| No. | Symptom | Problems | Solutions |
| 1.1 | Air Leak | Air leak in the cylinder cap when tools don't work | 1.Loose head valve piston seal or o-rings . | Check and replace the head valve piston set |
| 2.Worn or damaged o-ring or cylinder cap gasket under cylinder cap | Check and replace o-ring or cylinder cap gasket under the cylinder cap |
| 1.2 | Air leak in Trigger area when tools don't work | 1.Damaged o-ring in trigger valve | Check and replace o-ring |
| 2.Damaged o-ring in trigger valve stem | Check and replace o-ring |
| 3.Dirt in the trigger valve | Check and clean the trigger valve |
| 1.3 | Air leak in cylinder cap when tools are working | 1.Damaged head valve piston o-rings | Check and replace o-rings |
| 2.Damaged seal under cylinder cap | Check and replace seal |
| 1.4 | Air leak in nose when tools are working | 1.Worn or damaged bumper | Check and replace bumper |
| 2.Loose driver(piston unit) thread | Check and replace driver(piston unit) |
| 1.5 | Air leak in Trigger area when tools are working | 1.Worn or damaged trigger valve head | Check and replace trigger valve head |
| 2.Damaged head valve piston o-rings | Check and replace head valve piston o-rings |
| 2 | Failed to get driver(piston unit) back to the correct position completely. | 1.The driver(piston unit) is not straight or the driver guide(nose) is wrong assembled. | Straighten the driver(piston unit) or verify driver guide(nose) and magazine |
| 2.Worn or damaged nozzle | Check and replace nozzle |
| 3.The space between piston o-ring and cylinder is too tight. | Check if the cylinder is adequate lubrication or replace the o-ring on the piston. |
| 3 | Work weakly and sluggishly | 1. Worn or damaged piston o-ring | Check and replace piston o-ring |
| 2.Inadequate lubrication for head valve piston o-rings or too tight head valve piston o-rings | Place 2 or 6 drops of oil on o-rings or replace head valve piston o-rings |
| 3.Dirt in the nozzle | Check and clean the nozzle |
| 4 | Tool jams frequently | 1.Damaged or Worn driver (piston unit) | Check and replace driver (piston unit) |
| 2.Damaged or Worn driver guide (nose) | Check and replace driver guide (nose) |
| 3.Driver guide cover is bent,so the space between driver guide cover and driver guide is too big | Check and replace driver guide cover |
| 5 | Nail can not be shot | 1. Driver (piston unit) can't return to the correct position. | Refer to no. 1 Symptom |
| 2.Driver guide(nose) can not match magazine well | Check and correct the position between driver guide(nose) and magazine |
| 3.Worn or damaged nail pusher compression spring | Check and replace nail pusher compression spring |
Complaint
