Shimano SI-R650F Service Instructions
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Technical Service Instructions SI-R650F
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®
One Holland, Irvine, California 92618, U.S.A. Phone: +1-949-951-5003
Industrieweg 24, 8071 CT Nunspeet, The Netherlands Phone: +31-341-272222
3-77 Oimatsu-cho, Sakai, Osaka 590-8577, Japan
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Rear Drive System
In order to realize the best performance, we recommend that the following combination be
used.
Series
Rapidfire M9 (Shifting lever)
Outer casing
Rear derailleur
Type
Freehub
Gears
Cassette sprocket
Chain
Bottom bracket guide
Specifications
Rear Derailleur
Model number
Type
Gears
Total capacity
Largest sprocket
Smallest sprocket
Front chainwheel tooth difference
Cassette sprocket tooth combination
Model number
CS-M750
CS-M750
CS-M750
CS-HG70-9
Group name Gears
as
Q
a
ap
ar
Shifting lever
Model number
Gears
Freehub
Model number
Gears
No. of spoke holes 36 / 32 36 / 32
Installation of the rear derailleur
When installing, be careful that deformation is not caused by the B-tension adjustment screw coming into
contact with the dropout tab.
Bracket spindle Tightening torque :
8 - 10 N·m {70 - 86 in. lbs.}
Installation of the lever
SL-M750 / SL-M570
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.
SL-M750 /
SL-M570
Tightening torque :
5 N·m
{44 in. lbs.}
5 mm Allen key
DEORE XT DEORE LX
ST-M750 / SL-M750 ST-M570 / SL-M570
SP40 sealed SP40 sealed
RD-M750 RD-M570
SGS / GS SGS
FH-M750 FH-M570
99
SGS GS
43T
34T
11T
22T
ST-M750 / SL-M750
ST-M750 /
ST-M570
5 mm Allen key
CS-M750
CN-HG93
SM-SP17
RD-M750
9
9
9
9
9
9
FH-M750
9
5 mm Allen key
33T
34T
11T
22T
11, 13, 15, 17, 20, 23, 26, 30, 34T
11, 12, 14, 16, 18, 21, 24, 28, 32T
12, 14, 16, 18, 20, 23, 26, 30, 34T
11, 12, 14, 16, 18, 21, 24, 28, 32T
Use a handlebar grip with a maximum
outer diameter of 32 mm.
CS-HG70-9
CN-HG73
SM-SP17
RD-M570
Tooth combination
ST-M570 / SL-M570
FH-M570
Dropout tab
Tightening torque :
SGS
9
43T
34T
11T
22T
9
9
{53 - 69 in. lbs.}
B-tension
adjustment screw
6 - 8 N·m
Installation of the sprockets
For each sprocket, the
surface that has the group
mark should face outward
and be positioned so that
the wider part of each
sprocket and the A part
(where the groove width is
wide) of the freewheel
body are aligned.
The groove is
wide at one
place only.
Wide part
CS-M750 (as)
CS-M750 (aQ)
CS-M750 (ap)
CS-HG70-9
Lock ring spacer Lock ring
Sprocket spacers (2.56 mm)
Sprocket spacers (2.56 mm)
Lock ring spacer Lock ring
Chain length on bicycles with rear suspension
The length of A will vary depending on the movement of the
rear suspension. Because of this, an excessive load may
be placed on the drive system if the chain length is too
short. Set the length of the chain by adding two links to the
chain when the rear suspension is at a position where
dimension "A" is longest and the chain is on the largest
sprocket and the largest chainring. If the amount of
movement of the rear suspension is large, the slack in the
chain
may not be taken up properly when the chain is on the
smallest chainring and smallest sprocket.
SIS Adjustment
1. Top adjustment
Turn the top adjustment
screw to adjust so that the
guide pulley is in line with
the outer line of the
smallest sprocket when
looking from the rear.
2. Connecting and securing the inner cable
Operate lever (B) eight times or
more, and check on the indicator
that the lever is at the highest
position. Then remove the inner
hole cover and connect the inner cable.
Tightening torque :
5 - 7 N·m {44 - 60 in. lbs.}
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.}
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.
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.
Guide pulley
Outer end cap
Outer line of
smallest sprocket
Top adjustment
Inner cable
Inner hole cover
Inner hole cover
Marking
screw
Lever (B)
• For installation of the sprockets, use
the special tool (TL-HG16) to tighten
the lock ring.
Tightening torque:
30 - 50 N·m {261 - 434 in. lbs.}
• To replace the sprockets, use the
Lock ring spacer
Lock ring
special tool (TL-HG16) and TL-SR20
to remove the lock ring.
Lock ring
Tool
(TL-SR20)
TL-HG16
Lock ring spacer Lock ring
Note regarding the sealed cap with
tongue, rubber shield and outer
casing adjustment barrel cover
1. The sealed cap with tongue and
the rubber shield should be
installed to the outer casing
stopper of the frame.
Outer casing
adjustment barrel cover
Connect the cable to the rear derailleur and, after taking up the
initial slack in the cable, re-secure to the front derailleur as shown
in the illustration.
