Shimano NEXUS SG-C7002-5 User manual

(English) DM-CASG004-02
Dealer's Manual
ROAD MTB Trekking
City Touring/
Comfort Bike URBAN SPORT E-BIKE
ALFINE / NEXUS
NEXUS
SG-C7002-5
CS-C7000
SG-C7000-5
SM-C7000-5
ALFINE
SG-S7001-11
SG-S7001-8
Non Series
SG-C6001-8
SG-C6011-8

Contents
IMPORTANT NOTICE........................................................................................ 3
TO ENSURE SAFETY......................................................................................... 4
List of tools to be used................................................................................. 16
Installation/removal ..................................................................................... 17
Installing the sprocket (without chain guard) .................................................17
Installing the sprocket (with chain guard) .......................................................18
Installation of the cassette joint to the hub.....................................................18
Installing the disc brake rotor ...........................................................................20
Installing the INTER M brake to the hub body ................................................22
Installation of the hub to the frame.................................................................23
Installation of the shifting cable.......................................................................29
Adjustment.................................................................................................... 35
Adjusting the cassette joint...............................................................................35
Maintenance.................................................................................................. 37
Disconnecting the shifting cable when removing the rear wheel from the
frame.......................................................................................................................37
Oil maintenance of the internal assembly .......................................................38
2

IMPORTANT NOTICE
For safety, be sure to read this dealer's manual thoroughly before use, and
follow it for correct use.
The following instructions must be observed at all times in order to prevent personal injury and physical damage to
equipment and surroundings.
The instructions are classified according to the degree of danger or damage which may occur if the product is used
incorrectly.
DANGER Failure to follow the instructions will result in death or serious injury.
WARNING Failure to follow the instructions could result in death or serious injury.
CAUTION Failure to follow the instructions could cause personal injury or physical damage to equipment and
surroundings.
This dealer's manual is intended primarily for use by professional bicycle mechanics.
Users who are not professionally trained for bicycle assembly should not attempt to install the components
themselves using the dealer's manuals.
If any part of the information on the manual is unclear to you, do not proceed with the installation. Instead,
contact your place of purchase or a distributor for assistance.
Make sure to read all manuals included with each product.
Do not disassemble or modify the product other than as stated in the information contained in this dealer's
manual.
All manuals and technical documents are accessible online at https://si.shimano.com .
For consumers who do not have easy access to the internet, please contact a SHIMANO distributor or any of
the SHIMANO offices to obtain a hardcopy of the user's manual.
Please observe the appropriate rules and regulations of the country, state or region in which you conduct your
business as a dealer.
IMPORTANT NOTICE
3

TO ENSURE SAFETY
TO ENSURE SAFETY
4

Be sure to also inform users of the following:
Be sure to follow the instructions provided in the manuals when installing the product.
Only use SHIMANO genuine parts. If a component or replacement part is incorrectly assembled or adjusted, it
can lead to component failure and cause the rider to lose control and crash.
Wear approved eye protection while performing maintenance tasks such as replacing components.
Because each bicycle may handle slightly differently depending on the model, be sure to learn the proper
braking technique (including brake lever pressure and bicycle control characteristics) and operation of your
bicycle. Improper use of your bicycle's brake system may result in a loss of control, which could lead to serious
injury due to a fall or collision.
Check that the wheels are fastened securely before riding the bicycle. You may fall or collide and be seriously
injured.
Brake
Do not apply the front brake too strongly. If you do so, the front wheel may lock and the bicycle may fall
forward, and serious injury may result.
Because the required braking distance will be longer during wet weather, reduce your speed and apply the
brakes early and gently. You may fall or collide and be seriously injured.
A wet road surface may cause tires to lose traction; therefore, to avoid this, reduce your speed and apply the
brakes early and gently. If the tires lose traction, you may fall and be seriously injured.
Disc brake rotor
Keep your fingers away from rotating disc brake rotors. Disc brake rotors are sharp enough to severely injure
your fingers if caught within the openings of a disc brake rotor.
Do not touch the calipers or disc brake rotor while riding or immediately after dismounting from the bicycle.
The calipers and disc brake rotor will become hot when the brakes are operated, so you may get burned if you
touch them.
Do not allow any oil or grease to get onto the disc brake rotor and brake pads. Riding the bicycle with oil or
grease on the disc brake rotor and brake pads may prevent the brakes from operating and result in serious
injury due to a fall or collision.
TO ENSURE SAFETY
5

