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OM‐01479‐04
September 13, 2010
Rev. A - 7/1/19
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
D SERIES PUMP
MODEL
2D-X.75 3P
GORMAN‐RUPP PUMPS
www.grpumps.com
e
2010 Gorman‐Rupp Pumps
Printed in U.S.A.

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  • Page 1 OM‐01479‐04 September 13, 2010 Rev. A - 7/1/19 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST D SERIES PUMP MODEL 2D-X.75 3P GORMAN‐RUPP PUMPS www.grpumps.com 2010 Gorman‐Rupp Pumps Printed in U.S.A.
  • Page 2 Register your new Gorman‐Rupp pump online at www.grpumps.com Valid serial number and e‐mail address required. RECORD YOUR PUMP MODEL AND SERIAL NUMBER Please record your pump model and serial number in the spaces provided below. Your Gorman‐Rupp distributor needs this information when you require parts or service. Pump Model: Serial Number:...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ........... PAGE I - 1 SAFETY ‐...
  • Page 4 TABLE OF CONTENTS (continued) Plunger Rod and Diaphragm Removal ........PAGE E - 7 Suction And Discharge Check Valve Installation .
  • Page 5: Introduction

    This is a D Series, positive displacement pump, utilizing a single‐action diaphragm to produce a straight‐through flow of liquid. The pump is flex‐...
  • Page 6: Safety - Section A

    D SERIES OM-01479 SAFETY ‐ SECTION A This information applies to D Series electric motor driven diaphragm pumps. Refer to the manual accompa­ nying the motor before attempting to All electrical connections must be in ac­ begin operation. cordance with the National Electric Code.
  • Page 7 OM-01479 D SERIES drive components. It is strongly recom­ mended that unless absolutely necessary, no positive shut‐off valve be installed in the suction line; excessive restriction will Never install a positive shut‐off valve in the cause incomplete filling of the diaphragm discharge line;...
  • Page 8: Installation - Section B

    D SERIES OM-01479 INSTALLATION - SECTION B Review all SAFETY information in Section A. For further assistance, contact your Gorman‐Rupp distributor or the Gorman‐Rupp Company. Since pump installations are seldom identical, this Pump Dimensions section offers only general recommendations and practices required to inspect, position, and ar­...
  • Page 9: Positioning Pump

    OM-01479 D SERIES nents or lubricants may have exceeded their The pump may have to be supported or shimmed maximum shelf life. These must be inspected to provide for level operation or to eliminate vibra­ or replaced to ensure maximum pump serv­...
  • Page 10: Gauges

    D SERIES OM-01479 during pump operation, the air must be replen­ charge ports to absorb shock which would other­ ished periodically. To introduce air into the cham­ wise be transmitted through the drive train and ber, stop the pump and remove the suction accu­...
  • Page 11: Fittings

    OM-01479 D SERIES ble length of suction hose or piping; lengths of 25 pipe dope. The pipe dope should be compatible feet (7,6 m) or longer will reduce the capacity of the with the liquid being pumped. pump. DISCHARGE LINES It is strongly recommended that no positive shut‐...
  • Page 12 D SERIES OM-01479 matches the pump motor requirements stamped connections. Make certain the pump on the motor nameplate. and motor are properly grounded; never use gas pipe as an electrical ground. Be sure that the incoming power matches the voltage and phase of the motor be­...
  • Page 13: Operation - Section C

    OM-01479 D SERIES OPERATION - SECTION C Review all SAFETY information in Section A. ened diaphragm life. No positive shut‐off valve should be installed in the discharge Follow the instructions on all tags, labels and line. decals attached to the pump.
  • Page 14: Stopping

    OM-01479 D SERIES eration. Also, clean out any solids by flushing with a STOPPING hose. After stopping the pump, lock out and tag out in­ coming power to the motor to ensure that the GEARBOX TEMPERATURE CHECK pump will remain inoperative.
  • Page 15: Troubleshooting - Section D

    D SERIES OM-01479 TROUBLESHOOTING - SECTION D Review all SAFETY information in Section A. Before attempting to open or service the pump: 1. Familiarize yourself with this man­ ual. 2. Lock out and tag out incoming power to ensure that the pump will remain inoperative.
  • Page 16 OM-01479 D SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP REQUIRES Liquid solution too thick. Dilute if possible. TOO MUCH POWER Integral discharge check valve clogged Clean valve. or binding. Bearings in motor or gearbox Check bearings. worn or binding. Integral suction or discharge check...
  • Page 17: Pump Maintenance And Repair - Section E

    D SERIES OM-01479 PUMP MAINTENANCE AND REPAIR ‐ SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. IN GALLONS PER MINUTE AT 60 STROKES PER MINUTE STATIC STATIC DISCHARGE HEAD IN FEET...
  • Page 18 OM-01479 D SERIES PARTS PAGE SECTION DRAWING SUCTION DISCHARGE Figure 1. 2D-X.75 3P Pump Model PAGE E - 2 MAINTENANCE & REPAIR...
  • Page 19: Parts Lists

    D SERIES OM-01479 PARTS LIST 2D-X.75 3P Pump Model (From S/N 1462004 Up) If your pump serial number is followed by an “N”, your pump is NOT a standard production model. Contact the Gorman‐Rupp Company to verify part numbers. ITEM...
  • Page 20 OM-01479 D SERIES SECTION DRAWING Î Î Î Î Î Î Î Î Ç Ç Î Î Ç 3.00 5.69 ±.03 Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï Ï...
  • Page 21 D SERIES OM-01479 PARTS LIST 46181-004 Plunger Rod Assembly ITEM PART PART NAME NUMBER ECCENTRIC 38555-505 11060 SOCKET HD CAPSCREW BD0504 15990 ROD END 23924-005 HEX HD CAPSCREW B0807 15991 CAP PLUG 25141-151 HEX JAM NUT AT08S 15991 SPRING CENTERING WASHER...
  • Page 22: Pump Disassembly And Reassembly

    OM-01479 D SERIES PUMP DISASSEMBLY AND manual are performed only after estab­ lishing that neither personal safety nor REASSEMBLY pump integrity are compromised by such practices. Review all SAFETY information in Section A. Most service functions may be performed without Follow the instructions on all tags, label and de­...
  • Page 23: Suction And Discharge Check Valve Removal

    D SERIES OM-01479 (Figure 2) NOTE When appropriate recycling facilities are available, Loosen the socket head cap screw (2) and slide the user should recycle components and fluids the eccentric (1) off the motor shaft. Lift the as­ when doing any routine maintenance / repairs and sembled plunger rod assembly and diaphragm out also at the end of the pump’s useful life.
  • Page 24 OM-01479 D SERIES If removed, secure the key (14) in the gear reducer Refer to OPERATION, Section C before starting keyway with “Loctite Retaining Compound No. the pump. 680” or equivalent and slide the eccentric over the gear reducer shaft. Secure it by tightening the LUBRICATION socket head capscrew (2, Figure 2).
  • Page 25 For Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419-755-1280 Canada: 519-631-2870 International: +1-419-755-1352 GORMAN‐RUPP PUMPS...

This manual is also suitable for:

2d-x.75 3p

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