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GORMAN-RUPP PUMPS U3A60-B Installation, Operation And Maintenance Manual

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C
OM-02845-OB01
April 11, 1986
Rev. E 07/25/01
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
U SERIES PUMP
MODEL
U3A60---B
INCLUDING: /F, /FM
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
D
Printed in U.S.A.
E
Copyright by the Gorman-Rupp Company

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  • Page 1 OM-02845-OB01 April 11, 1986 Rev. E 07/25/01 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST U SERIES PUMP MODEL U3A60---B INCLUDING: /F, /FM THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. Copyright by the Gorman-Rupp Company...
  • Page 2 TABLE OF CONTENTS INTRODUCTION ..........PAGE I --- 1 SAFETY --- SECTION A .

  • Page 3: Table Of Contents

    TABLE OF CONTENTS (continued) TROUBLESHOOTING --- SECTION D ......PAGE D --- 1 PREVENTIVE MAINTENANCE .
  • Page 4 U SERIES OM -- 02845 INTRODUCTION This Installation, Operation, and Maintenance pable of handling most non-volatile, non-corrosive manual is designed to help you achieve the best liquids containing specified entrained solids. The performance and longest life from your Gorman- basic material of construction for wetted parts is Rupp pump.
  • Page 5 U SERIES OM -- 02845 SAFETY --- SECTION A This information applies to U 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 most to the manual accompanying the power non-volatile, non-corrosive liquids con- source before attempting to begin...
  • Page 6 OM -- 02845 U SERIES charge valve, pump components will engaging the pump. deteriorate, and the liquid could come to a boil, build pressure, and cause the pump casing to rupture or explode. Use lifting and moving equipment in good repair and with adequate capacity to prevent injuries to personnel or dam- age to equipment.
  • Page 7 See Figure 1 for the approximate physical dimen- configuration, and priming must be tailored to the sions of this pump. OUTLINE DRAWING Figure 1. Pump Model U3A60-B PREINSTALLATION INSPECTION inspect the pump for damage which may have oc- curred during shipment. Check as follows: The pump assembly was inspected and tested be- fore shipment from the factory.
  • Page 8 OM -- 02845 U SERIES proximately 486 pounds (220 kg), not including a. Inspect the pump for cracks, dents, damaged threads, and other obvious damage. the weight of accessories and base. Customer in- stalled equipment such as suction and discharge b.
  • Page 9 U SERIES OM -- 02845 Materials slopes down to the pump at any point along the suction run, air pockets will be created. Either pipe or hose maybe used for suction and discharge lines; however, the materials must be Fittings compatible with the liquid being pumped.
  • Page 10 OM -- 02845 U SERIES Suction Line Positioning tion inlet because the inflow will carry air down into the sump, and air entering the suction line will re- duce pump efficiency. The depth of submergence of the suction line is If it is necessary to position inflow close to the suc- critical to efficient pump operation.
  • Page 11 U SERIES OM -- 02845 from excessive shock pressure and reverse rota- It is also recommended that pipe unions be in- tion when it is stopped. stalled at each 90_ elbow in a bypass line to ease disassembly and maintenance. In high discharge head applications (more than 30 feet), an excessive amount of liquid may be by- passed and forced back to the wet well under the...
  • Page 12 OM -- 02845 U SERIES ter the pump cools, drain the liquid from When the pump is fully primed, pressure resulting from flow against the valve diaphragm com- the pump by removing the casing drain presses the spring and closes the valve (Figure 4). plug.
  • Page 13 U SERIES OM -- 02845 DISCHARGE PIPE CLEAN-OUT COVER INSTALL AIR RELEASE VALVE IN HORIZONTAL POSITION DISCHARGE CHECK VALVE 90_ LONG RADIUS ELBOW SUPPORT PUMP DISCHARGE BRACKET SELF-PRIMING CENTRIFUGAL PUMP BLEED LINE 1” (25,4 MM) DIA. MIN. (CUSTOMER FURNISHED) EXTEND 6” SUCTION LINE (152,4 MM)
  • Page 14 OM -- 02845 U SERIES When checking alignment, disconnect the power source to ensure that the pump will remain inoperative. Adjusting the alignment in one direction may alter the alignment in another direc- Figure 6B. Aligning Non-Spider tion. check each procedure after altering Type Couplings alignment.
  • Page 15 U SERIES OM -- 02845 Do not operate the pump without the guards in place over the rotating parts. Exposed rotating parts can catch cloth- ing, fingers, or tools, causing severe in- jury to personnel. MISALIGNED: MISALIGNED: ALIGNED: SHAFTS SHAFTS SHAFTS PARALLEL AND NOT PARALLEL...
  • Page 16 OM -- 02845 U SERIES OPERATION --- SECTION C Review all SAFETY information in Section A. Add liquid to the pump casing when: 1. The pump is being put into service for the Follow the instructions on all tags, labels and de- first time.
  • Page 17 OM -- 02845 U SERIES be damaged and performance adversely affected to the line. When the discharge line is completely by incorrect rotation. If pump performance is not filled, adjust the throttling valve to the required flow within the specified limits (see the curve on page rate.
  • Page 18 OM -- 02845 U SERIES tion when removing the plug to prevent Before checking for the source of the leak, check injury to personnel from hot liquid. the point of installation of the vacuum gauge. As a safeguard against rupture or explosion due to STOPPING heat, this pump is equipped with a pressure relief valve which will open if vapor pressure within the...
  • Page 19 OM -- 02845 U SERIES rect level (see LUBRICATION in MAINTENANCE Checking bearing temperatures by hand is inaccu- rate. Bearing temperatures can be measured ac- AND REPAIR). Bearing overheating can also be curately by placing a contact-type thermometer caused by shaft misalignment and/or excessive vi- against the housing.

