Electric
Scooter Troubleshooting Guide


Chain Falls Off Rear
Wheel Or Motor
Determine
The Chain And Sprockets History
Chains and sprockets will eventually wear out and
need to be replaced. It is difficult to determine exactly
how long a chain or sprocket will last. How many miles the
scooter has been driven, how often the chain was lubricated, and
if the scooter has been driven on clean or dirty/sandy
surfaces all play into how long a chain and sprocket will
last.
Chains wear and
stretch-out the more they are used. If a chain is replaced
before it gets too worn-out then the sprockets will not be
damaged, however if the chain is not replaced in time then
it will wear-out the sprockets and they will need to be
replaced along with the chain.
Inspect The
Chain And Align The Sprockets
Make sure the chain is properly tensioned and adjust the
tension if necessary. The chain should have approximately
1/4" of play up and down when properly tensioned. Inspect the rear wheel
sprocket for proper alignment with the motor sprocket. The rear
wheel sprocket
should be pointing directly towards the motor sprocket and
the chain should be centered on the sprocket and not pulling
to one side or the other. Always use two wrenches to loosen and tighten the axle nuts to
avoid damage to the wheel. To adjust
the rear wheel sprocket loosen the rear wheel axle bolts
just a little and then tap and pull on the tire to adjust the wheel.
Once the wheel has been properly aligned and tensioned then
go ahead and tighten the axle bolts back up. Motors are usually not
adjustable so adjusting the rear wheel is the only way to align
the sprockets on most electric scooters.
If the chain
started falling off directly after a sprocket
alignment or a tire and tube replacement then the rear sprocket may be out
of alignment, or the axle spacers may have been reinstalled in
the incorrect order. Try aligning the rear wheel sprocket
to the motors sprocket first, and if that does not help then try rearranging the axle
spacers to make the alignment correct once again.
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