Symptom
Component
Check Order
Notes
Solution
2. Decreased Run
Time
(cont).
2.2. Chain Line,
tension & Drive
Losses.
It is important to consider correct maintenance
of your OSET. For example, incorrect tension of
your OSET’s chain could result in energy losses.
A chain that is run too loose (apart from
coming off all the time) will cause ‘chain slap’ –
whereby the chain flails and creates more
resistance for the motor to overcome, which
subsequently requires more power and
eventually runs the batteries down. The
reverse of this – having the chain too tight, can
place an increased amount of tension on the
motor shaft and subsequently cause a drive
loss. Lastly if the front sprocket and rear
sprocket are not in good alignment with each
other then it will cause the chain to twist and
increase the friction levels, also causing a drive
loss. It may be that it is time to replace the
chain if you are unable to get a consistent level
of tension. Maybe the chain is now stretched
too far or the sprocket is warped or bent due
to an impact.
1. Check for correct chain
tension, there should be
around 1-2mm of
movement in the chain if
you were to squeeze the
chain just behind the front
sprocket with your finger
and thumb.
2. Check for correct chain
line, i.e. that the rear
sprocket is directly inline
with the front sprocket.
3. Replace chain.
11
Summary of Contents for 2012 12.5 24V
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