ACDEU OM−04734−02 November 18, 2005 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 13E52−GX390 THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN-RUPP OF CANADA LIMITED D ST. THOMAS, ONTARIO, CANADA eCopyright by the Gorman-Rupp Company Printed in U.S.A.
Register your new Gorman-Rupp pump online at www.grpumps.com Valid serial number and e-mail address required. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. 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.
TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE I − 1 WARNINGS - SECTION A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE A − 1 INSTALLATION − SECTION B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE B − 1 Pump Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS (continued) PARTS LISTS: Pump Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pump End Assy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUMP AND SEAL DISASSEMBLY AND REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . Suction Check Valve Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 SERIES OM−04734 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 Installation, Operation, and Maintenance manual is designed to help you achieve the best performance and longest life from your GormanRupp pump. This pump is a 10 Series, semi-open impeller, selfpriming centrifugal model with a suction check valve.
10 SERIES OM−04734 SAFETY − SECTION A This information applies to 10 Series engine driven pumps. Refer to the manual accompanying the engine before attempting to begin operation. This manual will alert personnel to known procedures which require special attention, to those which could damage equipment, and to those which could be dangerous to personnel.
OM−04734 Overheated pumps can cause severe burns and injuries. If overheating of the pump occurs: 1. Stop the pump immediately. 2. Ventilate the area. 3. Allow the pump to completely cool. 4. Check the temperature before opening any covers, plates, gauges, or plugs. 5. Vent the pump slowly and cautiously. 6. Refer to instructions in this manual before restarting the pump. Do not remove plates, covers, gauges, pipe plugs, or fittings from an overheated pump.
10 SERIES OM−04734 INSTALLATION − SECTION B Review all SAFETY information in Section A. Since pump installations are seldom identical, this section offers only general recommendations and practices required to inspect, position, and arrange the pump and piping. specific application.
OM−04734 10 SERIES ing, check for loose hardware at mating surfaces. c. Carefully read all tags, decals, and markings on the pump assembly, and perform all duties indicated. d. Check levels and lubricate as necessary. Refer to LUBRICATION in the MAINTENANCE AND REPAIR section of this manual and perform duties as instructed. e. If the pump and engine have been stored for more than 12 months, some of the components or lubricants may have exceeded their maximum shelf life.
SERIES compatible with the liquid being pumped. If hose is used in suction lines, it must be the rigid-wall, reinforced type to prevent collapse under suction. Using piping couplings in suction lines is not recommended. Line Configuration Keep suction and discharge lines as straight as possible to minimize friction losses. Make minimum use of elbows and fittings, which substantially increase friction loss. If elbows are necessary, use the long-radius type to minimize friction loss.
OM−04734 10 SERIES If it is necessary to position inflow close to the suction inlet, install a baffle between the inflow and the suction inlet at a distance 1-1/2 times the diameter of the suction pipe. The baffle will allow entrained air to escape from the liquid before it is drawn into the suction inlet. Suction Line Positioning The depth of submergence of the suction line is critical to efficient pump operation. Figure 2 shows recommended minimum submergence vs. velocity.
10 SERIES With high discharge heads, it is recommended that a throttling valve and a system check valve be installed in the discharge line to protect the pump from excessive shock pressure and reverse rotation when it is stopped. If the application involves a high discharge head, gradually close the discharge throttling valve before stopping the pump.
OM−04734 10 SERIES OPERATION − SECTION C Review all SAFETY information in Section A. Follow the instructions on all tags, labels and decals attached to the pump. This pump is designed to handle dirty water 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. Never tamper with the governor to gain more power.
OM−04734 Lines With a Bypass Close the discharge throttling valve (if so equipped) so that the pump will not have to prime against the weight of the liquid in the discharge line. Air from the suction line will be discharged through the bypass line back to the wet well during the priming cycle. When the pump is fully primed and liquid is flowing steadily from the bypass line, open the discharge throttling valve. Liquid will then continue to circulate through the bypass line while the pump is in operation.
