Shimano NEXUS SG-C7002-5 Dealer's Manual page 10

TO ENSURE SAFETY
Be sure to also inform users of the following:
The gears can be shifted while lightly pedaling, but on rare occasions the pawls and ratchet inside the hub
may produce some noise afterwards as part of normal gear shifting operation. In addition, a loud sound may
be temporarily emitted if the gears are shifted while strongly pedaling with E-BIKE, etc., but this is normal.
The internal geared hub is not completely waterproof. Avoid using the hub in places where water might get
inside and do not use high-pressure jets of water to clean the hub, otherwise the internal mechanism may
rust.
The following phenomena occur due to the internal gear-shifting structure and are not a failure of the
internal components.
Phenomenon
A sound is emitted when the pedal turns.
A sound is emitted when the bicycle is pushed
back.
There is a built-in mechanism for facilitating gear
shifting and when the mechanism operates during
gear shifting, noise and vibrations are generated.
Depending on the gear position, gear shifting
may give different feels.
Sound is emitted when pedal rotation is stopped
while riding.
Products are not guaranteed against natural wear and deterioration from normal use and aging.
For maximum performance we highly recommend SHIMANO lubricants and maintenance products.
Coaster brake type
If the wheels are not rotating smoothly, you need to replace or grease the brake shoes.
For installation to the bicycle and maintenance
The cassette joint should only be used with sprockets with 16T to 23T.
Hub type
For roller brake, disc
For coaster brake brake, or V-BRAKE
X
X
X
X
X
10
Gear position
- All speeds other than
1-speed
X Internal 11-speed: 7 to
11-speed
Internal 8-speed: 5 to
8-speed
Internal 5-speed: All
speeds other than
1-speed
X All speeds
X All speeds
- All speeds