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In order to realize the best performance, we recommend that the following
combination be used.
The unit can be disassembled as shown
in the illustration.
Apply grease to the various parts at
periodic intervals.
<Assembly>
Use the special tool (TL-HS37 / 17mm) for
installing the hub axle to tighten the lock nut so
as to double-lock the mechanism as shown in
the illustration.
General Safety Information
WARNING
• Check that the wheels are fastened securely before riding the bicycle. If the wheels are
loose in any way, they may come off the bicycle and serious injury may result.
• The HB-T708 / SM-AX60 can be used in combination with a special front fork. If it is used
in combination with any other front fork, it may cause the wheel to become detached from
the bicycle while you are riding and result in serious bodily injury.
• Obtain and read the service instructions carefully prior to installing the parts. Loose,
worn or damaged parts may cause the bicycle to fall over and serious injury may occur as
a result. 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.
• Be sure to carefully read the Service Instructions for the disc brakes and the SM-AX60
also.
Note
• If the wheel becomes stiff and difficult to turn, you should lubricate it with grease.
• Do not apply any oil to the inside of the hub, otherwise the grease will come out.
• Parts are not guaranteed against natural wear or deterioration resulting from normal use.
• For maximum performance we highly recommend Shimano lubricants and maintenance
products.
Technical Service Instructions SI-2TX0A-001
HB-T708
Front hub
Maintenance
Check that the spokes have been laced as shown in the
illustration.
A radial assembly cannot be used.
Wheel spoke lacing Installation of the rotor
Tightening torque:
40 - 50 N·m {350 - 435 in. lbs.}
Rotor fixing
lock ring
TL-LR15
* Service Instructions in further languages are available at : http://techdocs.shimano.com
Please note: specifications are subject to change for improvement without notice. (English) © May 2009 by Shimano Inc. XBC IZM Printed in Malaysia.
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
Note:
• The HB-T708 cannot be disassembled from the left side of the hub unit
(the rotor fixing serration side).
• When removing and installing the seal, do it very carefully so that the seal
does not become bent.
When reinstalling the seal, make sure that it is facing the right way, and
insert it as far as it will go.
• The rotor fixing serrations may become damaged if the disc brake rotor
has not been installed to the HB-T708, so install the accessory rotor
mount cover.
Tightening torque:
15 - 17 N·m {132 - 146 in. lbs.}
Rotating direction of wheel
Front left Front right
17 mm spanner
TL-HS37
Hub axle
Rotor mount cover
Seal
Seal
Tighten
SI-2TX0A-001-00
Specifications
Caliper
Brake Lever
Rotor
E-Thru 8 mm
Model No.
Front hub
No. of spoke holes
BR-T665
BL-T665
SM-RT64
SM-AX60
32 / 36
HB-T708
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