1) Dismantle the snap spring (1), and take down the HP-30 specification potentiometer sliding
plate (2).
2) Dismantle the hexagon socket set screw with flat point (4), and take down the HP-30 holder
sliding block (3).
3) Pull out the HP-30 holder (9) from the mounting hole of the HP-30 middle plate (7).
Note: When dismantling the hexagon socket set screw with flat point (4), press and hold the
holder sliding block (3) to prevent it from being ejected by the holder pressure spring (5).