OM−04734 10 SERIES Pump Vacuum Check With the pump inoperative, install a vacuum gauge in the system, using pipe dope on the threads. Block the suction line and start the pump. At operating speed the pump should pull a vacuum of 20 inches (508 mm) or more of mercury. If it does not, check for air leaks in the seal, gasket, or discharge valve. If the application involves a high discharge head, gradually close the discharge throttling valve before stopping the pump.
10 SERIES OM−04734 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. Shut down the engine and disconnect the spark plug wire to ensure that the pump will remain inoperative. 3. Allow the pump to completely cool if overheated. 4. Check the temperature before opening any covers, plates, or plugs. 5. Close the suction and discharge valves. 6. Vent the pump slowly and cautiously. 7.
OM−04734 TROUBLE PUMP STOPS OR FAILS TO DELIVER RATED FLOW OR PRESSURE (cont.) PUMP REQUIRES TOO MUCH POWER PUMP CLOGS FREQUENTLY EXCESSIVE NOISE PAGE D − 2 10 SERIES POSSIBLE CAUSE PROBABLE REMEDY Leaking or worn seal or pump gasket. Check pump vacuum. Replace leaking or worn seal or gasket. Impeller or other wearing parts worn or damaged. Replace worn or damaged parts. Check that impeller is properly centered and rotates freely. Strainer clogged. Check strainer and clean if necessary.
10 SERIES OM−04734 PREVENTIVE MAINTENANCE Since pump applications are seldom identical, and pump wear is directly affected by such things as the abrasive qualities, pressure and temperature of the liquid being pumped, this section is intended only to provide general recommendations and practices for preventive maintenance. Regardless of the application however, following a routine preventive maintenance schedule will help assure trouble-free performance and long life from your Gorman-Rupp pump.
10 SERIES OM−04734 PUMP MAINTENANCE AND REPAIR - SECTION E MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPERATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODELS 13E52−GX390 Based on 70_ F (21_ C) clear water at sea level with minimum suction lift. Since pump installations are seldom identical, your performance may be different due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.
OM−04734 10 SERIES SECTION DRAWING PARTS PAGE Figure 1.
10 SERIES OM−04734 PARTS LIST Pump Model 13E52−GX390 (From S/N 1368838 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−04734 10 SERIES SECTION DRAWING Figure 2.
10 SERIES OM−04734 PARTS LIST Pump End Assembly 13E52−(GX390) ITEM NO.
OM−04734 10 SERIES PUMP AND SEAL DISASSEMBLY AND REASSEMBLY 3. 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. However, if it becomes necessary to inspect or replace the wearing parts, follow these instructions which are keyed to the sectional views (see Figures 1 and 2) and the accompanying parts lists.
OM−04734 10 SERIES pump casing. Inspect the wear plate and, if replacement is required, remove the hardware (16 and 17) securing it to the back cover. Remove the cover plate gasket (19) and clean the mating surfaces. Pump Casing Removal under the rubber bellows. Slide the rotating portion of the seal off the shaft sleeve. Remove the nuts (11) and carefully slide the intermediate (12) and stationary portion of the seal off the shaft as a unit.
OM−04734 10 SERIES age. Clean and polish the shaft sleeve, or replace it if there are nicks or cuts on either end. If any components are worn, replace the complete seal; never mix old and new seal parts. If a replacement seal is being used, remove it from the container and inspect the precision finished SPRING RETAINER SPRING CENTERING WASHER faces to ensure that they are free of any foreign matter.
OM−04734 10 SERIES Continue to push the sleeve through the seal until it seats squarely against the shaft shoulder. Back Cover Installation Install the seal spring and spring centering washer. Inspect the wear plate (15) and replace it if badly worn or grooved. Install the wear plate on the back cover assembly (23) using the hardware (16 and 17). Lubricate the seal as indicated in LUBRICATION, after the impeller has been installed.
OM−04734 Be sure the pump and engine have been properly lubricated, see LUBRICATION. 10 SERIES LUBRICATION Seal Assembly (Figure 2) Remove the fill plug assembly (4, Figure 2) and fill the pump casing with clean liquid. Reinstall the fill plug and tighten it. The seal assembly is lubricated by the medium being pumped and no additional lubrication is required. Engine Refer to OPERATION, Section C, before putting the pump back into service.
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.
