GORMAN-RUPP PUMPS 112E60-B Installation, Operation, And Maintenance Manual With Parts List

ACE OM-00905-03

July 22, 2004

Rev. B 02‐11‐14

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

112E60-B

THE GORMAN‐RUPP COMPANY MANSFIELD, OHIO

www.grpumps.com

GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

2004 The Gorman‐Rupp Company

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:

TABLE OF CONTENTS

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE I - 1

SAFETY - SECTION A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE A - 1

INSTALLATION - SECTION B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE B - 1

PREINSTALLATION INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

POSITIONING PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SUCTION AND DISCHARGE PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Line Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connections to Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SUCTION LINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fittings

Strainers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sealing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Lines In Sumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Line Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DISCHARGE LINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Siphoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bypass Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AUTOMATIC AIR RELEASE VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Air Release Valve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ALIGNMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Coupled Drives

V‐Belt Drives

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V‐BELT TENSIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Rules of Tensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tension Measurment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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OPERATION - SECTION C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE C - 1

PRIMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STARTING

Rotation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lines With a Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lines Without a Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Leakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Liquid Temperature And Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Strainer Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Vacuum Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STOPPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cold Weather Preservation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE C - 1

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TABLE OF CONTENTS

(continued)

BEARING TEMPERATURE CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE C - 3

TROUBLESHOOTING - SECTION D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAGE D - 1

PAGE D - 3

PUMP MAINTENANCE AND REPAIR - SECTION E . . . . . . . . . . . . . . . . .

PAGE E - 1

PERFORMANCE CURVE

PARTS LIST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PUMP AND SEAL DISASSEMBLY AND REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Check Valve Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Elbow And Wear Plate Removal

Impeller Removal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seal Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Casing Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shaft and Bearing Removal and Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shaft and Bearing Reassembly and Installation

Seal Reassembly and Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Impeller Installation And Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Casing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wear Plate And Suction Elbow Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Check Valve Installation

Final Pump Assembly

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PRESSURE RELIEF VALVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seal Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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PAGE E - 11 ii

10 SERIES OM-00905

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. The basic material of construction for wetted parts is gray iron, with stainless steel impeller shaft and ductile iron wear ing parts.

This manual will alert personnel to known proce dures which require special attention, to those which could damage equipment, and to those which could be dangerous to personnel. However, this manual cannot possibly anticipate and provide detailed precautions for every situation that might occur during maintenance of the unit. Therefore, it is the responsibility of the owner/maintenance per sonnel to ensure that only safe, established main tenance procedures are used, and that any proce dures not addressed in this manual are performed only after establishing that neither personal safety nor pump integrity are compromised by such prac tices.

If there are any questions regarding the pump or its application which are not covered in this man ual or in other literature accompanying this unit, please contact your Gorman‐Rupp distributor, or

The Gorman‐Rupp Company:

For information or technical assistance on the pow er source, contact the power source manufactur er's local dealer or representative.

The following are used to alert maintenance per sonnel to procedures which require special atten tion, to those which could damage equipment, and to those which could be dangerous to personnel:

Immediate hazards which WILL result in severe personal injury or death. These instructions describe the procedure re quired and the injury which will result from failure to follow the procedure.

Hazards or unsafe practices which

COULD result in severe personal injury or death. These instructions describe the procedure required and the injury which could result from failure to follow the procedure.

The Gorman‐Rupp Company

P.O. Box 1217

Mansfield, Ohio 44901-1217

Phone: (419) 755-1011 or:

Gorman‐Rupp of Canada Limited

70 Burwell Road

St. Thomas, Ontario N5P 3R7

Phone: (519) 631-2870

INTRODUCTION

Hazards or unsafe practices which COULD result in minor personal injury or product or property damage. These instructions describe the requirements and the possi ble damage which could result from failure to follow the procedure.

NOTE

Instructions to aid in installation, operation,and maintenance, or which clarify a procedure.

PAGE I - 1

10 SERIES OM-00905

SAFETY - SECTION A

This information applies to 10 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 be gin operation.

Because pump installations are seldom identical, this manual cannot possibly provide detailed instructions and pre cautions for each specific application.

Therefore, it is the owner/installer's re sponsibility to ensure that applications not addressed in this manual are per formed only after establishing that nei ther operator safety nor pump integrity are compromised by the installation.

non‐volatile, non‐flammable liquids containing specified entrained solids.

Do not attempt to pump volatile, corro sive, or flammable materials which may damage the pump or endanger person nel as a result of pump failure.

After the pump has been positioned, make certain that the pump and all pip ing connections are tight, properly sup ported and secure before operation.

Do not operate the pump without the guards in place over the rotating parts.

Exposed rotating parts can catch cloth ing, fingers, or tools, causing severe in jury to personnel.

Before attempting to open or service the pump:

1. Familiarize yourself with this man ual.

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 opening any covers, plates, or plugs.

5. Close the suction and discharge valves.

6. Vent the pump slowly and cau tiously.

7. Drain the pump.

This pump is designed to handle most

Do not remove plates, covers, gauges, pipe plugs, or fittings from an over heated pump. Vapor pressure within the pump can cause parts being disen gaged to be ejected with great force. Al low the pump to cool before servicing.

Do not operate the pump against a closed discharge valve for long periods of time. If operated against a closed dis charge valve, pump components will deteriorate, and the liquid could come to a boil, build pressure, and cause the pump casing to rupture or explode.

SAFETY PAGE A - 1

10 SERIES

Death or serious personal injury and damage to the pump or components can occur if proper lifting procedures are not observed. Make certain that hoists, chains, slings or cables are in good working condition and of suffi

OM-00905 cient capacity and that they are posi tioned so that loads will be balanced and the pump or components will not be damaged when lifting. Suction and dis charge hoses and piping must be re moved from the pump before lifting. Lift the pump or component only as high as necessary and keep personnel away from suspended objects.

