Grundfos BME Dismantling And Assembly
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Grundfos BME Dismantling And Assembly

Pulley head
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GRUNDFOS INSTRUCTIONS
BME, BMET
Pulley head
Dismantling and assembly

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Summary of Contents for Grundfos BME

  • Page 1 GRUNDFOS INSTRUCTIONS BME, BMET Pulley head Dismantling and assembly...

  • Page 2: Table Of Contents

    3. Dismantling of pulley head for BME... . 5 4. Assembly of pulley head for BME ... . 13 5. Dismantling of pulley head for BMT... 23...

  • Page 3: Service Tools

    1. Service tools Puller (SV 03 27) Fitting punch for axial bearing (SV 00 21) Fitting punch for seal ring (SV 00 20) Puller complete (SV 08 52) Shaft height gauge (SV 01 15) Depth gauge Hammer Ratchet spanner (size 19 mm) Knife Keys for hexagon socket head screws...

  • Page 4: General

    2. General BMET If your system is a BME, it has only one pulley head: • BME pulley head. If your system is a BMET, it has two pulley heads: For the dismantling of the BME pulley head, go to •...

  • Page 5: Dismantling Of Pulley Head For Bme

    3. Dismantling of pulley head for BME Note: To prevent water from mixing with the oil when the motor-driven pump is removed, proceed as follows: • Pull the pulley head with pump out of the sleeve. • Loosen the pump from the pulley head.
  • Page 6 Slacken and remove the six screws (M5 x 16) holding the rear cover. Rear cover Fig. 6 Loosen the cover by means of dismantling bolts inserted in the additional tapped holes in the cover. Fig. 7 Puller in the correct position. Dismantling of pulley head for BME...
  • Page 7 Note: Push the rear cover backwards and fit the puller di- rectly to the pulley. Rear cover Fig. 10 Lift off the pulley. Fig. 11 Slacken the three screws (M6 x 14) in the spacing pipe. Dismantling of pulley head for BME...

  • Page 8: Normally, The Bearing Can Be Removed By Hand As The Bearing Fits Loosely On The Stationary Shaft

    Note: Position the curved side as indicated by the arrow. Fig. 15 Pull the ball bearing past the first fit. Normally, the bearing can be removed by hand as the bearing fits loosely on the stationary shaft. Dismantling of pulley head for BME...
  • Page 9 Fig. 17 Puller in the correct position. Fig. 18 Press the ball bearing out of the first fit. Fig. 19 Press the ball bearing out of the second fit. Dismantling of pulley head for BME...

  • Page 10: Fig. 20

    Fig. 22 Lift off the stationary shaft. Take care not to damage the carbon of the shaft seal when the stationary shaft is lifted free of the rotating shaft. Fig. 23 Remove the rotating shaft. Dismantling of pulley head for BME...
  • Page 11 Remove the pins from the thrust bearing. Use the following tools: • 2 screwdrivers as shown in fig. 25 or • SV 03 27 – puller as shown in fig. 26. Fig. 26 Fig. 27 Lift off the thrust bearing. Dismantling of pulley head for BME...
  • Page 12 Fig. 29 Driver pin The driver pin for the shaft seal should only be removed if it is defective and a new shaft seal is to be fitted. Usually, the driver pin is intact. Dismantling of pulley head for BME...

  • Page 13: Assembly Of Pulley Head For Bme

    4. Assembly of pulley head for BME GRUNDFOS recommends to replace all gaskets. The parts required are included in Service kit No. 14 51 77. Use water/soapy water when fitting the gaskets and rubber parts, however, not for parts in contact with oil or bearings.
  • Page 14 “X” is between 0.5 and 1.0 mm. Check that the hole in the shaft seal covers the driver pin. Driver pin Fig. 36 Thrust bearing complete. Assembly of pulley head for BME...
  • Page 15 Check that the bearing can be moved in all directions. Fig. 39 Fit the O-ring and the rubber bearing to the housing. Fig. 40 Bearing housing with O-ring and rubber bearing. Cone Assembly of pulley head for BME...
  • Page 16 Use the following tool: • SV 00 21 – fitting punch for axial bearing. Fig. 43 Bearing housing with O-ring and axial bearing. Fig. 44 Lock the axial bearing by deforming the holes with a screwdriver. Assembly of pulley head for BME...
  • Page 17 Fit the stationary shaft with thrust bearing in the housing. Note: Take care not to damage the carbon of the shaft seal. Fig. 47 Tighten the four screws (M8 x 30) holding the stationary shaft. Fig. 48 Puller in the correct position. Assembly of pulley head for BME...
  • Page 18 Press the ball bearing home in the second fit of the pulley. Fig. 51 Rear cover. Fig. 52 Rear cover with O-ring and seal ring. Check that the face on which the V-ring is running is clean and intact. Assembly of pulley head for BME...
  • Page 19 Lubricate the V-ring with oil. V lip Fig. 56 Fit the ball bearing and push it against the shoulder. There is a loose fit between the shaft and the bearing. Note: Place the V-ring on the recess. Assembly of pulley head for BME...
  • Page 20 Fig. 58 Tools in the correct position. Fig. 59 Note: Position of tools. Fig. 60 Fit the pulley. Note: Fit the puller to the rear cover and not to the pulley. Assembly of pulley head for BME...
  • Page 21 Use the following tools: • SV 10 16 – tool for spline shaft as shown in fig. 64 or • SV 10 15 – shaft height gauge as shown in fig. 65. Assembly of pulley head for BME...
  • Page 22 Fig. 65 Assembly of pulley head for BME...

