Argos 836/5967, Maintenance Manual

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ADJUSTING CHAIN
Chain Adjustment
TENSION
Most children’s bikes have one gear and as a result the chain tension is very important.
The chain should be able to move approximately 12mm(6mm up and 6mm down)at the mid-point
between the front and rear gear sprockets.
6
B
A
30
fig 16
WARNING: Do not attempt chain
repairs.If there is a problem with the chain,
have a bicycle service shop make any repairs.
Adjustment
Adjust the tightness of the chain as follows:
(fig 16) :
The chain must be at the correct tightness.If too tight, the bicycle will be difficult to pedal.If too loose, the
chain can come off the sprockets.
when the chain (30) is at the correct tightness,you can rotate the crank freely and you can pull it no more
than one-half inch(A) away from a straightedge (B) as shown.
Loosen the axle nuts of the rear wheel.
Move the rear wheel forward or backward as necessary.
Hold the wheel in this position and tighten the axle nuts to 21 ft.-lbs.
NOTE: Make sure the rear wheel is in the center of the bicycle frame.