OM-00828-02 April 20, 1982 Rev. F 03-14-05 ACE INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 80 SERIES PUMP MODEL 82H2−B THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.gormanrupp.com GORMAN-RUPP OF CANADA LIMITED D ST. THOMAS, ONTARIO, CANADA eCopyright by the Gorman-Rupp Company Printed in U.S.A.
TABLE OF CONTENTS INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE I − 1 SAFETY - SECTION A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE A − 1 INSTALLATION − SECTION B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE B − 1 Pump Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TABLE OF CONTENTS (continued) TROUBLESHOOTING − SECTION D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUMP MAINTENANCE AND REPAIR - SECTION E . . . . . . . . . . . . . . . . . PERFORMANCE CURVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PARTS LIST: Pump Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
80 SERIES OM−00828 INTRODUCTION Thank You for purchasing a Gorman-Rupp pump. Read this manual carefully to learn how to safely install and operate your pump. Failure to do so could result in personal injury or damage to the pump.
80 SERIES OM−00828 SAFETY - SECTION A This information applies to 80 Series basic pumps. Gorman-Rupp has no control over or particular knowledge of the power source which will be used. Refer to the manual accompanying the power source before attempting to begin operation. Because pump installations are seldom identical, this manual cannot possibly provide detailed instructions and precautions for each specific application.
OM−00828 Do not operate the pump against a closed discharge valve for long periods of time. If operated against a closed discharge valve, pump components will deteriorate, and the liquid could come to a boil, build pressure, and cause the pump casing to rupture or explode. Overheated pumps can cause severe burns and injuries. If overheating of the pump occurs: 1. Stop the pump immediately. 2. Ventilate the area. 3. Allow the pump to completely cool. 4.
80 SERIES OM−00828 INSTALLATION − SECTION B Review all SAFETY in Section A. Since pump installations are seldom identical, this section offers only general recommendations and practices required to inspect, position, and arrange the pump and piping. Most of the information pertains to a standard static lift application where the pump is positioned above the free level of liquid to be pumped.
OM−00828 PREINSTALLATION INSPECTION The pump assembly was inspected and tested before shipment from the factory. Before installation, inspect the pump for damage which may have occurred during shipment. Check as follows: a. Inspect the pump for cracks, dents, damaged threads, and other obvious damage. b. Check for and tighten loose attaching hardware. Since gaskets tend to shrink after drying, check for loose hardware at mating surfaces. c.
80 SERIES Materials Either pipe or hose maybe used for suction and discharge lines; however, the materials must be compatible with the liquid being pumped. If hose is used in suction lines, it must be the rigid-wall, reinforced type to prevent collapse under suction. Using piping couplings in suction lines is not recommended. Line Configuration Keep suction and discharge lines as straight as possible to minimize friction losses.
OM−00828 If there is a liquid flow from an open pipe into the sump, the flow should be kept away from the suction inlet because the inflow will carry air down into the sump, and air entering the suction line will reduce pump efficiency. If it is necessary to position inflow close to the suction inlet, install a baffle between the inflow and the suction inlet at a distance 1-1/2 times the diameter of the suction pipe.
80 SERIES OM−00828 stalled in the discharge line to protect the pump from excessive shock pressure and reverse rotation when it is stopped. bolts. The pump casing feet and/or pedestal feet, and the driver mounting bolts should also be tightly secured. If the application involves a high discharge head, gradually close the discharge throttling valve before stopping the pump. When checking alignment, disconnect the power source to ensure that the pump will remain inoperative.
OM−00828 80 SERIES the belts are a matched set; unmatched sets will cause accelerated belt wear. Figure 3B. Aligning Non-Spider Type Couplings Align non-spider type couplings by using a feeler gauge or taper gauge between the coupling halves every 90 degrees. The coupling is in alignment when the hubs are the same distance apart at all points (see Figure 3B). Check parallel adjustment by laying a straightedge across both coupling rims at the top, bottom, and side.
OM−00823 80 SERIES OPERATION − SECTION C Review all SAFETY information in Section A. Follow the instructions on all tags, labels and decals attached to the pump. 1. The pump is being put into service for the first time. 2. The pump has not been used for a considerable length of time. 3. The liquid in the pump casing has evaporated. Once the pump casing has been filled, the pump will prime and reprime as necessary.
OM−00823 Consult the operating manual furnished with the power source before attempting to start the power source. If an electric motor is used to drive the pump, remove V-belts, couplings, or otherwise disconnect the pump from the motor before checking motor rotation. Operate the motor independently while observing the direction of the motor shaft, or cooling fan. If rotation is incorrect on a three-phase motor, have a qualified electrician interchange any two of the three phase wires to change direction.
