Shimano FC-M665.pdf

SI-0062A-003-00

General Safety Information

Technical Service Instructions

■

Spacer installation method

1 Check whether the width of the bottom bracket shell

is 68 mm or 73 mm.

2 Next, install the adapter while referring to the

illustrations below.

SI-0062A-003

WARNING

• 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 you may fall off the bicycle.

• The two left crank arm mounting bolts should be tightened alternately in stages rather than each bolt being fully tightened all at once. Use a

torque wrench to check that the final tightening torques are within the range of 12 - 14 N·m. Furthermore, after riding approximately 100 km (60

miles), use a torque wrench to re-check the tightening torques. It is also important to periodically check the tightening torques. If the tightening

torques are too weak or if the mounting bolts are not tightened alternately in stages, the left crank arm may come off and the bicycle may fall

over, and serious injury may occur as a result.

• 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.

• If the inner cover is not installed correctly, the axle may rust and become damaged, and the bicycle may fall over and serious injury may occur

as a result.

• Obtain and read the service instructions carefully prior to installing the parts. Loose, worn or damaged parts may cause the bicycle to fall

over and serious injury may occur as a result. We strongly recommend only using genuine Shimano replacement parts.

• Obtain and read the service instructions carefully prior to installing the 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

• Do not use the bashguard for the FC-M810 single chainwheel with the FC-M665 chainwheel, as it will not function correctly. It may cause problems

with gear shifting operation.

• Turn the top adjustment screw to adjust so that the chain does not sit on top of the bash guard.

• Make sure that the chainring combination matches the front chainwheel tooth configuration in the Product specifications table. If other

combinations are used, the distance between the chainrings will be incorrect and the chain might slip off and get caught in between them.

• When the chain is in the position shown in the illustration, the chain may contact the front chainrings or front derailleur

and generate noise. If the noise is a problem, shift the chain onto the next-larger rear sprocket or the one after.

• If the bottom bracket shell is not parallel, gear shifting performance will drop.

• Before riding the bicycle, check that there is no play or looseness in the connection. Also, be sure to retighten the crank

arms and pedals at periodic intervals.

• If a squeaking noise is heard coming from the bottom bracket axle and the left crank arm connector, apply grease to the

connector and then tighten it to the specified torque.

• If you feel any looseness in the bearings, the bottom bracket should be replaced.

• In addition, if pedaling performance does not feel normal, check this once more.

• Do not wash the bottom bracket with high-pressure jets of water.

• Apply grease to the left and right adapters before installing them.

• To ensure the best performance, be sure to use only the specified type of chain. The wide type of chain cannot be used.

• If the chain keeps coming off the chainrings during use, replace the chainrings and the chain.

• 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 an effective way of extending the useful life of the chainrings and the chain.

• Parts are not guaranteed against natural wear or deterioration resulting from normal use.

• For maximum performance we highly recommend Shimano lubricants and maintenance products.

• For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional bicycle dealer.

FC-M665

Spacer

2.5 mm

Band Type

68 mm

73 mm

Specifications

Bracket Type

Model number

FC-M665

Double (FD-M665 / M667 / M665-E)

36-22T

104 mm / 64 mm

170 mm, 175 mm

46.8 mm

68, 73 mm

BC1.37 (68, 73mm)

68 mm

BB mount-type

bracket

73 mm

Applicable front derailleur

Chainwheel tooth combination

Bolt circle diameter

Crank arm length

Chain line

Bottom bracket shell width

Thread dimensions

For bracket type

Install as shown in the

illustration.

Front Derailleur

Front

chainrings

Front Chainwheel

Bolt

Rear

sprockets

Adapter

Be sure to read the service instructions for the Front Drive System in conjunction with these

service instructions.

Tightening torque :

35 - 50 N·m {305 - 435 in. lbs.}

Bash guard

Installation of the Front Chainwheel

Installation of the front derailleur

Adjust and then install the front derailleur as shown in the

illustration. Do not remove the Pro-Set alignment block at this time.