PAGE A - 2 SAFETY

10 SERIES OM-00905

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.

If installed in a flooded suction application where the liquid is supplied to the pump under pressure, some of the information such as mounting, line configuration, and priming must be tailored to the specific application. Since the pressure supplied to the pump is critical to performance and safety, be sure to limit the incoming pressure to 50% of the maximum permissible operating pressure as shown on the pump performance curve (see Sec tion E, Page 1).

For further assistance, contact your Gorman‐Rupp distributor or the Gorman‐Rupp Company.

Pump Dimensions

See Figure B-1 for the approximate physical di mensions of this pump.

OUTLINE DRAWING

Figure B-1. Pump Model 112E60-B

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, engine or motor 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

INSTALLATION PAGE B - 1

OM-00905 10 SERIES ing, check for loose hardware at mating sur faces.

c. Carefully read all tags, decals, and markings on the pump assembly, and perform all duties indicated. Note that the pump shaft rotates in the required direction.

d. Check levels and lubricate as necessary. Re fer to LUBRICATION in the MAINTENANCE

AND REPAIR section of this manual and per form duties as instructed.

e. If the pump or power source have been stored for more than 12 months, some of the compo nents or lubricants may have exceeded their maximum shelf life. These must be inspected or replaced to ensure maximum pump serv ice.

If the maximum shelf life has been exceeded, or if anything appears to be abnormal, contact your

Gorman‐Rupp distributor or the factory to deter mine the repair or updating policy. Do not put the pump into service until appropriate action has been taken.

POSITIONING PUMP

Lifting

Death or serious personal injury and damage to the pump or components can occur if proper lifting procedures are not observed. Make certain that hoists, chains, slings or cables are in good working condition and of suffi cient capacity and that they are posi tioned so that loads will be balanced and the pump or components will not be damaged when lifting. Suction and dis charge hoses and piping must be re moved from the pump before lifting. Lift the pump or component only as high as necessary and keep personnel away from suspended objects.

PAGE B - 2

Pump unit weights will vary depending on the mounting and drive provided. Check the shipping tag on the unit packaging for the actual weight, and use lifting equipment with appropriate capacity.

Drain the pump and remove all customer‐installed equipment such as suction and discharge hoses or piping before attempting to lift existing, installed units.

Mounting

Locate the pump in an accessible place as close as practical to the liquid being pumped. Level mount ing is essential for proper operation.

The pump may have to be supported or shimmed to provide for level operation or to eliminate vibra tion.

If the pump has been mounted on a moveable base, make certain the base is stationary by setting the brake and blocking the wheels before attempt ing to operate the pump.

SUCTION AND DISCHARGE PIPING

Pump performance is adversely effected by in creased suction lift, discharge elevation, and fric tion losses. See the performance curve to be sure your overall application allows the pump to operate within the safe operation range.

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, rein forced type to prevent collapse under suction. Us ing piping couplings in suction lines is not recom mended.

Line Configuration

Keep suction and discharge lines as straight as possible to minimize friction losses. Make mini mum use of elbows and fittings, which substan tially increase friction loss. If elbows are necessary, use the long‐radius type to minimize friction loss.

Connections to Pump

Before tightening a connecting flange, align it ex actly with the pump port. Never pull a pipe line into

INSTALLATION

10 SERIES OM-00905 place by tightening the flange bolts and/or cou plings.

Lines near the pump must be independently sup ported to avoid strain on the pump which could cause excessive vibration, decreased bearing life, and increased shaft and seal wear. If hose‐type lines are used, they should have adequate support to secure them when filled with liquid and under pressure.

Gauges

Most pumps are drilled and tapped for installing discharge pressure and vacuum suction gauges. If these gauges are desired for pumps that are not 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.

Installation closer to the pump may result in erratic readings.

SUCTION LINES

To avoid air pockets which could affect pump prim ing, the suction line must be as short and direct as possible. When operation involves a suction lift, the line must always slope upward to the pump from the source of the liquid being pumped; if the line slopes down to the pump at any point along the suction run, air pockets will be created.

Fittings

Suction lines should be the same size as the pump inlet. If reducers are used in suction lines, they should be the eccentric type, and should be in stalled with the flat part of the reducers uppermost to avoid creating air pockets. Valves are not nor mally used in suction lines, but if a valve is used, install it with the stem horizontal to avoid air pock ets.

Strainers

If a strainer is furnished with the pump, be certain to use it; any spherical solids which pass through a strainer furnished with the pump will also pass through the pump itself.

INSTALLATION

If a strainer is not furnished with the pump, but is installed by the pump user, make certain that the total area of the openings in the strainer is at least three or four times the cross section of the suction line, and that the openings will not permit passage of solids larger than the solids handling capability of the pump.

This pump is designed to handle up to 2-3/4 inch

(69,9 mm) diameter spherical solids.

Sealing

Since even a slight leak will affect priming, head, and capacity, especially when operating with a high suction lift, all connections in the suction line should be sealed with pipe dope to ensure an air tight seal. Follow the sealant manufacturer's rec ommendations when selecting and applying the pipe dope. The pipe dope should be compatible with the liquid being pumped.

Suction Lines In Sumps

If a single suction line is installed in a sump, it should be positioned away from the wall of the sump at a distance equal to 1‐1/2 times the diame ter of the suction line.

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.

If it is necessary to position inflow close to the suc tion inlet, install a baffle between the inflow and the suction inlet at a distance 1‐1/2 times the diameter of the suction pipe. The baffle will allow entrained air to escape from the liquid before it is drawn into the suction inlet.

