GORMAN-RUPP PUMPS 03A3-B Installation, Operation, And Maintenance Manual With Parts List

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ABCE

COM‐01176‐02

September 21, 1981

Rev. E 06‐11‐2021

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

0 SERIES PUMP

MODEL

03A3-B

THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO

www.grpumps.com

GORMAN‐RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Printed in Canada.

2009 The Gorman‐Rupp Company

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Summary of Contents for GORMAN-RUPP PUMPS 03A3-B

Page 1 September 21, 1981 Rev. E 06‐11‐2021 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 0 SERIES PUMP MODEL 03A3-B THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in Canada. 2009 The Gorman‐Rupp Company...
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 INTRODUCTION ..........PAGE I - 1 SAFETY ‐...
Page 4 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR ‐ SECTION E ....PAGE E - 1 STANDARD PERFORMANCE CURVE ........PAGE E - 1 PARTS LIST: Pump End Assembly...
Page 5 0 SERIES OM-01176 INTRODUCTION Thank You for purchasing a Gorman‐Rupp pump. The following are used to alert maintenance per Read this manual carefully to learn how to safely sonnel to procedures which require special atten install and operate your pump. Failure to do so tion, to those which could damage equipment, and could result in personal injury or damage to the to those which could be dangerous to personnel:...
Page 6 0 SERIES OM-01176 SAFETY ‐ SECTION A This information applies to 0 Series ba sic pumps. Gorman‐Rupp has no con trol over or particular knowledge of the power source which will be used. Refer This pump is designed to handle petro to the manual accompanying the power leum products or other clean liquids source before attempting to begin oper...
Page 7 OM-01176 0 SERIES tional Electric Code and all local codes. If there is a conflict between the instruc tions in the manual accompanying the unit and the National Electric Code or Do not operate the pump against a the applicable local code, the National closed discharge valve for long periods or local code shall take precedence.
Page 8 See Figure 1 for the approximate physical dimen some of the information such as mounting, line sions of this pump. OUTLINE DRAWING Figure 1. Pump Model 03A3-B PREINSTALLATION INSPECTION b. Check for and tighten loose attaching hard ware. Since gaskets tend to shrink after dry...
Page 9 OM-01176 0 SERIES AND REPAIR section of this manual and per The pump may have to be supported or shimmed form duties as instructed. to provide for level operation or to eliminate vibra tion. e. If the pump and engine have been stored for SUCTION AND DISCHARGE PIPING more than 12 months, some of the compo...
Page 10 0 SERIES OM-01176 ommendations when selecting and applying the SUCTION LINES pipe dope. The pipe dope should be compatible with the liquid being pumped. To avoid air pockets which could affect pump prim ing, the suction line must be as short and direct as Suction Lines In Sumps possible.
Page 11 OM-01176 0 SERIES Figure 2. Recommended Minimum Suction Line Submergence vs. Velocity DISCHARGE LINES head, gradually close the discharge throttling valve before stopping the pump. Siphoning ALIGNMENT Do not terminate the discharge line at a level lower than that of the liquid being pumped unless a si The alignment of the pump and its power source is phon breaker is used in the line.
Page 12 0 SERIES OM-01176 When checking alignment, disconnect the power source to ensure that the pump will remain inoperative. Figure 3B. Aligning Non‐Spider Type Couplings Adjusting the alignment in one direction Align non‐spider type couplings by using a feeler may alter the alignment in another direc gauge or taper gauge between the coupling halves tion.
Page 13 OM-01176 0 SERIES Tighten the belts in accordance with the belt manu Ideal drive belt tension is the lowest tension at facturer's instructions. If the belts are too loose, which the belt will not slip under peak load condi they will slip; if the belts are too tight, there will be tions.
Page 14 OM-01176 0 SERIES OPERATION - SECTION C Review all SAFETY information in Section A. coming liquid to evacuate the air. After the pump and piping system have completely filled, evacu Follow the instructions on all tags, labels and ate any remaining air pockets in the pump or suc decals attached to the pump.
