Shimano ALFINE S7051 Series Dealer's Manual page 25

INSTALLATION
Installation of the motor unit to the hub (MU-UR510 / MU-UR500 / MU-S705)
Make sure that the two protrusions on the inside of the motor unit are at the initial
positions.
• For MU-UR500 / MU-UR510, confirm that the mark and protrusions are aligned.
• For MU-S705, confirm that the protrusions are positioned as shown in the figure.
MU-UR500
(A)
MU-UR510
2
(A)
To be continued on next page
MU-S705
(B)
(C)
(B)
(A)
(B)
(A)
(C)
25
(A)
Inside motor unit
(B)
Protrusion
(C)
Mark (MU-UR500 / MU-UR510)
NOTICE
Check that the rubber seal is attached. If the
rubber seal is not attached, attach as shown in
the illustration. There is no compatibility
between MU-UR510 / MU-UR500 and
MU-S705 rubber seals.
MU-UR500 MU-UR510
Inside motor unit
Rubber seal
Motor unit
MU-S705
Inside motor unit
Rubber seal
Motor unit
(A)
Shifting switch
NOTICE
The motor unit is set at the initial position
when it is shipped; therefore, install it
without changing the position. If the motor
unit may not be at the initial position, push
the following shifting switch ten or more
times to move the protrusions on the motor
unit clockwise (check from the inside of the
motor unit). (Check the shifting up and down
of the shifting switch in advance as it may
have been switched by customization.) If the
motor unit is installed off the initial position,
some gears may become unavailable and the
hub or the motor unit may be damaged.