Shimano SM-EC79 Manual de usuario

English 3 – 24

Dutch 25 – 46

German 47 – 68

French 69 – 90

Spanish 91 – 112

Japanese 113 – 134

Italian 135 – 156

Portuguese 157 – 178

Danish 179 – 200

Swedish 201 – 222

Greek 223 – 244

Finnish 245 – 266

Chinese 267 – 288

Names of parts

Checker unit

Electric cable checker

Shifting switch checker

(1) Power indicator (orange)

(2) ENTER switch

(3) Judgment indicator

(green)

(4) Judgment indicator (red)

(5) Shifting switch direction

change mode

(6) Checker mode

(7) Mode select switch

(8) Derailleur connector

(9) Lever connector

(10) Cable receptor

Power supply

continuity check

indicator (green) Connect to

junction A

Switch unit

(1) (5)

(6)

(7)

(10)

(9)

(8)

(2)

(3)

(4)

SM-EC79

INDEX

Gear shifting operation

• • • • • • • • • • • • • •

Installation

• • • • • • • • • • • • • • • • • • • • • • • • • • •

Adjustment

• • • • • • • • • • • • • • • • • • • • • • • • • • •

Other lever operation functions

• • • • • •

Maintenance

• • • • • • • • • • • • • • • • • • • • • • • • •

Gear shifting operation

• • • • • • • • • • • • • •

Installation

• • • • • • • • • • • • • • • • • • • • • • • • • • •

Adjustment

• • • • • • • • • • • • • • • • • • • • • • • • • • •

Other lever operation functions

• • • • • •

Maintenance

• • • • • • • • • • • • • • • • • • • • • • • • •

English

Problem location procedure using the checker

Using the checker

The two functions of this checker are to

determine locations of problems and to

change the switch directions.

No problem

Problem

NOTE:

This checker may not be possible to

determine the locations of some types of

problem.

Replace the

derailleur.

Replace the

SM-EW79A.

Replace the

ST-7970 lever.

Replace the

electric cable.

Problem with

derailleur operation

Derailleur (front

derailleur or rear

derailleur) does

not operate

Problem with input

(SM-EW79A/ST-7970

lever) operation

Check the

SM-EW79A.

Check the continuity

in the main electric

cable.

Problem with front derailleur or rear derailleur continuity

1. First remove the battery from the battery bracket, and then insert the battery into

the checker. The power indicator will illuminate or flash. (If it illuminates, the battery

can be used; if it flashes, recharge the battery.)

* If there is no response from the checker when the battery is inserted into it, there

may be a problem with the battery.

2. Move the mode select switch to the checker

mode position.

Illuminated

Flashing

Not illuminated

No problem

• If the judgment indicator (green)

illuminatesswitch is operated.

Problem - - - - Replace the derailleur.

• If the judgment indicator (red)

illuminates

• If the judgment indicator (green)

illuminates, and then after 1 or 2

seconds the judgment indicator (red)

flashes

• If there is no reaction from the

derailleur after 10 seconds from ENTER

switch input and the orange indicator

illuminates, and the judgment

indicators turn off after 10 seconds

Illuminates green:

Normal

Illuminates red:

Problem

Illuminates green

and flashes red:

Problem

Illuminates orange,

then turn off after

10 seconds:

Problem

3. Disconnect the connector for the rear

derailleur (front derailleur). Insert the

derailleur connector of the checker into the

rear derailleur (front derailleur).

4. Press the ENTER switch on the checker. The check will

start automatically and the judgment will be given.

* To try actual operation, press the ENTER switch several

times while turning the crank arm.

Using the checker

Adjustment button

Adjustment LED

Battery LED

SM-EW79A

Junction A

Problem with SM-EW79A + ST-7970 operation

1. Disconnect the connector for the SM-EW79A junction, connect the lever connector of

the checker to the connector from SM-EW79A junction A, and then press the ENTER

switch.

< For the left lever > < For the right lever >

2. Before a further 10 seconds have passed, press the shifting switch for the

ST-7970 lever.

If there is no problem, the judgment indicator (green) on the checker will

illuminate. If the green indicator does not illuminate when the switch is

pressed, check the SM-EW79A.

* If the switch is pressed and held, the battery LED of the SM-EW79A will illuminate

green. If no other operation is carried out for 30 seconds after the switch input, the

power will turn off automatically.

Illuminates green:

Normal

Using the checker

SM-EW79A check

1. With the checker still connected to (A), connect the switch checker to (B).

2. Press the ENTER switch.

3. Press a switch on the switch checker, and check that the green indicator illuminates.

• Green indicator illuminates

- - - The SM-EW79A is OK. Replace the ST-7970 lever.

• Green indicator does not illuminate

- - - Problem with SM-EW79A. Replace the SM-EW79A.

Connect to the side

which did not

illuminate green.

Check that the green

indicator illuminates.

SM-EW79A

Junction A

(A)

(B)

Electric cable continuity check

1. Disconnect all of the rear derailleur, front derailleur and junction A connectors.

2. Connect the electric cable connector (5-wire) to the cable receptor of the checker,

connect the electric cable to the component (rear derailleur connector, front

derailleur connector or battery bracket) that you would like to check, and then press

the ENTER switch on the main checker unit.

* If the switch input is connected, the indicator will remain illuminated while the

switch is being pressed. If the switch is released, a signal will continue to be output

for a further 10 seconds.

* Check in one place at a time. If you try to check two places at once, the indicator

display will not be correct.

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