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OM-07087-01 January 4, 2017 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 14D52-1B50 FT4 S/G GORMAN‐RUPP PUMPS www.grpumps.com 2017 Gorman‐Rupp Pumps Printed in U.S.A.
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Register your new Gorman‐Rupp pump online at www.grpumps.com/register. 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.
10 SERIES OM-07087 INTRODUCTION Thank You for purchasing a Gorman‐Rupp pump. HAZARD AND INSTRUCTION Read this manual carefully to learn how to safely DEFINITIONS install and operate your pump. Failure to do so could result in personal injury or damage to the The following are used to alert maintenance per...
10 SERIES OM-07087 SAFETY - SECTION A This information applies to 10 Series en may damage the pump or endanger per gine driven pumps. Refer to the manual sonnel as a result of pump failure. accompanying the engine before at...
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10 SERIES OM-07087 pump can cause parts being disen gaged to be ejected with great force. Al low the pump to cool before servicing. Fuel used by internal combustion en gines presents an extreme explosion and fire hazard. Make certain that all...
10 SERIES OM-07087 INSTALLATION - SECTION B Review all SAFETY information in Section A. specific application. Since the pressure supplied to the pump is critical to performance and safety, Since pump installations are seldom identical, this be sure to limit the incoming pressure to 50% of the...
OM-07087 10 SERIES ing, check for loose hardware at mating sur sion. Connect and tighten the positive cable first, faces. then the negative cable. c. Carefully read all tags, decals, and markings POSITIONING PUMP on the pump assembly, and perform all duties indicated.
10 SERIES OM-07087 To ensure sufficient lubrication and fuel supply to Connections to Pump the engine, do not position the pump and engine Before tightening a connecting flange, align it ex more than 15 off horizontal for continuous opera actly with the pump port. Never pull a pipe line into tion.
OM-07087 10 SERIES strainer furnished with the pump will also pass tion inlet because the inflow will carry air down into through the pump itself. the sump, and air entering the suction line will re duce pump efficiency. If a strainer is not furnished with the pump, but is installed by the pump user, make certain that the If it is necessary to position inflow close to the suc...
10 SERIES OM-07087 Figure 2. Recommended Minimum Suction Line Submergence vs. Velocity stalled in the discharge line to protect the pump DISCHARGE LINES from excessive shock pressure and reverse rota tion when it is stopped. Siphoning Do not terminate the discharge line at a level lower than that of the liquid being pumped unless a si...
OM-07087 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. Never operate this pump unless there is liquid in the pump casing. The pump will not prime when dry.
OM-07087 10 SERIES slowly and guard against excessive shock pres OPERATION sure which could damage pipe ends, gaskets, sprinkler heads, and any other fixtures connected to the line. When the discharge line is completely filled, adjust the throttling valve to the required flow rate.
OM-07087 10 SERIES could result in personal injury or damage to the On engine driven pumps, reduce the throttle equipment. If backflushing is absolutely neces speed slowly and allow the engine to idle briefly be sary, liquid pressure must be limited to 50% of the fore stopping.
10 SERIES OM-07087 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. Switch off the engine ignition and dis connect the positive battery cable to ensure that the pump will remain in...
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OM-07087 10 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Air leak in suction line. Correct leak. FAILS TO DELIVER Lining of suction hose collapsed. Replace suction hose. RATED FLOW OR PRESSURE Leaking or worn seal or pump gasket.
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10 SERIES OM-07087 Record keeping is an essential component of a PREVENTIVE MAINTENANCE good preventive maintenance program. Changes Routine preventive maintenance of the pump will in suction and discharge gauge readings (if so maintain peak operating performance. Since equipped) between regularly scheduled inspec...
10 SERIES OM-07087 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 MODEL 14D52-1B50 FT4 S/G Based on 70 F (21 C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
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OM-07087 10 SERIES PARTS PAGE ILLUSTRATION Figure 1. Pump Model 14D52-1B50 FT4 S/G PAGE E - 2 MAINTENANCE & REPAIR...
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10 SERIES OM-07087 PARTS LIST Pump Model 14D52-1B50 FT4 S/G (From S/N 1623267 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.
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OM-07087 10 SERIES PARTS PAGE ILLUSTRATION 33 31 30 31 Figure 2. Pump Model 14D52-1B50 FT4 S/G (con't) PAGE E - 4 MAINTENANCE & REPAIR...
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10 SERIES OM-07087 PARTS LIST Pump Model 14D52-1B50 FT4 S/G (From S/N 1623267 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.
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OM-07087 10 SERIES ILLUSTRATION 13 14 15 16 17 18 20 21 Figure 3. Pump Parts Only PAGE E - 6 MAINTENANCE & REPAIR...
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10 SERIES OM-07087 PARTS LIST Pump Parts Only ITEM PART NAME PART ITEM PART NAME PART NUMBER NUMBER PUMP CASING SEE NOTE BELOW FLAT WASHER K08 15991 FILL PLUG ASSY 48271-065 STUD C0808 15991 -WARNING TAG 6588BH WING NUT BB08 15991...
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OM-07087 10 SERIES PUMP AND SEAL DISASSEMBLY 1. Familiarize yourself with this man AND REASSEMBLY ual. 2. Shut down the engine ignition and disconnect the positive battery Review all SAFETY information in Section A. cable to ensure that the pump will Follow the instructions on all tags, label and de...
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10 SERIES OM-07087 If no further disassembly is required, see Suction ing the impeller; tension on the seal spring will be Check Valve Installation. released as the impeller is unscrewed. Slide the impeller adjusting shims (31) off the stub Back Cover Removal shaft.
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OM-07087 10 SERIES failure. If necessary to reuse an old seal in an emer them if there are nicks or cuts on the ends. If any gency, carefully wash all metallic parts in fresh components are worn, replace the complete seal;...
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10 SERIES OM-07087 should be approximately the same as the I.D. of the NOTE seal spring. An alternate method of adjusting this clearance is to reach through the discharge port with a feeler Subassemble the rotating element into the retainer gauge and measure the gap.
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OM-07087 10 SERIES and check valve gasket with the previously re Remove the fill plug assembly (2). Fill the pump moved hardware (not shown). casing with clean liquid. Reinstall the fill plug and tighten it. Position the check valve assembly (29) in the suc...
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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...
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