Shimano SM-EC79 Istruzioni operative
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
3
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
• • • • • • • • • • • • • • • • •
4
Problem with front derailleur or rear derailleur
• • • • • • • • • • • • • • • •
5
Problem with SM-EW79A + ST-7970 operation
• • • • • • • • • • • • • • • • •
7
SM-EW79A check
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
9
Electric cable continuity check
• • • • • • • • • • • • • • • • • • • • • • • • • • • • •
10
Changing the shifting switch direction
• • • • • • • • • • • • • • • • • • • • • •
12
English
Problem location procedure using the checker
4
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.
5
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
6
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
7
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.
8
< 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
9
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)
10
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
11
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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1
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