3.10. Check of a state and replacement of belts of the drive of auxiliary units
Check of a state
Too low tension of a belt leads to its increased wear or bystry failure. At too high tension there can be damages of bearings of the units given by this belt. It is necessary to check periodically a condition of a belt, and at detection of defects, to replace a belt.
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- Fingers walk on all length of a belt, feeling it on existence of cracks and stratifications. Also check whether is not present on a belt of attritions and sites, zapolirovanny to gloss. The belt should be examined on both sides that means need of its twisting. Be in passing convinced of lack of a rust, cracks and agnails on pulleys. On a working surface of a belt existence of superficial perpendicular cracks is allowed. If these cracks do not overstep the bounds of one edge and not really deep, to replace a belt there is no need.
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Wear of edges of edges of a driving belt |
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Cross cracks (D) from a reverse side of a belt and peeling of edges (E) |
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Razlokhmachivaniye of side edges (F), cracks (H) and peeling of side edges (G) |
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Separation of edges (J), cracks (K) |
- Make sure of correctness of provision of a belt on pulleys.
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The tension of a belt of the drive of the K/V compressor and generator should be checked on the site between them. |
Replacement
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When replacing a multiridge belt new has to be the same size, as well as old. At installation of a new belt it is necessary to pay attention that the belt adjoins closely to pulleys and it is not displaced concerning their end faces. If the multiridge belt is removed not for the purpose of its replacement, remember or note the direction of its movement that then to establish a belt by the correct party. |
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- Give the hinged and fixing bolts of a belt of the drive of the generator and К/В compressor. Weaken a belt tension an adjusting bolt and take off a belt.
- Establish a new belt of the drive of the generator and K/V compressor in the sequence, the return to removal. Check a belt tension.
- Give hinged and adjusting bolts of a belt of the drive of the pump GUR and take off a belt.
- Establish a new belt of the drive of the pump GUR in the sequence, the return to removal. Check a belt tension.
- Procedures of removal and replacement of a belt of the drive of the pump GUR are provided in the Section Removal and installation of the pump GUR and its driving belt.
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