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 |
WFF65 | PJ8 1355 | 98 | 103 | 301 | 332 | 8,8 | 7,9 | 40 |
WFF75 | PJ8 1355 | 98 | 103 | 301 | 332 | 8,8 | 7,9 | 40 |
WFF100 | PJ8 1355 | 98 | 103 | 301 | 332 | 8,8 | 7,9 | 40 |
WFF135 | PK7 1520 | 65 | 69 | 425 | 489 | 11,5 | 10,8 | 53 |
WFF165 | PK7 1520 | 65 | 69 | 425 | 489 | 11,5 | 10,8 | 53 |
1 Deflection
2 Span length
46