Urban Arrow Family Gebrauchsanweisung Seite 67

Problem
I hear a audible rattle coming
from my wheel.
The message 'error 503'
appears on the screen of your
display.*
My ring lock seems to be
loose or has (partly) come off
the bike frame.
There is no speed indication
visible on the screen of your
display.
* For all the other Bosch error codes, please check the supplied
Bosch manual.
User manual
Cause
A spoke is loose.
There is a problem with the speed sensor.
Lock rubbers give the lock a certain flexibility to
prevent a spoke from breaking in case you take a bike
off its kickstand while being locked. When the lock
rubbers are torn and/or cracked the ring lock might
seem loose or the ring lock (partly) comes off the bike
frame.
There is a problem with the speed sensor.
Solution
Check your spokes and contact your Urban Arrow
dealer in case there is a spoke missing or you detect a
damaged spoke.
Check your speed sensor (see paragraph 8.2.1).
Contact your Urban Arrow dealer to replace the
damaged lock rubber(s) by a new one.
Check your speed sensor (see paragraph 8.2.1).
EN
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