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3-12-7-cep-privoda-raspredelitelnogo-vala.html
3.12.7. A chain of a drive of a camshaftThe adaptation 67.7824.9521 for check of deterioration (extract) of a chain
1 – a roller;
2 – an adjusting nut; |
3 – a counterbalance |
The scheme of check of deterioration (extract) of a chain
Check and replacement
| PERFORMANCE ORDER |
| 1. Wash out a chain in kerosene, and then check up a condition of its links. |
| 2. On rollers and cheeks are not supposed сколы, cracks and other damages. |
| 3. At work of the engine the chain is extended. It is considered efficient if натяжитель provides its tension, i.e. If the chain was extended no more than on 4 mm. |
| 4. A chain extract check on the adaptation 67.7824.9521 (fig. the Adaptation 67.7824.9521 for deterioration check (an extract) chains see), having two step rollers 1 which the chain is put on. By means of a counterbalance 3 chain is stretched by effort 294 Н (30 кгс) or 147 Н (15 кгс). The adjusting nut 2 provides parallelism of an axis of a counterbalance concerning the adaptation basis. |
| 5. Stretch a chain effort 294 Н (30 кгс), having put a counterbalance in extreme right position, then reduce effort on 147 Н (15 кгс), having shifted a counterbalance in extreme left position. Repeat once again both operations and define a chain extract on distance L (fig. the Scheme of check of deterioration (an extract) chains see) between axes of rollers. Having measured by a calliper distance between diameters d rollers and having added to it diameter d, receive distance L between axes of rollers. |
6. For a new chain distance L between axes of rollers makes
| 485,755 |
0,5 |
Mm. If the chain was extended to 490 mm, it is necessary to replace it. |
| -0,1 |
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| 7. Before installation on the engine grease a chain with engine oil. |
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