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General Safety Information
WARNING
• Use neutral detergent to clean the chain. Do not use alkali-based or acid based detergent such as rust cleaners as it may
result in damage and/or failure of the chain.
• Use the reinforced connecting pin only for connecting the narrow type of chain.
• There are two different types of reinforced connecting pins available. Be sure to check the table below before selecting
which pin to use. If connecting pins other than reinforced connecting pins are used, or if a reinforced connecting pin or tool
which is not suitable for the type of chain is used, sufficient connection force may not be obtained, which could cause the
chain to break or fall off.
Chain
Reinforced connecting pin
Chain tool
9-speed super narrow
chain such as
TL-CN32 / TL-CN23
Silver
CN-7701 / CN-HG93
6.5mm
8- / 7- / 6-speed narrow
chain such as
Black
TL-CN32 / TL-CN23
CN-HG50 / CN-IG51
7.1mm
• If it is necessary to adjust 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.
• Be careful not to let the cuffs of your clothes get caught in the chain while riding, otherwise
you may fall off the bicycle.
• 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.
• Check that there are no cracks in the crank arms before riding the bicycle. If there are any cracks, the crank arm may break
and you may fall off the bicycle.
• Obtain and read the service instructions carefully prior to installing the parts. Loose, worn, or damaged parts may cause
injury to the rider.
We strongly recommend only using genuine Shimano replacement parts.
• Read these Technical Service Instructions carefully, and keep them in a safe place for later reference.
Note
• The reinforced connecting pins cannot be used with the UG chain, otherwise the connections will not move properly and
noise will occur.
• Apply grease to the thread section of the bottom bracket and to the inside thread of the adapter before installing the bottom
bracket.
• In addition, if pedaling performance does not feel normal, check this once more.
• Check that there is no looseness in any joints or connections before riding the bicycle. (BB-FC, FC-PD)
• Do not wash the bottom bracket with high-pressure jets of water.
• If you feel any looseness in the bottom bracket axle, the bottom bracket should be replaced.
• If gear shifting operations do not feel smooth, wash the derailleur and lubricate all moving parts.
• If the amount of looseness in the links is so great that adjustment is not possible, you should replace the derailleur.
• You should periodically wash the chainrings in a neutral detergent and then lubricate them again. In addition, cleaning the
chain with neutral detergent and lubricating it can be a effective way of extending the useful life of the chainrings and the
chain.
• If the chain keeps coming off the chainrings during use, replace the chainrings and the chain.
• Use an outer casing which still has some length to spare even when the handlebars are turned all the way to both sides.
Furthermore, check that the shifting lever does not touch the bicycle frame when the handlebars are turned all the way.
• Grease the inner cable and the inside of the outer casing before use to ensure that they slide properly.
• Operation of the levers related to gear shifting should be made only when the front chainwheel is turning.
• For smooth operation, use the specified outer casing and bottom bracket cable guide.
• To ensure the best performance, be sure to use only the specified type of chain. The wide type chain cannot be used.
• For maximum performance we highly recommend Shimano lubricants and maintenance products.
• Parts are not guaranteed against natural wear or deterioration resulting from normal use.
• For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional
bicycle dealer.
Technical Service Instructions
Front Drive System
In order to realize the best performance, we recommend that the following combination be used.
Series
Tourney
7 - gears
Right
Gears
Left
3 - gears
Shifting lever
Left
SL-RS43-L
Outer casing
SIS40
FD-C051/FD-TY30
Front derailleur
FD-C050/FD-TY10
FC-TX70/TC-TX71/FC-TY33
Front chainwheel
FC-TS38A/FC-TY40/FC-TS32
Bottom bracket
BB-UN26
Chain
CN-HG50
Bottom bracket cable guide
SM-SP18/BT18
This service instruction explains how to use
and maintain the Shimano bicycle parts
which have been used on your new bicycle.
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
For any questions regarding your bicycle or
other matters which are not related to
Shimano parts, please contact the place of
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222
purchase or the bicycle manufacturer.
Please note: specifications are subject to change for improvement without notice. (English)
© Apr. 2005 by Shimano Inc. XBC SZK Printed in Singapore
Specifications
Shifting lever
Model number
Gears
Front Derailleur
Model number
FD-C051/C050
Front derailleur installation
band diameter (Normal type)
Front derailleur installation
band diameter (Top route type)
a
Chainstay angle (
)
Reinforced Connecting Pin
Front chainwheel
Model number
Front chainwheel tooth combination
End Pin
Link Pin
Crank arm length
Pedal thread dimensions
Bottom bracket cup thread dimensions
Applicable front derailleur
Bottom Bracket
Type
Chain line
Spindle length
Triple
47.5mm
122.5mm
* FC-TY40 : 47.5mm ––– YL117
Mounting the shifting lever
Install the brake lever in a position where it will not obstruct brake
operation.
Do not use in a combination which causes brake operation to be
obstructed.
Leave a gap of 0.5 mm between the Revo-shift
lever and the half grip.
Half grip
Handlebar
3 mm Allen Key
Tightening torque:
2 N·m {18 in. lbs.}
SI-6KS0A
Installation of the bottom bracket
Install using the special tool TL-UN74.
First install the main body, then the adapter.
Tightening torque:
50 - 70 N·m {435 - 608 in. lbs.}
6 - gears
3 - gears
SL-RS43-L
SIS40
Installation of the front chainwheel
Use the cotterless crank extractor (TL-FC10) to install the
front chainwheel.
BB-UN26
CN-HG50
SM-SP18/BT18
Tightening torque:
35 - 50 N·m {305 - 435 in. lbs.}
3-77 Oimatsu-cho, Sakai, Osaka 590-8577, Japan
Installation of the front derailleur
1. < FD-C051 / FD-C050 / FD-TY30 / FD-TY10 >
Adjust and then install the front derailleur as shown in the illustration. Do not
SL-RS43-L
remove the Pro-Set alignment block at this time.
