User manual Pomac PLP Lobe pump
6 CE/PLP (1406) EN-12
7.8.1. Disassembly of a spring loaded safety valve ................................................................... 31
7.8.2. Disassembly of an air loaded safety valve ...................................................................... 32
7.9. Parts inspection ....................................................................................................................... 32
7.10. Gearbox assembly .................................................................................................................. 33
7.11. Adjusting the axial rotor clearance .......................................................................................... 35
7.12. Shaft seal assembly ................................................................................................................ 37
7.12.1. Single mechanical seal assembly, types M1, M3 and M4 ........................................... 37
7.12.2. Double mechanical seal assembly, types M2, M5, M6 and M7 ................................... 37
7.12.3. O-ring seal assembly, types O1 and O2 ...................................................................... 37
7.12.4. Lip seal assembly, type L ............................................................................................. 38
7.13. Rotor assembly ....................................................................................................................... 38
7.14. Adjusting the timing of ‘quattro lobes’ ..................................................................................... 39
7.15. Front cover assembly .............................................................................................................. 39
7.16. Gearbox assembly .................................................................................................................. 40
7.17. Assembly of a safety valve ..................................................................................................... 41
7.17.1. Assembly of a spring-loaded safety valve .................................................................... 41
7.17.2. Assembly of an air-loaded safety valve ....................................................................... 41
7.18. Filling with oil ........................................................................................................................... 41
8. Closing down .................................................................................................................................. 42
8.1. Dismantling ............................................................................................................................. 42
8.2. Storage .................................................................................................................................... 42
8.3. Disposal .................................................................................................................................. 42
9. Technical data ................................................................................................................................ 43
9.1. Oil types .................................................................................................................................. 43
9.2. Oil quantities ........................................................................................................................... 43
9.3. Dimensions ............................................................................................................................. 44
9.4. Sectional drawing .................................................................................................................... 45
9.5. Parts lists ................................................................................................................................. 46
9.5.1. Part list with article numbers PLP 1 ................................................................................. 46
9.5.2. Part list with article numbers PLP 15 ............................................................................... 47
9.5.3. Part list with article numbers PLP 2 ................................................................................. 48
9.5.4. Part list with article numbers PLP 3 ................................................................................. 49
9.5.5. Part list with article numbers PLP 4 ................................................................................. 50
9.6. Materials specification ............................................................................................................. 51
9.7. Shaft seals .............................................................................................................................. 52
9.7.1. Single mechanical seal , type M1 .................................................................................... 52
9.7.2. Single mechanical seal , type M4 .................................................................................... 53
9.7.3. Double mechanical seal, type M2 .................................................................................... 54
9.7.4. Double mechanical seal, type M5 .................................................................................... 55
9.7.5. Double mechanical seal, type M6 .................................................................................... 56
9.7.6. Double mechanical seal, type M7 .................................................................................... 57
9.7.7. Single O-ring seal, type O1 .............................................................................................. 58
9.7.8. Double O-ring seal, type O2 ............................................................................................ 59
9.7.9. Lip seal, type L3 ............................................................................................................... 60
9.8. Spring loaded safety valve ...................................................................................................... 61
9.9. Air loaded safety valve ............................................................................................................ 62
10. Trouble shooting ......................................................................................................................... 63