moyno 2000 Service Manual
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moyno 2000 Service Manual

G2/g3 enhanced feed models version 5
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moyno 2000 Service Manual

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  • Page 2 SERVICE MANUAL ® MOYNO 2000 Pumps G2/G3 Enhanced Feed Models Version 5 Models...

  • Page 3: Table Of Contents

    This service manual outlines installation, operation and maintenance procedures for the flanged ”G4” models of Moyno 2000 pump. For information on the flanged G1, open throat (G2) and/or the bridge breaker (G3) models of the Moyno 2000 pump, refer to their respective Service Manual, or contact your nearest Moyno pump representative.

  • Page 4: Introduction

    It represents the next generation of the world’s most versatile pump. The Moyno 2000 Pump is a progressing cavity pump. A single helical rotor rolling eccentrically in the double helix of the stator Figure 1-1. Typical nameplate showing rotation arrow, creates the pumping action.

  • Page 5: Version Designation

    G ⎯ 416 Stainless Steel H ⎯ Hastelloy “C”** 2-2. GENERAL J ⎯ 17-4 pH Stainless Steel Moyno pumps are lubricated and tested at the factory prior to M ⎯ Monel*** shipment and require minimum pre-start up maintenance. S ⎯ 316 Stainless Steel Packing, however, is not lubricated at the factory.

  • Page 6: Shaft Alignment

    Then check the pump driver shaft and the pump ports to ensure that they are level. Complete base mounted units supplied by Moyno including pump and driver are leveled with respect to the base at the factory. Shifting may occur during shipment.

  • Page 7: Packing Leakage

    Exploded View (Section 4-52 and 4-54). 4-2. GENERAL Figure 4-1. Cross Section of Stuffing Box The Moyno 2000 pump has been designed for a minimum of maintenance, the extent of which is routine adjustment and 4-4. PACKING REPLACEMENT lubrication of packing.

  • Page 8: Lubrication

    (SRD). See separate SRD service manual or contact the local 1. Flush the pump (preferably with clean water) to remove the Moyno distributor for further information on this new product. pumpage from the unit. Method 2: Use winch-type device anchored directly opposite stator end.

  • Page 9: Rotor, Connecting Rod, And Intermediate Shaft Removal

    at this time per section 4-13. 4-13. Rotor, Connecting Rod, and Intermediate Shaft Removal 4-15. G3 BRIDGE BREAKER DISASSEMBLY Complete Sections 4-9, 4-11, and 4-12. NOTE: The following instructions cover ONE procedure for disassembling all Bridge Breaker components. Major Pull the rotor/connecting rod/ and intermediate shaft components can be disassembled in various ways since assembly from the pump.

  • Page 10: Cleaning

    (35) on the drive adapter (15) Slide the female hollow shaft of both grease seals. For G3 models, replace the grease seals gearmotor off the male Paddle Drive Shaft (10). (21) whenever disassembling the bridge breaker bearings. 4-24. Packing. It is sound practice to always replace packing 4.

  • Page 11: Stator

    Install the two lantern ring halves with the flat side (Ref: Table 4-1, Section 4-51) against the packing. The Moyno 2000 pumps are reassembled in the reverse order of Install final three packing rings, firmly pushing each dismantling. The following suggestions are offered: ring into place.

  • Page 12: Rotor/Stator Assembly

    2. Thread bearing nut (21) on shaft (37) and tighten until it rests against the shoulder on the drive shaft. Install brass tip NOTE: Rotor can also be inserted in the stator utilizing Moyno’s set screw (42) in bearing nut and tighten.

  • Page 13: Rotor/Stator To Drive End

    seal retainer component of the connecting rod assembly. Apply a 4-35. Rotor/Stator to Drive End Assembly small coating of approved gear joint lubricant to the inside surfaces of the seal. If not already in place, slip stator clamp rings (16 and 9) on both ends of stator (11), and install retaining rings (39) in grooves provided on both ends of stator.

  • Page 14: G3 Bridge Breaker Assembly

    1. Insert the paddle end shafts (12) from the inside of the Insert spring dowels (27) into the extension block (6). Dowel pins align the extension block to the suction housing suction housing (13) and through their respective stuffing box (13) and align the extension block to the gearcase (16).

  • Page 15: Final Assembly

    Standard packing on all Moyno 2000 pumps consists of braided PTFE fibers impregnated with ultra-fine graphite. Optional types of packing are available for food, high temperature, and other types of service. Consult your nearest Moyno representative. 4-4. FINAL ASSEMBLY 4-47. VARIATIONS OF STANDARD PARTS Install pipe plugs (43) and zerk fittings (63) in appropriate threaded holes in suction housing.

  • Page 16: Rotors

    NOTE: Torque values are from the Industrial Fasteners Institute and Craftsman Corp. 4-50. SELECTING THE CORRECT PART FOR YOUR MOYNO 2000 PROGRESSING CAVITY PUMP NOTE: For “Hopper types” other than “M”, Type / Trim codes designated by “X”, specialty stator materials not shown, and specialty materials like stainless steel or hastelloy, consult factory for updated parts listing per the pumps “AS”...

  • Page 17: G2 Parts Lists

    4-51. G2 Open Throat Parts List E PART F PART G PART H PART J PART K PART ITEM # G2 PART DESCRIPTION NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER O-Ring : Rotor/intermed Sft 3207902150 3207902153 3207902156 3207902158 3207902162 3207902264 O-Ring - Bearing Cover 3207902248 3207902256 3207902264...
  • Page 18 G2 Open Throat Parts List (continued) E PART F PART G PART H PART J PART K PART ITEM # G2 PART DESCRIPTION NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER G2 Suction Housing - Std CS 4251554001 4251534001 4251491001 G2 Suction Housing - 1meter CS 4251555001 4251535001 4251492001...

  • Page 19: G3 Parts Lists

    G2 Open Throat Parts List (continued) Rotor (Ref. No. 14) for Type Designations Beginning with CD Stator (Ref. No. 11) Part Number STAGES MODEL MODEL F012 CD310E † CD320E † CD340E † CD360E † C71FE1 C72FE1 C74FE1 C76FE1 F012 F022 CD310F †...
  • Page 20 G2 Open Throat Parts List (continued) Connecting Rod Chart (Ref # 36) G2 PART Element E PART NUMBER Element F PART NUMBER Element G PART NUMBER ITEM # DESCRIPTION Size Size Size 4251737001 4251737301 4251739001 4251739301 4251741001 4251741301 Conrod Assembly - 4251609001 4251609301 4251610001 4251610301...

  • Page 21: Troubleshooting Chart

    4-52. Table 4.1: G2 Exploded View...
  • Page 22 4-53. G3 Bridge Breaker Parts List E PART F PART G PART H PART J PART K PART ITEM # G3 PART DESCRIPTION NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER Packing Set 3403654002 3403654002 3403654002 3403654003 3403654003 3403654003 Bearing 4220764000 4220764000 4220764000 4220767000 4220767000...
  • Page 23 G3 Bridge Breaker Parts List (continued) G3 PART DESCRIPTION E PART F PART G PART H PART J PART K PART ITEM # 2 Meter Option Only NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER Lock Washer - Bearing Retainer 6230010411 6230010411 6230010411 6230010431 6230010431...
  • Page 24 4-54. Table 4:2 G3 Exploded View...
  • Page 25 Packing too loose. Tighten gland nuts, & lubricate. Incorrect part. If pump has been rebuilt, check to verify original Moyno parts used. NOTE: If further troubleshooting procedural information is needed, please contact your authorized Moyno Pump distributor. © 2005 by Moyno, Inc.

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