GORMAN-RUPP 88A2-B Installation, Operation And Maintanance Manual

80 series

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ACE

OM-00974-03

March 5, 1985

Rev. C 10-11-10

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

80 SERIES PUMP

MODEL

88A2-B

THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO

www.grpumps.com

GORMAN-RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

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Page 1 March 5, 1985 Rev. C 10-11-10 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 80 SERIES PUMP MODEL 88A2-B THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO www.grpumps.com GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. Copyright by the Gorman-Rupp Company...
Page 2 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:...
Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..........PAGE I −...
Page 4 TABLE OF CONTENTS (continued) PUMP MAINTENANCE AND REPAIR - SECTION E ....PAGE E − 1 STANDARD PERFORMANCE CURVE ........PAGE E −...
Page 5: Introduction
80 SERIES OM−00974 INTRODUCTION Thank You for purchasing a Gorman-Rupp pump. The following are used to alert maintenance per- Read this manual carefully to learn how to safely sonnel to procedures which require special atten- install and operate your pump. Failure to do so...
Page 6: Safety - Section A
Gorman-Rupp has no con- Do not attempt to pump liquids for trol over or particular knowledge of the which the pump, driver and/or controls power source which will be used. Refer...
Page 7 OM−00974 80 SERIES Overheated pumps can cause severe Never run this pump backwards. Be cer- burns and injuries. If overheating of the tain that rotation is correct before fully pump occurs: engaging the pump. 1. Stop the pump immediately. 2. Ventilate the area. 3.
Page 8: Installation − Section Bpage B
10 p.s.i. range the pump and piping. For further assistance, contact your Gorman-Rupp Most of the information pertains to a standard distributor or the Gorman-Rupp Company. static lift application where the pump is positioned above the free level of liquid to be pumped.
Page 9: Positioning Pump
See the performance curve on Page Gorman-Rupp distributor or the factory to deter- E−1 to be sure your overall application allows mine the repair or updating policy. Do not put the pump to operate within the safe operation range.
Page 10: Gauges
80 SERIES OM−00974 Lines near the pump must be independently sup- line, and that the openings will not permit passage ported to avoid strain on the pump which could of solids larger than the solids handling capability cause excessive vibration, decreased bearing life, of the pump.
Page 11: Discharge Lines
OM−00974 80 SERIES reduce the inlet velocity. Calculate the required NOTE submergence using the following formula based The pipe submergence required may be reduced on the increased opening size (area or diameter). by installing a standard pipe increaser fitting at the end of the suction line.
Page 12: Alignment
Check Rotation, Section C, before final alignment Figure 3A. Aligning Spider Type Couplings of the pump. When mounted at the Gorman-Rupp factory, driver and pump are aligned before shipment. Misalign- ment will occur in transit and handling. Pumps must be checked and realigned before operation.
Page 13: V-Belt Tensioning
Ideal v-belt tension is the lowest tension at which To use the Gorman-Rupp tensioner, measure the the belt will not slip under peak load conditions. Do belt span as shown in Figure 4. Position the bottom not over-tension v-belts.
Page 14 80 SERIES OM−00974 er at the measured belt span. Set the small O-ring Read the force applied from the bottom of the small on the deflection force scale to zero. O-ring on the deflection force scale. Compare this force with the value shown in Table 1 or 2 and ad- Place the tension tester squarely on the belt at the just the tension accordingly.
Page 15 OM−00974 80 SERIES Table 1. Sheave Diameter (Inches) Table 2. Sheave Diameter (Millimeters) Deflection Force (Lbs.) Deflection Force (KG.) Belt Deflection Force Belt Deflection Force Uncogged Cogged Uncogged Cogged Hy-T Belts & Torque-Flex Hy-T Belts & Torque-Flex Uncogged & Machined Uncogged &...
Page 16: Operation − Section C
OM−00974 80 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 first time. decals attached to the pump.