If two suction lines are installed in a single sump, the flow paths may interact, reducing the efficiency of one or both pumps. To avoid this, position the suction inlets so that they are separated by a dis tance equal to at least 3 times the diameter of the suction pipe.

Suction Line Positioning

The depth of submergence of the suction line is critical to efficient pump operation.

Figure 2 shows

PAGE B - 3

OM-00905 10 SERIES recommended minimum submergence vs. veloc ity.

NOTE

The pipe submergence required may be reduced by installing a standard pipe increaser fitting at the end of the suction line. The larger opening size will reduce the inlet velocity. Calculate the required submergence using the following formula based on the increased opening size (area or diameter).

Siphoning

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 from excessive shock pressure and reverse rota tion when it is stopped.

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 the application involves a high discharge head, gradually close the discharge throttling valve before stopping the pump.

Bypass Lines

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.

A check valve in the discharge line is normally rec ommended, but it is not necessary in low dis charge head applications.

Self‐priming pumps are not air compressors. Dur ing the priming cycle, air from the suction line must be vented to atmosphere on the discharge side. If the discharge line is open, this air will be vented through the discharge. However, if a check valve has been installed in the discharge line, the dis charge side of the pump must be opened to atmos

PAGE B - 4 INSTALLATION

10 SERIES OM-00905 pheric pressure through a bypass line installed be tween the pump discharge and the check valve. A self‐priming centrifugal pump will not prime if there is sufficient static liquid head to hold the dis charge check valve closed.

If the installation involves a flooded suction such as a below‐ground lift station. A pipe union and manu al shut‐off valve may be installed in the bleed line to allow service of the valve without shutting down the station, and to eliminate the possibility of flooding.

If a manual shut‐off valve is installed anywhere in the air release piping, it must be a full‐opening ball type valve to prevent plugging by solids.

NOTE

The bypass line should be sized so that it does not affect pump discharge capacity; however, the by pass line should be at least 1 inch in diameter to minimize the chance of plugging.

In low discharge head applications (less than 30 feet or 9 meters), it is recommended that the by pass line be run back to the wet well, and located 6 inches below the water level or cut‐off point of the low level pump. In some installations, this bypass line may be terminated with a six‐to‐eight foot length of 1 1/4 inch I.D. smooth‐bore hose; air and liquid vented during the priming process will then agitate the hose and break up any solids, grease, or other substances likely to cause clogging.

A bypass line that is returned to a wet well must be secured against being drawn into the pump suction inlet.

It is also recommended that pipe unions be in stalled at each 90 elbow in a bypass line to ease disassembly and maintenance.

In high discharge head applications (more than

30 feet), an excessive amount of liquid may be by passed and forced back to the wet well under the full working pressure of the pump; this will reduce overall pumping efficiency. Therefore, it is recom mended that a Gorman‐Rupp Automatic Air Re lease Valve be installed in the bypass line.

Gorman‐Rupp Automatic Air Release Valves are reliable, and require minimum maintenance. See

AUTOMATIC AIR RELEASE VALVE in this section for installation and theory of operation of the Auto matic Air Release Valve. Consult your Gorman‐

Rupp distributor, or contact the Gorman‐Rupp

Company for selection of an Automatic Air Release

Valve to fit your application.

INSTALLATION

If a manual shut‐off valve is installed in a bypass line, it must not be left closed during operation. A closed manual shut‐ off valve may cause a pump which has lost prime to continue to operate with out reaching prime, causing dangerous overheating and possible explosive rupture of the pump casing. Personnel could be severely injured .

Allow an over‐heated pump to cool be fore servicing . Do not remove plates, covers, gauges, or fittings from an over‐ heated pump. Liquid within the pump can reach boiling temperatures, and va por pressure within the pump can cause parts being disengaged to be ejected with great force. After the pump cools, drain the liquid from the pump by re moving the casing drain plug. Use cau tion when removing the plug to prevent injury to personnel from hot liquid.

AUTOMATIC AIR RELEASE VALVE

When properly installed, a Gorman‐Rupp Auto matic Air Release Valve will permit air to escape through the bypass line and then close automati cally when the pump is fully primed and pumping at full capacity.

Some leakage (1 to 5 gallons [3.8 to 19 liters] per minute) will occur when the valve is fully closed. Be sure the bypass

PAGE B - 5

OM-00905 10 SERIES line is directed back to the wet well or tank to prevent hazardous spills.

Consult the manual accompanying the Air Release

Valve for additional information on valve installation and performance.

ALIGNMENT

The alignment of the pump and its power source is critical for trouble‐free mechanical operation. In either a flexible coupling or V‐belt driven system, the driver and pump must be mounted so that their shafts are aligned with and parallel to each other. It is imperative that alignment be checked after the pump and piping are installed, and before opera tion.

Coupled Drives

When using couplings, the axis of the power source must be aligned to the axis of the pump shaft in both the horizontal and vertical planes.

Most couplings require a specific gap or clearance between the driving and the driven shafts. Refer to the coupling manufacturer's service literature.

Align spider insert type couplings by using calipers to measure the dimensions on the circumference of the outer ends of the coupling hub every 90 .

The coupling is in alignment when the hub ends are the same distance apart at all points (see Fig ure 3).

NOTE

Check Rotation , Section C, before final alignment 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.

Before checking alignment, tighten the foundation bolts. The pump casing feet and/or pedestal feet, and the driver mounting bolts should also be tightly secured.

Figure 3. Aligning Spider‐Type Couplings

Align non‐spider type couplings by using a feeler gauge or taper gauge between the coupling halves every 90 . The coupling is in alignment when the hubs are the same distance apart at all points (see

Figure 4).

When checking alignment, disconnect the power source to ensure that the pump will remain inoperative.