2 mm 0.5 mm
For installation to the bicycle and maintenance
< CT-S500 / CT-S510 >
Check the thickness of the brake pads and do not use them if they have a thickness of 0.5 mm or less. Doing so
may prevent the brakes from operating and result in serious injury.
Do not use the disc brake rotor if it is cracked or deformed. The disc brake rotor may break, and result in
serious injury due to a fall.
Do not use the disc brake rotor if its thickness is 1.5 mm or less. Also do not use it if the aluminum surface
becomes visible. The disc brake rotor may break, and result in serious injury due to a fall.
Coaster brake hub
When using a reversed rear dropout, use a chain adjuster to remove excess slack from the chain.
For information on products that can be installed, check the compatibility information (
https://productinfo.shimano.com ).
When securing the brake arm to the frame, be sure to use an arm clip that matches the size of the chainstay,
and securely tighten them with the clip bolt and clip nut to the specified tightening torque.
Use a lock nut with nylon insert (self-locking nut) as the clip nut. It is recommended that SHIMANO made clip
bolts, clip nuts, and arm clips be used.
If the clip nut comes off the brake arm, or if the clip bolt or arm clip becomes damaged, the brake arm may
rotate on the chainstay and cause the handlebars to jerk suddenly, or the bicycle wheel may lock and result in
serious injury due to a fall or collision.
When installing the hub to the frame, be sure to install the correct non-turn washers to the left and right
sides, and securely tighten the hub nuts to the specified torques. If the non-turn washers are installed on one
side only, or if the hub nuts are not tightened sufficiently, the non-turn washer may fall out, which could
cause the hub axle to rotate and the cassette joint to turn, resulting in the handlebars being accidentally
pulled by the gear shifting cable and an extremely serious accident.
Assemble the wheel with 3x or 4x lacing, and do not spoke the wheel radially.
Otherwise, the spokes or the wheel may get damaged, or noise may occur when braking.
Never use alkali- or acid-based solvents such as rust cleaners. If those solvents are used the chain might break
and cause serious injury.
TO ENSURE SAFETY
6

Clean the chain with an appropriate chain cleaner regularly. Intervals between maintenance depend on the
use and riding circumstances.
Use the reinforced connecting pin only for connecting the narrow-type chain. If connecting pins other than
reinforced connecting pins are used, or if a reinforced connecting pin or tool which is not suitable for that
type of chain is used, sufficient connection force may not be obtained, which could cause the chain to break
or skip.
If it is necessary to readjust the length of the chain due to a change in the number of sprocket teeth, make the
cut at some other place than the place where the chain has been joined using a reinforced connecting pin or
an end pin.
The chain will be damaged if it is cut at a place where it has been joined with a reinforced connecting pin or
an end pin.
Reinforced connecting pin
Link pin
End pin
Check that the tension of the chain is correct and that the chain is not damaged. If the tension is too weak or
the chain is damaged, the chain should be replaced. If this is not done, the chain may break and cause serious
injury.
TO ENSURE SAFETY
7

Be sure to also inform users of the following:
Area around the brake
Shift the shift lever one or two gears at a time. During shifting, reduce the pedal pressure. If you try to force
operation of the shift lever or suddenly shift three or more gears while the pedals are being turned strongly,
your feet may come off the pedals and the bicycle may fall over, which could result in serious injury.
Operating the shift lever to multi-shift to a light gear may also cause the outer casing to spring out of the shift
lever. This does not affect the capabilities of the shift lever because the outer casing returns to the original
position after shifting.
Disc brake type
Do not touch the calipers or disc brake rotor while riding or immediately after dismounting from the bicycle.
The calipers and disc brake rotor will become hot when the brakes are operated, so you may get burned if you
touch them.
Disc brakes have a bed-in period, and the braking force will gradually increase as the bed-in period progresses.
Accidents or falls may occur due to losing control of the bicycle, possibly resulting in serious injury. The same
thing will happen when the brake pads or disc brake rotor are replaced.
Coaster brake type
Do not touch the coaster brake while riding or immediately after dismounting from the bicycle. The coaster
brake will become hot when the brakes are operated, so you may get burned if you touch them.
Do not continuously apply the brakes when riding down long slopes. This will cause the internal brake parts to
become very hot, weakening braking performance, as well as causing a reduction in the amount of brake
grease inside the brake, which can lead to problems such as abnormally sudden braking.
Perform the bed-in procedure and check that the braking force of the coaster brake is correct.
Roller brake type
When the brake is used frequently, do not touch the area around the brake for at least 30 minutes after
riding the bicycle. The area around the brake may become hot.
Do not continuously apply the brakes when riding down long slopes. This will cause the internal brake parts to
become very hot, weakening braking performance, as well as causing a reduction in the amount of brake
TO ENSURE SAFETY
8

grease inside the brake, which can lead to problems such as abnormally sudden braking.
The brake unit and front hub unit should never be disassembled. If it is disassembled, it may no longer work
properly.
TO ENSURE SAFETY
9

