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2-1-12-regulirovka-remnya-privoda-navesnykh-agregatov.html
2.1.12. Adjustment of a belt of a drive of hinged units
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Fig. 2.15. Correctness of landing of a belt in flutes of pulleys
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Check correctness of landing of a belt in flutes of pulleys (fig. 2.15). Make effort of 100 N the reverse (non-working) side of a belt in the middle of a branch between two pulleys. Measure a belt deflection by means of a tension measuring instrument.
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ATTENTION
At installation of a poliklinovy belt be convinced of correctness of landing of racetracks of a belt in flutes of pulleys.
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If at work the belt "squeals" or slips, check surfaces of contact to pulleys and a pulley on lack of wear, damage or stratification. Besides, check degree of a tension of a belt.
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Fig. 2.16. Contour of a belt of a drive of hinged units
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NOTE
The tension of a belt is measured in the middle of a branch of a belt between the specified pulleys.
At installation of a new belt adjust a tension so that it corresponded to average value from an admissible range in a column «for a new belt» tables 2.2. After installation of a belt let's to the engine work during 5 mines or more long, then check compliance of a tension of a belt to nominal rate from a column «at check» tables 2.2.
At adjustment of the belt which was in operation or the new belt which has worked on the engine more than 5 mines, use the nominal rates specified in a column «for the belt which was in operation» tables 2.2.
At periodic check of a tension of a belt use the nominal rates specified in a column «at check» tables 2.2.
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Tension measuring instrument – the type "A"
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Fig. 2.17. A tension measuring instrument – the type "A"
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Do not allow a contact the dial of a measuring instrument something at performance of measurements (fig. 2.17).
Tension measuring instrument – the type "V"
At performance of measurements turn the RESET handle in the direction specified by an arrow, and establish the index in the situation "RESET".
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Fig. 2.18. A tension measuring instrument – the type "V"
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If a measuring instrument of a tension to remove from a belt, the index remains in the situation corresponding to value of a tension. Consider indications after removal of a measuring instrument of a tension (fig. 2.18).
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