Adjusting the alignment in one direction may alter the alignment in another direc tion. check each procedure after altering alignment.

PAGE B - 6

Figure 4. Aligning Non‐Spider Type Couplings

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. If the coupling is misaligned, use a feeler gauge between the coupling and the straightedge to measure the amount of misalign ment.

INSTALLATION

10 SERIES OM-00905

V‐Belt Drives

When using V‐belt drives, the power source and the pump must be parallel. Use a straightedge along the sides of the pulleys to ensure that the pul leys are properly aligned (see Figure 5). In drive systems using two or more belts, make certain that the belts are a matched set; unmatched sets will cause accelerated belt wear.

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. Over‐tensioning will short en both V‐belt and bearing life. Under‐tensioning will cause belt slippage. Always keep belts free from dirt, grease, oil and other foreign material which may cause slippage.

Tension Measurement

Correct V‐belt tension can be achieved using a V‐ belt tension tester and Table 1 or 2. Use the tables to find the V‐belt size (cross‐section), the smallest sheave diameter, the belt type for your application.

The corresponding deflection force required for new or used belts is shown opposite the RPM range of the pump.

Belt Span

MISALIGNED:

SHAFTS

NOT PARALLEL

MISALIGNED:

SHAFTS

NOT IN LINE

ALIGNED: SHAFTS

PARALLEL AND

SHEAVES IN LINE

Figure 5. Alignment of V‐Belt Driven Pumps

Tighten the belts in accordance with the belt manu facturer's instructions. If the belts are too loose, they will slip; if the belts are too tight, there will be excessive power loss and possible bearing failure.

Select pulleys that will match the proper speed ra tio; overspeeding the pump may damage both pump and power source.

Deflection

Do not operate the pump without the guard in place over the rotating parts .

exposed rotating parts can catch cloth ing, fingers, or tools, causing severe in jury to personnel.

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.

INSTALLATION

Figure 6. Belt Tension Measurement

The ratio of deflection to belt span is 1:64 for both

ASA and metric units. Therefore, a belt with a span of 64 inches would require a deflection of 1 inch at the force shown on the Tables for your particular application.

For example, if the span as measured in Figure 8 is

32 inches (813 mm), the v‐belt cross‐section is C, the smallest sheave diameter is 8 inches, the pump speed is 1250 RPM, and the belts are uncogged

Hy‐T type, then 11.5 lbs. of force on the tensioner should show 1/2‐inch (12,7 mm) of deflection.

A tension tester is available as an option from Gor man‐Rupp (P/N 29513-001). Other tension test ers are available from your local belt/sheave dis tributor, and work on a similar principal.

To use the Gorman‐Rupp tensioner, measure the belt span as shown in Figure 6. Position the bottom

PAGE B - 7

OM-00905 10 SERIES of the large O‐ring on the span scale of the tension er at the measured belt span. Set the small O‐ring on the deflection force scale to zero.

Place the tension tester squarely on the belt at the center of the belt span. Apply force on the plunger, perpendicular to the belt span, until the bottom of the large O‐ring is even with the top of the next belt, or with the bottom of a straight edge laid across the sheaves.

Read the force applied from the bottom of the small

O‐ring on the deflection force scale. Compare this force with the value shown in Table 1 or 2 and ad just the tension accordingly. Note that the for new belts is higher than that for allow for expected belt stretching. shown for new belts.

Do not tension used belts to

over‐ten sion used belts to the higher deflection forces

Table 1. Belt Deflection

Sheave Dia. (Inches) Deflection Force (Lbs.) Sheave Dia. (MM) Deflection Force (Kg.)

Cross

Section

Smallest

Sheave

Diameter

Range

A,AX

B,BX

C,CX

D

3V,

3VX

5V,

5VX

8V

R.P.M.

Range

3.0 ‐ 3.6

3.8 ‐ 4.8

1000‐2500

2501‐4000

1000‐2500

2501‐4000

5.0 ‐ 7.0

3.4 ‐ 4.2

4.4 ‐ 5.6

1000‐2500

2501‐4000

860‐2500

2501‐4000

860‐2500

2501‐4000

5.8 ‐ 8.6

7.0 ‐ 9.0

860‐2500

2501‐4000

500‐1740

1741‐3000

9.5 ‐ 16.0

12.0 ‐ 16.0

500‐1740

1741‐3000

200‐850

851‐1500

18.0 ‐ 20.0

2.2 ‐ 2.4

200‐850

851‐1500

1000‐2500

2501‐4000

2.65 ‐ 3.65 1000‐2500

2501‐4000

4.12 ‐ 6.90

4.4 ‐ 6.7

1000‐2500

2501‐4000

500‐1749

1750‐3000

3001‐4000

7.1 ‐ 10.9

500‐1740

1741‐3000

11.8 ‐ 16.0

500‐1740

1741‐3000

12.5 ‐ 17.0

200‐850

851‐1500

18.0 ‐ 22.4

200‐850

851‐1500

12.7

11.2

15.5

14.6

33.0

26.8

39.6

35.3

3.6

3.0

4.9

4.4

14.1

12.5

11.5

9.4

30.4

25.6

5.3

4.5

6.3

6.0

11.5

9.4

3.7

2.8

4.5

3.8

5.4

4.7

Belt Deflection Force

Uncogged

Hy‐T Belts &

Uncogged

Hy‐T Torque

Team

Cogged

Torque‐Flex

& Machined

Edge torque

Team Belts

Used

Belt

New

Belt

Used

Belt

New

Belt

5.5

4.2

6.8

5.7

8.0

7.0

7.9

6.7

9.4

8.9

17.0

13.8

21.0

18.5

17.0

13.8

45.2

38.0

5.1

4.4

7.3

6.6

18.9

16.7

23.4

21.8

49.3

39.9

59.2

52.7

4.1

3.4

5.0

4.3

5.7

5.1

4.9

4.2

7.1

7.1

8.5

7.3

14.7

11.9

15.9

14.6

14.7

11.9

3.3

2.9

4.2

3.8

5.3

4.9

10.2

8.8

5.6

14.8

13.7

17.1

16.8

4.9

4.3

6.2

5.6

7.9

7.3

15.2

13.2

8.5

22.1

20.1

25.5

25.0

7.2

6.2

10.5

9.1

12.6

10.9

21.8

17.5

23.5

21.6

21.8

17.5

6.1

5.0

7.4

6.4

9.4

7.4

Cross

Section

Smallest

Sheave

Diameter

Range

A,AX

R.P.M.