Be sure to also inform users of the following:
For installation to the bicycle and maintenance
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
Hub type
Gear position
For coaster brake
For roller brake, disc
brake, or V-BRAKE
A sound is emitted when the pedal turns. X - All speeds other than
1-speed
A sound is emitted when the bicycle is pushed
back.
X X Internal 11-speed: 7 to
11-speed
Internal 8-speed: 5 to
8-speed
Internal 5-speed: All
speeds other than
1-speed
There is a built-in mechanism for facilitating gear
shifting and when the mechanism operates during
gear shifting, noise and vibrations are generated.
X X All speeds
Depending on the gear position, gear shifting
may give different feels.
X X All speeds
Sound is emitted when pedal rotation is stopped
while riding.
X - All speeds
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.
The cassette joint should only be used with sprockets with 16T to 23T.
TO ENSURE SAFETY
10

11-speed (recommended sprocket ratio: 1.8 to 2.0)
FC-S501 number of teeth 45 42 39
SM-GEAR
14 - - -
15 - - -
16 - - -
17 - - -
18 - - -
19 - - -
20 - - X
21 - X X
22 - X -
23 X X -
CS-S500
18 - - -
20 - - -
8-speed (recommended sprocket ratio: 2.0 to 2.25)
FC-S501 number of teeth 45 42 39
SM-GEAR
14 - - -
15 - - -
16 - - -
17 - - -
18 - - X
19 - X X
20 X X -
21 X X -
22 X - -
23 - - -
CS-S500
18 - - X
20 X X -
5-speed (recommended sprocket ratio: 1.3 to 1.5)
The following chainring and sprocket settings are recommended.
TO ENSURE SAFETY
11

Wheel diameter 24 inch 26 inch
CS-C7000 number of teeth 30 27 24 30 27 24
Chainring number of
teeth
30 ------
31 - - X - - X
32 - - X - - X
33 - - X - - X
34 - - X - - X
35 - X X - X X
36 - X X - X X
37 - X X - X X*
38 XXXXXX*
39 XXXXX -
40 X X X* X X -
41 X X X* X X -
42 X X X* X X* -
43 X X - X X* -
44 X X - X - -
45 X X* - X - -
TO ENSURE SAFETY
12

Wheel diameter 27 inch 700C
CS-C7000 number of teeth 30 27 24 30 27 24
Chainring number of
teeth
30 ------
31 - - X - - X
32 - - X - - X
33 - - X - - X
34 - - X - - X
35 - X X - X X*
36 - X X* - X X*
37 - X X* - X -
38 X X - X X -
39 X X - X X* -
40 X X* - X X* -
41 X X* - X X* -
42 X X* - X - -
43 X - - X - -
44 X - - X* - -
45 X* - - X* - -
TO ENSURE SAFETY
13

Wheel diameter 28 inch
CS-C7000 number of teeth 30 27 24
Chainring number of teeth
30 - - -
31 - - X
32 - - X
33 - - X
34 - - X
35 - X X*
36 - X X*
37 - X -
38 X X -
39 X X* -
40 X X* -
41 X - -
42 X - -
43 X - -
44 X* - -
45 X* - -
*Not usable with coaster brake type.
-: Not usable
In order to maintain proper performance, it is recommended that you lubricate the internal unit after riding
1,000 km from the start of use, then after about once every year (or once about every 2,000 km if the bicycle is
used very frequently). If the bicycle is used under harsh conditions, more frequent maintenance is required.
Also, for carrying out maintenance, the use of SHIMANO internal geared hub grease or a lubrication kit is
recommended. If SHIMANO grease or a SHIMANO lubrication kit is not used, problems such as a malfunction
in the shifting unit may occur.
If the wheel becomes stiff and difficult to turn, perform an inspection.
The gears should be periodically washed with a neutral detergent then lubricated. In addition, cleaning the
chain with a neutral detergent and lubricating it can be an effective way of extending the life of the gears
and chain.
If the chain keeps coming off the gears during use, replace the sprockets and chain.
If using a chain tensioner, use the special CS-S500 18T or 20T sprocket with chain guard. Do not use any other
types of sprocket, otherwise the chain may come off the sprockets.
TO ENSURE SAFETY
14

