ACDE OM‐00621‐10 March 26, 1980 Rev. E 1‐16‐2014 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 13A2‐B THE GORMAN‐RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN‐RUPP OF CANADA LIMITED D ST. THOMAS, ONTARIO, CANADA e1980 The Gorman‐Rupp Company Printed in U.S.A.
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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 . . . . . . . . . . . . . . . . . STANDARD PERFORMANCE CURVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PARTS LIST: Pump Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 SERIES OM-00621 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. This pump is a 10 Series, semi‐open impeller, self‐ priming centrifugal model with a suction check valve. The pump is designed for handling most non‐volatile, non‐flammable liquids containing specified entrained solids.
10 SERIES OM-00621 SAFETY ‐ SECTION A This information applies to 10 Series ba sic pumps. Gorman‐Rupp has no con trol over or particular knowledge of the power source which will be used. Refer to the manual accompanying the power source before attempting to begin oper ation. This manual will alert personnel to known procedures which require spe cial attention, to those which could damage equipment, and to those which could be dangerous to personnel.
OM-00621 10 SERIES Do not operate the pump without the shields and/or guards in place over the drive shaft, belts, and/or couplings, or other rotating parts. Exposed rotating parts can catch clothing, fingers, or tools, causing severe injury to person nel. Do not operate the pump against a closed discharge valve for long periods of time.
10 SERIES OM-00621 INSTALLATION - SECTION B Review all SAFETY information in Section A. Since pump installations are seldom identical, this section offers only general recommendations and practices required to inspect, position, and ar range 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. configuration, and priming must be tailored to the specific application.
OM-00621 PREINSTALLATION INSPECTION 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 threads, and other obvious damage. b. Check for and tighten loose attaching hard ware. Since gaskets tend to shrink after dry ing, check for loose hardware at mating sur faces. c.
SERIES SUCTION AND DISCHARGE PIPING OM-00621 Installation closer to the pump may result in erratic readings. SUCTION LINES Pump performance is adversely effected by in creased suction lift, discharge elevation, and fric tion losses. See the performance curve on Page E-1 to be sure your overall application allows pump to operate within the safe operation range. Materials To avoid air pockets which could affect pump prim ing, the suction line must be as short and direct as possible.
OM-00621 10 SERIES sump at a distance equal to 1‐1/2 times the diame ter of the suction line. tance equal to at least 3 times the diameter of the suction pipe. If there is a liquid flow from an open pipe into the sump, the flow should be kept away from the suc tion inlet because the inflow will carry air down into the sump, and air entering the suction line will re duce pump efficiency.
10 SERIES OM-00621 DISCHARGE LINES Siphoning Do not terminate the discharge line at a level lower than that of the liquid being pumped unless a si phon breaker is used in the line. Otherwise, a si phoning action causing damage to the pump could result. Valves If a throttling valve is desired in the discharge line, use a valve as large as the largest pipe to minimize friction losses. Never install a throttling valve in a suction line.
OM-00621 10 SERIES AUTOMATIC AIR RELEASE VALVE A manual shut‐off valve should not be installed in any bypass line. A manual shut‐off valve may inadvertently be left closed during operation. A pump which has lost prime may continue to operate without reaching prime, causing dan gerous overheating and possible explo sive rupture of the pump casing. Per sonnel could be severely injured. Allow an over‐heated pump to com pletely cool before servicing.
10 SERIES OM-00621 DISCHARGE PIPE CLEAN‐OUT COVER INSTALL AIR RELEASE VALVE IN HORIZONTAL POSITION 90_ LONG RADIUS ELBOW SUPPORT BRACKET BLEED LINE 1” (25,4 MM) DIA. MIN. (CUSTOMER FUR NISHED) DO NOT EX TEND BELOW PUMP OFF LIQUID LEVEL DISCHARGE CHECK VALVE PUMP DISCHARGE SELF‐PRIMING CENTRIFUGAL PUMP SUCTION LINE WET WELL OR SUMP Figure 3. Typical Automatic Air Release Valve Installation Connect the valve outlet to a bleed line which slopes back to the wet well or sump.
OM-00621 10 SERIES Adjusting the alignment in one direction may alter the alignment in another direc tion. check each procedure after altering alignment. Check parallel adjustment by laying a straightedge across both coupling rims at the top, bottom, and side. When the straightedge rests evenly on both halves of the coupling, the coupling is in horizontal parallel alignment.
10 SERIES OM-00621 V‐BELT TENSIONING General Rules of Tensioning For new v‐belts, check the tension after 5, 20 and 50 hours of operation and re‐tension as required (see the following procedure for measuring belt tension). Thereafter, check and re‐tension if re quired monthly or at 500 hour intervals, whichever comes first. Ideal v‐belt tension is the lowest tension at which the belt will not slip under peak load conditions. Do not over‐tension v‐belts.
OM-00621 10 SERIES Table 1. Sheave Diameter (Inches) Deflection Force (Lbs.) Table 2. Sheave Diameter (Millimeters) Deflection Force (KG.) Belt Deflection Force Cross Section A,AX B,BX Smallest Sheave Diameter Range R.P.M. Range Uncogged Hy‐T Belts & Uncogged Hy‐T Torque Team Cogged Torque‐Flex & Machined Edge torque Team Belts Used Belt Used Belt New Belt 3.0 ‐ 3.6 1000‐2500 2501‐4000 3.7 2.8 5.5 4.2 4.1 3.4 6.1 5.0 3.8 ‐ 4.8 1000‐2500 2501‐4000 4.5 3.8 6.8 5.7 5.0 4.3 7.4 6.4 5.
