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Xylem LOWARA Pa, Installation,Operation And Maintenance Instruction

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Xylem LOWARA Pa Installation,Operation And Maintenance Instruction Download Page 13

Operating instructions 

 

Adjustment using dial gauge: 

 
 
 
 
 
 
 
 

 
Adjustment using precision ruler: 
            Normal coupling                                                 Expansion coupling 

     

•

 

Check/measure the alignment at several points using a precision ruler and sensor. If a dial gauge 
is used, one coupling side is to be turned. 

•

 

When aligning, keep the parallel and angular displacement of the shaft ends to a minimum. The 
alignment can be more precise if a dial gauge is used. The permitted displacement for your 
coupling is given in the following table (this only applies for couplings supplied originally by 
us). You will find the exact designation for your coupling on the Data Sheet. 

 

Permitted displacement for flexible couplings 

Design ..GK, A..FK, B..FK, H..FK 

 

 
 

 

 

 

 

 

Pa 100/3-en                                                                                                                                             

11 

Summary of Contents for LOWARA Pa

Page 1: ...llation Operation and Maintenance Instruction Translation of the Original Operation Manual en Keep for further use Pay attention to this operating instruction before the delivery installation start up a s o VOGEL SERIES ...

Page 2: ...Xylem Service Austria GmbH Ernst Vogel Straße 2 A 2000 Stockerau Telefon 43 0 2266 604 Fax 43 0 2266 65311 E Mail info austria xyleminc com Internet www xylemaustria com ...

Page 3: ...ation Bearing sizes and oil quantities Grease lubrication 3 Transport Handling and Storage 3 1 Transport Handling 3 2 Storage 4 Installation Operation 4 1 Assembly and connection of pump 4 2 Installation and alignment of coupling Installation Alignment Permitted displacement for flexible couplings 4 3 Connecting the pipes to the pump Suction and discharge pipe Auxiliary pipes 4 4 Electrical connec...

Page 4: ...mp 6 Longer periods of non operation 6 1 Drained pumps 6 2 Filled pumps 7 Faults Causes and Solutions 8 Repairs 9 Spare Parts Spare Pumps 9 1 Spare parts Ordering spare parts 9 2 Stand by pumps 10 Plant Manager List 11 Log Book Appendix page 17 page 18 page 21 page 22 page 23 page 24 Pa 100 3 en 2 ...

Page 5: ...ty it is essential that these Operating Instructions and the operating conditions and working limits given in the Confirmation of Order are also passed on in full These Operating Instructions do not take into account all design details and variants nor all the possible chance occurrences and events which might happen during installation operation and maintenance Alterations or changes to the machi...

Page 6: ...ator must confirm this by signing the Plant Manager List see Point 10 These Operating Instructions do not refer to the General Regulations on Accident Prevention or local safety and or operating regulations The operator is responsible for complying with these if necessary by calling in additional installation staff The safety instructions contained in these Operating Instructions have the followin...

Page 7: ...pressure All parts must be allowed to return to ambient temperature Make sure that no one can start the motor during such work It is essential that the procedure for stopping the system described in the Operating Instructions is observed Pumps or pump systems that carry media that are dangerous to health must be decontaminated before being taken apart Safety Data Sheets for the various liquids han...

Page 8: ...e is given in the sheets of characteristic curves We can supply leaflets for calculation of NPSH values on request Sealing Flushing Cooling Suitable facilities for the regulation and monitoring of sealing flushing or cooling are to be provided When handling dangerous liquids or if temperatures are high care should be taken to ensure that the pump ceases operating if the sealing flushing or cooling...

Page 9: ...r pump under the Notes on construction Instructions on packing a stuffing box and on installing and operating mechanical seals are given in the relevant detail drawings in the Appendix See Appendix Operations for when the stuffing boxes and mechanical seals should be used You will find more information on stuffing boxes and mechanical seals and the risks of accidents that these may involve under P...

Page 10: ... grease and are thus ready for use If the type of grease is changed check that it is compatible with the left over oil 3 Transport Handling Storage 3 1 Transport Handling Check the pump pump unit immediately upon delivery receipt of despatch for damage or missing parts The pump pump unit must be transported carefully and by competent personnel Avoid serious impacts Keep the pump pump unit in the s...

Page 11: ... flanges or plugs see also chapter 6 Longer periods of non operation 4 Installation Operation 4 1 Assembly and connection of pump The pump and motor pump unit must be provided with a shared foundation base made in steel or cast iron or a welded steel profile frame where this does not exist already or if it is not included in the delivery This foundation base must be placed on a foundation which ca...

Page 12: ...s between the pump motor and the foundation base fit snugly 4 2 Installation and Alignment of Coupling Make sure that nobody can start the motor during work on the coupling According to Accident Prevention Regulations the pump unit may only be operated when the coupling guard is mounted Installation If the pump unit is not completely assembled until it reaches its place of use and no separate oper...

