lutz B70V Originalbetriebsanleitung Seite 15

Table of Contents
1. General .................................................................................................................17
1.1 Scope of supply ..............................................................................................17
1.2 Year of construction ........................................................................................17
2. Motor types ...........................................................................................................17
2.1 Drive units for type B70V-D, series 12.1 - 75.1 ................................................17
2.2 Drive units for type B70V-SR, series 12.1 - 50.1 ..............................................17
3. Pump tubes ...........................................................................................................17
3.1 Operating limits of the torsion shaft for series 12.1 - 50.1 ................................18
3.2 Resistance .....................................................................................................19
3.3 Operating temperature ....................................................................................19
4. Starting up ............................................................................................................19
4.1 Installation of the B70V ...................................................................................19
4.2 Installation of the B70V-SR .............................................................................19
4.3 Electrical connection of three-phase motors .....................................................19
4.4 Direction of rotation ........................................................................................19
4.5 Operating a three-phase motor with attached frequency converter ....................19
4.6 Mechanical loads on the pump tube ................................................................20
4.7 Maximum immersion depth .............................................................................20
5. Operation ..............................................................................................................20
5.1 Dry running ....................................................................................................20
5.2 Suction funnel ................................................................................................20
5.3 Operation with closed discharge ......................................................................20
6. Maintenance .........................................................................................................20
6.1 Cleaning ........................................................................................................20
6.2 Mechanical seal .............................................................................................20
6.3 Packing gland ................................................................................................20
6.4 Lubrication .....................................................................................................21
6.5 Changing the stator ........................................................................................21
7. Repairs .................................................................................................................21
8. Explosion proof pump tubes....................................................................................22
8.1 General ..........................................................................................................22
8.2 Special conditions ..........................................................................................22
8.3 Equipotential bonding and earthing ..................................................................22
8.4 Conductive hoses / hose connections ..............................................................22
8.5 Explosion protection regulations ......................................................................23
8.6 Classification of zones for explosion hazard areas .............................................23
8.7 Explanation of the zone classification when using
eccentric screw pumps for flammable liquids ...................................................23
8.8 Traceability .....................................................................................................23
Declaration of Conformity ................................................................................27
GB
15