Range

75 ‐ 90

91 ‐ 120

1000‐2500

2501‐4000

1000‐2500

2501‐4000

B,BX

C,CX

D

3V,

3VX

5V,

5VX

8V

125 ‐ 175

85 ‐ 105

106 ‐ 140

1000‐2500

2501‐4000

860‐2500

2501‐4000

860‐2500

2501‐4000

141 ‐ 220

175 ‐ 230

860‐2500

2501‐4000

500‐1740

1741‐3000

231 ‐ 400

305 ‐ 400

500‐1740

1741‐3000

200‐850

851‐1500

401 ‐ 510

55 ‐ 60

200‐850

851‐1500

1000‐2500

2501‐4000

61 ‐ 90 1000‐2500

91 ‐ 175

110 ‐ 170

2501‐4000

1000‐2500

2501‐4000

500‐1749

1750‐3000

3001‐4000

171 ‐ 1275 500‐1740

1741‐3000

276 ‐ 400 500‐1740

1741‐3000

315 ‐ 430

200‐850

851‐1500

431 ‐ 570

200‐850

851‐1500

1.7

1.3

2.0

1.7

2.4

2.1

2.4

2.0

2.9

2.7

5.2

4.3

6.4

5.7

11.3

9.6

13.8

11.6

1.6

1.4

2.2

2.0

5.8

5.1

7.0

6.6

15.0

12.2

18.0

16.0

Belt Deflection Forc e

Uncogged

Hy‐T Belts &

Uncogged

Hy‐T Torque

Team

Cogged

Torque‐Flex

& Machined

Edge torque

Team Belts

Used

Belt

New

Belt

Used

Belt

New

B elt

2.5

1.9

3.1

2.6

3.6

3.2

3.6

3.0

4.3

4.0

7.7

6.3

9.5

8.4

16.8

14.2

20.5

17.2

2.3

2.0

3.3

3.0

8.6

7.6

10.6

9.9

22.4

18.1

26.8

23.9

1.9

1.5

2.3

2.0

2.6

2.3

2.4

2.2

4.6

4.0

2.5

6.7

6.2

7.8

7.6

1.5

1.3

1.9

1.7

2.2

1.9

3.2

3.2

3.9

3.3

6.7

5.4

7.2

6.6

5.7

4.9

9.9

7.9

3.3

2.8

4.8

4.1

10.7

9.8

2.8

2.3

3.4

2.9

4.3

3.4

3.6

3.3

6.9

6.0

3.9

10.0

9.1

2.2

2.0

2.8

2.5

11.6

11.3

PAGE B - 8 INSTALLATION

10 SERIES OM-00905

OPERATION - SECTION C


Follow the instructions on all tags, labels and de cals attached to the pump.

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.

This pump is designed to handle most non‐volatile, non‐flammable liquids containing specified entrained solids.

Do not attempt to pump volatile, corro sive, or flammable liquids which may damage the pump or endanger person nel as a result of pump failure.

Pump speed and operating conditions must be within the performance range shown on page E‐1.

PRIMING

Install the pump and piping as described in IN

STALLATION . Make sure that the piping connec tions are tight, and that the pump is securely mounted. Check that the pump is properly lubri cated (see LUBRICATION in MAINTENANCE

AND REPAIR ).

This pump is self‐priming, but the pump should never be operated unless there is liquid in the pump casing.

Never operate this pump unless there is liquid in the pump casing. The pump will not prime when dry. extended operation of a dry pump will destroy the seal assembly.

Add liquid to the pump casing when:

1. The pump is being put into service for the first time.

OPERATION

After filling the pump casing, reinstall and tighten the fill plug. Do not attempt to operate the pump unless all connect ing piping is securely installed. Other wise, liquid in the pump forced out under pressure could cause injury to personnel.

To fill the pump, remove the pump casing fill cover or fill plug in the top of the casing, and add clean liquid until the casing is filled. Replace the fill cover or fill plug before operating the pump.

STARTING

Consult the operations manual furnished with the power source.

Rotation

The correct direction of pump rotation is counter clockwise when facing the impeller. The pump could be damaged and performance adversely af fected by incorrect rotation. If pump performance is not within the specified limits (see the curve on page E‐1), check the direction of power source ro tation before further troubleshooting.

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.

If rotation is incorrect on a three‐phase motor, have a qualified electrician interchange any two of the three phase wires to change direction. If rotation is

PAGE C - 1

OM-00905 10 SERIES incorrect on a single‐phase motor, consult the liter ature supplied with the motor for specific instruc tions.

OPERATION

Lines With a Bypass

If a Gorman‐Rupp Automatic Air Release Valve has been installed, the valve will automatically open to allow the pump to prime, and automatically close after priming is complete (see INSTALLATION for

Air Release Valve operation).

If the bypass line is open, air from the suction line will be discharged through the bypass line back to the wet well during the priming cycle. Liquid will then continue to circulate through the bypass line while the pump is in operation.