  • Page 23: Dismantling Of Pulley Head For Bmt

    5. Dismantling of pulley head for BMT Fig. 66 Remove the two bolts (M8 x 60) and remove the two clamp halves. Fig. 67 Remove the outlet part. Fig. 68 Remove the 2 x 4 hexagon socket head screws (M8 x 20). Dismantling of pulley head for BMT...
  • Page 24 Fig. 69 Remove the distributing pipe. Fig. 70 Slacken the six hexagon head screws (M6 x 25) approx. 10 mm. Do not remove them. Fig. 71 Use three hexagon socket head screws (M6 x 30) to loosen the taper bush. Fig.
  • Page 25 Fig. 73 Remove the nozzles from the turbine housing. Fig. 74 Remove the self-locking nuts (M12). Fig. 75 Remove the turbine housing by means of: • dismantling bolts or • a broad wooden block and a plastic hammer. Fig. 76 Pull the turbine housing free of the stationary shaft.
  • Page 26 Fig. 77 Remove the four screws (M8 x 25) from the cover. Fig. 78 Remove the two screws (M8 x 25) from the stationary shaft. Fig. 79 Remove the thrust bearing housing/pump body by means of two dismantling bolts (M8 x 100) in the free holes, see fig.
  • Page 27 Fig. 81 Remove the four screws (M12 x 30) and pull the pump body free of the pulley head. Fig. 82 Remove the two screws (M8 x 25). Fig. 83 Insert two screws (M8 x 30) in the stationary shaft to loosen the shaft.
  • Page 28 Fig. 85 Pull out the drive shaft. Fig. 86 Remove the pins from the thrust bearing. Use the following tools: • 2 screwdrivers as shown in fig. 86 or • SV 03 27 – puller as shown in fig. 87. Fig.
  • Page 29 Fig. 89 Remove the two seal rings. Fig. 90 Remove the two bearings using a knife. Dismantling of pulley head for BMT...

  • Page 30: Assembly Of Pulley Head For Bmt

    6. Assembly of pulley head for BMT GRUNDFOS recommends to replace all gaskets. The parts required are included in Service kit No. 14 51 78. Use water/soapy water when fitting the gaskets and rubber parts, however, not for parts in contact with oil or bearings.
  • Page 31 Fig. 94 Fit the axial bearing, if required. Use the following tool: • SV 00 21 – fitting punch for axial bearing. Fig. 95 Bearing housing with O-ring and axial bearing. Fig. 96 Lock the axial bearing by deforming the holes with a screwdriver.
  • Page 32 Fig. 98 Fit the rubber bearings. Fig. 99 Fit the two seal rings. Turn the punch upside-down when the first seal ring has been fitted. Use the following tool: • SV 00 20 – fitting punch for seal ring. Fig. 100 Oval When fitting the thrust bearing, note that the oval holes (marked with arrows) must be positioned with 90°...
  • Page 33 Fig. 102 Fit the rotating shaft in the housing. Fig. 103 Fit the stationary shaft with thrust bearing in the housing. Fig. 104 Screw the stationary shaft and the thrust bearing housing together using four screws (M8 x 25). Fig. 105 Measure the shaft height (73 0/–0.4 mm).
  • Page 34 Fig. 106 Fig. 107 Fit the pump body to the pulley head. The vent hole marked with an arrow must be uppermost and fit the small hole in the thrust bearing housing (ø4). Note: If a new pump is to be mounted, please see in the blue parts list No.
  • Page 35 Fig. 110 Fit the turbine housing. Fig. 111 Fit and tighten the nuts holding the turbine housing. Fig. 112 The clearance in the axial thrust bearing is eliminated when the turbine wheel is fitted. Use a coupling without rubber parts. Use the following tool: •...
  • Page 36 Fig. 114 Fit the turbine wheel with taper bush to the shaft end. Fig. 115 Adjust the knife on the turbine wheel. Use the following tools: • SV 08 55 – punch for adjustment of turbine wheel. • SV 08 54 – bush for adjustment of turbine wheel. Fig.
  • Page 37 Fig. 118 Fit the two nozzles. Fig. 119 Place the distributing pipe in the correct position. Do not forget the O-rings. Fig. 120 Tighten the distributing pipe. Fig. 121 Place the outlet part in the right position and fit the clamp. Assembly of pulley head for BMT...
  • Page 38 Fig. 122 Tighten the clamp. Assembly of pulley head for BMT...
  • Page 39 Glenmarie Industrial Park Telefax: +66-2-744 1775 ... 6 Finland 40150 Shah Alam OY GRUNDFOS Pumput AB Turkey Selangor GRUNDFOS POMPA SAN. ve TIC. LTD. STI Mestarintie 11 Phone: +60-3-5569 2922 Piispankylä Bulgurlu Caddesi no. 32 Telefax: +60-3-5569 2866 FIN-01730 Vantaa (Helsinki) TR-81190 Üsküdar Istanbul...
  • Page 40 Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence 96 42 68 77 0903 Repl. 96 42 68 77 0402 www.grundfos.com...

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Bmet

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