Shimano ALFINE S7051 Series Dealer's Manual page 84

MAINTENANCE
Assembly of the switch unit (ST-S705-R)
3
(B)
4
5
Press the switch unit by hand so that the
switch springs go into the grooves in the
(A)
buttons, and then push the shifting
switches [X/Y] in as far as they will go.
Make a gap between the switch unit and
the setting plate and check that the end
of the rubber on the switch unit is on the
button.
Return the switch unit to the setting
position for the switch unit setting plate,
and while pressing it by hand, operate
the shifting switches [X/Y] once more
and check that the switches turn on.
Install the switch using the switch unit
fixing screws.
84
(A)
Switch unit
(B)
Shifting switches [X/Y]
Tightening torque
0.18 N·m