Lines Without a Bypass

Open all valves in the discharge line and start the power source. Priming is indicated by a positive reading on the discharge pressure gauge or by a quieter operation. The pump may not prime imme diately because the suction line must first fill with liquid. If the pump fails to prime within five minutes, stop it and check the suction line for leaks.

After the pump has been primed, partially close the discharge line throttling valve in order to fill the line slowly and guard against excessive shock pres sure which could damage pipe ends, gaskets, sprinkler heads, and any other fixtures connected to the line. When the discharge line is completely filled, adjust the throttling valve to the required flow rate.

Do not operate the pump against a closed discharge throttling valve for long periods of time. If operated against a closed discharge throttling valve, pump components will deteriorate, and the liquid could come to a boil, build pressure, and cause the pump casing to rupture or explode.

PAGE C - 2

Leakage

No leakage should be visible at pump mating sur faces, or at pump connections or fittings. Keep all line connections and fittings tight to maintain maxi mum pump efficiency.

Liquid Temperature And Overheating

The maximum liquid temperature for this pump is

160 F (71 C). Do not apply it at a higher operat ing temperature.

Overheating can occur if operated with the valves in the suction or discharge lines closed. Operating against closed valves could bring the liquid to a boil, build pressure, and cause the pump to rup ture or explode. If overheating occurs, stop the pump and allow it to cool before servicing it. Refill the pump casing with cool liquid.

Allow an over‐heated pump to cool be fore servicing. Do not remove plates, covers, gauges, or fittings from an over‐ heated pump. Liquid within the pump can reach boiling temperatures, and va por pressure within the pump can cause parts being disengaged to be ejected with great force. After the pump cools, drain the liquid from the pump by re moving the casing drain plug. Use cau tion when removing the plug to prevent injury to personnel from hot liquid.

As a safeguard against rupture or explosion due to heat, this pump is equipped with a pressure relief valve which will open if vapor pressure within the pump casing reaches a critical point. If overheating does occur, stop the pump immediately and allow it to cool before servicing it.

Approach any over heated pump cautiously . It is recommended that the pressure relief valve assembly be replaced at each overhaul, or any time the pump casing over heats and activates the valve. Never replace this valve with a substitute which has not been speci fied or provided by the Gorman‐Rupp Company.

OPERATION

10 SERIES

Strainer Check

If a suction strainer has been shipped with the pump or installed by the user, check the strainer regularly, and clean it as necessary. The strainer should also be checked if pump flow rate begins to drop. If a vacuum suction gauge has been in stalled, monitor and record the readings regularly to detect strainer blockage.

Never introduce air or steam pressure into the pump casing or piping to remove a blockage. This could result in personal injury or damage to the equipment. If backflushing is absolutely neces sary, liquid pressure must be limited to 50% of the maximum permissible operating pressure shown on the pump performance curve.

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.

Open the suction line, and read the vacuum gauge with the pump primed and at operation speed.

Shut off the pump. The vacuum gauge reading will immediately drop proportionate to static suction lift, and should then stabilize. If the vacuum reading falls off rapidly after stabilization, an air leak exists.

Before checking for the source of the leak, check the point of installation of the vacuum gauge.

STOPPING

Never halt the flow of liquid suddenly. If the liquid being pumped is stopped abruptly, damaging shock waves can be transmitted to the pump and piping system. Close all connecting valves slowly.

On engine driven pumps, reduce the throttle speed slowly and allow the engine to idle briefly be fore stopping.

If the application involves a high discharge

OPERATION

OM-00905 head, gradually close the discharge throttling valve before stopping the pump.

After stopping the pump, disconnect the power source to ensure that the pump will remain inop erative.

Cold Weather Preservation

In below freezing conditions, drain the pump to prevent damage from freezing. Also, clean out any solids by flushing with a hose. Operate the pump for approximately one minute; this will remove any remaining liquid that could freeze the pump rotat ing parts. If the pump will be idle for more than a few hours, or if it has been pumping liquids con taining a large amount of solids, drain the pump, and flush it thoroughly with clean water. To prevent large solids from clogging the drain port and pre venting the pump from completely draining, insert a rod or stiff wire in the drain port, and agitate the liquid during the draining process. Clean out any remaining solids by flushing with a hose.

BEARING TEMPERATURE CHECK

Bearings normally run at higher than ambient tem peratures because of heat generated by friction.

Temperatures up to 160 F (71 C) are considered normal for bearings, and they can operate safely to at least 180 F (82 C).

Checking bearing temperatures by hand is inaccu rate. Bearing temperatures can be measured ac curately by placing a contact‐type thermometer against the housing. Record this temperature for future reference.

A sudden increase in bearing temperature is a warning that the bearings are at the point of failing to operate properly. Make certain that the bearing lubricant is of the proper viscosity and at the cor rect level (see LUBRICATION in MAINTENANCE

AND REPAIR ). Bearing overheating can also be caused by shaft misalignment and/or excessive vi bration.

When pumps are first started, the bearings may seem to run at temperatures above normal. Con tinued operation should bring the temperatures down to normal levels.

PAGE C - 3

10 SERIES

TROUBLESHOOTING - SECTION D


OM-00905



2. Lock out or disconnect the power source to ensure that the pump will remain inoperative.






TROUBLE

PUMP FAILS TO

PRIME

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE

POSSIBLE CAUSE PROBABLE REMEDY

Not enough liquid in casing.

Suction check valve contaminated or damaged.

Air leak in suction line.

Lining of suction hose collapsed.

Add liquid to casing. See

Correct leak.

Replace suction hose.

PRIMING

Clean or replace check valve.

Leaking or worn seal or pump gasket.

Check pump vacuum. Replace leaking or worn seal or gasket.

