Shimano TL-CN32, TL-CN33 Service Instructions

General Safety Information

6.5mm

7.1mm

5.6mm

One Holland, Irvine, California 92618, U.S.A. Phone: [phone]

6.5mm

7.1mm

5.6mm

WARNING

“Maintenance interval depends on the usage and riding
circumstances. Clean regularly the chain with an appropriate
chaincleaner. Never use alkali based or acid based solvents
such as rust cleaners. If those solvent be used chain might
break and cause serious injury.”

• Use the reinforced connecting pin only for connecting the narrow type of chain.

• 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.

Reinforced connecting pin

10-speed super narrow

chain such as

CN-7901 / 7801 / M980

9-speed super narrow

chain such as

CN-7701 / CN-HG93

8- /7- /6-speed narrow

chain such as

CN-HG50 / CN-HG40

• 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. The chain will be damaged if it is
cut at a place where it has been joined with a
reinforced connecting pin.

• When readjusting the length of the chain, be sure to insert the reinforced
connecting pin from the same side as the chain cutter was inserted (the same
direction as when the chain was cut).

• 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.

• Obtain and read the service instructions carefully prior to installing the parts.
We strongly recommend only using genuine Shimano replacement parts. If
adjustments are not carried out correctly, the chain may come off and this may
cause you to fall off the bicycle which could result in serious injury.

• Read these Technical Service Instructions carefully, and keep them in a safe
place for later reference.

Note

• Black connecting pins pre-attached to the outer link (supplied only to the OEMs)
can be assembled using Shimano chain tools. The assembly method should be
the same as using standard reinforced connecting pins.

with groove (3)

with groove (2)

Black

Silver

Black

Reinforced Connecting Pin

Link Pin

Chain toolChain

TL-CN33
TL-CN32
TL-CN27

Link Pin

Technical Service Instructions

TL-CN33
TL-CN32

WARNING

Protect eyes with safety glasses or
goggles when using this chain
cutter.

■ Note

• The chain cutters have two spare pins inside the
grips. If a pin becomes worn, replace it with one of
the spare pins inside the grip by using the
following procedure.

Pin Replacement Method

The procedure for removing the pin is given
below. To install a pin, carry out the removal
procedure in reverse.

1. Remove the handle from the main body of the

tool.

Main body

Handle

* Service Instructions in further languages are

available at : http://techdocs.shimano.com

SI-1301F-002

HG/UG

Chain Cutter

2. Remove the holder from the handle, and then

take out the pin. Be careful not to let the steel
ball fall out from inside.

Handle

Pin

Holder

3. Remove the stopper screw from the base of the

grip, and then take out a spare pin.

Grip

Stopper screw

2

※The grip contains

two spare pins.

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: [phone]

3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan

Please note: specifications are subject to change for improvement without
notice. (English) © Sep. 2024 by SHIMANO INC. ITP

Spare pin

1