Derby cycle Impulse Evo - Page 205

EN-98 Original User Guide | Pedelec Impulse Evo / Impulse Evo Next Version 4
Description Cause Remedy
b)Chain/belthascomeo. b) Lift the chain/belt on to the sprocket and adjust the tension. Contact your cycle dealer  3.8.1 Measuring
and adjusting the chain tension Page EN-23  3.9.1 Belt tension Page EN-24.
Power assist sporadically cuts out. a) The spoke magnet has slipped. a) Check whether the spoke magnet has slipped. It should be
as close as possible to the speed sensor on the chain stay
(max. 10 mm). Align the magnet with the marker point on
the speed sensor.
Spoke magnet
Speed sensor
b) Climb assist is set too high. b) Change the value  6.4.3.16 Climb assist Page EN-66.
Motor noise a)Therearevariousreasonsformotornoise–itisnotalwaysduetoamechanicalfault.Forexample,thefollowingfactorscannegativelyaect
noise:
» Excessively high cadence with a low load.
» Very high assist level (e.g. riding uphill).
» Derailleur gear (as opposed to a gear hub).
b) Chain/belt tension too high. b) Reduce chain/belt tension. Contact your cycle dealer  3.8.1 Measuring and adjusting the chain tension
Page EN-23  3.9.1 Belt tension Page EN-24.
c) Dirty chain/belt. c) Clean chain/belt  3.8.3 Chain cleaning and maintenance Page EN-23  3.9.3 Cleaning the belt Page EN-26.
d) Defective pedals. d) Replace pedals  3.1 Attaching the pedals Page EN-16.
e) Motor bolts not tight enough. e) Tighten motor bolts  12. Torque settings Page EN-103.
Buttons on easy-reach control not
functioning
Easy-reach control is defective. Please contact your cycle dealer. The easy-reach control may have to be replaced.
The system freezes in a mode.
Shift sensor not working. Shift sensor defective. Please contact your cycle dealer. The shift sensor may have to be replaced.
Push assist is too weak. a) Software is not up to date. Please contact your cycle dealer. They can install the latest system software.
b) Shift cable incorrectly threaded. Please contact your cycle dealer.