80 SERIES Pump Vacuum Check With the pump inoperative, install a vacuum gauge in the system, using pipe dope on the threads. Block the suction line and start the pump. At operating speed the pump should pull a vacuum of 20 inches (508,0 mm) or more of mercury. If it does not, check for air leaks in the seal, gasket, or discharge valve. Open the suction line, and read the vacuum gauge with the pump primed and at operation speed. Shut off the pump.
80 SERIES OM−00828 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. 3. Allow the pump to completely cool if overheated. 4. Check the temperature before opening any covers, plates, or plugs. 5. Close the suction and discharge valves. 6. Vent the pump slowly and cautiously. 7. Drain the pump.
OM−00828 TROUBLE PUMP STOPS OR FAILS TO DELIVER RATED FLOW OR PRESSURE (cont.) 80 SERIES POSSIBLE CAUSE Suction intake not submerged at proper level or sump too small. Check installation and correct submergence as needed. Impeller or other wearing parts worn or damaged. Replace worn or damaged parts. Check that impeller is properly centered and rotates freely. Check strainer and clean if necessary. Free impeller of debris. Strainer clogged. Impeller clogged.
80 SERIES OM−00828 PREVENTIVE MAINTENANCE Since pump applications are seldom identical, and pump wear is directly affected by such things as the abrasive qualities, pressure and temperature of the liquid being pumped, this section is intended only to provide general recommendations and practices for preventive maintenance. Regardless of the application however, following a routine preventive maintenance schedule will help assure trouble-free performance and long life from your Gorman-Rupp pump.
OM−00828 80 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 82H2−B Based on 70_ F (21 _ C) clear water at sea level with minimum suction lift. Since pump installations are seldom identical, your performance may be difference due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.
OM−00828 80 SERIES SECTION DRAWING PARTS PAGE Figure 1.
OM−00828 80 SERIES PARTS LIST Pump Model 82H2−B (From S/N716064up) 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 NO.
OM−00828 PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Review all SAFETY information Section A. Follow the instructions on all tags, label and decals attached to the pump. This pump requires little service due to its rugged, minimum-maintenance design. However, if it becomes necessary to inspect or replace the wearing parts, follow these instructions which are keyed to the sectional view (see Figure 1) and the accompanying parts lists.
80 SERIES OM−00828 measure and record their thickness for ease of reassembly. Impeller Removal Before removing the impeller, turn the cross arm on the automatic grease cup (4) clockwise until it rest against the cover (see Figure 4). This will prevent the grease from escaping when the impeller is removed. Immobilize the impeller by wedging a block wood between the vanes. If removed, install the shaft key (17).
OM−00828 Remove the setscrews (19) from the bearing retainer (20) and install two machine screws (#10−32 X 1−inch long, not supplied). Pry the retainer from the pedestal bore using a pair of screwdrivers against the heads of the machine screws. Do not use the machine screws to jack against the ball bearing. Remove the machine screws and reinstall the setscrews. Press the oil seal (21) from the bearing retainer, and remove the O-ring (15) from the pedestal bore.
80 SERIES oil and the container must be absolutely clean. If the oil has been previously used, it must be thoroughly filtered. Heat the bearings to a uniform temperature no higher than 250_F (120_C), and slide the bearings onto the shaft, one at a time, until they are fully seated. This should be done quickly, in one continuous motion, to prevent the bearings from cooling and sticking on the shaft.
OM−00828 80 SERIES non-oil based solvent and a clean, lint-free tissue. Wipe lightly in a concentric pattern to avoid scratching the faces. Inspect the seal components for wear, scoring, grooves, and other damage that might cause leakage. Clean and polish the shaft sleeve, or replace it if there are nicks or cuts on either end. If any components are worn, replace the complete seal; never mix old and new seal parts.
80 SERIES OM−00828 the pedestal (12) using two capscrews and nuts (3/8−16 UNC x 1−1/2 inch long, not supplied). Pump Casing Installation Slide the inboard rotating element into the lubricated seal liner with the chamfered side toward the shaft sholder. If the wear plate (31) was removed, position the replacement wear plate assembly squarely against the casing shoulder and secure it with the mounting hardware (35, 36, 38 and 39). Replace the fiber washer (39) if badly worn or compressed.
OM−00828 80 SERIES secure with the nuts (41). Check the operation of the check valve to ensure proper seating and free movement. Fill the pump casing with clean liquid. Reinstall the fill plug (49) and tighten it. Refer to OPERATION, Section C, before putting the pump back into service. Final Pump Assembly Be sure the pump and power source are securely mounted to the base. Reconnect the power source to the pump. Install the suction and discharge lines and open all valves.
80 SERIES OM−00828 For cold weather operation, consult the factory or a lubricant supplier for the recommended grade of oil. Monitor the condition of the bearing lubricant regularly for evidence of rust or moisture condensation. This is especially important in areas where variable hot and cold temperatures are common. MAINTENANCE & REPAIR Power Source Consult the literature supplied with the power source, or contact your local power source representative.
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 D ST.
