Operation Manual
EN-20 Original User Guide | Impulse 2.0 Pedelec Version 3
3.7.1 Chain tension
Measuring chain tension
1. Remove the pedelec battery.
2. Press the chain up or down at its tautest point. The tension is correct if
you can move the chain up and down by about 5 mm.
3. Checkthechainatfourorvepointsoveracompleterevolutionofthe
crank.
Adjusting chain tension
1. Remove the pedelec battery.
2. Undo the rear wheel nuts.
3. If necessary remove the brake anchor.
4. Pull the rear wheel back in the drop-outs until the chain just has the
permissible amount of play.
5. Carefully tighten all bolts in a clockwise direction to a torque setting of
35 – 40 Nm. Make sure the wheel is reinstalled straight.
3.7 Chain
*
Bicycle chain
WARNING
Always remove the battery before starting to work on the pedelec. The
system could switch itself on unexpectedly and you could be seriously
injured.
CAUTION
Check the chain for signs of wear before every trip. A worn or
damaged chain can break. If that happens while you are riding the
bikeyoucouldbethrownoandseriouslyinjured.
*depending on model