Shimano RD-7700 Service Instructions

SERVICE INSTRUCTIONS
SI-5TJ1D
RD-7700
Rear Derailleur
Before use, read these instructions carefully, and follow them
for correct use.
In order to realize the best performance, we
recommend that the following combination be used.
Series DURA-ACE
Shifting lever ST-7700 / SL-7700 / SL-BS77
Outer casing SIS-SP40
Rear derailleur
RD-7700
Freehub FH-7700
Sprockets 9
Cassette sprocket CS-7700
Chain CN-7700
Bottom bracket
SM-SP17
cable guide
Specifications
Type SS
Total capacity 26 teeth or less
Largest sprocket 26T
Smallest sprocket 11T
Front chainwheel tooth
14 teeth or less
difference
Note
• For smooth operation, always be sure to use the
specified outer casing and the bottom bracket cable
guide.
• Grease the inner cable and the inside of the outer
casing before use to ensure that they slide properly.
• The tension pulley has a mark which indicates the
direction of rotation. The side with the arrow is the
front side.
• Because the high cable resistance of a frame with
internal cable routing would impair the SIS function,
this type of frame should not be used.
• The end of the outer casing which has the
aluminum cap should be at the
derailleur side.
Derailleur side
Aluminum cap Plastic cap or 4-mm cap
• For any questions regarding methods of installation,
adjustment, maintenance or operation, please contact
a professional bicycle dealer.
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 Nm {70 - 86 in. lbs.}
5 mm Allen key
Dropout tab
Chain length
SS type
Smallest sprocket
Chain
Guide pulley
90°
Tension pulley
Right angle to the ground
Stroke adjustment and cable
securing
1. Top adjustment
Turn the top adjustment screw to adjust so that the
guide pulley is below the outer line of the smallest
sprocket when looking from the rear.
Outer line of smallest sprocket
4-mm cap
1
2
Guide pulley
2. Connection and securing of
the cable
Connect the cable to the rear
derailleur and, after taking up the
initial slack in the cable, re-secure
to the rear derailleur as shown in
the illustration.
B-tension
adjustment screw
RD - 7700
Cable fixing position
Position-A
Position-B
3. Low adjustment
Turn the low adjustment screw so that the guide
pulley moves to a position directly in line with the
Largest chainring
largest sprocket.
Largest sprocket
Guide pulley
2
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
2
1 2
Top adjustment
screw
1
5. SIS Adjustment
(1)
Operate the shifting lever to move the chain from
Pull
the top gear to the 2nd gear.
* If the chain will not move to the 2nd gear, turn
the outer casing adjustment barrel to increase the
tension-----
* If the chain moves past the 2nd gear, decrease
the tension---
(clockwise)
Position-B
Position-A
Lever Sprockets
ST-7700 / SL-7700 9
ST-6400 8
(2)
Next with the chain on the 2nd gear, increase the
inner cable tension
ST-7400 8
forward. Stop turning the outer casing adjustment
barrel just before the chain makes noise against
the 3rd gear.
This completes the adjustment.
1 2
For the best SIS performance, periodically lubricate
Low adjustment
1
screw
all power-transmission parts.
Smallest sprocket
2
One Holland Irvine CA 92618 U.S.A. Phone 949-951-5003
Industrieweg 24 NL-8071 CT Nunspeet Holland Phone 31-341-272222
1 2
1
B-tension
77 Oimatsu-cho 3-cho Sakai Osaka 590-8577 Japan Phone 0722-23-3243
adjustment
screw
Please note: specifications are subject to change for improvement
without notice. (English)
©Jun. 1997 by Shimano Inc. XBC SZK Printed in Japan.
➀
(counter clockwise)
➁
3rd 2nd Top
Outer casing
adjustment
barrel
➁
➀
x
while turning the crank arm
➀
Counter-clockwise
➁
Clockwise
Outer casing
adjustment barrel
These service instructions are printed on
recycled paper and can be recycled again
®