Twist the first spit washer to put around the cable and carefully ease it back into the threaded bore, the slide the grommet over the cable (it can be split down the side if neccesary) and push the rubber grommet in on top the first washer , then twist and put the second washer in and then the gland nut to compress all this , sometimes the threads are worn and you may need to trim the rubber insert with a razor blade , Call if you need help Tom