AJS 350 1954, Maintenance Manual And Instruction Book, Page: 51 / 96

REAR CHAIN ADJUSTMENT (Rigid Frame Models)
To provide rear chain adjustment the rear wheel is bodily moved in the frame fork ends,
which are open ended and slotted.
Tighten rear chain by :
Place machine on rear stand.
Slightly slacken nuts on rear wheel solid spindle (left side first).
Slacken nut on each chain adjusting bolt, two or three turns. (These bolts screw into
forward end of each frame fork end.)
Screw, in turn, each chain adjusting bolt, further into the fork ends until the chain
tension is correct. Each bolt must be turned the same amount. The chain whip should
be
a
" to ½".
Check adjustment, in more than one position, by partly revolving the rear wheel.
Tighten wheel spindle nuts.
Re-check chain tension.
Tighten nuts on chain adjusting bolts.
NOTES ON REAR CHAIN ADJUSTMENT
Before tightening the rear chain, check the front chain adjustment, and, if attention is
necessary, adjust the front chain first.
Altering the adjustment of the front chain upsets the adjustment of the rear chain.
Therefore, after making a front chain adjustment, always check the rear chain adjustment
and re-set if necessary.
Altering the adjustment of the rear chain may upset the adjustment of the rear brake.
Therefore, after making a rear chain adjustment, always check the brake adjustment
and re-set if necessary.
The whip of chains should always be tested mid-way between the two sprockets, and the
sprockets should be turned and tests made in several positions. This is because chains
never wear evenly, and there is usually one position where the chain is tighter than in
any other. The adjustment should be set for the tightest position found.
Always re-check the chain tension after making it and tightening all bolts and nuts.
DYNAMO CHAIN ADJUSTMENT
The dynamo armature shaft is eccentric to the body of the dynamo. Therefore, by
partially revolving the dynamo in its housing the distance between the two dynamo
driving sprockets can be varied, thereby allowing latitude for chain adjustment.
Tighten dynamo chain by :
Remove inspection cap from front chaincase.
Slacken dynamo clamping strap bolt.
With the fingers turn dynamo bodily in an anti-clockwise direction till, by passing a
finger through the inspection cap opening, it can be felt the chain tension is correct.
The chain whip should be about ¼". Ensure, when feeling tension, the front driving
chain is not confused with the dynamo chain which lies behind the front driving chain.
Tighten dynamo clamping strap bolt.
Re-check chain tension.
Replace chaincase inspection cap.
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