Page 17: Operation
OM−00974 80 SERIES sprinkler heads, and any other fixtures connected from the shaft and seriously damage the to the line. When the discharge line is completely pump. filled, adjust the throttling valve to the required flow Consult the operating manual furnished with the rate.
Page 18: Pump Vacuum Check
OM−00974 80 SERIES equipment. If backflushing is absolutely neces- Cold Weather Preservation sary, liquid pressure must be limited to 50% of the In below freezing conditions, drain the pump to maximum permissible operating pressure shown prevent damage from freezing. Also, clean out any on the pump performance curve (see Section E, solids by flushing with a hose.
Page 19: Troubleshooting − Section D
80 SERIES OM−00974 TROUBLESHOOTING − SECTION D Review all SAFETY information in Section A. Before attempting to open or service the pump: 1. Familiarize yourself with this man- ual. 2. Lock out or disconnect the power source to ensure that the pump will remain inoperative.
Page 20 OM−00974 80 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Impeller or other wearing parts worn Replace worn or damaged parts. PUMP STOPS OR FAILS TO DELIVER or damaged. Check that impeller is properly RATED FLOW OR centered and rotates freely. PRESSURE (cont.) Impeller clogged.
Page 21: Preventive Maintenance
Gorman-Rupp pump. For specific questions con- For new applications, a first inspection of wearing cerning your application, contact your Gorman- parts at 250 hours will give insight into the wear rate Rupp distributor or the Gorman-Rupp Company.
Page 22 OPERATING PERFORMANCE. STANDARD PERFORMANCE FOR PUMP MODEL 88A2−B Based on 70_ F (21_ C) clear water at sea level Contact the Gorman-Rupp Company to verify per- formance or part numbers. with minimum suction lift. Since pump installations are seldom identical, your performance may be dif- ference due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.
Page 23 80 SERIES OM−00974 SECTION DRAWING PARTS PAGE Figure 1. Pump Model 88A2−B PAGE E − 2 MAINTENANCE & REPAIR...
Page 24 PARTS LIST Pump Model 88A2-B (From S/N 818301 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 MAT’L...
Page 25 80 SERIES OM−00974 PUMP AND SEAL DISASSEMBLY 4. Check the temperature before opening any covers, plates, or AND REASSEMBLY plugs. 5. Close the suction and discharge Review all SAFETY information in Section A. valves. 6. Vent the pump slowly and cau- Follow the instructions on all tags, label and de- tiously.
Page 26 OM−00974 80 SERIES wise until it rests against the cover (see Figure 4) to tag the shims, or measure and record their thick- prevent the grease in the cup from escaping. Re- ness for ease of reassembly. move the grease cup and piping (11, 12, 13, 14 and 15).
Page 27 80 SERIES OM−00974 screwdrivers against the heads of the machine screws. After removing the bearing retainer, tight- en the machine screws. Bearings must be kept free of all dirt and Press the oil seal (22) from the bearing retainer, and remove the O-ring (20) from the pedestal bore. foreign material.
Page 28 OM−00974 80 SERIES NOTE Install a new O-ring (33) in the groove in the bear- ing cap. Slide the assembled bearing cap and oil Install the inboard bearing (17) with the integral re- seal over the shaft until fully seated against the taining ring on the O.D.
Page 29 80 SERIES OM−00974 gency, carefully wash all metallic parts in fresh if there are nicks or cuts on either end. If any com- cleaning solvent and allow to dry thoroughly. ponents are worn, replace the complete seal; never mix old and new seal parts. Handle the seal parts with extreme care to prevent damage.
Page 30 OM−00974 80 SERIES Before installing the seal, lubricate the seal liner the shaft until tight. Make sure the seal spring seats with water or a very small amount of oil, and apply squarely over the step on the back of the impeller. a drop of light lubricating oil on the finished faces.
Page 31 80 SERIES OM−00974 Before starting the pump, fill the pump casing with LUBRICATION clean liquid. Apply Never-Seez" or equivalent compound to the fill plug (8). Reinstall and tighten Seal Assembly the fill plug. Fill the grease cup (11) through the grease fitting with No.
Page 32 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...