Shimano ALFINE S7051 Series Dealer's Manual page 88

MAINTENANCE
For internal 8-speed (oil maintenance kit: Y00298010)
6
After oil maintenance, it is recommended that you apply Grease (Y04130100) to the ball retainers, snap ring, brake shoe, and pinion gears.
The illustration shows an example.
Reassemble the hub.
Ball retainer
NOTICE
Pinion gears
Brake shoe
Snap ring
88
TECH TIPS
<Maintenance oil>
•
The maintenance oil is reusable.
Refill it as needed.
•
Store it with the lid closed after use.
Ball retainer