GORMAN-RUPP PUMPS SC Series Installation, Operation, And Maintenance Manual With Parts List

Submersible mining pumps

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A1C1

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

SUBMERSIBLE MINING PUMPS

THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO

GORMAN‐RUPP OF CANADA LIMITED

WITH PARTS LIST

MODELS

SC6C1-E35 460/3

and

SC6C1-E35 575/3

www.grpumps.com

ST. THOMAS, ONTARIO, CANADA

2018 The Gorman‐Rupp Company

COM‐06279‐01

August 10, 2010

Rev. A 01/19/2018

Printed in Canada.

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Summary of Contents for GORMAN-RUPP PUMPS SC Series

Page 1 A1C1 COM‐06279‐01 August 10, 2010 Rev. A 01/19/2018 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST SUBMERSIBLE MINING PUMPS MODELS SC6C1-E35 460/3 SC6C1-E35 575/3 THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in Canada. 2018 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) PARTS LISTS: Pump Assemblies ............PAGE E - 3 Terminal Housing and Cable Assemblies .
Page 5 SC SERIES PUMPS OM-06279 INTRODUCTION Thank You for purchasing a Gorman‐Rupp SC Se RECORDING MODEL AND ries Pump. Read this manual carefully to learn SERIAL NUMBER how to safely install and operate your pump. Fail ure to do so could result in personal injury or dam...
Page 6 SC SERIES PUMPS OM-06279 damage which could result from failure to follow the procedure. Hazards or unsafe practices which COULD NOTE result in minor personal injury or product or Instructions to aid in installation, operation, and property damage. These instructions de...
Page 7 OM-06279 SC SERIES PUMPS SAFETY - SECTION A This information applies to the SC Se ries submersible motor driven pumps indicated on the front cover of this manual. Before connecting any cable to the con trol box, be sure to ground the control Because pump installations are seldom box.
Page 8 OM-06279 SC SERIES PUMPS er supply to the control box has been trician to troubleshoot, test and/or ser otherwise cut off and locked out, before vice the electrical components of this attempting to open or service the pump pump. assembly. Tag electrical circuits to pre...
Page 9 Pump Model Designation LUBRICATION Following is a description of the model numbering system for SC Series pumps. These submersible These pumps utilize two lubrication cavities. The pumps are available in a range of sizes. Refer to the motor housing cavity provides lubrication to the following chart to identify the size of your specific motor assembly and bearings, while the intermedi...
Page 10 OM-06279 SC SERIES PUMPS equipment as outlined in the National to prevent liquid from wicking through the Electric Code. Follow all safety require cable and into the motor. ments. Failure to observe these require NOTE ments could result in injury or death to Refer to the performance curve in Maintenance personnel.
Page 11 OM-06279 SC SERIES PUMPS Positioning the Pump The pump will operate if positioned on its side, but this is not recommended because the motor NOTE torque could cause the pump to roll during opera Before installing and operating the pump, check tion.
Page 12 OM-06279 SC SERIES PUMPS ting near the pump. The discharge line must be in sible to the operator, and located close enough to dependently supported to avoid strain and vibra the pump to avoid excessive voltage drop due to tion on the pump.
Page 13 OM-06279 SC SERIES PUMPS be of the proper size and type to ensure an ade Table B‐3. Pump Voltage Requirements quate voltage supply to the pump. Voltage avail MAXIMUM NOMINAL MINIMUM PHASE VOLTAGE able at the motor must be within the range indi...
Page 14 OM-06279 SC SERIES PUMPS c. Buried electrode: If rock or stone prevents this pump is high enough to cause inju embedding the full 8 foot (2,4 m) length of the ry or death. Obtain the services of a ground rod, bury it horizontally in a trench.
Page 15 OM-06279 SC SERIES PUMPS Connect the pump power cable to the control box NOTE as shown in the wiring diagrams in the control box For reference, internal motor wiring connections manual. Use conduit or cable clamps to secure the are shown in Maintenance and Repair - Section power cable to the control box.
Page 16 OM-06279 SC SERIES PUMPS PUMP PUMP CONTROL BOX CONTROL BOX TO LEVEL CONTROL CIRCUIT TO LEVEL CONTROL CIRCUIT IN MAIN CONTROL BOX IN MAIN CONTROL BOX LIQUID LEVEL LIQUID LEVEL RANGE RANGE DEWATERING DEWATERING ON (FILLING) ON (FILLING) Figure B-4. Liquid Level Devices cluded with the option before making wir...
Page 17 SC SERIES PUMPS OM-06279 OPERATION - SECTION C GENERAL INFORMATION Review all SAFETY information in Section A. The pump motor and control box are not designed to be explosion‐proof. Do not operate in an explosive atmosphere. Any control box used to operate the This pump is designed to handle most pump must be approved by the Gor...
