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- Page 1 OM-06668-02 December 11, 2019 Rev. A - 11/10/2022 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST SUPER T SERIES PUMPS MODELS T4A75S‐B INCLUDING: /F, /FM, /WW GORMAN‐RUPP PUMPS www.grpumps.com 2019 Gorman‐Rupp Pumps Printed in U.S.A.
- 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 - SECTION A .
- Page 4 TABLE OF CONTENTS (continued) BEARING TEMPERATURE CHECK ......... . PAGE C - 4 TROUBLESHOOTING - SECTION D .
- Page 5 SUPER T SERIES OM-06668 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...
- Page 6 SUPER T SERIES OM-06668 SAFETY - SECTION A This information applies to Super T Se which may damage the pump or endan ries basic pumps. Gorman‐Rupp has no ger personnel as a result of pump fail control over or particular knowledge of ure.
- Page 7 OM-06668 SUPER T SERIES are not observed. Make certain that these parts with great force when they hoists, chains, slings or cables are in are disengaged. Allow the pump to good working condition and of suffi completely cool before servicing it. cient capacity and that they are posi...
- Page 8 SUPER T SERIES OM-06668 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 section offers only general recommendations and the maximum permissible operating pressure as practices required to inspect, position, and ar...
- Page 9 OM-06668 SUPER T SERIES PREINSTALLATION INSPECTION POSITIONING PUMP Lifting The pump assembly was inspected and tested be fore shipment from the factory. Before installation, inspect the pump for damage which may have oc curred during shipment. Check as follows: a. Inspect the pump for cracks, dents, damaged Death or serious personal injury and threads, and other obvious damage.
- Page 10 SUPER T SERIES OM-06668 (254 mm) must be maintained to permit removal of these gauges are desired for pumps that are not the cover. tapped, drill and tap the suction and discharge lines not less than 18 inches (457,2 mm) from the suction and discharge ports and install the lines.
- Page 11 OM-06668 SUPER T SERIES tight seal. Follow the sealant manufacturer's rec If two suction lines are installed in a single sump, ommendations when selecting and applying the the flow paths may interact, reducing the efficiency pipe dope. The pipe dope should be compatible of one or both pumps.
- Page 12 SUPER T SERIES OM-06668 In low discharge head applications (less than 30 DISCHARGE LINES feet or 9 meters), it is recommended that the by pass line be run back to the wet well, and located 6 Siphoning inches below the water level or cut‐off point of the low level pump.
- Page 13 OM-06668 SUPER T SERIES matic Air Release Valve will permit air to escape during operation. A closed manual shut‐ through the bypass line and then close automati off valve may cause a pump which has cally when the pump is fully primed and pumping lost prime to continue to operate with...
- Page 14 SUPER T SERIES OM-06668 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 FUR NISHED) DO NOT EX SUCTION TEND BELOW PUMP LINE...
- Page 15 OM-06668 SUPER T SERIES Adjusting the alignment in one direction may alter the alignment in another direc tion. check each procedure after altering alignment. Coupled Drives Figure 5. Aligning Non‐Spider Type Couplings Check parallel adjustment by laying a straightedge across both coupling rims at the top, bottom, and When using couplings, the axis of the power side.
- Page 16 SUPER T SERIES OM-06668 Select pulleys that will match the proper speed ra DRIVE BELT TENSIONING tio; overspeeding the pump may damage both General Rules of Tensioning pump and power source. For new drive belts, check the tension after 5, 20 and 50 hours of operation and re‐tension as re...
- Page 17 OM-06668 SUPER T 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 18 OM-06668 SUPER T SERIES After the pump has been primed, partially close the dicated by the arrow on the pump body discharge line throttling valve in order to fill the line and on the accompanying decal. Other slowly and guard against excessive shock pres wise, the impeller could become loosened sure which could damage pipe ends, gaskets, from the shaft and seriously damage the...
- Page 19 OM-06668 SUPER T SERIES Clog Removal and Wear Plate Clearance in the pump can reach boiling tempera tures, and vapor pressure within the pump can cause parts being disen gaged to be ejected with great force. Af ter the pump completely cools, drain the liquid from the pump by removing the Before attempting to open or service the casing drain plug.
- Page 20 OM-06668 SUPER T SERIES Shut off the pump. The vacuum gauge reading will Cold Weather Preservation immediately drop proportionate to static suction lift, and should then stabilize. If the vacuum reading In below freezing conditions, drain the pump to falls off rapidly after stabilization, an air leak exists. prevent damage from freezing.
