XT M750 Front Drive System - установка и настройка передней части трансмиссии

XT M750 Front Drive System - установка и настройка передней части трансмиссии
Technical Service Instructions
SI-6K9FC
Front Drive System
General Safety Information
WARNING
• Use neutral detergent to clean the chain. Do not use alkaliReinforced
Chain
Chain tool
based or acid based detergent such as rust cleaners as it may
connecting pin
result in damage and/or failure of the chain.
9-speed super narrow
• Use the reinforced connecting pin only for connecting the
Silver
chain such as
TL-CN31 / TL-CN22
narrow type of chain.
6.5mm
CN-7701 / CN-HG93
• There are two different types of reinforced connecting pins
8- / 7- / 6-speed narrow
TL-CN31 / TL-CN22 and
available. Be sure to check the table below before selecting
Black
chain such as
TL-CN30 / TL-CN21
which pin to use. If connecting pins other than reinforced
7.1mm
CN-HG50 / CN-IG51
connecting pins are used, or if a reinforced connecting pin or
Reinforced Connecting Pin
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.
• 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
End Pin
Link Pin
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.
• Use a front chainwheel which is compatible with 9-speed chains in conjunction with Shimano CN-7701, CN-HG93 and CN-HG73 chains.
If a chainwheel for an 8-speed chain or less is used, front chainwheel gear shifting problems may occur, or the chain pins might fall out,
causing the chain to break.
• 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
• 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 an 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.
• 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 Front
chainrings
next-larger rear sprocket or the one after.
• Apply grease to the bottom bracket before installing it.
• For smooth operation, use the specified outer casing and the bottom bracket cable guide.
Rear
• This front derailleur is for triple front chainwheel use only. It cannot be used with the double front
sprockets
chainwheel, as the shifting points do not match.
• When installing the top route type, choose a frame that has three outer casing holders as shown in
Outer casing holders
the illustration at right.
• 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.
• Make sure that the gear shifting cable and the brake cable do not obstruct each other during braking operations. If
they do obstruct, it may interfere with braking.
Install the cables so that they still have some slack in them even when the handlebars are turned fully in either
direction.
• A special grease is used for the gear shifting cable (SIS-SP41). Do not use DURA-ACE grease or other types of grease, otherwise they
may cause deterioration in gear shifting performance.
• 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.
• If the brake fluid used in the oil disc brakes is of a type which tends to adhere to the plastic parts of the shifting lever, this may cause the
plastic parts to crack or become discolored. Therefore, you should make sure that the brake fluid does not adhere to these plastic parts.
The mineral oil which is used in SHIMANO disc brakes does not cause cracking or discoloration if it adheres to plastic parts, but such
parts should be cleaned with alcohol beforehand to prevent foreign particles from adhering.
• Do not disassemble the indicator and shifting lever unit, as this may damage them or cause mis-operation.
• 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.
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In order to realize the best performance, we recommend that the following combination be used.
Series
XT
Shifting lever
SL-M751
Outer casing
SIS-SP41
Front derailleur
FD-M760 / FD-M761
Front chainwheel
FC-M760 / FC-M761
Chain
CN-HG93
Bottom bracket cable guide
SM-SP17 / SM-BT17
Specifications
Front Derailleur
Model number
X = Available
FD-M761
FD-M760 / FD-M760-E
Normal type
X
X
Top route type
Front chainwheel tooth difference
X
X
X
X
22T
22T
22T
12T
12T
12T
S, M, L
S, M, L
S, M, L
Chainstay angle (a)
66° - 69°
63° - 66°
66° - 69°
Applicable chain line
50.0mm
50.0mm
50.0mm
44T
48T
44T
Min. difference between top and intermediate
Front derailleur installation band diameter
Applicable front chainwheel
Installation band diameters:
S (28,6 mm), M (31,8 mm), L (34,9 mm)
When using the S, M size, use an
installation band with a diameter of 28.6
mm, 31.8mm and install it to a L size
adapter.
Chainstay angle
Chainwheel
Model number
FC-M760
FC-M761
Chainwheel tooth combination
44-32-22T
48-36-26T
Bolt circle diameter
Crank arm length
104 mm / 64 mm
104 mm / 64 mm
165 mm, 170 mm, 175 mm, 180 mm
165 mm, 170 mm, 175 mm, 180 mm
50 mm
50 mm
Chain line
Shell width
Thread dimensions
68, 73 mm
68, 73 mm
BC1.37 (68, 73mm)
BC1.37 (68, 73mm)
Gear shifting operation
Both lever (A) and lever (B) always return to the initial position when they are released after shifting.
When operating one of the levers, always be sure to turn the crank arm at the same time.
To shift from a small chainring to a larger chainring
To shift from a large chainring to a smaller chainring
When lever (A) is pressed once, there is a shift of one step
from a small chainring to a larger chainring.
When lever (B) is pressed once, there is a shift of one step
from a large chainring to a smaller chainring.
Example:
Example:
from intermediate chainring
to largest chainring.
Lever (A) initial position
from largest chainring to
intermediate chainring.
Levier (B)
Installation of the Front Chainwheel and Front Derailleur
TL-FC32
Follow the procedure in the figure.
4
1, 2 Use the special tool TL-FC32 to install the right adapter
(counterclockwise thread) and the left adapter (clockwise
thread).
Tightening torque: 35 - 50 N·m {305 - 435 in. lbs.}
Wide groove area
(A)
1
5
3
4
Insert the right crank unit.
5
Use the TL-FC16 to tighten the cap.
Tightening torque: 0.7 - 1.5 N·m {6 - 13 in. lbs.}
6
Tighten the bolt of the left crank.