Disassembly
Largest
sprocket
Add 2 links (with the chain on
both the largest sprocket and
the largest chainring)
Be careful not to bend
Note: Be sure that the cable is
Chain
Sealed cap with tongue
Rubber shield
securely in the groove.
Pull
Groove
3. Low adjustment
Turn the low adjustment screw
so that the guide pulley moves
to a position directly in line with
the largest sprocket.
4. How to use the B-tension adjustment screw
Mount the chain on the smallest chainring and the largest
sprocket, and turn the crank arm backward. Then turn the
B-tension adjustment
screw to adjust the guide
pulley as close to the
sprocket as possible but not
so close that it touches.
Next, set the chain to the
smallest sprocket and
repeat the above to make
sure that the pulley does
not touch the sprocket.
Largest
sprocket
Guide pulley
Largest sprocket Smallest sprocket
Low adjustment
adjustment screw
Largest
chainring
screw
B-tension
Rubber shield
Replacement of the freewheel body
After removing the hub
axle, remove the freewheel
body fixing bolt (inside
the freewheel body),
and then replace the
freewheel body.
Note: Do not attempt to
disassemble the
freewheel body, because it
may result in a malfunction.
Freewheel body
Freewheel body fixing bolt
Disassembly
Assembly
10 mm Allen key
(TL-WR37)
Tightening torque :
35 - 50 N·m {305 - 434 in. lbs.}
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 sprocket to a larger sprocket
To shift one step only, press lever
(A) to the (1) position. To shift two
steps at one time, press to the (2)
position.
A maximum three-step shift can be
made in this manner.
To shift from a large sprocket to a smaller sprocket
Press lever (B) once to shift one
step from a larger to a smaller
sprocket.
2. Pass the outer casing through the
outer casing adjustment barrel
cover. At this time, check that the
outer casing fits securely into the
outer casing holder on the rear
derailleur side.
5. SIS Adjustment
Operate the shifting lever several times to move the chain to the
2nd sprocket. Then, while pressing the lever just enough to take
up the play in the lever, turn the crank arm.
When shifting
to 3rd
Outer casing
adjustment
barrel
Tighten the outer casing adjustment
barrel until the chain returns to the
2nd sprocket. (clockwise)
* Turn the outer casing adjustment
barrel together with the outer casing
adjustment barrel cover.
Best setting
The best setting is when the shifting lever is
operated just enough to take up the play and the
chain touches the 3rd sprocket and makes noise.
* Return the lever to its original position (the position where
the lever is at the 2nd sprocket setting and it has been released) and
then turn the crank arm clockwise. If the chain is touching the 3rd
sprocket and making noise, turn the outer casing adjustment barrel
clockwise slightly to tighten it until the noise stops and the chain runs
smoothly.
For the best SIS performance, periodically lubricate all
power-transmission parts.
Lever (A) initial position
Lever (B)
Outer casing adjustment
barrel cover
Outer casing
When no
sound at all
is heard
Outer casing
adjustment barrel
Loosen the outer casing adjustment barrel
until the chain touches the 3rd sprocket
and makes noise. (counter clockwise)
* Turn the outer casing adjustment
barrel together with the outer casing
adjustment barrel cover.
Outer casing
holder
Rubber
shield
Replacement of the shifting lever unit
and indicator
Removal of the indicator
Disassembly and reassembly should only be carried out when
replacing the indicator.
1. Remove the two indicator set screws which are securing the
indicator.
Tightening torque : 0.3 - 0.5 N·m {3 - 4 in. lbs.}
2. Remove the indicator unit as
shown in the illustration.
3. Operate lever (B) at least eight
times to set the lever to the
highest position.
4. After checking that the indicator needle
is at the left edge, install the indicator
as shown in the illustration.
5. Check the operation of the indicator. If it does not operate
correctly, re-install the indicator while taking particular note of
steps 3. to 4.
Replacement of the shifting lever unit
Disassembly and reassembly should only be carried out when
replacing the shifting lever unit.
1. Loosen the cable fixing bolt (nut) of the rear derailleur, and then
pull the inner cable out of the shifting lever unit in the same way
as when installing the inner cable.
2. Carry out steps 1 - 2 for replacement
of the indicator.
3. Remove the three shifting lever
mounting screws, and then remove
the shifting lever unit as shown in the
illustration.
Tightening torque :
0.5 - 0.8 N·m {4 - 7 in. lbs.}
Shifting lever mounting screws
4. To assemble, align the shifting lever unit and the brake lever
bracket and then secure the shifting lever mounting screws.
5. Carry out steps 3 - 4 for replacement of the indicator.
Do not disassemble the
indicator and shifting lever unit,
as this may damage them or
cause mis-operation.
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.
Please note: specifications are subject to change for improvement without notice.(English)
© Apr. 2003 by Shimano Inc. XBC SZK Printed in Japan
Indicator set screws
Indicator
Lever (B)
These service instructions are
printed on recycled paper.
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