Page 18 OM-06279 SC SERIES PUMPS or thermal protection, or if the pump is operated 4. Check the temperature before ser against a closed discharge valve for an extended vicing. period of time. 5. Vent the pump slowly and cau tiously 6. Refer to instructions in this manual before restarting the pump.
Page 19 SC SERIES PUMPS OM-06279 this pump is high enough to cause inju ry or death. Make certain that incoming power is off and locked out before inter changing motor leads. Never start the pump more than 6 times per hour. If the pump motor does not cool be...
Page 20 OM-06279 SC SERIES PUMPS COLD WEATHER PRESERVATION To avoid serious damage to the pump, check for unusual noises or excessive vi Do not attempt to thaw the pump by us bration while the pump is running. If noise ing a torch or other source of flame. This or vibration is excessive, stop operation could damage gaskets, O‐rings or heat...
Page 21 SC SERIES PUMPS OM-06279 month thereafter. Check the motor lubrication level Adding Oil any time the pressure relief valve is activated, and Refer to Table B-2 in INSTALLATION for oil ca replace the oil annually. pacities and positions for filling the seal cavity in your pump.
Page 22 OM-06279 SC SERIES PUMPS Table C-1. Pump Oil Specifications Specifications: Type ......
Page 23 OM-06279 SC SERIES PUMPS TROUBLESHOOTING - SECTION D Review all SAFETY information in Section A. NOTE Many of the probable remedies listed in the TROU BLESHOOTING CHART require use of electrical test instruments; for specific procedures, see ELECTRICAL TESTING at the end of the chart.
Page 24 SC SERIES PUMPS OM-06279 TROUBLESHOOTING CHART (cont'd) TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Discharge head too high. Reduce discharge head or install MOTOR RUNS, BUT PUMP FAILS staging adaptor and additional TO DELIVER pump. RATED DIS Low or incorrect voltage. Measure control box voltage, both CHARGE.
Page 25 OM-06279 SC SERIES PUMPS ELECTRICAL TESTING 3. The pump submerged and running under full load. Make the electrical checks which follow to deter The voltage measured under each condition mine if pump malfunctions are being caused by must be the same.
Page 26 SC SERIES PUMPS OM-06279 the other test lead to each of the motor cable should be rechecked regularly. If resistance leads in turn. Note the readings. reads less than 1 megohm, insulation should be checked more closely and frequently. b. Readings will indicate resistance values in both the power cable and motor windings.If...
Page 27 OM-06279 SC SERIES PUMPS 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 SC6C1-E35 460/3 AND SC6C1-E35 575/3 Based on 70_F (21_C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
Page 28 SC SERIES PUMPS OM-06279 SECTION DRAWING PARTS PAGE Figure E-1. SC6C1-E35 460/3 And SC6C1-E35 575/3 Pump Assemblies PAGE E - 2 MAINTENANCE AND REPAIR...
Page 29 OM-06279 SC SERIES PUMPS SC6C1-E35 460/3 And SC6C1-E35 575/3 Pump Assemblies Parts List (From S/N 1480324 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.
Page 30 SC SERIES PUMPS OM-06279 SECTION DRAWING Figure E-2. Terminal Housing And Cable Assembly PAGE E - 4 MAINTENANCE AND REPAIR...
Page 31 OM-06279 SC SERIES PUMPS Terminal Housing And Cable Assembly Parts List ITEM PART MAT'L PART NAME NUMBER CODE TERMINAL GLAND 38381‐614 13040 POWER CABLE 47323‐016 CABLE GRIP 11227L STUD C0808 17000 HEX NUT 17000 GLAND BUSHING 31143‐067 19100 TERMINAL WASHER 31133‐122...
Page 32 SC SERIES PUMPS OM-06279 used, disconnect the piping before attempting to PUMP AND SEAL DISASSEMBLY AND move the pump. REASSEMBLY Review all SAFETY information in Section A. Do not attempt to lift the pump by the motor power cable or the piping. Attach proper lifting equipment to the lifting Do not attempt to service the pump as...
Page 33 OM-06279 SC SERIES PUMPS disturbed. Repair gaskets and O‐rings are listed in could indicate a breakdown in the waterproof in the Parts List. tegrity of the motor cavity, probably due to poor gaskets or seals. PUMP END DISASSEMBLY Positioning Pump For Disassembly...
Page 34 SC SERIES PUMPS OM-06279 Lower Seal Removal If no further disassembly is required, proceed to the appropriate areas in PUMP END REASSEMB (Figures E-1 and E-3) NOTE Carefully remove the seal spring. Lubricate the ro tor shaft (20) and work oil under the bellows as...
Page 35 OM-06279 SC SERIES PUMPS Inspect the rotor shaft (20) for damaged threads, Handle the seal parts with extreme care to prevent scoring, or nicks. Remove nicks and burrs with a damage. Be careful not to contaminate the preci fine file or hand honing stone to restore original sion finished faces;...
