The GLW's commuter has a three-speed Nexus hub, it's a second-hand bike with a year's light use. The hub was shifting reasonably well, but makes a constant, loud clicking noise in at least one gear. Adjustment looks pretty straightforward but after some trial-and-error I can't get it shifting well and running quietly - in fact if anything it's a bit worse. Are there any traps for young players with these hubs? I've had a look through Shimano's tech docs and archive and they only seem to have instructions for eight-speed shifters/hubs, which have a very different assembly at the axle/hub
I've been following the instructions from the bike manual - i.e. select 2nd gear, loosen the allen key bolt holding the assembly to the end of the axle bolt and moving it back/forward to align the yellow mark between the lines on the window. What I've noticed though is that after pushing the assembly toward the hub, the yellow mark seems to stop moving with the assembly, so I'm wondering if something else is wrong - incorrect cable tension or a busted component somewhere. The previous owner never had the bike serviced but didn't ride it much; from the chain and sprocket condition I'm guessing well under 1500Km - from the info I can glean on Shimano's website this shouldn't be an issue for the hub.