Note : Each of the bolts should be evenly and equally
tightened to 12 - 15 N·m {106 - 132 in. lbs.}.
Set section A of the left crank into the axle of the right crank
unit where the groove is wide.
TL-FC16
2
6
3
■ Spacer installation method
Spacer
(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.
< FC-M760 >
F
A
F
B
F
C
2.5 mm
1.8 mm
0.7 mm
< FC-M761 >
Band Type
68 mm
Bracket Type
68 mm
F
A
68mm
73mm
F
A
73 mm
F
A
F
A
Band Type
E-type
bracket
F
A
68 mm
F
A
73 mm
F
C
F
A
73 mm
F
A
For bracket type
F
B
Chaincase Stay Type
68 mm
F
A
F
C F
A
73 mm
F
A
Bracket Type
Chaincase stay 68 mm
F
A
F
A
E-type
bracket
F
A
73 mm
F
C
Front Derailleur
Install as shown in the
illustration.
Front Chainwheel
Bolt
Adapter
Adapter
Tightening torque :
35 - 50 N·m {305 - 435 in. lbs.}
Adjust and then install the front derailleur as shown in the
illustration. Do not remove the Pro-Set alignment block at this time.
Pro-Set alignment block
The level section of the chain guide
outer plate should be directly above
and parallel to the largest chainring.
Secure using a 5 mm Allen key.
Gear teeth
should come
within this range
Pro-Set gauge
Chainwheel
(largest chainring)
Chain guide
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
Chain length
Add 2 links (with the chain on both
the largest sprocket and the largest
chainring)
Largest sprocket
Largest chainring
Chain
Installation of the lever
Use a handlebar grip with a maximum outer diameter of 32 mm.
Tightening torque :
5 N·m {44 in. lbs.}
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.
5 mm Allen key
SIS Adjustment
Be sure to follow the sequence described below.
1. Low adjustment
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.
Pro-Set alignment
block
B A
Low adjustment
screw
Chain position
Largest
sprocket
Smallest
chainring
A
B
Chain guide
inner plate
Chain
2. Connecting and securing the inner cable
Operate lever (B) two times or more,
and check on the indicator that the
lever is at the lowest position. Then
remove the inner hole cover and
connect the inner cable.
Lever (B)
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
Inner cable
Inner hole cover
Install the inner hole cover by turning it as
shown in the illustration until it stops.
Do not turn it any further than this, otherwise
it may damage the screw thread.
Tightening torque :
0.3 - 0.5 N·m {3 - 4 in. lbs.}
Inner hole cover
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.
Outer end cap
Attach the same outer
end cap to the cut end of
the outer casing.
• FD-M760
< Normal type >
< Top route type >
Note:
Pass the cable
through as shown
in the illustration.
Wire
fixing bolt
5 mm Allen key
• FD-M761
< Normal type >
< Top route type >
Note:
Pass the cable
through as shown
in the illustration.
Wire
fixing bolt
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
After taking up the initial slack in the cable, re-secure to the front
derailleur as shown in the illustration.
Normal type
Top route type
Pull
Pull
3. Top adjustment
Set so that the clearance
between the chain guide outer
plate and the chain is 0 - 0.5
mm.
Chain position
Smallest
sprocket
Largest
chainring
B
A
B A
Top adjustment
screw
Chain guide
outer plate
Chain
4. Adjustment of the intermediate
chainring
When carrying out adjustment, set the
chain to the largest sprocket, and at the
front, set the chain to the intermediate
chainring. Adjust using the outer casing
adjustment barrel so that the clearance
between the chain guide inner plate and
the chain is 0 - 0.5 mm.
B
Chain
Chain position
Largest
sprocket
A
Chain guide
inner plate
Intermediate
chainring
Outer casing adjustment barrel
5. Troubleshooting chart
After completion of steps 1 - 4, move the shifting lever to check
the shifting. (This also applies if shifting becomes difficult during
use.)
If the chain falls to the crank
side.
Tighten the top adjustment screw
clockwise (about 1/4 turn).
If shifting is difficult from the
intermediate chainring to the
largest chainring.
Loosen the top adjustment screw
counterclockwise
(about 1/8 turn).
If shifting is difficult from the
intermediate chainring to the
smallest chainring.
Loosen the low adjustment screw
counterclockwise
(about 1/4 turn).
Tighten the top adjustment screw
If there is interference between
the chain and the front derailleur clockwise (about 1/8 turn).
inner plate at the largest
chainring.
Loosen the top adjustment screw
If there is interference between
the chain and the front derailleur counterclockwise
(about 1/8 turn).
outer plate at the largest
chainring.
If the intermediate chainring is
skipped when shifting from the
largest chainring.
Loosen the outer casing
adjustment barrel
counterclockwise (1 or 2 turns).
If there is interference between
Tighten the outer casing
the chain and front derailleur
adjustment barrel clockwise
inner plate when the rear
(1 or 2 turns).
sprocket is shifted to the largest
sprocket when the chainwheel is
at the intermediate chainring
position.
If the chain falls to the bottom
bracket side.
Tighten the low adjustment screw
clockwise (about 1/2 turn).
This service instruction explains how to use and
maintain the Shimano bicycle parts which have
been used on your new bicycle.
For any questions regarding your bicycle or other
matters which are not related to Shimano parts,
please contact the place of purchase or the
bicycle manufacturer.
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
3-77 Oimatsu-cho, Sakai, Osaka 590-8577, Japan
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222
Please note: specifications are subject to change for improvement without notice. (English)
© Jun. 2004 by Shimano Inc. XBC SZK Printed in Japan
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