
23
Upper Post Disassembly
4 0 0 H o u r S e r v i c e
U p p e r P o s t D i s a s s e m b l y
Clamp the upper post head into the vise with
flat
soft jaws.
Remove the top cap assembly from the upper post and discard the top
cap assembly.
Insert a 1.5 mm hex wrench into one of the cross holes in the IFP tube.
Use pliers to carefully pull the IFP tube out of the upper post and
remove it from the post. Use your hand to guide the IFP tube straight
out of the upper post using care not to scratch the inside of the upper
post with the hex wrench.
NOTICE
Do not scratch the inner surface of the upper post with the hex wrench.
Surface Scratches can cause leaks and reduce performance of the
seatpost.
Use isopropyl alcohol and a rag to clean the inside and outside of the
IFP tube.
Remove the internal floating piston (IFP) from the upper post. Insert
seven to nine plastic cable ties, one at a time, into the upper post and
through the center of the IFP.
Pull the cable ties out of the upper post and remove the IFP. Discard
the IFP.
Spray isopropyl alcohol into the upper post, then pour it out. Set the
upper post aside to dry. Do not reassemble the seatpost until the inside
of the upper post is dry.
1
2
1.5 mm hex and pliers
3
Plastic cable ties