How to attach the old neck part (60RP-F03WP-21) and new neck part (60RP-F04WP-21)
to the head for the 47cm/55m/60cm body
60RP-F03WP-21 neck part

1. Insert the neck part into the hole of the head.

2. Push it into the head hard. 3. This is the picture of inside of head looks like.
4. Put the ring part around the top of the neck part. 4. Using needle-nosed pliers, pull the top of neck part and turn it around 90 degrees. 5. The top part became a lock to keep the head still.
60RP-F04WP-21 neck part
For attaching it into the head, just push it in very hard. When disataching it, please use your hair dryier to warm the neck so that it will be easy to come out.