OM-00621 10 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 consider able length of time. 3. The liquid in the pump casing has evapo rated. Once the pump casing has been filled, the pump will prime and reprime as necessary.
OM-00621 10 SERIES Consult the operating manual furnished with the power source before attempting to start the power source. filled, adjust the throttling valve to the required flow rate. If an electric motor is used to drive the pump, re move 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 cool ing fan.
OM-00621 10 SERIES maximum permissible operating pressure shown on the pump performance curve (see Section E, Page 1). 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 oper ating 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 dis charge valve.
10 SERIES OM-00621 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. 3. Allow the pump to completely cool if overheated. 4. Check the temperature before open ing any covers, plates, or plugs. 5. Close the suction and discharge valves. 6. Vent the pump slowly and cautiously. 7. Drain the pump.
OM-00621 10 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR FAILS TO DELIVER RATED FLOW OR PRESSURE (cont.) Impeller or other wearing parts worn or damaged. Replace worn or damaged parts. Check that impeller is properly centered and rotates freely. Impeller clogged. Free impeller of debris. Pump speed too slow. Check driver output; check belts or couplings for slippage. Discharge head too high. Install bypass line. Suction lift too high. Measure lift w/vacuum gauge.
10 SERIES OM-00621 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 pre ventive maintenance schedule will help assure trouble‐free performance and long life from your Gorman‐Rupp pump.
10 SERIES OM-00621 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 13A2-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 dif ferent due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.
OM-00621 10 SERIES PARTS PAGE SECTION DRAWING Figure E-1.
10 SERIES OM-00621 PARTS LIST Pump Model 13A2-B (From S/N 710664 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 NO. .1 2 3 .4 .5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 .29 30 31 32 33 34 35 36 37 .
OM-00621 PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Review all SAFETY information Section A. Follow the instructions on all tags, label and de cals attached to the pump. This pump requires little service due to its rugged, minimum‐maintenance design. However, if it be comes necessary to inspect or replace the wearing parts, follow these instructions which are keyed to the sectional view (see Figure 1) and the accompa nying parts list.
10 SERIES Back Cover Removal The wear plate assembly (32) is easily accessible and may be serviced by removing the back cover assembly (40). Loosen the clamp bar screw (46) and remove the clamp bar (45). Pull the back cover and wear plate from the pump casing. Remove the back cover gasket (39). Clean the mating surfaces of the back cover plate and pump casing.
OM-00621 If seal liner replacement is required, refer to Seal Reassembly and Installation. 10 SERIES After removing the shaft and bearings, clean and inspect the bearings in place as follows. If no further disassembly is required, see Seal Reassembly and Installation. Shaft and Bearing Removal and Disassembly When the pump is properly operated and main tained, the pedestal should not require disassem bly. Disassemble the shaft and bearings only when there is evidence of wear or damage.
10 SERIES OM-00621 Replace the bearings, shaft, or pedestal if the proper bearing fit is not achieved. curred, use a suitably sized sleeve and a press to reposition the bearings. If bearing replacement is required, use a bearing puller to remove the inboard and outboard bear ings from the impeller shaft. If heating the bearings is not practical, use a suit ably sized sleeve and an arbor (or hydraulic) press to install the bearings on the shaft.
OM-00621 10 SERIES Seal Reassembly and Installation (Figures 1 and 3) Clean the seal cavity and shaft with a cloth soaked in fresh cleaning solvent. Most cleaning solvents are toxic and flammable. Use them only in a well‐ven tilated area free from excessive heat, sparks, and flame. Read and follow all precautions printed on solvent contain ers. The seal is not normally reused because wear pat terns on the finished faces cannot be realigned during reassembly. This could result in premature failure.
10 SERIES OM-00621 Impeller Installation and Adjustment This seal is not designed for operation at temperatures above 110_F (43_C). Do not use at higher operating temperatures. Before installing the seal, inspect the bore of the seal liner (10) for wear or grooves which might cause leakage or damage to the seal packing rings. If the seal liner requires replacement, re move the seal plate assembly as described in Seal Removal And Disassembly, and position it on the bed of an arbor (or hydraulic) press.
OM-00621 10 SERIES leveling shims used under the mounting feet of the pump casing. Back Cover Installation If the wear plate (33) was removed for replace ment, secure it to the cover plate (43) using the at taching hardware (36 and 37) at this time. The wear plate must be concentric to prevent binding when the back cover is installed. Clean any scale or debris from the contacting sur faces on the pump casing that might prevent a good seal with the back cover.
10 SERIES OM-00621 POSITION WHEN EMPTY POSITION FOR FILLING GREASE FITTING POSITION WHEN IN USE CROSS ARM RELIEF HOLE Figure 4. Automatic Lubricating Grease Cup Bearings The pedestal was fully lubricated when shipped from the factory. Check the oil level regularly through the sight gauge (26) and maintain it at the middle of the gauge. When lubrication is required, add SAE No. 30 non‐detergent oil through the hole for the air vent (14). Do not over‐lubricate.
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.
