Shimano NEXUS SG-C7002-5 Dealer's Manual page 26

Installation/removal
Installation of the hub to the frame
3. Secure with the cap nut.
In the case of INTER M brake type (brake unit fixing washer)
(1) Check that the INTER M brake is securely installed with the brake unit fixing washer.
(2) Attach the brake arm to the chainstay with the arm clip.
(3) Temporarily fix the clip bolt and clip nut by lightly tightening them.
(4) Take up slack in the chain and secure the wheel to the frame with the cap nut.
(5) Attach the brake arm with the arm clip.
(6) Securely install with the cap nut.
Arm clip
Clip bolt (M6 × 16 mm)
Clip nut
In the case of INTER M brake type (brake unit fixing nut)
(1) Attach the brake arm to the chainstay with the arm clip.
(2) Temporarily fix the clip bolt and clip nut by lightly tightening them.
(3) Take up slack in the chain, align the wheel with the frame center, and temporarily secure it with the cap
nut.
(4) Slightly loosen the cap nut, and fully tighten the brake unit fixing nut.
(5) Take up slack in the chain, align the wheel with the frame center, and secure it with the cap nut.
Brake unit fixing washer
30 - 45 N·m
Cap nut
2 - 3 N·m
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