< SG-S7001-11 >
< CT-S500 / CT-S510 >
< CT-S510 >
Supported hubs Applicable sprockets
Supported rear dropout
thickness Supported rear dropout shape
8-speed hub 16 - 23T 4 - 9 mm Vertical
The actual product may differ from the illustration because this manual is
intended mainly to explain the procedures for using the product.
When you perform oil maintenance, use the SG-S700 OIL or TL-S703 maintenance kit.
When you replace the oil, follow the manual for TL-S703. When you replace the seal on the right side, use TL-
S704. If SG-S700 OIL is not used, problems such as an oil leakage and shifting unit malfunction may occur.
Clean the chain tensioner periodically and lubricate all moving parts and pulleys.
If there is a large amount of excess play in the pulleys and an abnormal amount of noise is generated while
riding, replace the pulleys.
Do not disassemble the pulley unit.
If the tension applied is too strong, noise may be generated while riding.
If the chain becomes elongated and excessive looseness occurs, readjust the chain tension.
This product is for single front chainrings only.
Coaster brake type
If the wheel becomes stiff and difficult to turn, replace the brake shoes or lubricate with grease.
Use only the specified grease for the brake shoes and when using a lubrication kit, remove the brake shoes to
avoid contact with the oil.
TO ENSURE SAFETY
15

List of tools to be used
The following tools are needed for installation/removal, adjustment, and maintenance purposes.
Tool
Adjustable wrench
Hexalobular [#25]
Cross head screwdriver [#1]
10 mm spanner
2 mm hexagon wrench
3 mm hexagon wrench
TL-LR10
TL-S700-B
TL-CJ40
List of tools to be used
16

Installation/removal
Installing the sprocket (without chain guard)
Install the right-hand dust cap, then secure the sprocket with the snap ring.
Check the type, and note the orientation of the right-hand dust cap and sprocket when installing them.
Snap ring
Sprocket
Type A Type B
Outward assembling Inward assembling
Type A Type B
Right-hand dust cap
Right-hand dust
cap C
Right-hand dust
cap B
Note the orientation of the sprocket and right-hand dust cap.
Type
Applicable sprockets
Outward assembling Inward assembling
A16T-23T 20T-23T
B16T-23T
INTER-5E 24T, 27T, 30T 24T, 27T, 30T
Type A
If the sprocket is an inward assembling sprocket with 19T or fewer or for belt drive type, right-hand
dust cap A will come into contact with the chain or pulley so type B should be used instead.
Type B
If the sprocket is an inward assembling sprocket with 16T and 3 mm teeth or for belt drive type,
remove right-hand dust cap B before use.
1.
Installation/removal
Installing the sprocket (without chain guard)
17

Installing the sprocket (with chain guard)
Installation of the cassette joint to the hub
Install the chain guard and right-hand dust cap.
Note the orientation of the right-hand dust cap when installing it.
Right-hand dust cap B
Chain guard
1.
Install the sprocket with the guard plate facing outward, and secure it in place with the snap ring.
Guard plate
Snap ring
2.
Install the driver cap.
Note the orientation of the driver cap.
Driver side
Driver
Driver cap
Driver side cap
Snap ring
Sprocket
Sprocket
1.
Installation/removal
Installing the sprocket (with chain guard)
18

Turn the pulley to align the mark (red or yellow) of the cassette joint, and install to the hub body.
Should be
aligned
Cassette joint
Pulley
Bracket
Cassette joint mark
2.
Turn the cassette joint mounting ring 45° clockwise to secure it.
Cassette joint mark
Cassette joint mounting ring
Pulley
Hold down the cassette joint bracket securely when performing work.
3.
Installation/removal
Installation of the cassette joint to the hub
19

Installing the disc brake rotor
CENTER LOCK type
Wear gloves when handling the disc brake rotor. Failure to do so may result in cuts to your hands.
Secure the disc brake rotor as shown in the figure.
Disc brake rotor
Disc brake rotor
installation ring
40 N·m
1.
Installation/removal
Installing the disc brake rotor
20