Page 36 SC SERIES PUMPS OM-06279 Clean the rotor shaft (20) and seal cavity area of the Slide the seal spring over the shaft and bellows re intermediate (10). Be sure the area is dry and free tainer, and install the spring retainer. Install the seal of lint and dirt.
Page 37 OM-06279 SC SERIES PUMPS surface damage. Because the rotating element moval. If this occurs, the lower bearing must be may not stay in the bellows retainer when turned pressed back into place (see MOTOR DISASSEM upside down, place a small amount of grease at BLY and MOTOR REASSEMBLY).
Page 38 SC SERIES PUMPS OM-06279 Apply `Never‐Seez' or equivalent compound to the assembly. Tag electrical circuits to pre threads of the capscrews (5). Install the hardware vent accidental start‐up. (5, 6 and 7) and torque evenly in a cross sequence Carefully inspect any O‐rings or gaskets before re...
Page 39 OM-06279 SC SERIES PUMPS Quite often, pressure exerted on the bushing will Remove the hardware (21 and 22) securing the two deform the cable jacket. If such happens, addition bare ground wires from the terminal housing (8) via al oil and effort will be required to remove the bush...
Page 40 SC SERIES PUMPS OM-06279 Stator Removal (Figure E-1) To prevent damage during removal from Do not remove the stator (19) unless it is defective the shaft, it is recommended that bearings (open windings, insulation resistance low, or stator be cleaned and inspected in place. It is core damaged).
Page 41 OM-06279 SC SERIES PUMPS Relief Valve reassembly (see the parts lists for numbers). (Figure E-1) It is recommended that the relief valve assembly Stator Installation (28) be replaced at each overhaul, or at any time (Figure E-1) the pump motor overheats and activates the valve.
Page 42 SC SERIES PUMPS OM-06279 Clean all gasket and O‐ring surfaces of the motor stator to slide into the motor housing before the housing (17), completely removing any old gasket housing cools. and cement material. Inspect the sealing surfaces for burrs, nicks and pits which could cause a poor Heat the motor housing (17) with a torch to expand seal, and replace defective parts as required.
Page 43 OM-06279 SC SERIES PUMPS The bearings may be heated to ease installation. An induction heater, hot oil bath, electric oven, or hot plate may be used to heat the bearings. Bear ings should never be heated with a direct flame or When installing the bearing onto the shaft, directly on a hot plate.
Page 44 SC SERIES PUMPS OM-06279 Apply `Never‐Seez' or equivalent compound to the pletely waterproof. Injury or death may threads of the capscrews (41). Use two of the caps result from alterations. crews and lockwashers (42) to draw the intermedi Use oil to lightly lubricate the outside of the pump ate and bearing cap together.
Page 45 OM-06279 SC SERIES PUMPS nal plate. Inspect all parts for damage, and replace Slide a length of heat‐shrink tubing (13) up over as required. If the rubber bonding material on the each of the power cable leads. Insert the leads in terminal plate (16) is severely worn or cracked, the the terminal collars and secure them using the al...
Page 46 SC SERIES PUMPS OM-06279 NOTE Do not use a mold or reservoir with the silicone adhesive. All air pockets, voids or gaps in the sili See Figure E-5 and check terminal locations. Ap cone sealant must be removed to en...
Page 47 OM-06279 SC SERIES PUMPS Trim the potting mold so it is just long enough to Terminal Housing Installation cover the terminal collars. Slide the potting mold (Figure E-2) up over the leads of the power cable and control cable. After the terminal plate has been sealed, slide the terminal housing down the cable.
Page 48 SC SERIES PUMPS OM-06279 See FINAL ASSEMBLY and VACUUM TESTING Use a manometer with a range of 30 to 0 to 30 inch followed by LUBRICATION. es of mercury to perform the test. Do not use a vac uum gauge. Vacuum gauges are not sensitive enough to detect minor leaks.
Page 49 OM-06279 SC SERIES PUMPS Pump Duration Seal Cavity Duration Motor Cavity Model (Minutes) Vacuum (Minutes) Vacuum (In. Hg.) (In. Hg.) SC6C LUBRICATION mally low, or the color milky or dark, refer to Drain ing Oil From Seal Cavity in this section for instruc...
Page 50 SC SERIES PUMPS OM-06279 Motor Housing Cavity With the pump in an upright position, remove the pipe cap (26) on the top of the pump. See Table E‐2 and add the recommended grade of lubricant Never attempt to fill the motor cavity (Table E‐3) to the motor cavity.
Page 52 For U.S. and International Warranty Information, Please Visit www.grpumps.com/warranty or call: U.S.: 419-755-1280 International: +1-419-755-1011 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:

Sc6c1-e35 460/3 Sc6c1-e35 575/3