17
CHAIN ADJUSTMENT
Your OSET features a traditional chain and sprockets. It is direct drive, with no gears.
With the motor mounted in the swingarm, suspension movement has no effect on tension.
However, the chain does need to be checked and adjusted regularly, especially when the
bike is new.
The chain must be checked before every ride and adjusted as necessary. There should be
very little slack in the chain. Adjustment is done as follows:
1.
Ensure power is turned off.
2.
Loosen axle nuts (shown below).
3.
Turn chain tensioner nuts evenly on both sides. Very small movements can make a
big difference. Do not tighten so much there is no slack at all.
It should be ‘taught’, not ‘tight‘. Rotate wheel by hand and check chain tension.
4.
Lubricate the chain & check the sprocket bolts for tightness.
5.
Reverse the above procedure, ensuring all bolts are tight.
6.
Check the wheel for alignment and the chain for tension.
See page 20 for wheel
alignment information.
These two pictures show the correct tension. When the tensioner is pushing up on the
chain, it should only move between 5 and 10mm.
Axle Nut (15mm)
Chain tensioner nut (13mm)
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It is very important to keep everyone clear of the bike when changing and checking the
speed and response settings. The dial is sensitive to small adjustments. Do not guess at
changes. Always check before the rider gets back on to ensure the desired setting is
correct for the abilities of the rider.
WARNING!
MOTOR CARE
The OSET motor has been designed for high performance.
DO NOT POWER WASH THE
MOTOR.
Check that the sprocket bolt is tight periodically. Waterproof grease can be applied
around the shaft where it enters the motor for additional protection from the elements.
Similarly, a bead of silicone can be applied where the casings join for additional weather
protection.
Failure to maintain and adjust the chain and align the wheel correctly could result in the
chain jumping off the sprockets, causing a potentially dangerous and damaging condition.
WARNING!
MOTOR PERFORMANCE & MAINTENANCE
The motor can get hot. It is designed to withstand high temperatures. However, sustained
maximum output is not recommended. The motor is designed to withstand pulses of
maximum output, not sustained.
WARNING!