instructions? hah! i squeeze the toothpaste from the center, and sometimes when i wash my
hair, i lather and rinse but skip the repeat. i'm still alive.

got about 5000 km on the chain with no problems. stretched to the limit and replaced with
another HG-73 (4000-km tour myanmar/thailand/malaysia coming up). the new chain came
only with a pin partially inserted, requiring the chain tool to install. it did not have the
non-reuseable shimano kwickie link as with the last one.

i cleaned the chain enough to inspect. with flashlight and magnifying glass, i was unable to
pick out the pin that i had re-inserted 5000 km's back. i'm convinced that unless you're really
doing something incredibly strange, a re-pinned chain 'probably' won't break. i think the
ones that have broken were because the pin was carelessly replaced, and the warning is
just lawyer-speak.

that being said.....in future, if i install a chain that i expect i'll need to remove temporarily,
i'll use a quickie link instead of re-using the pin.....just in case.