OM-01477-04 September 13, 2010 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST D SERIES PUMP MODEL 2D−E.50 3P THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN-RUPP OF CANADA LIMITED D ST. THOMAS, ONTARIO, CANADA e2010 The Gorman-Rupp Company Printed in U.S.A.
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TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE I − 1 SAFETY - SECTION A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE A − 1 INSTALLATION − SECTION B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE B − 1 Pump Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS (continued) Plunger Rod and Diaphragm Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suction And Discharge Check Valve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plunger Rod Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D SERIES OM−01477 INTRODUCTION Thank You for purchasing a Gorman-Rupp pump. Read this manual carefully to learn how to safely install and operate your pump. Failure to do so could result in personal injury or damage to the pump. This is a D Series, positive displacement pump, utilizing a single-action diaphragm to produce a straight-through flow of liquid. The pump is flexcoupled to a 1/2 HP electric motor.
D SERIES OM−01477 SAFETY - SECTION A This information applies to D Series electric motor driven diaphragm pumps. Refer to the manual accompanying the motor before attempting to begin operation. Before attempting to open or service the pump: 1. Familiarize yourself with this manual. 2. Lock out and tag out incoming power to the motor to ensure that the pump will remain inoperative. 3. Allow the pump to completely cool if overheated. 4. Drain the pump.
OM−01477 Do not install and operate a non-explosion proof motor in an explosive atmosphere. Install, connect, and operate the motor in accordance with The National Electric Code and all local codes. If there is a conflict between the instructions in the manual accompanying the unit and The National Electric Code or the applicable local code, The National or local code shall take precedence.
D SERIES OM−01477 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 section offers only general recommendations and practices required to inspect, position, and arrange the pump and piping. Pump Dimensions See Figure 1 for the approximate physical dimensions of this pump. OUTLINE DRAWING Figure 1. Pump Model 2D-E.
OM−01477 nents or lubricants may have exceeded their maximum shelf life. These must be inspected or replaced to ensure maximum pump service. D SERIES The pump may have to be supported or shimmed to provide for level operation or to eliminate vibration. After the pump has been positioned, block the wheels and secure the pump to prevent creeping.
D SERIES OM−01477 during pump operation, the air must be replenished periodically. To introduce air into the chamber, stop the pump and remove the suction accumulator plug and integral gasket; this will break prime and allow the liquid in the chamber to drain away through the suction line.
OM−01477 ble length of suction hose or piping; lengths of 25 feet (7,6 m) or longer will reduce the capacity of the pump. It is strongly recommended that no positive shutoff valve be installed in the suction line; excessive restrictions will cause incomplete filling of the diaphragm chamber and result in short diaphragm life. Fittings Suction lines should be the same size as the pump inlet.
D SERIES OM−01477 matches the pump motor requirements stamped on the motor nameplate. The electrical power used to operate this pump is high enough to cause injury or death. Obtain the services of a qualified electrician to make all electrical connections. Make certain the pump 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 before making motor connections.
OM−01477 D SERIES OPERATION − SECTION C Review all SAFETY information in Section A. Follow the instructions on all tags, labels and decals attached to the pump. ened diaphragm life. No positive shut-off valve should be installed in the discharge line. STARTING This pump is designed to handle nonvolatile non-flammable liquids containing specified entrained solids. Do not attempt to pump volatile, corrosive, or flammable liquids which may damage the pump or endanger personnel as a result of pump failure.
OM−01477 STOPPING D SERIES eration. Also, clean out any solids by flushing with a hose. After stopping the pump, lock out and tag out incoming power to the motor to ensure that the pump will remain inoperative. GEARBOX TEMPERATURE CHECK If the pump will be idle for more than a few hours, or if it has been pumping liquids containing a large amount of solids, flush it with clean water. The gearbox runs higher than ambient temperatures because of heat generated by friction.
D SERIES OM−01477 TROUBLESHOOTING − SECTION D Review all SAFETY information in Section A. Before attempting to open or service the pump: 1. Familiarize yourself with this manual. 2. Lock out and tag out incoming power to ensure that the pump will remain inoperative. 3. Allow the pump to completely cool if overheated. 4. Drain the pump. TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP FAILS TO PRIME Air leak in suction line. Correct leak. Lining of suction hose collapsed. Replace suction hose.
OM−01477 D SERIES TROUBLE POSSIBLE CAUSE PUMP REQUIRES TOO MUCH POWER Liquid solution too thick. Dilute if possible. Integral discharge check valve clogged or binding. Clean valve. Bearings in motor or gearbox worn or binding. Check bearings. Integral suction or discharge check valve clogged, binding, or not seating properly. Clean valves, check that flange nuts are tight. Liquid solution too thick. Dilute if possible. Pump, gearbox, or motor not securely mounted.
D SERIES OM−01477 PUMP MAINTENANCE AND REPAIR - SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE.
OM−01477 D SERIES PARTS PAGE SECTION DRAWING Figure 1. 2D−E.
D SERIES OM−01477 PARTS LIST 2D−E.50 3P Pump Model (From S/N 1467825 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 NO.
OM−01477 D SERIES SECTION DRAWING Figure 2.
D SERIES OM−01477 PARTS LIST 46181−004 Plunger Rod Assembly ITEM NO.
OM−01477 D SERIES PUMP DISASSEMBLY AND REASSEMBLY For motor disassembly and repair, consult the literature supplied with the motor, or contact your local motor representative. Review all SAFETY information in Section A. Follow the instructions on all tags, label and decals attached to the pump. This pump requires little service due to its rugged, minimum-maintenance design.
D SERIES OM−01477 (1, Figure 2) is at the top of its stroke and the spring (8, Figure 2) is decompressed. through the holes in the upper diaphragm plate and secure with the nuts (14). Remove the tap screws (27) and eccentric guard assembly (13). (Figure 1) Remove the hardware (16 and 17) securing the retaining ring (11) to the diaphragm pot (22). Position the retainer ring (11) over the diaphragm.
OM−01477 LUBRICATION Plunger Rod Assembly (Figure 2) D SERIES Use a grease gun to apply No. 2 lithium base grease to the upper lubrication fitting until grease escapes from the eccentric cap. Lubricate the lower fitting (10) until grease escapes from the top of the upper diaphragm plate inside the spring. Gear Reducer The rod end should be lubricated thoroughly after each 8 hours of operation. Failure to do so may cause the rod end bearing to overheat and fail.
For U.S. and International Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419−755−1280 International: +1−419−755−1352 For Canadian Warranty Information, Please Visit www.grcanada.com/warranty or call: 519−631−2870 THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED D ST.