Page 13: ... be turned When aligning keep the parallel and angular displacement of the shaft ends to a minimum The alignment can be more precise if a dial gauge is used The permitted displacement for your coupling is given in the following table this only applies for couplings supplied originally by us You will find the exact designation for your coupling on the Data Sheet Permitted displacement for flexible ...

Page 14: ...creased wear on bearings couplings and shaft seals 4 3 Connecting the pipes to the pump Suction and discharge pipe The pipes must be of a size and design that liquid can flow freely into the pump and that the pump functions without problems Particular attention is to be paid to ensuring that suction pipes are airtight and that the NPSH values are observed Lay the suction pipe in the horizontal sec...

Page 15: ...es and quantities are necessary The position and size of connections to the pump are given in the Appendix Summary of Screwed Connections The relevant detail drawing of the shaft sealing contains a diagrammatic proposal for the pipework and fittings This proposal does not take into account the safety requirements for each specific pump unit Point 1 4 Sealing flushing cooling must be observed as re...

Page 16: ...witch on any sealing flushing or cooling devices that are provided See Data Sheet for quantity and pressure Open slide valve in suction intake pipe Set discharge side slide valve to approx 25 of rated flow quantity With pumps with a discharge branch rated width less than 200 the slide valve can remain closed when starting up see also Point 1 4 Minimum quantities Check direction of rotation by swit...

Page 17: ... should be max 50 C above ambient temperature and should not exceed 90 C check at least once a week Check oil level at least once a week and top up if necessary Check leakage rate from packings at least once a week see Point 4 5 Packings Check the regulating and monitoring facilities of any sealing flushing or cooling systems once a week to ensure that they function properly Outgoing cool water sh...

Page 18: ...p is dismantled Before starting to disassemble the pump unit make sure that it cannot be switched on again The pump casing must be depressurised and empty All valves in the suction intake and discharge pipes must be closed All components must have cooled down to ambient temperature 5 Maintenance Servicing Work should only be carried out on the pump or pump unit when it is not in operation You must...

Page 19: ...ulations Grease lubrication Bearings on pumps that are lubricated for life require no maintenance If the pump is left non operational for any length of time the grease in the bearings should be changed after four years Couplings Check the play in the coupling components regularly approx every 1000 operating hours If wear is heavy it must be assumed that the motor is not properly aligned with the p...

Page 20: ...anges the pump the design data on the Data Sheet and Points 1 2 1 4 of these Operating Instructions should be particularly taken into account If necessary the written agreement of the manufacturer must be obtained Faults Code no for cause and method of repair Discharge too low 1 4 6 7 8 9 10 11 12 13 14 15 17 Discharge stops after a time 8 10 11 12 30 Head too low 2 4 6 7 8 9 10 11 12 13 14 15 30 ...

Page 21: ...mp and or pipes not completely filled with liquid fill vent 8 Pump or suction intake pipe blocked clean 9 Air pocket in pipeline vent improve course of pipe 10 NPSH of system too small increase liquid level increase admission pressure reduce resistance in the intake suction pipe change course and rated width open shutoff valves clean filters 11 Air being sucked in increase liquid level check sucti...

Page 22: ... packing material use suitable material check shaft or shaft sleeve for damage beforehand 21 Deposits on mechanical seal clean replace mechanical seal if necessary if necessary provide additional rinsing or quench 22 Impeller out of balance remove blocks deposits replace if broken or unevenly worn check shafts to ensure that they are running true 23 Coupling not aligned align pump unit better 24 C...

Page 23: ... rings adjust in line with the system pressure intake pressure given on ordering 33 System related vibrations resonance seek assistance 34 Manometer indicator wrong check manometer get rid of blockages put manometer in suitable place no flow distortion or burbling 8 Repairs Repairs to the pump or pump system may only be carried out by authorised skilled personnel or by the manufacturer s specialis...

Page 24: ...3 4 5 6 7 90 i no of steps To ensure optimum availability we recommend that suitable quantities of spare parts are held in stock especially if these are made from special materials and in the case of mechanical seals because of the longer delivery times Ordering spare parts When ordering spare parts please supply the following information Type ________________________ Order no ____________________...

Page 25: ...low to confirm that he has received read and understood these Operating Instructions He undertakes to follow the instructions conscientiously If these instructions are not followed the manufacturer s guarantee and liability shall cease to apply Name Date Signature Pa 100 3 en 23 ...

Page 26: ...ator shall duly enter all maintenance and service work that has been carried out and shall see that the person responsible confirms such work by signing below maintenance work Date Signature Plant operator Confirmed by person responsible Pa 100 3 en 24 ...

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