BUSCH DOLPHIN LA 0053-0143 A Installation And Operating Instructions Manual Download Page 23

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Size 6, 7, 8

940,2

2nd stage impeller key

940,1

1st stage impeller key

940

Shaft end key

923

Bearing locknut

922

Impeller locknut

921

Washer

920,1

Crossover pipe nut

920

Tie rod nut

914

Socket head cap screw

905

Tie rod

903,1

Plug

902

Stud

901,2

Bearing cap bolt

901,1

Bearing seal housing bolt

704,1

Counterflange blank

704

Counterflange

636

Grease nipple

521

Impeller spacer

507

Flinger ring

505

Abutment ring

461

Gland packing

458

Lantern ring

452

Gland follower

433

Mechanical seal

421

Oil seal

400,8

Crossover pipe gasket

400,5

End casing gasket

400,2

Bearing seal housing gasket

400,1

Inter plate gasket

400

Impeller casing gasket

360,1

N.D.E. bearing cap

360

D.E. bearing cap

357

Bearing seal housing

320

Bearing

230,1

2nd stage impeller

230

1st stage impeller

210

Shaft

147

Crossover pipe

140

Joint / intermediate plate

137,4

Discharge side plate

137,3

Suction inter plate

137,2

Discharge inter plate

137,1

Suction side plate

110,1

2nd stage impeller casing

110

1st stage impeller casing

107

Discharge end casing

106

Suction end casing

LA 0053-1111 A, LB 0063-1011 A

Sectional Drawings and Spare Parts Lists

0870150638 / 091222

page 22

Summary of Contents for DOLPHIN LA 0053-0143 A

Page 1: ...0870150638 A0001 26 10 2021 Original instructions DOLPHIN LA 0053 1111 A DOLPHIN LB 0063 1011 A ...

Page 2: ... Dismantling 11 Reassembly 11 Overhaul 12 Removal from Service 12 Temporary Removal from Service 12 Recommissioning 12 Dismantling and Disposal 12 Spare Parts 12 Troubleshooting 13 EU Declaration of Conformity 16 Sectional Drawings and Spare Parts Lists 18 Technical Data 26 Preface LA 0053 1111 A LB 0063 1011 A 0870150638 page 2 Preface Congratulations on your purchase of the Busch vacuum pump Wit...

Page 3: ...n drive end the liquid ring moves away from the hub making space for gas to be drawn in through the intake port e approx from the 11 o clock to the 8 o clock position The chamber surrounded by the hub the liquid ring and two adjacent impeller blades achieves its maximum volume in the 6 o clock position As the impeller continues to rotate the liquid ring moves closer to the impeller hub the volume ...

Page 4: ...In case the vacuum pump is packed in a cardboard box with inflated cushions Remove the inflated cushions from the box In case the vacuum pump is in a cardboard box cushioned with rolled corrugated cardboard Remove the corrugated cardboard from the box In case the vacuum pump is laid in foam Remove the foam In case the vacuum pump is bolted to a pallet or a base plate Remove the bolting between the...

Page 5: ...control the level in the operating liquid separator and if appropri ate cool the operating liquid to a temperature at which no cavita tion will occur Operating the vacuum pump close to its ultimate pressure requires large quantities of cool operating liquid In order to avoid cavitation it is usually more prudent to limit the minimum working pressure The pressure on the suction side of the vacuum p...

Page 6: ...led with too much operating liquid With a manual operating liquid shut off valve it is important to open valve immediately after starting the motor and to close the valve immediately before switching the motor off Version with lateral liquid separator Version with top liquid separator Circuit diagram Alternative tank with float valve Partial Recovery The operating liquid enters and leaves the vacu...

Page 7: ...e vacuum pump with the housing full of water which could overload the vacuum pump and the drive motor The heat exchanger W must be capable of removing approx 85 per cent of the drive power and possibly appearing condensation heat Version with lateral liquid separator Version with top liquid separator Circuit diagram Mounting Position and Space Make sure that the following ambient conditions will b...

Page 8: ...rger line sizes in order to avoid a loss of efficiency and an overload of the vacuum pump Seek advice from your Busch representative Make sure that the discharge line either slopes away from the vacuum pump or provide a liquid separator or a drip leg with a drain cock so that no liquids can back up into the vacuum pump Electrical Connection Controls Make sure that the stipulations acc to the EMC D...

Page 9: ...veral days of operation Check the tension again Insufficient tension is often evidenced by slippling squealing at start up Recording of Operational Parameters As soon as the vacuum pump is operated under normal operating conditions Measure the drive motor current and record it as reference for fu ture maintenance and troubleshooting work Operation Notes Use The vacuum pump is intended for the suct...

Page 10: ...e operating liquid shall reach the middle of the shaft only when the vacuum pump is to be started Make sure that the operating liquid reaches the middle of the shaft when the vacuum pump is to be started Pressure Control At very low pressures and sufficiently high temperatures the operating liquid can locally transfer into the vapour phase creating bubbles within the operating liquid As the pressu...

