Slacken or remove the strings and lift off the Adjusto-matic bridge
Unscrew the bridge mounts.
Screw in the new bridge mounting studs with the domed end facing upwards using the supplied Allen wrench .
Adjust the studs so that they are approximately 5mm below the surface, this is only an initial setting and is not critical.
Place the Staytrem bridge on the top of the mounting studs.
Refit and tighten the strings but do not tune the guitar yet.
Move the bridge so that the base plate is parallel with the face of the guitar body, in this position it will be free move with the action of the tremolo equally in either direction.
Using the supplied Allen wrench adjust the height of the bridge to obtain the correct action. Pass the Allen wrench through the holes at each end of the bridge to engage with the hexagon in the mounting studs. Turning clockwise will lower the bridge and turning anti-clockwise will raise the bridge.
Finally tune the guitar and set the intonation.