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General Safety Information
WARNING
Improper use of your bicycle's brake system may result in a
loss of control or an accident, which could lead to a severe
injury. Because each bicycle may handle differently, be sure to
learn the proper braking technique (including brake lever
pressure and bicycle control characteristics) for your bicycle.
Consult your bicycle dealer and the bicycle's owners manual,
and practice your riding and braking technique.
Securely tighten the caliper brake mounting nuts to the
specified tightening torque.
Use lock nuts with nylon inserts (self-locking nuts) for nut type brakes.
For sunken nut type brakes, use sunken nuts of the
appropriate length which can be turned six times or more;
when re-installing, apply sealant (locking adhesive) to the
nut threads.
If the nuts become loose and the brakes fall off, they may get
caught up in the bicycle and the bicycle may fall over.
Particularly if this happens with the front wheel, the bicycle
may be thrown forward and serious injury could result.
Brakes designed for use as rear brakes should not be used as
front brakes.
Obtain and read the service instructions carefully prior to
installing the parts. Loose, worn, or damaged parts may
cause serious injury to the rider. We strongly recommend only
using genuine Shimano replacement parts.
Be careful not to allow any oil or grease to get onto the brake
shoes. If any oil or grease do get on the shoes, you should
replace the shoes, otherwise the brakes may not work
correctly.
Check the brake cable for rust and fraying, and replace the
cable immediately if any such problems are found. If this is not
done, the brakes may not work correctly.
Always make sure that the front and rear brakes are working
correctly before you ride the bicycle.
The required braking distance will be longer during wet
weather.
Reduce your speed and apply the brakes early and gently.
If the road surface is wet, the tires will skid more easily. If the
tires skid, you may fall off the bicycle. To avoid this, reduce
your speed and apply the brakes early and gently.
Read these Technical Service Instructions carefully, and keep
them in a safe place for later reference.
NOTE:
If using SHIMANO's road brake shoes in combination with
ceramic rims, the brake shoes will wear more quickly than
normal.
If the brake shoes have worn down until the grooves are no
longer visible, they should be replaced.
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 handling or
maintenance, please contact the place of purchase.
– To avoid serious injuries:
SI-8DD0A-001
BR-6600
Caliper Brake
Technical Service Instructions
In order to realize the best performance, we recommend that the
following combination be used.
Series
Brake lever
Caliper Brake
Brake cable
ULTEGRA
ST-6600 / BL-R600
BR-6600
Installation of the brake lever
1.
5 mm Allen key
Tightening torque:
6 – 8 N·m
{52 – 69 in. lbs.}
In the case of carbon handlebars, it may be necessary to lower the
tightening torque in order to prevent damage to the handlebar. Please
consult the bicycle or handlebar manufacturer regarding the appropriate
level of tightening torque for carbon handlebars.
2.
2
2
Outer casing
Outer casing
Installation bolt
Cable hook
Checking the outer casing
Check to be sure that
the outer casing has
been completely and
correctly inserted.
Cable hook
Inner cable end
Inner cable end
1
1
Temporarily secure the outer casing to the handlebar (by
3.
using tape or similar material).
Outer casing
Tape
Then wrap the handlebar with handlebar tape.
4.
Note:
Cut the cable at the length at which it is not pulled tight
when the handlebar is turned all the way to the left and
right.
If a squeaking noise occurs after a long period of use,
lubricate the parts.
A
A A
Installation of the brake
Installation of the brake itself
1.
Compress the arch‚ and set while the shoe is in firm contact
with the rim.
Tightening torque:
8 – 10 N·m {69 – 87 in. lbs.}
5 mm Allen key
The usual position during
installation is when the head
of the centering adjustment
bolt is as shown in the
illustration.
Brake shoe setting position
2.
After adjusting the brake shoe position so that the shoe
surface and the rim surface are as shown in the illustration,
tighten the shoe fixing bolt.
Direction of
rim rotation
Direction of
Toe-in
rim rotation
0.5 mm
Note:
The BR-6600 allows the angle of contact between the
shoe and the rim (toe-in) to be adjusted. Adjusting the
toe-in makes it possible to obtain smoother braking
operation.
1 mm or more
Shoe fixing bolt
4 mm Allen key
Tightening torque:
5 – 7 N·m {43 – 61 in. lbs.}
Cable connection
3.
Set the quick release lever to the closed position; then adjust
the shoe clearance (as shown in the illustration below) and
secure the cable.
Cable bolt tightening torque:
6 – 8 N·m {52 – 69 in. lbs.}
Centering of the brake shoe
4.
Make a minor adjustment by using the centering adjustment
bolt.
Centering adjustment bolt
2
Open
=
A B
Closed
Quick release
lever
Readjustment of the shoe clearance
5.
Turn the cable adjustment bolt to readjust the shoe clearance.
2
1
3
=
A B
4
3
2
Cable adjustment bolt
4
3
1
+ =
A B
1
+ =
A B
4
3 mm Allen key
3 -- 4 mm
3 -- 4 mm
Check
6.
Depress the brake lever about 10 times as far as the grip and
check that everything is operating correctly and that the shoe
clearance is correct before using the brakes.
Depress about
10 times
Arch spring tension adjustment
7.
To increase the spring tension of the arch, hold the end of the
spring with pliers and turn the sleeve around to face the other
way.
Normal
tension
To increase
the tension
Sleeve
Replacement of the cartridge shoe
Remove the fixing bolt.
1.
Fixing bolt
Remove the shoe by sliding it along the groove of the shoe
2.
holder.
There are two different types of shoe and shoe holder to be
3.
used in the left and right positions respectively. Slide the new
shoes into the grooves on the shoe holders while taking note
of the correct directions and bolt hole positions.
For the left
Same at front and rear
Shoe holder Shoe holder
Fixing bolt
Tighten the fixing bolt.
4.
Tightening torque: 1 – 1.5 N·m {9 – 13 in. lbs.}
These service instructions are printed on recycled paper.
Please note: Specifications are subject to change for improvement without
notice. (English)
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, Osaka 590-8577, Japan
Shoe Shoe
FORWARD
R55C2
L
2 mm Allen key
Shoe
For the right
Same at front and rear
FrontFront
FORWARD
R
R55C2
Shoe
insertion
direction
C
Apr. 2007 by Shimano Inc. PIT. IZM. Printed in Japan
Fixing bolt
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