Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Central Pneumatic 68271 Dual Chuck Tire Inflator with Dial Gauge. Please read this manual thoroughly before using the product and retain it for future reference.

Figure 1: Central Pneumatic 68271 Dual Chuck Tire Inflator with Dial Gauge. This image displays the complete tire inflator unit, featuring a flexible hose connecting to a dual-sided chuck, and a clear dial gauge mounted on the handle for pressure readings.
Important Safety Information
Always observe basic safety precautions when using this product to reduce the risk of injury or damage. Failure to follow these instructions may result in serious injury or property damage.
- Read All Instructions: Before operation, read and understand all safety warnings and instructions provided in this manual.
- Eye Protection: Always wear ANSI-approved safety goggles during operation.
- Proper Air Pressure: Do not exceed the maximum recommended tire pressure. Over-inflation can cause tires to burst, leading to serious injury.
- Inspect Before Use: Before each use, inspect the inflator for any damage, loose connections, or wear. Do not use if damaged.
- Keep Away from Children: This product is not a toy. Keep it out of reach of children.
- Store Properly: Store the inflator in a dry, secure location when not in use.
Product Components
Familiarize yourself with the parts of your tire inflator:
- Dial Gauge: Displays current tire pressure.
- Inflation Trigger/Lever: Activates airflow for inflation.
- Deflation Button: Releases air from the tire.
- Dual Chuck: Allows connection to various valve stem types (Schrader, Presta - though typically Schrader for automotive).
- Air Hose: Connects the inflator body to the chuck.
- Air Inlet: Connects to an air compressor hose (typically 1/4" NPT).
Setup
Before first use, ensure proper connection to an air compressor.
- Connect to Air Compressor: Attach the air inlet of the tire inflator to the quick-connect coupler of your air compressor hose. Ensure a secure, leak-free connection.
- Prepare Compressor: Turn on your air compressor and allow it to build up to the desired pressure. Refer to your compressor's manual for specific operating instructions.
- Check Gauge: Verify that the dial gauge on the inflator is functioning correctly and reads zero when not connected to a tire.
Operating Instructions
Follow these steps to accurately inflate or deflate tires:
- Determine Desired Pressure: Consult your vehicle's owner's manual or the tire placard (usually located on the driver's side door jamb, glove compartment, or fuel filler flap) for the recommended tire pressure.
- Remove Valve Cap: Unscrew the valve stem cap from the tire.
- Attach Chuck: Firmly press the dual chuck onto the tire's valve stem. Ensure a tight seal to prevent air leakage. The dual chuck allows for easy access to valve stems regardless of their orientation.
- Read Current Pressure: The dial gauge will display the current tire pressure.
- Inflate Tire: If the pressure is too low, squeeze the inflation trigger/lever to add air. Release the trigger periodically to check the pressure reading on the gauge. Inflate in short bursts to avoid over-inflation.
- Deflate Tire: If the pressure is too high, press the deflation button to release air until the desired pressure is reached.
- Remove Chuck: Once the desired pressure is achieved, quickly remove the chuck from the valve stem.
- Replace Valve Cap: Screw the valve stem cap back on to protect the valve.
- Repeat for All Tires: Check and adjust the pressure for all tires, including the spare, as needed.
Note: Tire pressure should be checked when tires are cold (driven less than a mile).
Maintenance
Regular maintenance ensures the longevity and accuracy of your tire inflator:
- Cleaning: Wipe the inflator body and gauge with a clean, dry cloth after each use. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the inflator in a clean, dry environment, away from direct sunlight and extreme temperatures.
- Inspect Hose and Connections: Periodically check the air hose for cracks, kinks, or leaks. Ensure all connections are tight.
- Gauge Calibration: While the gauge is designed for accuracy, professional calibration may be required periodically if precise measurements are critical.
Troubleshooting
Common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Gauge reads inaccurately. | Gauge is damaged or out of calibration. | Compare reading with a known accurate gauge. If consistently off, consider replacement or professional calibration. |
| Air leaks from chuck connection. | Chuck not fully seated on valve stem; worn chuck seal. | Ensure chuck is pressed firmly and squarely onto the valve stem. Inspect chuck for wear and replace if necessary. |
| No air flow when trigger is pressed. | Air compressor not on or not pressurized; hose kinked; internal blockage. | Check air compressor operation. Inspect air hose for kinks. If problem persists, seek professional service. |
| Deflation button not working. | Button mechanism is stuck or damaged. | Gently try to free the button. Do not force. If damaged, replacement may be necessary. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 68271 (also known as 2012-2-22_PH6_0064125) |
| Brand | Central Pneumatic |
| Type | Dual Chuck Tire Inflator with Dial Gauge |
| Material | Brass (for certain components) |
| Item Weight | 12.8 ounces |
| UPC | 792363682718 |
| First Available | January 18, 2012 |
Warranty Information
Central Pneumatic products are manufactured to high-quality standards. For specific warranty details, including duration and coverage, please refer to the warranty card included with your purchase or visit the official Central Pneumatic website. Keep your purchase receipt as proof of purchase for any warranty claims.
Customer Support
If you have any questions, require assistance, or need to report an issue with your Central Pneumatic 68271 Dual Chuck Tire Inflator, please contact Central Pneumatic customer support. Contact information can typically be found on the product packaging, the official brand website, or through your retailer.
For online resources, you may visit the Harbor Freight Tools Customer Service page, as Central Pneumatic is a brand commonly associated with Harbor Freight.





