en
4 WILO SE 2017-12
9 Maintenance and repair.......................................................................................................................................................... 28
9.1 Personnel qualifications................................................................................................................................................................................. 29
9.2 Operator responsibilities................................................................................................................................................................................ 29
9.3 Operating fluid ................................................................................................................................................................................................ 29
9.4 Maintenance intervals.................................................................................................................................................................................... 29
9.5 Maintenance measures .................................................................................................................................................................................. 30
9.6 Repairs .............................................................................................................................................................................................................. 32
10 Faults, causes and remedies .................................................................................................................................................. 33
11 Spare parts............................................................................................................................................................................... 36
12 Disposal.................................................................................................................................................................................... 36
12.1 Oils and lubricants........................................................................................................................................................................................... 36
12.2 Protective clothing .........................................................................................................................................................................................36
12.3 Information on the collection of used electrical and electronic products.............................................................................................. 36
13 Appendix.................................................................................................................................................................................. 36
13.1 Tightening torques ......................................................................................................................................................................................... 37
13.2 Operation with frequency converter............................................................................................................................................................ 37
13.3 Ex rating ........................................................................................................................................................................................................... 38