■

Follow the procedure in the figure.

1, 2 Use the special tool TL-FC32 / 36 to install the right adapter (counterclockwise thread) and the left

adapter (clockwise thread).

Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.}

With the flat part of the chain guide outer plate on the inside of the

bash guard as shown in the illustration, adjust the height of the front

derailleur so that the outer edge of the bash guard is within the

specified range on the Pro-Set gauge. Also adjust so that the flat

part of the outer plate is parallel to the inner surface of the bash

guard. Use a 5 mm Allen key to tighten.

■

Chain Device

When installing a BB mount-type chain device to a bicycle, refer to the table below to determine the number of

spacers for the right side. If the thickness of the spacers used is not as given in the table, the front chainwheel may

become loose and fall off, or problems with gear shifting may occur. When installing a BB mount-type chain device

or a ISCG-type chain device to a bicycle, you need to be careful to avoid interference.

Insert the right crank unit.

Set section A of the left crank into the axle of the right crank unit where the groove is wide.

Use the TL-FC16/18 to tighten the cap.

Tightening torque: 0.7 - 1.5 N·m {6 - 13 in. lbs.}

The example in the illustration shows a

BB mount-type chain device.

Push in the stopper plate and check that the plate pin is securely in place, and then tighten the bolt

of the left crank arm. (5 mm Allen key)

Note : Each of the bolts should be evenly and equally tightened to 12 - 14 N·m {106 - 122 in. lbs.}.

Pro-Set alignment block

Outer edge of bash guard

should come within this

range

For chain device thickness of 2.5 mm

When using in combination with the FD-M665-E (2.5 mm chain device)

(A)

Bottom bracket shell width

Model number

TL-FC32

68 mm

73 mm

83 mm

68 mm

73 mm

83 mm

Pro-Set gauge

FC-M810-1 FC-M665

FC-M810-2

Not available

2.5 mm x 1

Not needed

FC-M665 FC-M810-2

Not needed

FC-M665

FC-M815-1 FC-M815-2

2.5 mm x 1

FC-M815-2

Not needed

Wide groove

area

A : 2.5 mm spacer

Install the chain device and the front derailleur

as shown in the illustration.

• If using in combination with an BB mount-type

front derailleur, make sure that the chain

device does not obstruct the BB mount-type

bracket.

For chain device thickness of 5.0 mm

68 mm

BB mount-type

bracket

Bottom bracket shell width

Model number

68 mm

73 mm

83 mm

Chain guide outer plate

FC-M810-1 FC-M665

FC-M810-2

Bash guard

Not needed

Not available

FC-M665

Tightening torque :

5 - 7 N·m {44 - 60 in. lbs.}

Chain Device

FC-M815-1 FC-M815-2

Not needed

When installing the components to carbon frame/handle bar

surfaces, verify with the manufacturer of the carbon frame/parts for

their recommendation on tightening torque in order to prevent over

tightening that can cause damage to the carbon material and/or

under tightening that can cause lack of fixing strength for the

components.

■ Bashguard

Shimano bashguards are designed together with the crank arms to provide strength, rigidity and good shifting performance. Because of this, if

you do not install a bashguard, problems may occur such as the chain may fall off, the chainrings may become bent or the spider may break.

Therefore it is recommended that you always install a bashguard. Similarly, if you use a bashguard which is not manufactured by Shimano,

problems may occur such as poor shifting performance, or the chain may fall off, the chainrings may become bent or the spider may break. Any

such problems will not be covered by your product warranty if you do not install a bashguard or if you install a bashguard which is not

manufactured by Shimano.

TL-FC16

Inner cover

Bottom bracket shell

Plate pin

One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003

Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222

Note :

Set the stopper plate in

the right direction as

shown in illustration.

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

* Service Instructions in further languages are available at :

http://techdocs.shimano.com

Please note: specifications are subject to change for improvement without notice. (English)

Stopper plate

Push up

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