If you’re experiencing issues with your Bostitch roofing nailer shooting multiple nails with one trigger pull, this troubleshooting guide will help you understand the problem and its potential solutions. Whether you’re a professional roofer or a DIY enthusiast, resolving this issue is essential for a safe and efficient roofing project.

Understanding the Problem

A Bostitch roofing nailer is designed to drive one nail at a time with each trigger pull. When it starts shooting multiple nails simultaneously, it can compromise the integrity of your roof and pose safety risks. The problem could be due to various factors, including user error, wear and tear, or internal malfunctions.

Troubleshooting Steps

1. User Error:

   Before exploring more complex issues, ensure that user error isn’t the cause. Make sure you’re using the nail gun correctly:
2. Maintain a firm, steady grip on the nailer.
3. Apply consistent pressure on the trigger without any double taps or unintended triggers.
4. Allow the gun to reset fully between trigger pulls.

5. Nail Size and Collation:

   Check that you’re using the correct nail size and collation for your nail gun. Incompatible nails can lead to double firing. The Bostitch RN46-1, for instance, is designed to accommodate nails ranging from 3/4" to 1-3/4" with wire-weld and plastic collation.

6. Nail Condition:

   Examine the nails themselves. Bent or damaged nails can cause feeding issues, leading to double firing. Ensure that the nails are straight and in good condition before loading them into the magazine.

7. Air Pressure Adjustment:

   Improper air pressure settings can affect the nail gun’s performance. Make sure the air pressure is within the recommended range for your specific nail gun model. Consult your nailer’s manual for the appropriate settings.

8. Depth Adjustment:

   Incorrect depth adjustment may cause nails to be driven too far, leading to multiple nails firing. Adjust the depth control on your nail gun to ensure the nails are driven to the correct depth in the roofing material.

9. Maintenance and Cleaning:

   Regular maintenance is crucial for the smooth operation of your roofing nailer. Clean the nail gun, lubricate moving parts, and inspect for wear and tear. Neglecting maintenance can lead to feeding problems and double firing.

10. Worn or Damaged Parts:

    Over time, parts of the nail gun can wear out or become damaged. Inspect the trigger mechanism, the driver blade, and the magazine for signs of wear. If you notice any damaged components, replace them as needed.

11. Jam Clearing:

    If you encounter nail jams, address them promptly. Jammed nails can interfere with the nail feed mechanism, leading to double firing. Refer to your nail gun’s manual for instructions on clearing jams.

12. Professional Inspection:

    If you’ve tried the above steps and the problem persists, consider having your roofing nailer inspected by a professional technician. They can diagnose and repair internal malfunctions that may be causing the double firing issue.

Conclusion

A Bostitch roofing nailer shooting multiple nails with one trigger pull is a concerning issue that needs prompt attention. By following these troubleshooting steps, you can identify and resolve the problem, ensuring the safety and effectiveness of your roofing project. Whether it’s a simple user error or a more complex internal issue, taking the time to address the problem will lead to better roofing results.