Eric has a good answer but I'd like to ask a few questions--- How long have you had this? Have you used air tool oil every time you go to use it? Are you using a lot of hose or long distance from air compressor? Are your hoses i good shape? Does it respond the same at the other ports??
Loss of power in an impact wrench can have many causes (worn/broken impact mechanism, worn motor parts, dirty motor, etc.). It will need to be disassembled and serviced.
Answers & Comments
Eric has a good answer but I'd like to ask a few questions---
How long have you had this?
Have you used air tool oil every time you go to use it?
Are you using a lot of hose or long distance from air compressor?
Are your hoses i good shape?
Does it respond the same at the other ports??
Loss of power in an impact wrench can have many causes (worn/broken impact mechanism, worn motor parts, dirty motor, etc.). It will need to be disassembled and serviced.