A device for clearing pipe blockage includes: pumping means for compressing air by pumping and having an outlet for discharging compressed air out; and an inflatable balloon mounted at the outlet and expanding by air discharged through the outlet. The apparatus includes an image analyzer configured to receive an image from camera and analyze the image to determine if a leak on the equipment is present by comparing a color channel of the image with a reference and the image analyzer having an output port for delivering a notification upon the image analyzer determining that a leak is present on the equipment. The pin has sections having different diameters, so that the add-on shaft is aligned coaxially with the motor shaft and fixed in the blind hole by an interference fit, but adhesive applied onto the pin is not wiped off during the joining operation.