Centaur 2001 950, Service Manual

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Wheels, Axles & Chains Centaur Service Manual Centaur Service Manual Wheels, Axles & Chains
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Wheels, Axles & Chains Centaur Service Manual
Initial tension for roller chain power transmission is not as critical as for belt transmissions.
Generally, roller chain is used with adequate slack. Slack on the lower side is most
desirable.
Fig. 8-7 Measuring Chain Slack
For the following cases, slack should be about 2%.
1. Vertical power transmission (idler is required)
2. Distance between the shafts is over 1m (3.3’)
3. Heavy loads and frequent starting
4. Sudden backward rotation
The chain will elongate slightly from the beginning of initial driving from 0.05% to 0.1%
of the full length. As this causes extra slack, adjustment of slack is required. A tensioner
can be used to take up the slack or the shaft can be adjusted. After this adjustment, chain
elongation should be minimal.
WA-15(A)