Look at the neck to see if this is the right amount of adjustment. Insert the Allen wrench into the truss rod adjuster (which is located on the headstock right where the neck begins at the nut) and give the wrench a quarter turn to the right. If you don't have that, then a standard 1.3 to 1.5 mm Allen wrench will do. If it is bowed, then use the Allen wrench (truss rod adjuster) that came with the bass. If the neck is straight, and there are no visible bows in it, you can move on to the next step. The neck typically bows downward in the direction away from the strings. Bowing of the neck is a common occurrence to basses and happens with change of weather, increased playing or the manner in which the bass is stored. Look down the fretboard of the bass and see if you can spot any place on the neck where the bass is bowing a little bit. Hold the bass so that the headstock is facing your eyes and the body of the bass is either on the floor or resting on a table. You will hear an immediate improvement in sound quality and feel an immediate difference in the bass playability.ДЄdjust the truss rod. Tune all of the strings and then the play the bass a bit to allow the strings to rid any unwanted tension. Do this with each of the strings until it is entirely re-strung. Wrap this around the tuning peg and tighten it until it is in tune in accordance to the note of the string. You will notice that the string gets smaller up there, so cut it right around where it gets thick. Cut the tip of the string about 4 inches from the top using your wire cutters. Once you complete this, insert the new string through the saddle and string it up through the hole in the tuning peg-doing the opposite of the removal process. Pull it out of the hole through the saddle so that it is entirely removed. Once the string is loose enough, you should be able to pull it out of the tuning peg slot on the head stock. It is done in this order so that the intonation of the bass doesn't get skewed in the process. Do this beginning with the highest string-the G string and work you way up to the lowest string-the E string. Remove the old strings by loosening the tuning pegs on the headstock of the bass.

51 p bass bridge