Pentair Edwards 400 Maintenance Manual
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Pentair Edwards 400 Maintenance Manual

Pentair Edwards 400 Maintenance Manual

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Edwards Model 400
Pump Maintenance Manual

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Summary of Contents for Pentair Edwards 400

  • Page 1 Edwards Model 400 Pump Maintenance Manual...

  • Page 3: Table Of Contents

    Contents Safety 3 Installation General Precautions ....iii Inspection ..... . 3-1 Warnings and Cautions .

  • Page 5: Safety

    Safety General Precautions The following are general safety precautions not related to any specific procedure. Per- sonnel must understand and apply these precautions during both operation and main- tenance of the pump. Do Not Operate Pump Without Ear Protection. The pump has heat-treated steel timing gears, which can be very noisy when operated above 900 rpm.

  • Page 6: Cautions

    Model 400 Pump Do not order parts using this manual if the model number on the pump is not 400-112 or the serial number is not ________________. Using parts ordered from the wrong manual could result in pump failure or personal injury. Cautions Do not hammer on pump endcase.

  • Page 7: General

    General Introduction The Edwards Model 400 pump (Figure 1-1) is a standard-duty high-speed gear-driven positive-displacement rotary pump with gear-type rotors. The pump is self-priming. Edwards rotary pumps are available in many configurations. While they may look alike, there may be significant differences from one pump to another. Differences include construction material, sealing method, rotor type, etc.

  • Page 8: Maintenance

    400-112 and the serial number is ________________. If the numbers do not match, contact Edwards - Pentair Water. Most pump repairs can be performed by maintenance personnel using normally avail- able tools.

  • Page 9: Lubrication

    Model 400 Pump Table 2-1. Consumable Materials (Continued) Item Nomenclature Specification Common Name General Purpose Grease MIL-G-18709 Chevron Ulti-Plex, Shell Retina LC NLGI #2 Lapping Compound D51804, 180 Grit Felpro “Clover” Silicon Carbide Brand Lubrication Zerk fittings do not have check balls. To ensure a long service life, the pump should be lubricated routinely with approved This prevents bear- grease (7, Table 2-1).

  • Page 10: Removal

    Maintenance Table 2-3. Troubleshooting (Continued) Trouble Probable Cause Remedial Action 2c. Worn or damaged 2c. Repair or replace pump. bearing(s). Excessive 3a. Loose or misaligned 3a. Tighten, align, or replace vibration coupling. coupling. 3b. Cavitation. 3b. Check suction piping with a vacuum gauge.

  • Page 11: Disassembly

    Model 400 Pump Disassembly General Practice 1. Keep work area as clean as possible to avoid contamination of internal parts. 2. Replace gaskets, packings, and seals removed during repair. Replace all keys, spring washers, and like items during assembly. 3. When removing gaskets, packings, or seals, do not use a metal tool to pry, pick, or scrape.
  • Page 12 Maintenance UPPER DRIVE SUCTION DISCHARGE DISCHARGE PORT PORT PORT LEFT HAND RIGHT HAND ROTATION ROTATION LOWER DRIVE SUCTION SUCTION DISCHARGE PORT PORT PORT LEFT HAND RIGHT HAND ROTATION ROTATION 1070_0002a.cdr NOTE: ALL ROTATIONS ARE VIEWED FROM PUMP SHAFT END. Edwards USES THE FOLLOWING NOTATION FOR PUMP IDENTIFICATION: UR = UPPER SHAFT –...

  • Page 13: Cleaning

    Model 400 Pump 9/16’’ HOLES 1/2’’ x 2-1/2’’ NC GRADE 8 (2 PLACES) CAP SCREWS (2 PLACES) 2-3/4’’ 3/4’’ 6’’ 2’’ 1070_0003a.cdr Figure 2-2. Timing-Gear Puller Fabrication Diagram 13. Remove timing gear endcase (15) and pump body gasket (20). Discard gasket. Never hammer directly on pump drive shaft.

  • Page 14: Inspection

    Maintenance 5. Place ball or roller bearings in basket and suspend in container of “dry” cleaning Always replace solvent overnight. If necessary, use soft-bristled brush to remove caked grease and bearings whenever chips. Avoid rotating bearing before solid particles are removed to prevent damag- possible.

  • Page 15: Assembly

    Model 400 Pump Assembly General Practice 1. Remove any protective coatings from new parts. 2. Lubricate bearings with same type of lubricant normally used in pump or as directed in specific repair procedure. 3. Lubricate lip of oil seals with lubricant specified in specific procedure. Install oil seals, with lip facing out, by applying an even force to outer edge of seal.
  • Page 16 Figure 2-4. We recommend using with two lips must face toward pump an arbor press to seat the seals. Installation tools are available from Edwards-Pentair Water. body as shown in 3. Pre-lubricate grease seals (14) with approved grease (7, Table 2-1).
  • Page 17 Model 400 Pump 3. Check that seals (19) have been installed in endcase (15) before proceeding with Seals must be endcase installation. installed in end- cases before install- Make sure liners fit into counterbore on endcase, and that they can be fully ing endcases.
  • Page 18 Maintenance Do not overtighten bearing adjusting nut setscrews. Excessive bearing preload may result, causing bearing damage. 6. Tighten the setscrews (11) enough to secure the bearing adjusting nuts (12) in end- case (15). 7. Repeat steps 2 through 6 for drive rotor assembly (22) bearings. USE NUT AND BOLT ENDCASE TO SUPPORT DIAL INDICATOR...

