
Doc. No. 0179 –status 03/2017
Operating instructions
iLobe
Rotary Lobe Pump
Date: 15.03.2017
Page 3 of 63
Doc. No. 0179
Est: D. Lünnemann /
W. Stein
10.13.1 Overview barrier pressure tank ................................................................................................. 22
10.13.2 Assembly and connection of the tank........................................................................................ 23
10.13.3 Selection of barrier fluid............................................................................................................. 24
10.13.4 Filling and emptying the tank..................................................................................................... 25
10.14 Direction of rotation................................................................................................................ 26
10.15 Connection of the drive ......................................................................................................... 26
10.16 Filling with oil.......................................................................................................................... 27
11 Commissioning.......................................................................................................................... 28
11.1 Cleaning of the system........................................................................................................... 28
11.2 Control.................................................................................................................................... 28
11.3 Start-up................................................................................................................................... 29
11.4 During operation..................................................................................................................... 29
11.5 To stop the pump for a short period....................................................................................... 29
12 Maintenance............................................................................................................................... 30
12.1 General................................................................................................................................... 30
12.2 Oil change.............................................................................................................................. 30
13 Disassembly / Assembly........................................................................................................... 30
13.1 Order of spare parts............................................................................................................... 30
13.2 Precautions ............................................................................................................................ 31
13.3 Special tools........................................................................................................................... 31
13.3.1 Rotor key................................................................................................................................... 31
13.3.2 Auxiliary tool for assembly......................................................................................................... 31
13.4 Pump drainage....................................................................................................................... 31
13.5 Oil drainage............................................................................................................................ 32
13.6 Dismantling of the pump ........................................................................................................ 32
13.7 Disassembly of the pump....................................................................................................... 32
13.7.1 Disassembly of the rotors.......................................................................................................... 33
13.7.2 Disassembly of the shaft seals.................................................................................................. 33
13.7.3 Disassembly of the gearbox...................................................................................................... 35
13.7.4 Control of the parts.................................................................................................................... 37
13.8 Assembly of the pump............................................................................................................ 38
13.8.1 Mechanical seals....................................................................................................................... 40
13.8.1.1 Single mechanical seals........................................................................................... 40
13.8.1.2 Lip seals.................................................................................................................... 42
13.8.1.3 Double mechanical seals.......................................................................................... 42
13.9 Tightening Torques: ............................................................................................................... 45
14 Decommissioning...................................................................................................................... 46
14.1 Disassembly........................................................................................................................... 46
14.2 Storage................................................................................................................................... 46
14.3 Disposal.................................................................................................................................. 47
15 Technical data............................................................................................................................ 47
15.1 Oil types ................................................................................................................................. 47
15.2 Oil quantities .......................................................................................................................... 47