
16
Lower Post Removal
Remove the seatpost from the vise. Clamp the lower post into the
bench vise and Park Tool® AV-5 soft jaw vise inserts, with the post head
facing up.
Use a 34 mm, or adjustable, open end wrench to unthread the seatpost
top cap. Slide the top cap up to the post head.
Pull the upper post assembly up and remove it from the lower post.
Remove the lower post tube from the vise. Clean the inside and
outside of the lower post with isopropyl alcohol and a clean rag, then
set it aside.
Clamp the upper post head into the vise with
flat
soft jaws.
Remove the three brass keys from the upper post.
On
page 9
, record the number of lines, which indicate key size, marked
on the brass keys for future reference. If
worn
, the brass keys must be
replaced with new brass keys of the same size.
Clean the upper post and keys with isopropyl alcohol and a clean rag.
To continue with the
50 Hour Service
proceed to
Brass Keys
Installation
.
5
34 mm
6
7
Example: 3 lines = size 3 key