Focus IMPULSE EVO PEDELEC - Understanding the Chain; Chain Tension

Original User Guide | Impulse Evo pedelec Version 2 US-29
3.7 Understanding the chain
Chain
WARNING
Always remove the battery before starting to work on the pedelec. The
system could switch itself on unexpectedly and you could seriously
injure yourself.
CAUTION
Check the chain for signs of wear before every trip. A worn or
damaged chain can break. It that happens while you are riding the
bikeyoucouldbethrownoandseriouslyinjured.
NOTICE
When you are cleaning the belt, make sure that no water gets into the
motor. Water ingress can damage the motor.
If the chain won’t shift smoothly and quietly from gear to
gear, the derailleur is out of adjustment. See your dealer.
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 0.2 inches.
3. Checkthechainatfourorvepointsoveracompleterevolutionofthe
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 [25.8 - 29.5 ft·lb]. Make sure the wheel is reinstalled
straight.