Tuthill 6000 Series Installation And Service Instructions Manual
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Tuthill 6000 Series Installation And Service Instructions Manual

Tuthill 6000 Series Installation And Service Instructions Manual

Magnetically coupled pumps
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Service Manual #67
Installation and Service
Instructions
6000, 7000 & 8000 Series
Magnetically Coupled Pumps

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Summary of Contents for Tuthill 6000 Series

  • Page 1 Service Manual #67 Installation and Service Instructions 6000, 7000 & 8000 Series Magnetically Coupled Pumps...

  • Page 2: Table Of Contents

    Service Manual # 67 Table of Contents Section Description Page General Description The Pumping Principle Proper Installation Pressure Limitations Magnet Temperature Limitations Optional Equipment Method Of Drive Location Strainer Protection Startup Pump Disassembly Procedure - 6110 & 7110 Pumps Pump Disassembly Procedure - 6200 Pumps Pump Disassembly Procedure - 6210 Pumps Pump Disassembly Procedure - 6300, 7200 &...
  • Page 3 Vent all pressure within the pump through the suction or discharge lines. All Tuthill pumps contain residual hydraulic oil from the factory production test. Determine if this is compatible with the fluid you are pumping. If the fluid is incompatible, consult the factory.

  • Page 4: General Description

    Service Manual # 67 Section 1: General Description The Tuthill 6000, 7000 & 8000 Series pumps are magnetically-coupled versions of the Tuthill 4000 & ST Series pumps. These pumps operate on the internal gear pumping principle described below. These pumps do not contain any dynamic seals, thus eliminating any possibility of shaft seal leakage.

  • Page 5: The Pumping Principle

    Figure 1 - Internal Gear Pumping Principle Tuthill 6000, 7000 & 8000 Series pumps employ the internal gear pumping principle (see Figure 1). There are only two moving parts. Pumping action is based on a rotor, idler gear and crescent- shaped partition cast integral with the cover.

  • Page 6: Pressure Limitations

    Consult Tuthill personnel whenever unusual conditions of speed, pressure, vacuum or viscosity are encountered. The Tuthill pump is a positive displacement pump. As the pump rotates, liquid is positively delivered to the discharge side of the pump. If the discharge line is closed off, pressure will increase until the magnets de-couple, the drive equipment stalls and/or fails, the pump breaks or ruptures, or the piping bursts.

  • Page 7: Magnet Temperature Limitations

    Service Manual # 67 Section 5: Magnet Temperature Limitations Standard pumps are supplied with magnets constructed of Neodymium-Iron-Boron. These magnets cannot exceed a maximum temperature of 250° F (120° C). Operation above the maximum temperature will result in a permanent reduction in magnet strength. Samarium-Cobalt magnets are available as an option and have a maximum temperature rating of 500°...

  • Page 8: Method Of Drive

    Service Manual # 67 Section 7: Method Of Drive Direct drive through a traditional flexible coupling is recommended. However, do not expect the flexible coupling to compensate for misalignment. Contact the coupling manufacturer to determine the maximum amount of misalignment which the coupling can tolerate. All pump and motor units must be properly aligned during assembly and periodically checked since misalignment may occur later due to changing conditions.

  • Page 9: Startup

    Follow all precautions outlined in the Material Safety Data Sheet (MSDS) applicable to the liquid being pumped to ensure safe handling. All Tuthill pumps contain residual hydraulic oil from the factory production test. Determine if this is compatible with the fluid you are pumping. If the fluid is incompatible, consult the factory.
  • Page 10 Service Manual # 67 1. Remove piping from the ports. 2. Mark cover and housing before disassembly to ensure proper reassembly. 3. Remove the cover screws, cover and idler. 4. Inspect the following parts carefully for deep grooves, scratches or other damage: •...

  • Page 11: Pump Disassembly Procedure - 6200 Pumps

    Service Manual # 67 12. Inspect the following parts carefully for deep grooves, scratches or other damage: • The I.D. surface of the housing. • The back face of the rotor. • The back face of the housing bushing. • The O.D.
  • Page 12 Service Manual # 67 CAUTION The pump must be separated from the magnet coupling if further disassembly is required. Follow the instructions below. Use jack screws to disassemble models 6200 Series pumps. Jack screw kits are available as part number 2CMG 558 for models 6202, 6203 and 6204 and part number 5CMG 558 for models 6205 and 6206.

  • Page 13: Pump Disassembly Procedure - 6210 Pumps

    Service Manual # 67 Section 13: Pump Disassembly Procedure - 6210 Pumps Refer to Figure 6. Although some minor disassembly is possible with the complete pump/motor assembly still in place, it is recommended that the pump/motor unit be disconnected and moved to a maintenance area.
  • Page 14 Service Manual # 67 CAUTION The pump must be separated from the magnet coupling if further disassembly is required. Follow the instructions below. Use jack screws to disassemble models 6210 Series pumps. Jack screw kits are available as part number 2CMG 558 for models 6212, 6213 and 6214 and part number 5CMG 558 for models 6215 and 6216.

  • Page 15: Pump Disassembly Procedure - 6300, 7200 & 8200 Pumps

    Service Manual # 67 Section 14: Pump Disassembly Procedure - 6300, 7200 & 8200 Pumps Refer to Figure 7. Although some minor disassembly is possible with the complete pump/motor assembly still in place, it is recommended that the pump/motor unit be disconnected and moved to a maintenance area.

