7
Annual maintenance
Belt tension:
Verify that the belts are running in the middle of the basket pulley.
Verify the belt tension according to the table below. Belt tension measurements should be taken as close as possible to the center of the belt span (see figure).
Belt tension testing table
Model | Belt | Frequency (Hz) | Tension force (N) | Deflection (mm) | Deflection force | |||
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| at MIN | at MAX |
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| MIN | MAX | MIN | MAX | tension | tension | MAX |
WF150 | PJ10 1600 | 90 | 95 | 515 | 575 | 8,2 | 7 | 40 |
WF185 | PJ10 1600 | 90 | 95 | 515 | 575 | 8,2 | 7 | 40 |
WF235 | PK8 2050 | 60 | 65 | 633 | 748 | 12 | 10,8 | 60 |
WF305 | PK8 2050 | 65 | 70 | 748 | 873 | 10,8 | 9,5 | 60 |
WF400 | PK8 2050 | 65 | 70 | 748 | 873 | 10,8 | 9,5 | 60 |
1 Deflection
2 Span length
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