SIS 3 - gears
FD-TY30
FD-TY10
S, M, L
S
S, M
S, M, L
S, M
Chainstay angle
63°- 66°
66°-69°
66°-69°
66°- 69°
2.
The level section of the chain guide outer plate should be
directly above and parallel to the largest chainring.
3.
Secure using a 9 mm spanner (TY30, TY10) or a 5 mm
FC-TX71
FC-TY33
FC-TS38A
FC-TX70
FC-TY40
FC-TS32
Allen key (C051, C050).
48T-38T-28T
42T-34T-24T
170mm
170mm
BC 9/16" X 20 T.P.I. (English thread)
BC 9/16" X 20 T.P.I. (English thread)
BC 1.37" X 24 T.P.I. (68, 73 mm)
BC 1.37" X 24 T.P.I. (68, 73 mm)
FD-C051
FD-C051/TY30 FD-C051/TY30
FD-C050
FD-C050/TY10 FD-C050/TY10
Chain length
Shell width
Stamped marking
Thread dimensions
< GS >
68mm
D-NL
BC1.37 X 24 T.P.I.
Add 2 links (with the chain on both
the largest sprocket and the largest
chainring)
Gear shifting operation
Adjustment
Pedaling becomes
Be sure to follow the sequence described below.
heavier
1. Low adjustment
< FD-C051 / FD-C050 / FD-TY30 / FD-TY10 >
First remove the Pro-Set alignment block. Next,
set so that the clearance between the chain guide
inner plate and the chain is 0 - 0.5 mm.
Pedaling becomes
lighter
Largest
sprocket
2. Connection and securing of cable
While firmly pulling the cable, tighten the fixing bolt with a 9 mm spanner (TY30,
TY10) or a 5 mm Allen key (C051, C050) to secure the cable.
Front Chainwheel
Inserting the inner cable
Insert the inner cable into the outer casing from the end with the marking on it.
Apply grease from the end with the marking in order to maintain
cable operating efficiency.
Adapter
Bottom Bracket
Cutting the outer casing
When cutting the outer casing, cut the opposite end to the
end with the marking. After cutting the outer casing, make
the end round so that the inside of the hole has a uniform
diameter.
Attach the same outer end cap to the
cut end of the outer casing.
3. Adjustment of cable tension
After taking up the initial slack in the cable, re-secure to the front derailleur as
shown in the illustration.
Securely tighten
Gear teeth should
come within this
range
1 - 3 mm
Pro-Set gauge
Pro-Set alignment block
4. Top adjustment
Chainwheel
(largest chainring)
Chain guide
Tightening torque:
5 - 7 N·m {44 - 60 in. lbs.}
5. Adjustment of the intermediate chainring
< SS >
Smallest
Largest
sprocket
chainring
Largest
Largest
Chain
chainring
chainring
Guide pulley
Tension pulley
Right angle to the ground
Chain
6. Troubleshooting chart
FD-C051 / C050
FD-TY30 / TY10
Pro-Set alignment block
Low
Chain position
adjustment
screw
Smallest
chainring
Chain guide inner
plate
Chain
Tightening torque: 5 - 7 N·m {44 - 60 in. lbs.}
Marking
Replace the inner cable by carrying out steps
to
Outer end cap
Normal type
Top route type
Pull
Pull
Cut off the excess length of inner cable and then install the inner end cap.
< FD-C051 / FD-C050 >
Note:
Pass the cable through
as shown in the
illustration.
5 mm allen key
Wire fixing bolt
Top route type
Normal type
FD-TY30 / TY10
Top adjustment
Set so that the clearance between
screw
the chain guide outer plate and the
chain is 0 - 0.5 mm.
Chain guide
Chain position
outer plate
Smallest
Largest
sprocket
chainring
Chain
FD-C051 / C050
Set the chain onto the largest sprocket, and at the front, move the chain from
the largest chainring to the intermediate chainring. Adjust using the cable
adjusting bolt so that the clearance between the chain guide inner plate and
the chain is 0 - 0.5 mm.
Chain position
Largest
Intermediate
sprocket
chainring
Chain guide
Outer casing
inner plate
adjustment barrel
Chain
After completion of steps 1 - 5, move the shifting lever to check the
shifting. (This also applies if shifting becomes difficult during use.)
Tighten the top adjustment screw
If the chain falls to the crank side
clockwise (about 1/4 turn).
If shifting is difficult from the
Loosen the top adjustment screw
intermediate chainring to the largest
counterclockwise (about 1/8 turn).
chainring
If shifting is difficult from the
Loosen the low adjustment screw
intermediate chainring to the
counterclockwise (about 1/4 turn).
smallest chainring
If there is interference between the
Tighten the top adjustment screw
chain and the front derailleur inner
clockwise (about 1/8 turn).
plate at the largest chainring
If there is interference between the
Loosen the top adjustment screw
chain and the front derailleur outer
counterclockwise (about 1/8 turn).
plate at the largest chainring
If the intermediate chainring is
Loosen the outer casing adjustment
skipped when shifting from the
barrel counterclockwise (1 or 2 turns).
largest chainring
If there is interference between the
chain and front derailleur inner plate
when the rear sprocket is shifted to
the largest sprocket when the
Tighten the outer casing adjustment
chainwheel is at the intermediate
barrel clockwise (1 or 2 turns).
chainring position.
If shifting is difficult from the largest
chainring to the intermediate
chainring
If the chain falls to the bottom
Tighten the low adjustment screw
bracket side
clockwise (about 1/2 turn).
Replacing the inner cable
➀
➂
as shown in the illustrations.
➀
➁
➂
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