Suction lift or discharge head too high.

Check piping installation and in stall bypass line if needed. See

INSTALLATION .

Strainer clogged.

Check strainer and clean if neces sary.

.

Air leak in suction line.

Lining of suction hose collapsed.

Correct leak.

Replace suction hose.

Leaking or worn seal or pump gasket.

Check pump vacuum. Replace leaking or worn seal or gasket.

TROUBLESHOOTING PAGE D - 1

OM-00905 10 SERIES

TROUBLE

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE (cont.)

POSSIBLE CAUSE

Strainer clogged.

Suction intake not submerged at proper level or sump too small.

Impeller or other wearing parts worn or damaged.

Impeller clogged.

Pump speed too slow.

Discharge head too high.

Suction lift too high.

PUMP REQUIRES

TOO MUCH

POWER

Pump speed too high.

PUMP CLOGS

FREQUENTLY

EXCESSIVE NOISE

Discharge head too low.

Liquid solution too thick.

Bearing(s) frozen.

Liquid solution too thick.

Discharge flow too slow.

Suction check valve or foot valve clogged or binding.

Cavitation in pump.

Pumping entrained air.

Pump or drive not securely mounted.

Impeller clogged or damaged.

PROBABLE REMEDY

Check strainer and clean if neces sary.

Check installation and correct sub mergence as needed.

Replace worn or damaged parts.

Check that impeller is properly centered and rotates freely.

Free impeller of debris.

Check driver output; check belts or couplings for slippage.

Install bypass line.

Measure lift w/vacuum gauge. Re duce lift and/or friction losses in suction line.

Check driver output; check that sheaves or couplings are cor rectly sized.

Adjust discharge valve.

Dilute if possible.

Disassemble pump and check bearing(s).

Dilute if possible.

Open discharge valve fully to in crease flow rate, and run power source at maximum governed speed.

Clean valve.

Reduce suction lift and/or friction losses in suction line. Record vac uum and pressure gauge readings and consult local representative or factory.

Locate and eliminate source of air bubble.

Secure mounting hardware.

Clean out debris; replace dam aged parts.

PAGE D - 2 TROUBLESHOOTING

10 SERIES OM-00905

TROUBLE

BEARINGS

RUN TOO HOT

POSSIBLE CAUSE

Bearing temperature is high, but within limits.

Low or incorrect lubricant.

Suction and discharge lines not properly supported.

Drive misaligned.

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. For specific questions con cerning your application, contact your Gorman‐

Rupp distributor or the Gorman‐Rupp Company.

Record keeping is an essential component of a good preventive maintenance program. Changes in suction and discharge gauge readings (if so

PROBABLE REMEDY

Check bearing temperature regu larly to monitor any increase.

Check for proper type and level of lubricant.

Check piping installation for proper support.

Align drive properly.

equipped) between regularly scheduled inspec tions can indicate problems that can be corrected before system damage or catastrophic failure oc curs. The appearance of wearing parts should also be documented at each inspection for comparison as well. Also, if records indicate that a certain part

(such as the seal) fails at approximately the same duty cycle, the part can be checked and replaced before failure occurs, reducing unscheduled down time.

For new applications, a first inspection of wearing parts at 250 hours will give insight into the wear rate for your particular application. Subsequent inspec tions should be performed at the intervals shown on the chart below. Critical applications should be inspected more frequently.

TROUBLESHOOTING PAGE D - 3

OM-00905 10 SERIES

Item

Preventive Maintenance Schedule

Daily

Service Interval*

Weekly Monthly Semi‐

Annually

Annually

General Condition (Temperature, Unusual

Noises or Vibrations, Cracks, Leaks,

Loose Hardware, Etc.)

Pump Performance (Gauges, Speed, Flow)

Bearing Lubrication

Seal Lubrication (And Packing Adjustment,

If So Equipped)

V‐Belts (If So Equipped)

Air Release Valve Plunger Rod (If So Equipped)

Front Impeller Clearance (Wear Plate)

Rear Impeller Clearance (Seal Plate)

Check Valve

Pressure Relief Valve (If So Equipped)

Pump and Driver Alignment

Shaft Deflection

Bearings

Bearing Housing

Piping

Driver Lubrication - See Mfgr's Literature

I

I

I

I

I

I

C

I

I

R

R

I

I

I

C

I

I

I

Legend:

I = Inspect, Clean, Adjust, Repair or Replace as Necessary

C = Clean

R = Replace

* Service interval based on an intermittent duty cycle equal to approximately 4000 hours annually.

Adjust schedule as required for lower or higher duty cycles or extreme operating conditions.

PAGE D - 4 TROUBLESHOOTING

10 SERIES OM-00905

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 112E60‐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 ference due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.

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 per formance or part numbers.

Pump speed and operating condition points must be within the continuous per formance range shown on the curve.

MAINTENANCE & REPAIR PAGE E - 1

OM-00905

PARTS PAGE

SECTION DRAWING

10 SERIES

PAGE E - 2

Figure 1. Pump Model 112E60‐B

MAINTENANCE & REPAIR

10 SERIES OM-00905

PARTS LIST

Pump Model 112E60‐B

(From S/N 1408480 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

NO.