  • Page 19: Replacement

    Model 400 Pump 8. Remove shim stock and rotate drive rotor (22). The drive rotor should rotate idler rotor (23) freely with no contact between rotors. Install End Covers 1. Apply light coat of approved grease (7, Table 2-1) to rubber surface of new front cover seal (7, Figure 4-1).

  • Page 20: Inspection

    2. Check for shipment shortages against the bill of lading. 3. Report shortages to the carrier and note them on the bill of lading. 4. Notify Edwards - Pentair Water of damage to contents not a fault of the carrier, or in the event of short- ages.

  • Page 21: Clean Pump

    Model 400 Pump 3. Leave plastic or gasket-type port covers in place. 4. If pump comes wrapped with protective material, rewrap pump. 5. Store in clean, dry location. Installation The pump can be installed wherever adequate space exists to connect piping and per- form maintenance.
  • Page 22 Installation...

  • Page 23: Prepare Foundation

    Model 400 Pump Prepare Foundation The foundation absorbs any vibration, strains, or shock, while providing a permanent, rigid support for the pump skid. 1. Construct a foundation form that is 4 to 6 inches longer and wider than the skid base.

  • Page 24: Level Pump Skid

    Installation PUT WASTE 1/2’’ AROUND BOLT TEMPLATE BEFORE POURING CONCRETE LEAVE SURFACE ROUGH TO ANCHOR GROUT SLEEVE 5’’ 1.5’’ WASHER 1/4’’ 2’’ 3’’ 1070_0011a.cdr Figure 3-5. Typical Foundation Bolt Configuration Level Pump Skid 1. Before pump skid is set on foundation, clean underside of skid base and top of foun- dation.

  • Page 25: Check Driver Rotation

    Model 400 Pump 3. Wet top of foundation prior to grouting. 4. Pour grout between frame and skid base. 5. Puddle grout as poured, working as much as possible under skid base and into sleeves around foundation bolts. Ideally, complete space under skid base should be filled to height of grout around skid base.

  • Page 26: Align Couplings

    Installation 4. Start and stop the driver while observing driver shaft rotation. Driver rotation must be same as pump rotation. For applications Align Couplings where pumps are operated at elevated The alignment of the pump and motor or engine driver must be checked before startup. temperatures, final Maximum angular offset in the two coupling halves is 1 degree;...
  • Page 27 Model 400 Pump FEELER GAUGE 1070_0014a.cdr Figure 3-8. Checking for Angular Coupling Misalignment Checking for Parallel Misalignment. To check parallel misalignment: 1. Attach dial indicator as shown in Figure 3-9. 2. With dial indicator secured to pump or driver shaft, rotate both shafts together, noting dial indicator readings through one complete revolution.

  • Page 28: Piping

    Installation USE DIAL SECURE BRACKET INDICATOR TO COUPLING HALF FOR PARALLEL ALIGNMENT USE INSIDE MICROMETER FOR ANGULAR ALIGNMENT 1070_0016a.cdr Figure 3-10. Checking for Spacer Coupling Misalignment Piping Rotary pumps have close running clearances. Thus, clean piping is a must. Dirt, grit, weld bead or scale, flushed from an unclean piping system, will damage and may stall the pump.

  • Page 29: Strainers

    Model 400 Pump tem including valves, strainers, and other restrictions, and the elevation of the pump with reference to supply and discharge points. Friction or line losses may be calculated by referring to the manufacturer’s Engineering Manual or the Hydraulic Institute’s Engineering Data Book.

  • Page 30: Pre-Startup Checks

    Installation RECOMMENDED BYPASS FLOW SUPPLY TANK PRESSURE RELIEF VALVE NOT RECOMMENDED BUSHING PIPE TEE TO SYSTEM SUCTION PORT DISCHARGE PORT ROTARY GEAR PUMP 1070_0005a.cdr Figure 3-11. Pump By-pass Piping Pre-Startup Checks Inspection checks are essential to avoid operational difficulties and ensure trouble-free startup.
  • Page 32 Check the name plate on the pump to make certain the model number is 400-112 and the serial number is ________________. If the numbers do not match, contact Edwards - Pentair Water. When ordering parts, please provide: 1.
  • Page 33 SECTION EDWARDS PAGE 14 DATED JANUARY 2008 Figure 4-1. Edwards Model 400 Pump Exploded View 16 15 1070_0009f.cdr Pentair Water...

  • Page 34: Parts

    700-0942 644 ** 700-0944 644 ** Rotor Assembly - Idler 700-0939 644 ** 700-0941 644 ** 700-0943 644 ** 700-0945 644 ** 24 Stud 808-5150 25 Body 092, 112 096-0163 096-0165 096-0164 BOLD numbers are recommended spare parts. Pentair Water...
  • Page 36 WARRANTY: Seller warrants equipment (and its component parts) of its own manufacture against defects in materials and workmanship under normal use and service for one (1) year from the date of installation or start-up, or for eighteen (18) months after the date of shipment, whichever occurs first.
  • Page 37 800 Airport Road, North Aurora, IL 60542 phone: 630-859-7000 fax: 630-859-1226 website: www.AuroraPump.com ED11012 (07/08/13)

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