Shimano SM-EC79 Betriebsanleitung

SM-EC79

Checker

Testapparaat

Prüfgerät

Testeur

Verificador

チェッカー

Checker

Verificador

Kontrol

Kontroll

∂ÏÂÁÎÙ‹˜

Tarkistuslaite

SERVICE INSTRUCTIONS

MONTAGE-INSTRUCTIES

EINBAUANLEITUNG

INSTRUCTIONS DE MONTAGE

INSTRUCCIONES DE SERVICIO

取扱い説明書

ISTRUZIONI per l'ASSISTENZA

MANUAL DE INSTRUÇÕES

SERVICEVEJLEDNING

BRUKSANVISNING

√¢∏°π∂™ ™∂ƒμπ™

HUOLTO-OHJEET

SI-7E20A-002

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)

Switch unit

(1) (5)

(6)

(7)

(10)

(9)

(8)

(2)

(3)

(4)

SM-EC79 INDEX

Using the checker

Problem location procedure using the checker

• • • • • • • • • • • • • • • • •

Problem with front derailleur or rear derailleur

• • • • • • • • • • • • • • • •

Problem with SM-EW79A + ST-7970 operation

• • • • • • • • • • • • • • • • •

SM-EW79A check

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

Electric cable continuity check

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

Changing the shifting switch direction

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

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

EW-7970.

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 EW-7970.

Problem with front derailleur or rear derailleur

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

the checker. The power indicator will turn on or flash. (If it turns on, 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.

Turned on

Flashing

Turned off

No problem

• If the judgment indicator (green)

turns on

Problem - - - - Replace the derailleur.

• If the judgment indicator (red) turns on

• If the judgment indicator (green) turns

on, 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

turns on, and the judgment indicators

turn off after 10 seconds

Illuminates green:

No problem

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

turn one. If the green indicator does not turn on 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:

No problem

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 turns on.

• Green indicator turns on

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

• Green indicator does not turn on

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

Connect to the side

which did not

illuminate green.

Check that the green

indicator turns on.

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 cable connector, front

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

press the ENTER switch on the checker unit.

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

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

further 10 seconds.

Using the checker

For the battery bracket

For the front derailleur or rear derailleur

No problem

The green indicator will

turn on for 10 seconds

No problem

The green indicator will

turn on for 30 seconds

Rear derailleur

connector

Front derailleur

connector

Battery bracket

NOTE:

• If the green indicator turns on while checking the cable using the checker to indicate

that the cable is normal, you should still shake and twist the cable while the indicator

is still turned on to check that there are no open circuits. If even a momentary

indication of a problem appears, replace the cable.

• The power will turn off automatically after 10 seconds. If you press the ENTER switch,

the operation will be repeated for another 10 seconds.

• If two batteries (main checker unit and battery bracket) are fitted while checking is

in progress, the orange and red indicators on the main checker unit will flash

simultaneously, so if this happens, remove the battery from the battery bracket.

Problem

Electric cable checker

Turned off

Checker unit

Green indicator turns

off and red indicator

turns on

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