Lowara LEZ 200-250 UNL 2204 [4/19] Model ler lers lez
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Lowara LEZ 200-250 UNL 2204 [4/19] Model ler lers lez

Lowara LRZ 80-200-U 1852 [4/19] Model ler lers lez
Installation, Operation and Maintenance Instruction
Model LER, LERS, LEZ
LER 100-english page 1
Revision 01
Article No 771073302
Issue 01/2010
TABLE of CONTENTS
Name Plate................................................................. 2
1. General................................................................... 3
1.1 Guarantee ......................................................... 3
2. Safety Regulations ............................................... 3
2.1 Marking of References in the Operating
Instructions .............................................................. 3
2.2 Dangers of non-observance of the Safety
Instructions .............................................................. 4
2.3 Safety Instructions for the Operator / Worker ... 4
2.4 Safety Instructions for Maintenance, Inspections
and Mounting Work ................................................. 4
2.5 Unauthorized Alteration and Spare Parts
Production ............................................................... 4
2.6 Undue Operation ............................................... 4
2.7 Use acc. to Regulations .................................... 4
3. Description ............................................................ 5
3.1 Design ............................................................... 5
3.2 Design Coding System ...................................... 5
3.3 Shaft Sealing ..................................................... 6
3.4 Bearing .............................................................. 6
3.5 Approximate Value for Sound Pressure Level .. 6
3.6 Permitted Nozzle Loads and Torques at the
Pump Nozzles ... ..................................................... 7
3.7 Permitted pressures and temperatures ............. 7
4. Transport, Handling, Storage .............................. 8
4.1 Transport, Handling ........................................... 8
4.2 Storage / Conservation...................................... 8
5. Mounting / Installation ......................................... 8
5.1 Mounting of Pump / Unit .................................... 8
5.2 Connection of Piping to the Pump ..................... 9
5.3 Electric Connection ............................................ 9
5.4 Final check ........................................................ 9
6. Start-up, Operation, Shut down ........................... 9
6.1 Initial start-up ..................................................... 9
6.2 Switch on drive ................................................ 10
6.3 Restarting ........................................................ 10
6.4 Limits of Operation .......................................... 10
6.5 Lubrication ....................................................... 10
6.6 Monitoring ........................................................ 10
6.7 Shutting down .................................................. 11
6.8 Storage / longer periods of non-operation ....... 11
7. Servicing, Maintenance ...................................... 11
7.1 General remarks .............................................. 11
7.2 Mechanical seals ............................................. 11
7.3 Motor bearings ................................................. 11
7.4 Cleaning of pump ............................................ 11
8. Dismantling and repair of pump ........................ 11
8.1 General remarks .............................................. 11
8.2 General ............................................................ 12
9. Spare parts, Spare pumps .................................. 12
9.1 Spare parts ...................................................... 12
9.2 Stand-by pumps ............................................... 12
10. Faults - Causes and Solutions ......................... 12
Sectional drawing LER, LERS...................................14
Sectional drawing LEZ...............................................15
Weights......................................................................16

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