Page 15 OM-01176 0 SERIES ature supplied with the motor for specific instruc Overheating can occur if operated with the valves tions. in the suction or discharge lines closed. Operating against closed valves could bring the liquid to a boil, build pressure, and cause the pump to rup OPERATION ture or explode.
Page 16 OM-01176 0 SERIES Before checking for the source of the leak, check Checking bearing temperatures by hand is inaccu the point of installation of the vacuum gauge. rate. Bearing temperatures can be measured ac curately by placing a contact‐type thermometer against the housing.
Page 17 OM-01176 0 SERIES 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. Disconnect or lock out the power source to ensure that the pump will remain inoperative.
Page 18 OM-01176 0 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Suction intake not submerged at Check installation and correct FAILS TO DELIVER proper level or sump too small. submergence as needed. RATED FLOW OR Impeller or other wearing parts worn Replace worn or damaged parts.
Page 19 OM-01176 0 SERIES PREVENTIVE MAINTENANCE equipped) between regularly scheduled inspec tions can indicate problems that can be corrected Since pump applications are seldom identical, and before system damage or catastrophic failure oc pump wear is directly affected by such things as curs.
Page 20 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 03A3-B Based on 70_ F (21_ C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
Page 21 OM-01176 0 SERIES PARTS PAGE SECTION DRAWING Figure 1. Pump Model 03A3-B PAGE E - 2 MAINTENANCE & REPAIR...
Page 22 0 SERIES OM-01176 PARTS LIST Pump Model 03A3-B (From S/N 751140 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 PART NAME...
Page 23 OM-01176 0 SERIES PUMP AND SEAL DISASSEMBLY 4. Check the temperature before opening any covers, plates, or AND REASSEMBLY plugs. 5. Close the suction and discharge Review all SAFETY information in Section A. valves. Follow the instructions on all tags, label and de 6.
Page 24 0 SERIES OM-01176 ing by a press fit. If replacement is required, use a Shaft And Bearing Removal And Disassembly small bit to drill two holes through the ring horizon When the pump is properly operated and main tally, 180_ apart. Use a saw or chisel to complete tained, the pedestal should not require disassem...
Page 25 OM-01176 0 SERIES flammable. Use them only in a well ven precautions printed on solvent contain tilated area free from excessive heat, ers. sparks, and flame. Read and follow all Inspect the shaft for distortion, nicks or scratches, precautions printed on solvent contain or for thread damage on the impeller end.
Page 26 0 SERIES OM-01176 After the bearings have been installed and allowed Lubricate the bearing housing as indicated in LU to cool, check to ensure that they have not moved BRICATION. away from the shaft shoulders in shrinking. If movement has occurred, use a suitably sized Seal Reassembly and Installation sleeve and a press to reposition the bearings against the shaft shoulders.
Page 27 OM-01176 0 SERIES ROTATING SPRING ELEMENT O‐RING RETAINER IMPELLER STATIONARY SEAT IMPELLER IMPELLER SHAFT IMPELLER ADJUSTING SHIMS SHAFT SLEEVE BELLOWS SEAL PLATE Figure 2. Seal Assembly sleeve until the seal face is just flush with the under cut end of the sleeve. Slide the assembled shaft sleeve and rotating por...
Page 28 0 SERIES OM-01176 Step 1 Step 2 Step 3 Figure 3. Centering Impeller Within Volute Scroll Install the correct thickness of impeller shims and NOTE install the impeller key (50) in the shaft keyway. After the pump casing has been installed, check for Align the impeller keyway with the key and slide the free shaft rotation.
Page 29 OM-01176 0 SERIES Bearings the oil more frequently if the pump is operated con tinuously or installed in an environment with rapid The pedestal was fully lubricated when shipped temperature change. from the factory. Check the oil level regularly through the sight gauge (28) and maintain it at the middle of the gauge.
Page 30 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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