Shimano Nexus/Alfine 3, 4-, 7-, 8-, and 11-Speed Technical Information
I'm going to oil bathe this shimano nexus 7.. the proffesional bike repair person I asked to do this for me sprayed wd40 in it, €80 later I decided to just buy
Shimano Nexus 8-speed Bicycle Hub Service Manual-Page 12
SERVICE MANUAL SHIMANO NEXUS 7-SPEED HUB - Avantum
A simple guide to adjusting a Shimano Nexus hub gear | As Easy As Riding A Bike