Shimano NEXUS SG-C7002-5 Dealer's Manual page 21

Installation/removal
Installing the disc brake rotor
5 screw type (with lock washers)
1. Temporarily secure the disc brake rotor and the disc brake rotor lock washers to the hub as shown in the
figure.
Fit the lock washers so that the marking "TOP" is visible.
Ensure that the hooked part of the lock washer is securely caught on the notch in the disc brake
rotor, then tighten on the lock washer with the disc brake rotor mounting screw. If tightened while
the hooked parts are against the surface of the disc brake rotor, the lock washers and its hooked
parts will become deformed.
Hooked part of lock washer
Notch in disc brake rotor
The lock washers are not reusable. Always use new lock washers when installing the disc brake
rotor.
Use the dedicated disc brake rotor mounting screws.
Lock washer
2 - 4 N·m
Disc brake rotor mounting
screw
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