- Page 21 SUPER T SERIES OM-06668 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 22 OM-06668 SUPER T SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Suction intake not submerged at Check installation and correct PUMP STOPS OR 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 23 SUPER T SERIES OM-06668 equipped) between regularly scheduled inspec PREVENTIVE MAINTENANCE 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 24 OM-06668 SUPER T SERIES 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 T4A75S‐B, Including /F, /FM, /WW Based on 70 F (21 C) clear water at sea level Contact the Gorman‐Rupp Company to verify per...
- Page 25 OM-06668 SUPER T SERIES ILLUSTRATION PARTS PAGE Figure 1. Pump Model T4A75S-B, Including /F, /FM, /WW PAGE E - 2 MAINTENANCE & REPAIR...
- Page 26 OM-06668 SUPER T SERIES PARTS LIST Pump Model T4A75S-B, Including /F, /FM, /WW (From S/N 1718872 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 27 OM-06668 SUPER T SERIES ILLUSTRATION Figure 2. Repair Rotating Assemblies PAGE E - 4 MAINTENANCE & REPAIR...
- Page 28 OM-06668 SUPER T SERIES PARTS LIST Repair Rotating Assemblies Note: Order complete Repair Rotating Assemblies for /WW model from the Pump Model Assembly Parts List on page E-3. Repair Rotating Assemblies for /WW models include all of the standard parts listed below. ITEM PART NAME PART...
- Page 29 OM-06668 SUPER T SERIES For power source disassembly and repair, consult PUMP AND SEAL DISASSEMBLY the literature supplied with the power source, or AND REASSEMBLY contact your local power source representative. Review all SAFETY information in Section A. Follow the instructions on all tags, label and decals Before attempting to open or service the attached to the pump.
- Page 30 SUPER T SERIES OM-06668 Inspect the wear plate and replace it if badly scored adequate protective clothing when or worn. To remove the wear plate, disengage the working on the pump or piping. hardware (34 and 35). Inspect the back cover O‐rings (15 and 16) and re place them if damaged or worn.
- Page 31 OM-06668 SUPER T SERIES iron) and a standard tee (see Figure 4). All threads NOTE are 1/2‐inch NPT. Do not pre‐assemble the tool. Do not remove the impeller until the rotating assem bly has been removed from the pump casing. APPROX.
- Page 32 SUPER T SERIES OM-06668 An alternate method of removing the stationary seal components is to remove the hardware (19 and 20) and separate the seal plate (3) and gasket (4) from the bearing housing (7). Position the seal To prevent damage during removal from plate on a flat surface with the impeller side down.
- Page 33 OM-06668 SUPER T SERIES Shaft and Bearing Reassembly and Installation NOTE If a hot oil bath is used to heat the bearings, both the (Figure 2) oil and the container must be absolutely clean. If the oil has been previously used, it must be thor Clean the bearing housing, shaft and all compo...
- Page 34 SUPER T SERIES OM-06668 Figure 2. Press the oil seal into the housing until the flammable. Use them only in a well ven face is just flush with the counterbored surface to tilated area free from excessive heat, ward the outside of the housing. sparks, and flame.
- Page 35 OM-06668 SUPER T SERIES RETAINER SEAL PLATE SPRING O‐RINGS IMPELLER SLEEVE O‐RING IMPELLER SHIMS IMPELLER SHAFT INTEGRAL SHAFT ROTATING STATIONARY SLEEVE BELLOWS ELEMENT ELEMENT SHEAR SPRING RING (SHEARED) CENTERING WASHER STATIONARY DRIVE BAND SEAT Figure 5. Cartridge Seal Assembly sure that the shaft threads are free of any tape resi due and clean as required before proceeding with seal installation.
- Page 36 SUPER T SERIES OM-06668 proper clearance as described in Impeller Instal O‐RING ENGAGED WITH SEAL PLATE lation and Adjustment. BORE If necessary to reuse an old seal in an emer gency, carefully separate the rotating and station ary seal faces from the bellows retainer and sta tionary seat.
- Page 37 OM-06668 SUPER T SERIES Slide the rotating portion of the seal (consisting of Proceed with Rotating Assembly Installation be the integral shaft sleeve, spring centering washer, fore installing the impeller capscrew and washer spring, bellows and retainer, and rotating element) (21 and 22).
- Page 38 SUPER T SERIES OM-06668 the adaptor with the flange hole and secure the as Screw the four adjusting screws (32) into the sembly with the check valve pin (38). tapped holes in the back cover plate until they are just flush with the machined surface on the back NOTE side of the cover plate.
- Page 39 OM-06668 SUPER T SERIES cover and tighten it. Refer to OPERATION, Section PRESSURE RELIEF VALVE C, before putting the pump back into service. MAINTENANCE (Figure 1) LUBRICATION The back cover is equipped with a pressure relief valve (not shown) to provide additional safety for Seal Assembly the pump and operator (refer to Liquid Tempera...
- Page 40 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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