General Safety Information SIS adjustment WARNING

General Safety Information SIS adjustment WARNING
General Safety Information
SIS adjustment
1. Low adjustment
WARNING
• 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.
• 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
• If gear shifting operations cannot be carried out smoothly, clean 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.
• When the chain is in the position shown in the illustration,
Front
the chain may contact the front chainrings or front derailleur
chainrings
and generate noise. If the noise is a problem, shift the chain
onto the next-larger rear sprocket or the one after.
• For smooth operation, use the specified outer casing and
Rear
sprockets
the bottom bracket cable guide.
• Grease the inner cable and the inside of the outer casing
before use to ensure that they slide properly.
• For the chain, be sure to use only the Shimano super-narrow type of chain. The wide
type of chain cannot be used.
• 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.
Set so that the clearance between the chain guide inner
plate and the chain is 0 - 0.5 mm.
Low adjustment
screw
Largest
sprocket
Inner chainring
Chain guide
inner plate
Chain
2. Connection and securing of cable
While pulling the inner cable, tighten the wire fixing bolt with a 5 mm
allen key to secure the cable.
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.
Pull
3. Top adjustment
Set so that the clearance between the chain guide outer
plate and the chain is 0 - 0.5 mm.
Smallest
sprocket
Top adjustment
screw
Outer chainring
Chain guide
outer plate
Chain
Technical Service Instructions
SI-5GR0A-001
4. Adjustment of the cable tension
FD-3400
Front derailleur
In order to realize the best performance, we recommend that the following
combination be used.
Series
SORA
Shifting lever
ST-3400
Outer casing
SP41
Gears
(1) When making the cable
adjustment, place the chain on
the largest sprocket at the rear;
and at the front, shift the chain to
the inner chainring and then set
it back onto the outer chainring.
Largest
sprocket
Front shifting
Lever [
b
From large chainring
to small chainring
Outer chainring
Lever [
a
Lever [
a
From small chainring
to large chainring
18
Front derailleur
FD-3400
Front chainwheel
FC-3400
Rear derailleur
(2) Perform the trimming.
(ST-3400)
■ Trimming (noise-prevention mechanism)
b .
Gently press the lever [
(A “click” sound will be heard.)
RD-3400-SS
Freehub
FH-3300
Cassette sprocket
While turning the crank arm, gently operate lever (b) and check that the front derailleur
moves slightly toward the small chainring. If the front derailleur moves by a large
amount and the chain is set onto the small chainring at this time, loosen the top
adjustment bolt by 1/8th of a turn. Then, after returning the chain to its original position,
adjust and check the trimming mechanism.
CS-HG50-9
Chain
CN-HG53
Bottom bracket cable guide
SM-SP17
Note:
There are two derailleur positions for the outer chainring. Make sure the derailleur is in
the inner side of the two positions.
Specifications
Type
Band type / Brazed on type
Front derailleur installation band diameter
Shift the derailleur from the inner chainring (L)
to the outer chainring (T), then gently press
the small lever (b) until a small click is felt.
(trim function).
S (28.6mm), M (31.8mm), L (34.9mm)
Front chainwheel tooth difference
16 teeth or less
Chainstay angle (C)
61° - 66°
Chain line
43.5mm
Adjustment point
Installation of the front derailleur
1. Adjust so that the clearance between the chain guide outer
plate and the large gear is 1 - 3 mm before installing.
Clearance:
0 - 0.5mm
(3) After trimming, adjust the clearance
(by using the cable-adjustment bolt)
of the chain and chain guide to the
minimum (0 - 0.5 mm).
Clearance: 1 - 3 mm
Largest
sprocket
Outer chainring
Chain guide outer plate
B
A
Chain guide
inner plate
Outer casing adjustment bolt
Chain
5. Troubleshooting chart
2. The level section of the chain guide outer plate should be
directly above and parallel to the largest chainring.
3. Secure using a 5mm Allen key.
Tightening torque:
5 - 7 N·m
{44 - 60 in. lbs.}
After completion of steps 1 - 4, move the shifting lever to check the shifting.
(This also applies if shifting becomes difficult during use.)
Chainwheel
(largest chainring)
If the chain falls to the crank side
Tighten the top adjustment screw clockwise
(about 1/4 turn).
Chain guide
If shifting is difficult from the small chainring to the
large chainring
Loosen the top adjustment screw
counterclockwise (about 1/8 turn).
If shifting is difficult from the large chainring to the
small chainring
Loosen the low adjustment screw
counterclockwise (about 1/8 turn).
If the chain falls to the bottom bracket side.
Tighten the low adjustment screw clockwise
(about 1/8 turn).
If the gear shifting to the small chainring is stiff and
difficult to carry out after trimming.
Turn the outer casing adjustment bolt
clockwise (1/8 of a turn at a time) until
shifting to the small chainring becomes
smooth. Be careful not to turn the outer
casing adjustment bolt too far at this time,
otherwise shifting to the large chainring will
become more difficult.
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-ku, Sakai-shi, Osaka 590-8577, Japan
Please note: specifications are subject to change for improvement without notice. (English)
© Nov. 2006 by Shimano Inc. XBC SZK Printed in Singapore.
Be sure to read these service instructions in conjunction with the service instructions for the
ST-3400 before use.
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