  • Page 20: Troubleshooting

    U SERIES OM -- 02845 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 or disconnect the power source to ensure that the pump will remain inoperative.
  • Page 21 OM -- 02845 U SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Air leak in suction line. Correct leak. PUMP STOPS OR FAILS TO DELIVER Lining of suction hose collapsed. Replace suction hose. RATED FLOW OR PRESSURE Leaking or worn seal or pump gasket. Check pump vacuum.

  • Page 22: Preventive Maintenance

    U SERIES OM -- 02845 TROUBLE POSSIBLE CAUSE PROBABLE REMEDY EXCESSIVE NOISE Cavitation in pump. Reduce suction lift and/or friction losses in suction line. Record vac- uum and pressure gauge readings and consult local representative or factory. Pumping entrained air. Locate and eliminate source of air bubble.
  • Page 23 OM -- 02845 U SERIES Preventive Maintenance Schedule Service Interval* Item Daily Weekly Monthly Semi- Annually Annually General Condition (Temperature, Unusual Noises or Vibrations, Cracks, Leaks, Loose Hardware, Etc.) Pump Performance (Gauges, Speed, Flow) Bearing Lubrication Seal Lubrication (And Packing Adjustment, If So Equipped) V-Belts (If So Equipped) Air Release Valve Plunger Rod (If So Equipped)

  • Page 24: Pump Maintenance And Repair

    MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK OPER- ATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL U3A60-B Based on 70_ F (21_ C) clear water at sea level Contact the Gorman-Rupp Company to verify per- formance or part numbers.
  • Page 25 OM -- 02845 U SERIES SECTION DRAWING TOP VIEW PRESSURE EQUALIZING PASSAGE Figure 1. Pump Model U3A60---B PAGE E -- 2 MAINTENANCE & REPAIR...

  • Page 26: Parts Lists

    OM -- 02845 U SERIES PARTS LIST Pump Model U3A60---B (From S/N 876859 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 PART...
  • Page 27 OM -- 02845 U SERIES SECTION DRAWING Figure 2. 44163---101 Repair Rotating Assembly PAGE E -- 4 MAINTENANCE & REPAIR...
  • Page 28 OM -- 02845 U SERIES PARTS LIST 44163---101 Repair Rotating Assembly ITEM PART MAT’L PART NAME NUMBER CODE IMPELLER 38619---015 11000 SEAL ASSEMBLY 46513---151 --- --- --- SEAL PLATE GASKET 10959G 20000 INBOARD OIL SEAL S1352 --- --- --- BEARING HOUSING 38251---508 10010 INBOARD BALL BEARING...

  • Page 29: Pump And Seal Disassembly And Reassembly

    OM -- 02845 U SERIES PUMP AND SEAL DISASSEMBLY 1. Familiarize yourself with this man- ual. AND REASSEMBLY 2. Disconnect or lock out the power source to ensure that the pump will Review all SAFETY information in Section A. remain inoperative. 3.

  • Page 30: Impeller Removal

    U SERIES OM -- 02845 The impeller (1) should be loosened while the rotat- rotating assembly by pulling straight away from the ing assembly is still secured to the pump casing. pump casing. Before loosening the impeller, remove the seal cav- NOTE ity drain plug (18) and drain the seal lubricant.

  • Page 31: Seal Removal

    OM -- 02845 U SERIES Seal Removal After removing the shaft and bearings, clean and inspect the bearings in place as follows. (Figure 2) Slide the integral shaft sleeve and rotating portion of the seal off the shaft as a unit. Use a pair of stiff wires with hooked ends to remove To prevent damage during removal from the stationary element and seat.

  • Page 32: Shaft And Bearing Reassembly And Installation

    U SERIES OM -- 02845 shaft. Position the outboard bearing (21) on the If bearing replacement is required, remove the out- board bearing snap ring (20), and use a bearing shaft with the integral snap ring on the bearing O.D. puller to remove the bearings from the shaft.

  • Page 33: Seal Installation

    OM -- 02845 U SERIES tilated area free from excessive heat, sparks, and flame. Read and follow all precautions printed on solvent contain- ers. When installing the shaft and bearings into the bearing bore, push against the outer Clean the seal cavity and shaft with a cloth soaked race.
  • Page 34 U SERIES OM -- 02845 O-RING ENGAGED WITH SEAL PLATE BORE This seal is not designed for operation at temperatures above 160 F (71 C). Do not use at higher operating temperatures. If the seal plate was removed, install the seal plate gasket (3).

  • Page 35: Impeller Installation

    OM -- 02845 U SERIES If necessary to reuse an old seal in an emer- Slide the rotating portion of the seal (consisting of gency, carefully separate the rotating and station- the integral shaft sleeve, spring centering washer, ary seal faces from the bellows retainer and sta- spring, bellows and retainer, and rotating element) tionary seat.

  • Page 36: Rotating Assembly Installation

    U SERIES OM -- 02845 NOTE and measure the gap. Add or subtract rotating as- sembly shims accordingly. Proceed with Rotating Assembly Installation be- fore installing the impeller capscrew and washer (28 and 29). The rotating assembly must be in- After the face clearance is set, tighten the hardware stalled in the pump casing in order to torque the im- securing the rotating assembly to the pump cas-...

  • Page 37: Final Pump Assembly

    OM -- 02845 U SERIES replace this valve with a substitute which has not or to a level just below the tapped vented plug hole. been specified or provided by the Gorman-Rupp Clean and reinstall the vented plug. Maintain the oil Company.
  • Page 38 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 ST. THOMAS, ONTARIO, CANADA...

This manual is also suitable for:

U series

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