Effective and safe use of paving breakers requires adherence to specific operational guidelines. This section outlines the correct procedures for handling, operating, and maintaining these tools during use, ensuring optimal performance and longevity. 
 

Safety First:

Prior to using any tool, the operator must read and understand the operating and safety instructions provided with each tool. Always wear personal protective equipment on the job site, including safety shoes, hard hats, gloves, safety goggles, and ear protection. If there are any noise restrictions on the job site, we also recommend the use of APT mufflers designed to reduce the noise levels of our tools. 

Safety goes beyond just the operator: ensure the crew, bystanders, visitors, and anybody near the tool is equipped with the correct PPE equipment and aware the tool is being used.  
 

Initial Preparation:

Before starting your work, grip the tool handles firmly. Ensure the chisel is in contact with the workpiece. This setup prevents slipping and misalignment. 
 

Tool Placement & Activation:

Always keep the tool against the work surface to prevent recoil and potential injuries. To actuate the tool, depress the throttle lever. Begin work only when the chisel is securely positioned against the workpiece. 
 

During Operation:

Operate the tool at full throttle to achieve the highest impact, which is typically sufficient for most materials. A 10 to 20-second burst is recommended. If the workpiece breaks in less than 10 seconds, the tool might be overpowered for the task. In such cases, switching to a lighter tool could fatigue the operator less and avoid damage or safety issues. 

Conversely, if breaking the workpiece takes more than 20 seconds, consider using a tool from a higher-weight class to ensure efficiency and avoid overstressing the tool.  
 

Tool Handling & Repositioning:

Do not lean on or push down on the tool. The tool’s own weight should be adequate for the task. Focus on maintaining correct positioning and guidance of the tool rather than applying additional force. 

When you need to adjust the tool’s position, release the throttle lever to let the tool deactivate, and let the tool decompress before moving the chisel. This step is crucial to prevent unintended operation potentially causing operator injury or internal damage to the tool. 
 

Concluding Operations:

Once your task is completed, turn off the air supply using a shut-off valve or switch. To release any trapped air inside the tool and the hose, point the chisel at the work surface and operate the throttle lever with the air supply shut off. Only then should you proceed to remove the chisel tool. 
 

Proper Handling & Storage:

Do not move tools while connected to the air supply, refer to shutdown procedure first. Seek assistance on moving tools and loading vehicles, as some models are heavy. Check tools in same method as you would prior to use. Report any issues to your supervision should you have any concerns. 

Air Pressure:

The recommended air requirement for the operation of APT tools is 90 psi (6.2 bar). Lower air pressure will decrease power, too high a pressure will increase unwanted stresses in the tool. For proper CFM ratings, please refer to the specification charts shown for each tool in this catalog. 

Hose Size:

APT recommends the use of at least 1⁄2” inside diameter or larger hoses to assure sufficient air flow to the tool. For portable compressor hose and longer lengths, 3⁄4 “hose is recommended. Keep the overall length of the hose to a minimum to prevent pressure loss at the tool. 
 

Connecting Hoses:

Hoses should be rated for a minimum of 250 psi (17.2 bar). Before connecting the air hose to the tool, check the tool inlet connector to be sure it is clean and free of dirt or debris. Keeping dirt and debris from entering the tool will assure long and satisfactory operation.

Conclusion

Following proper safety, handling, and maintenance practices is key to ensuring optimal performance and longevity of paving breakers. By adhering to these guidelines—like correct tool positioning, air pressure management, and safe storage—you can maximize efficiency, reduce downtime, and keep your tools operating smoothly and safely on every job.