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4 WILO SE 2019-01
9 Maintenance and repair.......................................................................................................................................................... 40
9.1 Personnel qualifications................................................................................................................................................................................. 41
9.2 Operator responsibilities................................................................................................................................................................................ 41
9.3 Labelling of the screw plugs.......................................................................................................................................................................... 41
9.4 Operating fluid ................................................................................................................................................................................................ 41
9.5 Maintenance intervals.................................................................................................................................................................................... 41
9.6 Maintenance measures .................................................................................................................................................................................. 42
9.7 Repairs .............................................................................................................................................................................................................. 51
10 Faults, causes and remedies .................................................................................................................................................. 53
11 Spare parts............................................................................................................................................................................... 56
12 Disposal.................................................................................................................................................................................... 57
12.1 Oils and lubricants........................................................................................................................................................................................... 57
12.2 Protective clothing .........................................................................................................................................................................................57
12.3 Information on the collection of used electrical and electronic products.............................................................................................. 57
13 Appendix.................................................................................................................................................................................. 57
13.1 Tightening torques ......................................................................................................................................................................................... 57
13.2 Operation with frequency converter............................................................................................................................................................ 58
13.3 Ex rating ........................................................................................................................................................................................................... 58
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