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152 WILO SE 2019-01
9 Maintenance and repair........................................................................................................................................................ 181
9.1 Personnel qualifications...............................................................................................................................................................................181
9.2 Operator responsibilities..............................................................................................................................................................................181
9.3 Labelling of the screw plugs........................................................................................................................................................................181
9.4 Operating fluid ..............................................................................................................................................................................................181
9.5 Maintenance intervals..................................................................................................................................................................................182
9.6 Maintenance measures ................................................................................................................................................................................182
9.7 Repairs............................................................................................................................................................................................................187
10 Faults, causes and remedies................................................................................................................................................ 189
11 Spare parts............................................................................................................................................................................. 192
12 Disposal.................................................................................................................................................................................. 193
12.1 Oils and lubricants.........................................................................................................................................................................................193
12.2 Protective clothing .......................................................................................................................................................................................193
12.3 Information on the collection of used electrical and electronic products............................................................................................193
13 Appendix................................................................................................................................................................................ 193
13.1 Tightening torques.......................................................................................................................................................................................193
13.2 Operation with frequency converter..........................................................................................................................................................194
13.3 Ex rating .........................................................................................................................................................................................................194
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