the vehicle's 12V DC outlet.
- Control Buttons:
- "R" Button: Unit Switching (PSI, BAR, KG/CM²)
- "+" Button: Increase desired pressure
- "-" Button: Decrease desired pressure
- LED Light Switch: Turns the LED light on/off
- Start Switch: Initiates/stops inflation
5. Setup and Operation
Follow these steps to set up and operate your tire inflator:

Image 5.1: Visual guide demonstrating the six steps for using the FBK Portable Tire Inflator, from starting the car engine to automatic shut-off.
- Start Car Engine: For optimal performance and to avoid draining your vehicle's battery, start your car's engine before connecting the inflator.
- Connect Power: Insert the 12V DC plug into your vehicle's cigarette lighter socket.
- Attach Air Hose: Connect the air hose nozzle to the tire valve stem. Press the buckle tightly to ensure a secure, airtight connection. For other inflatables, select the appropriate nozzle adaptor and attach it to the air hose before connecting to the item.
- Set Pressure Unit: Press the "R" button to cycle through pressure units (PSI, BAR, KG/CM²) until your desired unit is displayed.
- Set Target Pressure: Use the "+" and "-" buttons to set the desired target pressure. The display will show the current pressure of the tire. Ensure the target pressure is higher than the current pressure.
- Start Inflation: Press the Start Switch to begin inflation. The inflator will automatically stop once the preset pressure is reached.
- Disconnect: Once inflation is complete, turn off the inflator, disconnect the air hose from the valve, and unplug the 12V DC power cord.
Note on Inflation Times:
- A 195/65R15 car tire can be inflated from 0 to 35 PSI in approximately 5 minutes.
- A 100/90-10 motorcycle tire can be fully inflated in approximately 2 minutes.
- A 26x1.95 bicycle tire can be fully inflated in approximately 40 seconds.
- A standard basketball can be fully inflated in approximately 25 seconds.

Image 5.2: Examples of rapid inflation times for car tires, motorcycle tires, bicycle tires, and sports balls.
6. Maintenance
Proper maintenance ensures the longevity and performance of your tire inflator.
- Cleaning: Wipe the exterior of the inflator with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the inflator and its accessories in the provided carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.
- Fuse Replacement: If the inflator stops working, check the fuse in the 12V DC plug. Replace it with the provided spare fuse if necessary.
- Hose Inspection: Regularly inspect the air hose for any signs of wear, cracks, or damage.
7. Troubleshooting
Refer to this section for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inflator does not turn on. |
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| Slow inflation or no inflation. |
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| Inaccurate pressure reading. |
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| Cord does not reach all tires. |
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8. Specifications
Technical specifications for the FBK Portable Tire Inflator ST-08:
- Model Name: ST-08
- Brand: FBK
- Power Source: 12V DC (Corded Electric)
- Maximum Operating Pressure: 150 PSI
- Air Flow Capacity: 35 Liters Per Minute
- Maximum Power: 0.13 Horsepower (120W)
- Motor Horsepower: 0.125 horsepower
- Hose Length: 10.83 Feet
- Noise Level: 95 dB
- Item Weight: 2.09 pounds
- Package Dimensions: 9.57 x 6.06 x 4.37 inches
- Special Features: Portable, Auto Shut-Off, Digital Display, LED Light
- Included Components: Power Cord, 4 Nozzle Adaptors, 1 Extra Fuse, Carrying Case
9. Warranty and Support
For warranty information or technical support, please refer to your purchase documentation or contact the retailer where the product was purchased. Keep your proof of purchase for warranty claims.
Manufacturer: FBK





