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Allweiler NAM-F Series, Руководство по эксплуатации

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Troubleshooting

Fault number

1

2

3

4

5

6

7

8

9

Cause

Remedy

–

X

–

X

–

X

–

–

–

Pumped medium temperature too high:
pump is cavitating

Increase the supply pressure.
Lower the temperature.
Consult the manufacturer.

–

X

–

X

–

–

–

–

X

Viscosity or speci

fi

c gravity of the pumped

medium outside the range speci

fi

ed for

the pump

Consult the manufacturer.

–

X

–

X

–

–

–

–

–

Geodetic differential head and/or pipe

fl

ow

resistances too high

Remove sediments from the pump
and/or pressure pipe.
Install a larger impeller and consult the
manufacturer.

–

X

–

–

X

X

–

–

–

Pressure-side armature not opened
suf

fi

ciently

Open the pressure-side armature.

X

X

–

–

X

X

–

–

–

Pressure pipe blocked

Clean the pressure pipe.

X

X

–

X

–

X

–

–

–

Pump running in the wrong direction

Swap any two phases on the motor.

X

X

–

X

–

–

–

–

–

Motor speed insuf

fi

cient

Compare the required motor speed
with the speci

fi

cations on the pump

type plate. Replace the motor if
necessary.
Increase the motor speed if speed
control is available.

–

X

–

X

–

X

X

–

–

Pump parts worn

Replace the worn pump parts.

–

–

X

X

–

X

–

–

X

Pressure-side armature opened too wide

Throttle down at the pressure-side
armature.
Machine the impeller down. Consult
the manufacturer and adjust the
impeller diameter.

–

–

X

–

–

X

–

–

X

Geodetic differential head, pipe

fl

ow

resistances and/or other resistances lower
than speci

fi

ed

Throttle down the

fl

ow rate at the

pressure-side armature. Observe the
minimum

fl

ow rate.

Machine the impeller down. Consult
the manufacturer and adjust the
impeller diameter.

–

–

X

–

X

–

–

–

–

Viscosity lower than expected

Machine the impeller down. Consult
the manufacturer and adjust the
impeller diameter.

–

–

X

–

X

X

X

–

X

Motor speed too high

Compare the required motor speed
with the speci

fi

cations on the pump

type plate. Replace the motor if
necessary.
Reduce the motor speed if speed
control is available.

–

–

X

–

X

X

–

–

X

Impeller diameter too large

Throttle down the

fl

ow rate at the

pressure-side armature. Observe the
minimum

fl

ow rate.

Machine the impeller down. Consult
the manufacturer and adjust the
impeller diameter.

X

X

–

X

–

X

–

–

–

Impeller out of balance or blocked

Dismount the pump and inspect it for
dry-running damage.
Clean the impeller.

467.0006 GB – 550 342

BA-2006.03

NAM-F series

23

Содержание NAM-F Series

Страница 1: ...BA 2006 03 Print No 550 342 VM No 467 0006 GB ALLWEILER AG Werk Radolfzell Postfach 1140 Allweilerstr 1 78301 Radolfzell Germany Phone 49 0 7732 86 0 Fax 49 0 7732 86 436 Email info allweiler com Inte...

Страница 2: ...es 14 5 4 1 Installing auxiliary pipes if available 14 5 4 2 Installing the suction pipe 14 5 4 3 Installing the pressure pipe 14 5 4 4 Inspection for stress free pipe connections 14 5 5 Electrical co...

Страница 3: ...her applicable documents and their purpose 4 Tab 3 Warnings and consequences of disregarding them 5 Tab 4 Symbols and their meaning 5 Tab 5 Technical terms and their meaning 5 Tab 6 Measures to be tak...

Страница 4: ...e other applicable documents especially all safety instructions and warnings Tab 1 Target groups and their duties 1 2 Other applicable documents Document Purpose Order data sheet Technical specificati...

Страница 5: ...damage Tab 3 Warnings and consequences of disregarding them Symbol Meaning Safety warning sign Take note of all information highlighted by the safety warning sign and follow the instructions to avoid...

Страница 6: ...motor stay within the agreed density order data sheet Lower densities are allowed Adapt the auxiliary systems accordingly When pumping liquids containing solids ensure that the limits for the proporti...

Страница 7: ...the electrical system Make sure trainee personnel is supervised by a specialist technician when working on the pump Safety equipment Provide the following safety equipment and verify their functional...

Страница 8: ...1 Pump type 2 Year of manufacture 3 Differential head 4 Pump NPSH value 5 Kinematic viscosity 6 Power consumption 7 Density 8 Motor speed 9 Flow rate 10 Serial number 3 1 2 Pump type code 1 2 3 4 NAM...

Страница 9: ...3 4 1 Automatic aspirator if available Information on the material functional description and electrical connection A25 automatic aspirator operat ing manual 1 Fig 4 Automatic aspirator extension exam...

