background image

Return spring

Lever stud

Junction (A)

Illuminates (red)

Special E-ring 
removal tool

Y6RT68000

Rear derailleur adjustment 

button

Button hold down

Illuminates (red)

Flashes (red)

Protection clear operation

Protection cleared

Approx. 5 seconds in total

(A)

(B)

38

39

$

  Disassembly of the bracket unit and lever unit

1.

  Use the special tool which is sold separately to remove the E-ring.  

Align part B of the special tool with the removal direction of the E-ring. Next, set part A onto the E-ring and remove the E-ring.

2.

  Insert an Allen key or a similar tool into the hole in the lever stud, and then 

tap it with a plastic mallet to push out the lever stud.

3.

  Remove the return spring.

MAINTENANCE

Note:

*  The E-ring may fly off suddenly during removal, so check that there are no people or objects nearby while 

removing the E-ring.

* The illustrations show the right-side lever.

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  Protection function

*  Rotate the front chainwheel while restoring operation after the protection function has been activated.

If the bicycle receives a strong impact, the protection function operates and the connection between the motor and the link is 
momentarily severed so that the rear derailleur will no longer operate. This is done in order to protect the system at times such as if 
the bicycle falls over. If this happens, press the rear derailleur adjustment button on junction (A) of the SM-EW67-A-E for 5 seconds 
or more. This will restore the connection between the motor and the link and clear the protection function for the rear derailleur. 
If the connection is not restored, push/pull the cage sideways or move it forward and backward by hand. Operate the shifting 
switches to check that the connection has been restored. 

When the red LED on junction (A) is illuminated, the rear derailleur cannot shift gears. Keep pressing the rear derailleur adjustment 

button until the red LED turns off.

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  Battery charge display function

Press and hold either shifting switch for 0.5 seconds or more. You can check the amount of battery charge remaining using the 

battery indicator on junction (A).

*  When the battery charge is low, first the front derailleur will stop operating, and then the rear derailleur will stop operating. 

When the battery charge has been fully spent, the derailleurs will be fixed at the last gear shifting position. If the battery 
indicator is illuminated red, it is recommended that you recharge the battery as soon as possible.

OTHER FUNCTIONS

Illuminates green (for 2 seconds)

Flashes green (5 times)

Illuminates red (for 2 seconds)

Flashes red (5 times)

100 %

50 %

25 %

0 %

Battery indicator

Summary of Contents for Ultegra 6770 Series

Page 1: ...DM 0001A 001 English 6770 Series Dealer s Manual Please note specifications are subject to change for improvement without notice English Aug 2011 by Shimano Inc XBC...

Page 2: ...mount 25 Installation and removal of the battery 26 Rear junction Connection of junction B External type Rear junction Connection of junction B Built in type 29 Installation of the bottle cage adapter...

Page 3: ...ly to the battery terminals Do not connect the and terminals with metallic objects Do not carry or store the battery together with metallic objects such as necklaces or hairpins If this is not observe...

Page 4: ...fire If this is not observed sparking bursting fire or electric shocks may result Do not recharge the battery in places which have high humidity or outdoors Do not insert or remove the plugs while the...

Page 5: ...the battery in a safe place away from the reach of infants and pets Be sure to rotate the front chainwheel when carrying out any lever operations which are related to gear shifting Be sure to attach d...

Page 6: ...The strength of the adhesive is fairly weak to prevent the paint on the frame from being peeled off at the same time when removing the electric wire cover for reasons such as replacing the electric w...

Page 7: ...A E Electric wires EW SD50 EW SD50 I Electric wire cover SM EWC2 Grommets SM GM01 GM02 Lithium ion battery SM BTR1 Battery charger SM BCR1 Battery charger SM BCR1 cord SM BCC1 Battery mount SM BMR1 Bo...

Page 8: ...URATION DETAILS Electric wire cover SM EWC2 Battery mount SM BMR1 Bottle cage adapter SM BA01 E tube Project System checker SM PCE1 Rear junction Junction B Built in type SM JC41 External type SM JC40...

Page 9: ...nit Lithium ion Nominal capacity 530 mAh Weight Standard 71 g Operating temperature range During discharge 10 C 50 C During charging 0 C 45 C Storage temperature range 20 60 C Nominal voltage 7 4 V Re...

Page 10: ...ways be sure to install the protector in order to prevent damage to the frame from the pressure applied by the support bolt of the front derailleur Installation of the protector Check the position whe...

Page 11: ...end 2 Adjust so that there is a clearance of 1 3 mm between the chain guide outer plate and the large chainring 4 Use a 2 mm Allen key to turn the support bolt in order to adjust the position of the f...

Page 12: ...he larger chainring to the smaller chainring GEAR SHIFTING OPERATION CONNECTION OF THE ELECTRIC WIRES Operating the rear shifting switches initial settings Built in type SM JC41 External type SM JC40...

Page 13: ...bottle cage is installed Use the included M4 bolts to secure the SM BMR1 S short type The remaining terminal can be used for an additional satellite switch or the SM PCE1 2 Open up the bracket cover a...

Page 14: ...attery mount 3 Provisionally secure the electric wire along the frame with tape and then connect it to junction B When routing the electric wire to the rear derailleur be sure to install it to the bot...

Page 15: ...er once or more to set the front derailleur to the larger chainring position when installing the chain After this be sure to remove the battery Disconnection of the electric wires Use the wide end of...

Page 16: ...attery mount and junction B through the down tube Check that the screws of the bottom bracket shell do not damage any of the components at this time 3 Set the electric wires so that only the electric...

Page 17: ...e the battery mount to the frame 1 2 3 If there is a mounting boss on the frame the battery mount can be secured to the frame with a bolt Installation of the grommets Install grommets in appropriate p...

Page 18: ...ere the guide pulley finally stops 4 While turning the front chainwheel operate shifting switch X to move the guide pulley toward the inside until the chain touches the 4th sprocket and makes a slight...

Page 19: ...that the guide pulley does not obstruct the chain Adjustment of the front derailleur Note The low adjustment bolt the top adjustment bolt and the support bolt are close to each other Make sure that yo...

Page 20: ...rate This is done in order to protect the system at times such as if the bicycle falls over If this happens press the rear derailleur adjustment button on junction A of the SM EW67 A E for 5 seconds o...

Page 21: ...e switch unit setting plate 3 Press the switch unit by hand so that the switch springs go into the grooves in the buttons and then push the shifting switches X and Y in as far as they will go 4 Make a...

Page 22: ...If the battery is stored in cold locations the performance of the battery may drop and the length of time that it can be used may become shortened Electrical contacts Do not modify or damage these oth...

Page 23: ...nsert any other type of battery into the battery charger If this is not observed explosions or fire may result The ULTEGRA 6770 series is not interchangeable with the DURA ACE 7970 series BATTERY CHAR...

Page 24: ...or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from...

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