Grundfos seg autoadapt Service Instruction
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Grundfos seg autoadapt Service Instruction

Grundfos seg autoadapt Service Instruction

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GRUNDFOS INSTRUCTIONS
SEG AUTO
ADAPT
Service instructions

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Summary of Contents for Grundfos seg autoadapt

  • Page 1 GRUNDFOS INSTRUCTIONS SEG AUTO ADAPT Service instructions...

  • Page 2: Table Of Contents

    Content Symbols used in this document ..................4 Identification........................4 Nameplate ............................4 Type key ............................5 Service tools........................5 Special tools .............................5 Standard tools ..........................6 Torque tools .............................6 Tightening torques, lubricants and oil ................6 Tightening torques ..........................6 Lubricants ............................6 Oil..............................6 Dismantling and assembly ....................
  • Page 3 Supply scable ........................16 17.1 Dismantling.............................16 17.2 Assembly ............................16 Replacing the electronic unit..................17 Exploded views ....................... 18 Fault finding ........................19 3 / 20...

  • Page 4: Symbols Used In This Document

    1. Symbols used in this document Warning If these safety instructions are not observed, it may result in personal injury! Warning These instructions must be observed for explosion-proof pumps. It is advisable also to follow these instructions for standard pumps. If these safety instructions are not observed, it may result in malfunction or damage to the Caution equipment!

  • Page 5: Type Key

    2.2 Type key Code Example SE G .40 .2 .1 Type range Grundfos sewage pumps Impeller type Grinder system in the pump inlet Pump outlet Nominal diameter of pump discharge port [mm] Output power, P2 P2 = code number from type designation/10 kW...

  • Page 6: Standard Tools

    Warning Service and dismantling of electrical parts and replacement of bearings must only be carried out by Grundfos or an authorised service workshop. 5.1 Position numbers Position numbers of pump parts (digits) refer to exploded views, sectional drawings and parts lists; position numbers of tools (letters) refer to section 3.

  • Page 7: Before Dismantling

    5.2 Before dismantling • Disconnect the power supply to the pump. • Disconnect the power cable in accordance with local regulations. 5.3 Before assembly • Clean and check all parts. • Replace defective parts by new parts. • Order the necessary service kits. •...

  • Page 8: Assembly

    7.2 Assembly 1. Fit grinder head (pos. 45). The dogs on the back of the grinder head must engage with the impeller holes (pos. 49). 2. Tighten bolt (pos. 188a) in the shaft end. Do not forget the lock washer. 3.

  • Page 9: Assembly

    8.2 Assembly 1. Lubricate key and shaft. See section Lubricants. 2. Fit key and impeller. The impeller blades must point away from the stator housing. 3. Fit clamp (pos. 92) loosely on stator housing (pos. 55). 4. Fit adjusting nut (pos. 68) in the impeller. 5.

  • Page 10: Shaft Seal

    10. Shaft seal 10.1 Dismantling, 0.9 - 1.5 kW 1. Drain the oil. See section 9.2 Draining of oil. 2. Remove the two bolts (pos. 188a) in seal ring retainer (pos. 58) and fit them into the extractor holes. 3. Remove the retainer by means of the two bolts. Cross-tighten the bolts to ensure an even pull. 4.

  • Page 11: Dismantling, 2.6 - 4 Kw

    10.3 Dismantling, 2.6 - 4 kW 1. Remove key (pos. 9a) from the shaft. 2. Remove lock ring (pos. 112). 3. Remove the two bolts in seal ring retainer (pos. 58) and fit them in the extractor holes. 4. Remove seal ring retainer (pos. 58). 5.

  • Page 12: Bearings

    11. Bearings Warning Replacement of bearings of Ex pumps must only be carried out by Grundfos or a service workshop authorised by Grundfos. 11.1 Dismantling 1. Remove the grinder system (see section 7.1), drain oil (see section 9.2) and remove the shaft seal (see section 10.1).

  • Page 13: Electronic Unit

    12. Electronic unit 12.1 Dismantling 1. Clean the pump around the electronic unit to protect the electronic parts from dirt when opening the electronic unit. 2. Lay the pump on the side with the level sensor upwards. See fig. 10. 3.

  • Page 14: Assembly

    12.2 Assembly 1. Lubricate O-ring (pos. 90b) and the contact surfaces of the stator housing and electronic unit. See section Lubricants. 2. Fit the O-ring in the stator housing. 3. Place the wires in the hollow space and fit the electronic unit on the stator housing. Take care that the wires are not pinched between the stator housing and electronic unit.

  • Page 15: Level Sensor

    15. Level sensor 15.1 Dismantling 1. Open the electronic unit. See section 12.1 Dismantling. 2. Remove the sensor wire from the PC board. 3. Remove set screw (pos. 287c). 4. Press the sensor out of the electronic unit. 5. Clean the sensor hole. 15.2 Assembly 1.

  • Page 16: Supply Scable

    17. Supply scable 17.1 Dismantling 1. Slacken union nut (pos. 199) anti-clockwise with hook spanner (pos. B). 2. Insert two screwdrivers into the groove and prise the supply cable out of the cable entry. See fig. 13. Fig. 13 Removing the supply cable 3.

  • Page 17: Replacing The Electronic Unit

    18. Replacing the electronic unit 1. Open the electronic unit. See section 12. Electronic unit. 2. Remove the wires of the dry-running sensor, Pt1000 sensor and capacitor (single-phase pumps) as well as the earth lead. 3. Cut the motor leads between the electronic unit and the stator housing in the middle. 4.

  • Page 18: Exploded Views

    19. Exploded views Fig. 16 SEG, 0.9 - 1.5 kW 18 / 10...

  • Page 19: Fault Finding

    Fig. 17 SEG, 2.6 - 4 kW 20. Fault finding Warning Remove all fuses, or switch off the main switch before fault correction. Make sure that the power supply cannot be accidentally switched on. All rotating parts must have stopped moving. Warning All regulations applying to pumps installed in potentially explosive environments must be observed.
  • Page 20 Unit 1, Ground floor Turkey Phone: +387 33 713 290 Siu Wai Industrial Centre Norway GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Telefax: +387 33 659 079 29-33 Wing Hong Street & GRUNDFOS Pumper A/S Gebze Organize Sanayi Bölgesi e-mail: grundfos@bih.net.ba 68 King Lam Street, Cheung Sha Wan Strømsveien 344...

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