  • Page 16: Pump Disassembly Procedure - 6310, 7210 & 8210 Pumps

    Service Manual # 67 7. Use jack screws to separate the inner and outer magnets: a. Place (3) guide studs into adapter at screw locations and hand-tighten. b. Place (1) threaded stud into bearing housing and slowly turn the threaded stud to jack the bearing housing / outer magnet sub-assembly out.
  • Page 17 Service Manual # 67 3. Mark cover, housing and bracket before disassembly to ensure proper reassembly. 4. Inspect the following parts carefully for deep grooves, scratches or other damage: • The I.D. of the housing. • The end face of the rotor. •...

  • Page 18: Pump Assembly Procedure - 6110 & 7110 Pumps

    (6110 Pumps only) Set End Clearance. Gaskets are used to set and maintain proper internal clearances. These clearances depend on the size of the pump and are shown below. Note: Some Tuthill pumps are provided with non-standard clearances for use with high-viscosity or high-temperature fluids. Consult the factory for clearances of these pumps.
  • Page 19 Service Manual # 67 4. Apply idler to cover and position in housing register. Align matching marks for proper location. 5. Install cover screws. 6. Once cover is installed, rotate the shaft to ensure smooth operation before proceeding. 7. Place pump on flat surface with the shaft facing upward. Check the condition of the o-ring in the groove on the bracket.

  • Page 20: Pump Assembly Procedure - 6200 Pumps

    4. Set End Clearance. Gaskets are used to set and maintain proper internal clearances. These clearances depend on the size of the pump and are shown below. Note: Some Tuthill pumps are provided with non-standard clearances for use with high-viscosity or high-temperature fluids.
  • Page 21 Service Manual # 67 14. Once the pump/inner magnet sub-assembly is in place, fasten it to the adapter with screws from the cover end. 15. Place pump/inner magnet sub-assembly on a flat surface with the bearing housing register end facing upward. 16.

  • Page 22: Pump Assembly Procedure - 6210 Pumps

    4. Set End Clearance. Gaskets are used to set and maintain proper internal clearances. These clearances depend on the size of the pump and are shown below. Note: Some Tuthill pumps are provided with non-standard clearances for use with high-viscosity or high-temperature fluids.
  • Page 23 Service Manual # 67 15. Place the adapter plate on the motor register. 16. Place the motor on a flat surface with the shaft facing upward. 17. Place the key into motor shaft keyway. 18. Carefully lower outer magnet onto shaft until inside face of outer magnet is flush with the shaft. (see Figure 2).

  • Page 24: Pump Assembly Procedure - 6300, 7200 & 8200 Pumps

    The positioning of the adjusting ring is used to set and maintain proper internal clearances. These clearances depend on the size of the pump and are shown below. Note: Some Tuthill pumps are provided with non-standard clearances for use with high- viscosity or high-temperature fluids. Consult the factory for clearances of these pumps.
  • Page 25 Service Manual # 67 8. If equipped, place retaining ring into lower retaining ring groove on shaft. 9. Place key into shaft keyway. 10. Lower inner magnet onto shaft until it bottoms onto retaining ring or shaft shoulder. Place retaining ring into retaining ring groove on shaft 11.

  • Page 26: Pump Assembly Procedure - 6310, 7210 & 8210 Pumps

    The positioning of the adjusting ring is used to set and maintain proper internal clearances. These clearances depend on the size of the pump and are shown in Table 8. Note: Some Tuthill pumps are provided with non-standard clearances for use with high-viscosity or high-temperature fluids. Consult the factory for clearances of these pumps.
  • Page 27 Service Manual # 67 12. Position adapter securely on flat surface with the pump register end facing upward. Carefully lower the pump/inner magnet sub-assembly into the adapter register. 13. Once the pump/inner magnet sub-assembly is in place, fasten it to the adapter with screws. 14.
  • Page 28 Service Manual # 67 Figure 3 - Typical 6110 Series Pump Page 28 of 36...
  • Page 29 Service Manual # 67 Figure 4 - Typical 7110 Series Pump Page 29 of 36...
  • Page 30 Service Manual # 67 Figure 5 - Typical 6200 Series Pump Page 30 of 36...
  • Page 31 Service Manual # 67 Figure 6 - Typical 6210 Series Pump Page 31 of 36...
  • Page 32 Service Manual # 67 Figure 7 - Typical 6300 / 7200 / 8200 Series Pump Page 32 of 36...
  • Page 33 Service Manual # 67 Figure 8 - Typical 6310 / 7210 / 8210 Series Pump Page 33 of 36...

  • Page 34: Troubleshooting

    Service Manual # 67 Section 21: Troubleshooting 1. Problem: No fluid is delivered. a. Power is not on. b. Net positive suction head available (NPSHa) is lower than required for the vapor pressure of the liquid pumped. You should calculate NPSHa and redesign piping, if necessary. c.

  • Page 35: Material Returns

    Material Safety Data Sheet (MSDS) has been forwarded to our Alsip plant and return of the pump approved. • Tuthill pumps are precision built and must be handled with care. • Pumps must be drained of all fluid and the ports plugged to prevent foreign material from getting into the pump.
  • Page 36 Service Manual # 67 Notes: 7/00 Page 36 of 36...

This manual is also suitable for:

7000 series8000 series

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