Getting your RAD torque gun settings right isn't just good practice – it's the difference between a secure, reliable joint and a potential failure waiting to happen. Whether you're working with a pneumatic, battery or electric RAD torque wrench, understanding how to set and verify your torque values is fundamental to safe, effective bolting.
We explain how to find the correct settings, configure both manual and digital RAD tools, and avoid the costly mistakes that come from getting it wrong.
Why Do Correct Torque Settings Matter?
Every fastener has a specific torque value designated by the manufacturer, measured in foot-pounds (ft-lbs) or newton-metres (Nm). Applying the wrong amount of force in either direction creates serious problems:
- Over-tightening applies excessive force that can strip threads, warp components or crack fasteners entirely. This compromises joint integrity and increases the risk of leaks or sudden equipment failure.
- Under-tightening leaves the joint loose, which can lead to vibration, gradual fastener loosening and eventual leaks. In high-pressure or safety-critical systems, this poses a significant hazard.
The correct torque setting ensures the fastener achieves the right clamping force without exceeding material limits. It's a precise balance, and your RAD torque gun is engineered to help you hit it consistently – provided you configure it properly.
How Do You Find the Right Torque Value?
You'll typically find the designated torque value in the manufacturer's assembly manual, service instructions or engineering data sheets for the specific fastener and application. Always consult these resources before starting any bolting operation. Never assume a torque value based on previous jobs or similar-looking fasteners – specifications vary across applications, materials and joint designs.
Setting Up a Manual RAD Torque Wrench
Manual RAD torque wrenches, such as the B-RAD battery series, feature quick-reference torque chart labels on the tool's barrel. Operators check the chart, then rotate the quick-grip torque adjustment to the required setting.
Once the value is dialled in, select forward or reverse depending on whether you're tightening or loosening. Depress the trigger, and the tool is ready to operate.
Configuring a Digital RAD Torque Wrench
RAD's digital torque wrenches remove much of the guesswork. A built-in digital strain gauge displays the applied torque in real time on an LED screen, updating continuously as you tighten.
To set your target torque, use the intuitive plus and minus buttons to dial in the exact value in your preferred unit. Some models, like the E-RAD BLU, feature colour-coded displays – green when you've reached target torque, red for a failed attempt, and blue when the tool is ready. This visual feedback helps operators work confidently and efficiently, especially across large multi-bolt assemblies.
How Do You Set Air Pressure on Pneumatic RAD Tools?
For pneumatic RAD torque wrenches, the torque output is controlled by adjusting the air pressure on the regulator cage assembly. Every RAD pneumatic tool ships with a torque chart that relates specific air pressures to torque outputs:
- Always set air pressure while the tool is running free. A static reading won't give you an accurate setting.
- Never exceed the maximum air pressure shown on the torque chart. Doing so can overload the wrench and cause serious damage.
- Use a minimum ½-inch airline capable of delivering 100 PSI at 30 CFM to ensure adequate airflow.
Does Calibration Affect Your Torque Settings?
Absolutely. Even the most robust RAD torque wrench will experience minor changes in output over time through continuous use, internal component wear and environmental conditions. Regular calibration ensures your tool delivers the torque value it displays – without it, you could be consistently over or under-tightening without realising.
RAD Torque Systems recommends annual calibration and servicing to maintain optimal accuracy and performance. With proper maintenance, these tools can deliver reliable service for well over a decade.
Best Practices for Using Your RAD Torque Gun
- Double-check your setting before every use. Verify the torque wrench matches the exact specification for your fastener.
- Follow a proper tightening sequence, typically a star or cross pattern, to distribute load evenly across the joint.
- Use impact-rated sockets – standard sockets aren't designed to handle the forces RAD tools generate.
- Keep hands clear of the reaction arm during operation. The arm rotates opposite to the output drive and must rest against a solid reaction point.
ALLTORC: Your RAD Torque Partner
ALLTORC has been solving industrial bolting challenges since 1986. As the Master Distributor of RAD Torque products and services in the Western U.S., we carry the full range of pneumatic, battery and electric RAD torque wrenches – backed by in-house and on-site calibration services for tools ranging from 50 inch-lbs to 30,000 ft-lbs.
Whether you need a tooling recommendation, calibration to maintain your settings' accuracy, or a flexible rental for a short-term project, our torque specialists are ready to help. Contact us to discuss your specific bolting application.
