Originally Posted by
Winfried
Hello,
Out of curiosity, what is the
Shimano alignment tool TL-8S30 for?
Is it required to put a Nexus/Alfine gear hub back together, or just nice to have?
Thank you.
the purpose of that tool is to phase the planetary gears. The Nexus/Alfine gear carrier sub assembly has the sun and planetary gears in constant mesh, so unless you disassemble the gear carrier that tool is not necessary.
even if you do take it apart to that extent it is possible to phase the gears without the tool. This video explains the concept behind it although it is a totally different hub.