Page 11: ...e it See the sectional drawings for cross reference Series 1 Gland packing or cartridge mechanical seal Series 2 3 Mechanical seal Dismantling Disconnect from electrical supply and process piping Drain as much operating liquid from the vacuum pump as possible Stand the vacuum pump vertically with the drive end upwards Mark the castings to ensure the correct reassembly and alignment Remove the mani...

Page 12: ...up except for the ball bearings mechanical seals and bearing caps The abutment ring enables the impellers to be spaced equally from the plates The distance from the shoulder on the shaft to the bearing location in the housing has to be found This is done with the use of a depth gauge as shown below The abutment width is determined as the mean value of A when the shaft is moved in both directions l...

Page 13: ...cal seal 433 0 Gas or liquid channels are blocked Dismantle and clean the vacuum pump In case a screen is installed in the suction connection a The screen in the suction connection a is partially clogged Clean the screen If cleaning is required too frequently install a filter upstream The filter on the suction connection a is par tially clogged Clean or replace the inlet air filter respectively Pa...

Page 14: ...after commission ing Loose connection s in the drive motor termi nal box Not all drive motor coils are properly con nected The drive motor operates on two phases only Check the proper connection of the wires against the connection diagram Tighten or replace loose connections The operating liquid level is too high Adjust the regulating valves Density or viscosity of the operating liquid too high Th...

Page 15: ...e permitted ambient temperatures Temperature of the inlet gas too high Observe the permitted temperatures for the inlet gas Insufficient gas transfer Mains frequency or voltage outside tolerance range Provide a more stable power supply Partial clogging of filters or screens Partial clogging in the suction discharge or pressure line Remove the clogging Long suction discharge or pressure line with t...

Page 16: ...rd zones being reached by the upper and lower limbs EN 1012 1 2010 EN 1012 2 1996 A1 2009 Compressors and vacuum pumps Safety requirements Part 1 and Part 2 EN ISO 2151 2008 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 EN 60204 1 2018 Safety of machinery Electrical equipment of machines Part 1 General re quirements EN IEC 61000 6 2 2019 Electromagnetic comp...

Page 17: ...ery Safety distances to prevent hazard zones being reached by the upper and lower limbs BS EN 1012 1 2010 BS EN 1012 2 1996 A1 2009 Compressors and vacuum pumps Safety requirements Air compressors and vacuum pumps BS EN ISO 2151 2008 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 BS EN 60204 1 2018 Safety of machinery Electrical equipment of machines General ...

Page 18: ...Sectional Drawings and Spare Parts Lists LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 17 ...

Page 19: ...chanical seal 421 Oil seal 400 5 End casing gasket 400 2 Bearing seal housing gasket 400 Impeller casing gasket 360 1 N D E bearing cap 360 N D bearing cap 357 Bearing seal housing 350 Bearing housing 320 Bearing 311 Guide ring 230 1 2nd stage impeller 230 1st stage impeller 210 Shaft 137 4 Interplate 137 1 Discharge end plate 110 Impeller casing 107 End casing LA 0053 1111 A LB 0063 1011 A Sectio...

Page 20: ...LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 19 ...

Page 21: ...hanical seal 400 5 End casing gasket 400 2 Bearing seal housing gasket 400 Impeller casing gasket 360 1 N D E bearing cap 360 D E bearing cap 357 Bearing seal housing 320 Bearing 230 1 2nd stage impeller 230 1st stage impeller 210 Shaft 147 Crossoverpipe 140 Joint intermediate plate 137 4 Discharge side plate 137 3 Suction inter plate 137 2 Discharge inter plate 137 1 Suction side plate 110 1 2nd ...

Page 22: ...LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 21 ...

Page 23: ...3 Mechanical seal 421 Oil seal 400 8 Crossover pipe gasket 400 5 End casing gasket 400 2 Bearing seal housing gasket 400 1 Inter plate gasket 400 Impeller casing gasket 360 1 N D E bearing cap 360 D E bearing cap 357 Bearing seal housing 320 Bearing 230 1 2nd stage impeller 230 1st stage impeller 210 Shaft 147 Crossover pipe 140 Joint intermediate plate 137 4 Discharge side plate 137 3 Suction int...

Page 24: ...LA 0053 1111 A LB 0063 1011 A Sectional Drawings and Spare Parts Lists 0870150638 091222 page 23 ...

Page 25: ... Oil seal 412 O ring 401 1 N D E bearing cap gasket 401 D E bearing cap gasket 400 8 Manifold pipe gasket 400 5 End casing gasket 400 2 Seal plate gasket 400 Impeller casing gasket 360 3 Bearing cap N D E 360 2 Bearing cap D E 360 1 Bearing cap N D E 360 Bearing cap D E 350 Bearing housing 322 Bearing D E 321 Bearing N D E 230 Impeller 210 Shaft 147 1 Manifold 137 4 Side plate N D E 137 1 Side pla...

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