What's with the nail gun pulling nails repeatedly?

There are many reasons for this phenomenon.

1, the most common thing is that the claw inside the gun mouth is slippery because it has been used for too long and needs to be replaced. Claw piece is consumable, so you can contact the supplier to buy it, or you can disassemble the gun head and replace it yourself.

2. The nail gun is used for a long time, and the hydraulic oil is consumed or there is oil leakage, resulting in insufficient pressure; (For safety reasons, self-repair and replacement are not recommended.)

3. If it was ok before, it will be like this if the product is changed. Please check whether the rivet does not match the workpiece. The workpiece is thin but the rivet cap is too long, and the rivet gun has insufficient stroke. (In this case, nails with shorter heads should be replaced. )