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GORMAN-RUPP PUMPS 10 Series Installation, Operation And Maintenance Manual

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ACEGU
OM−05215−OE01
February 8, 2001
Rev. A 10-22-08
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
10 SERIES PUMPS
MODEL
12A1-11
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
D
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
Printed in U.S.A.
E
Copyright by the Gorman-Rupp Company

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  • Page 1 ACEGU OM−05215−OE01 February 8, 2001 Rev. A 10-22-08 INSTALLATION, OPERATION, AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMPS MODEL 12A1-11 THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. Copyright by the Gorman-Rupp Company...
  • Page 2 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ..........PAGE I −...
  • Page 4 TABLE OF CONTENTS (continued) Suction Check Valve Removal ......... . . PAGE E −...

  • Page 5: Introduction

    Rupp pump. used to handle most non-volatile, non-flammable liquids containing specified entrained solids. The This pump is a 10 Series, semi-open impeller, self- pump is constructed of die cast aluminum, with a priming centrifugal model with a suction check cast iron volute scroll and impeller. The housing is valve.

  • Page 6: Safety − Section A

    10 SERIES OM−05215 SAFETY − SECTION A This information applies to 10 Series en- ing connections are tight, properly sup- ported and secure before operation. gine-driven pumps. Refer to the manual accompanying the engine before at- tempting to begin operation.
  • Page 7 OM−05215 10 SERIES free of leaks. Never refuel a hot or run- ning engine. Avoid overfilling the fuel tank. Always use the correct type of fuel. Never tamper with the governor to gain more power. The governor establishes safe operating limits that should not be exceeded.

  • Page 8: Installation − Section Bpage B

    10 SERIES OM−05215 INSTALLATION − SECTION B Review all SAFETY information in Section A. configuration, and priming must be tailored to the specific application. Since the pressure supplied Since pump installations are seldom identical, this to the pump is critical to performance and safety,...

  • Page 9: Positioning Pump

    OM−05215 10 SERIES c. Carefully read all warnings and cautions con- To ensure sufficient lubrication and fuel supply to tained in this manual or affixed to the pump, the engine, do not position the pump and engine and perform all duties indicated.

  • Page 10: Gauges

    10 SERIES OM−05215 Gauges high suction lift, all connections in the suction line should be sealed with pipe dope to ensure an air- Most pumps are drilled and tapped for installing tight seal. Follow the sealant manufacturer’s rec- discharge pressure and vacuum suction gauges. If...

  • Page 11: Discharge Lines

    OM−05215 10 SERIES Figure 2. Recommended Minimum Suction Line Submergence vs. Velocity DISCHARGE LINES With high discharge heads, it is recommended that a throttling valve and a system check valve be in- stalled in the discharge line to protect the pump...

  • Page 12: Operation − Section C

    OM−05215 10 SERIES OPERATION − SECTION C Review all SAFETY information in Section A. Add liquid to the pump casing when: Follow the instructions on all tags, labels and 1. The pump is being put into service for the decals attached to the pump.

  • Page 13: Starting

    OM−05215 10 SERIES STARTING a closed discharge throttling valve, pump components will deteriorate, and the liquid could come to a boil, build Consult the operations manual furnished with the pressure, and cause the pump casing to engine. rupture or explode.

  • Page 14: Pump Vacuum Check

    OM−05215 10 SERIES drop. If a vacuum suction gauge has been in- shock waves can be transmitted to the pump and stalled, monitor and record the readings regularly piping system. Close all connecting valves slowly. to detect strainer blockage. On engine driven pumps, reduce the throttle...

  • Page 15: Troubleshooting − Section Dpage D

    10 SERIES OM−05215 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. Shut down the engine and disconnect the spark plug to ensure that the pump will remain inoperative.
  • Page 16 OM−05215 10 SERIES TROUBLE POSSIBLE CAUSE PROBABLE REMEDY PUMP STOPS OR Leaking or worn seal or pump gasket. Check pump vacuum. Replace FAILS TO DELIVER leaking or worn seal or gasket. RATED FLOW OR Strainer clogged. Check strainer and clean if neces- PRESSURE (cont.)

  • Page 17: Preventive Maintenance Page D

    10 SERIES OM−05215 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 18: Pump Maintenance And Repair − Section Epage E

    10 SERIES OM−05215 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 12A1-11 *Based on 70_ F (21_ C) clear water at sea level with minimum suction lift.
  • Page 19 OM−05215 10 SERIES SECTIONAL DRAWING PARTS PAGE Figure 1. Pump Model 12A1-11 PAGE E − 2 MAINTENANCE & REPAIR...
  • Page 20 10 SERIES OM−05215 PARTS LIST Pump Model 12A1-11 (From S/N 1214905 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 MAT’L...

  • Page 21: Pump And Seal Disassembly And Reassembly

    OM−05215 10 SERIES Suction Check Valve Removal PUMP AND SEAL DISASSEMBLY AND REASSEMBLY Remove the drain plug (23) and drain the housing. Clean the plug and inspect the O-ring before rein- Review all SAFETY information in Section A. stalling. Loosen the screw handles (24), which secure the Follow the instructions on all tags, label and decals body (4) to the bracket (6).
  • Page 22 10 SERIES OM−05215 Remove the slinger ring (11) from the shaft. gency, carefully wash all metallic parts in fresh cleaning solvent and allow to dry thoroughly. If no further disassembly is required, refer to Seal Handle the seal parts with extreme care to prevent Reassembly And Installation.
  • Page 23 OM−05215 10 SERIES O.D. of the seat, and press this assembly into the impeller until fully seated. Impeller Installation This seal is not designed for operation at temperatures above 160_F (71_C). Do not Inspect the impeller, and replace it if cracked or use at higher operating temperatures badly worn.
  • Page 24 10 SERIES OM−05215 Rotate the impeller to be sure it is not binding on Install the suction and discharge lines and open all the volute. valves. Make certain that all connections are tight, and that the weight of the lines are independently supported.
  • Page 25 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...

This manual is also suitable for:

12a1-11

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