Страница 10: ...o the pump aggregate Lift the pump aggregate properly 4 2 Preservation Not necessary for non rusting materials CAUTION Material damage due to inappropriate treatment for stor age Treat the pump proper...

Страница 11: ...Do not clean the bearing areas with a water or steam jet CAUTION Damage to seals due to incorrect cleaning agent Ensure the cleaning agent does not corrode the seals 1 Choose a suitable cleaning agent...

Страница 12: ...by knocks and bumps Keep the coupling halves properly aligned when pushing on the motor Do not knock or hit any components of the pump 1 Smear a very thin coat of molybdenum disulfide e g Molykote on...

Страница 13: ...izing cross section and direction changes 1 Avoid radii of curvature of less than 1 5 times the nominal pipe diameter 2 Avoid abrupt changes of cross section along the piping system 5 3 7 Provide safe...

Страница 14: ...150 mm with small lever 3 Make sure the flange surfaces are parallel 4 Reconnect the pipe connecting flanges to the pump 5 5 Electrical connection DANGER Risk of death due to electric shock Have all e...

Страница 15: ...urer s specifications Checking the alignment of the coupling Implements tools and materials Dial gage can be used for couplings with a spacer piece Other suitable tools e g laser alignment instrument...

Страница 16: ...rate 5 Verify that no pipe connections are leaking 6 Start suction operation A25 operating manual manufac turer instructions 6 2 Start up 6 2 1 Switching on Pump set up and connected properly Motor se...

Страница 17: ...medium Page 17 emptied Close the suction side and pressure side armatures dismounted Isolate the motor from its power supply and secure it against unauthorized switch on put into storage Follow the st...

Страница 18: ...ce antifriction bearings Tab 8 Measures to be taken after prolonged shutdown periods 2 Carry out all steps as for the initial start up 6 2 Start up Page 16 6 5 Operating the stand by pump Stand by pum...

Страница 19: ...ities and aggressive ambient and process conditions reduce the service life of antifriction bearings Mechanical seals are subject to natural wear which strongly depends on the actual operating conditi...

Страница 20: ...y 2 Take necessary measures depending on the required repair work as listed in the table below when returning the pump to the manufacturer Repair carried out Measure for return at the customer s premi...

Страница 21: ...disks with grease Make sure you use the correct type and mini mum amount of grease when filling the bearing 9 2 6 Lubricants Page 30 Fill the cavities between the rolling elements up to 40 with greas...

Страница 22: ...al X X Supply suction pipe not fully opened Open the armature X X X X Supply suction pipe pump or suction screen blocked or encrusted Clean the supply suction pipe pump or suction screen X X X Supply...

Страница 23: ...n pump parts X X X X Pressure side armature opened too wide Throttle down at the pressure side armature Machine the impeller down Consult the manufacturer and adjust the impeller diameter X X X Geodet...

Страница 24: ...y Tighten the connecting bolts X Mechanical seal worn Replace the mechanical seal X Housing seal defective Replace the housing seal X Shaft sleeve is penetrated Replace the shaft sleeve and or O ring...

Страница 25: ...01 Nilos ring 516 02 Nilos ring 525 01 Spacer sleeve Part no Designation 551 01 Spacing washer 557 01 Balance disk 565 01 Rivet 672 01 Vent 681 01 Coupling guard 710 01 Pipe 710 02 Pipe 731 02 Pipe f...

Страница 26: ...endix Part no Designation 936 01 Spring ring 940 01 Shaft key 940 02 Shaft key 971 01 Name plate Tab 13 Designations of components according to part numbers 26 NAM F series BA 2006 03 467 0006 GB 550...

Страница 27: ...Appendix 9 1 3 NAM F series sectional drawings Fig 9 U3 D Unbalanced mechanical seal Base installation 467 0006 GB 550 342 BA 2006 03 NAM F series 27...

Страница 28: ...nt version Fig 11 Attachment of the pump feet to the bell housing 551 01 516 02 321 04 321 03 516 01 934 01 Fig 12 Bearing and impeller retention version for bearing bracket size 530 28 NAM F series B...

Страница 29: ...ive industrial atmosphere or close to sea 12 Tectyl 506 EH 48 12 Tab 15 Valvoline preservatives 9 2 3 Sound pressure levels Measuring conditions Distance to the pump 1 m Operation cavitation free Moto...

Страница 30: ...g torques 9 2 5 Cleaning agents Application area Cleaning agents Foodstuffs and drinking water sector E g spirit Ritzol 155 strong alkaline soapy solution steam jet for individual parts only Other Ben...

Страница 31: ...321 01 321 02 321 03 321 04 Groove ball bearing Groove ball bearing Groove ball bearing Groove ball bearing 2 1 1 2 2 3 4 50 1 Bearing bracket complete consisting of Shaft bearing bearing cover etc 1...

Страница 32: ...Appendix 32 NAM F series BA 2006 03 467 0006 GB 550 342...

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