PART NAME PART

NUMBER

MAT'L

CODE

QTY

1 PUMP CASING

2 IMPELLER

3 SEAL ASSY

4 VICTAULIC COUPLING

5 CVR PLATE GSKT

6 COVER PLATE ASSY

7 CLAMP

8 MACHINE BOLT

9 SCREW ASSY

10 TAP BOLT

11 JAM NUT

12 HEX HD CAPSCREW

13 LOCKWASHER

14 PIPE PLUG

15 HEX HD CAPSCREW

16 HEX NUT

17 LOCK WASHER

18 REDUCER 10 X 12

19 PIPE PLUG

SEE NOTE BELOW

38617-717 1102H

46512-259 ---

25552-214 ---

38688-015 20000

48271-026 ---

12872 11000

A1012

2536

15991

24000

21612-199 ---

AT08

B1209

J12

15991

15991

15991

P08

B1416

D14

J14

15079 1

15991 12

15991 12

15991 12

38642-620 10000

P16 10009

1

1

4

2

4

4

8

8

1

1

2

1

1

1

1

20 DISCH FLANGE GSKT

21 PIPE PLUG

2751G

P08

18000

15079

22 SEAL PLATE O‐RING

23 OIL SEAL

24 HEX HD CAPSCREW

25 LOCKWASHER

26 AIR VENT

27 AIR VENT

28 HEX HD CAPSCREW

29 LOCKWASHER

30 IMPELLER SHIM SET

25152-283

S1703

B0808

J08

---

25258-851 ---

B0610 15991

J06

S1703

15991

---

---

15991

15991

1

1

6

6

2

1

1

2

48261-033 --REF

31 SHAFT SLEEVE 31513-051 17200

32 PIPE PLUG P06

33 SEAL CVTY DRAIN PLUG P06

15079

15079

34 BARBED ELBOW

35 MALE CONNECTOR

36 .38 X 7” LG HOSE

37 HOSE CLAMP

26523-506

26523-409

31411-227

26518-642

---

---

19360

---

38 FLAT WASHER

39 BRACKET ASSY

40 BOTTLE OILER

41 OIL LEVEL DECAL

K12 15991

41881-617 24150

26713-004 ---

38816-123 ---

1

2

1

1

1

1

1

1

1

2

1

1

1

42 OIL SEAL

43 SHAFT KEY

25258-851 ---

N1020 15990

44 IMPELLER SHAFT 38512-519 16040

45 OUTBRD BALL BEARING 23421-417 ---

46 WAVE WASHER

47 BEARING COVER

48 BRG COVER O‐RING

49 SIGHT GAUGE

50 PIPE PLUG

51 PEDESTAL

23963-333

38322-419

S1874

26714-011

P06

38257-511

---

10010

---

---

15079

10010

52 INBOARD BALL BEARING 23275-017 ---

1

1

1

1

1

1

1

1

3

1

1

INDICATES PARTS RECOMMENDED FOR STOCK

ITEM

NO.

PART NAME PART

NUMBER

MAT'L

CODE

QTY

53 SEAL PLATE O‐RING

54 HEX HD CAP SCREW

55 LOCKWASHER

56 SEAL PLATE

57 CASING DRAIN PLUG

58 WEAR PLATE O‐RING

59 PEDESTAL FOOT

60 STUD

61 LOCKWASHER

62 HEX NUT

63 STUD

64 LOCKWASHER

65 HEX NUT

25152-256

B1210

P24

D12

C0814

J08

D08

---

15991

10009

25152-283 ---

38151-002 10010

C1216 15991

J12 15991

15991

15991

15991

15991

66 WEAR PLATE O‐RING 25152-278 ---

67 WEAR PLATE 38691-851 1102H

68 HEX HD CAPSCREW B1210 15991

69 SUCT ELBOW SUPPORT 41881-258 24150

70 SUCTION ELBOW 38647-910 10010

71 HEX HD CAPSCREW

72 LOCKWASHER

B1206

J12

15991

15991

73 COVER PLT GSKT

74 COVER PLATE ASSY

75 MACHINE BOLT

76 CLAMP BAR SCREW

77 CLAMP BAR

38682-016 20000

48271-025 ---

A1011 15991

31912-009 15000

38111-310 11010

1

12

J12 15991 12

38272-710 1102H 1

1

1

1

4

4

4

4

4

4

1

1

2

1

1

2

2

4

2

1

1

2

78 SOC HD CAPSCREW

79 IMPELLER WASHER

80 ROLL PIN

81 IMPELLER KEY

BD1206

S2197

N0812

15990

31167-012 15030

---

15990

82 PRESSURE RELIEF VLV 26662-005 ---

83 PIPE PLUG P08 15079

84 CHECK VALVE ASSY

85 -HEX HD CAPSCREW

86 -PIPE PLUG

46421-035

B0606

P08

---

15991

15079

87 -FLAT WASHER

88 -PIVOT CAP

KB08 17000

38141-003 11060

89 -CHECK VALVE BODY 38341-806 10010

90 -T TYPE LOCKWASHER AK06 15991

46411-068 24010 91 -CHECK VALVE

NOT SHOWN:

INSTRUCTION LABEL

NAME PLATE

ROTATION DECAL

STRAINER

DRIVE SCREW

LUBE DECAL

WARNING DECAL

WARNING DECAL

G‐R DECAL

SUCTION STICKER

DISCHARGE STICKER

INSTRUCTION TAG

INSTRUCTION TAG

2613DK

2613D

2613M

---

13990

---

46641-012 24150

BM#04-03 17000

38816-079 ---

38816-302 ---

2613FE ---

GR-06

6588AG

6588BJ

---

---

---

38817-011 ---

38817-024 ---

1

1

1

1

1

1

1

1

1

1

1

1

4

1

1

1

1

1

2

2

1

1

1

2

2

2

1

INCLUDED WITH

REPAIR PUMP CASING ASSY

46471-534 ---


1

PAGE E - 3

OM-00905 10 SERIES

PUMP AND SEAL DISASSEMBLY

AND REASSEMBLY


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 E-1) and the ac companying parts list.

This manual will alert personnel to known proce dures which require special attention, to those which could damage equipment, and to those which could be dangerous to personnel. However, this manual cannot possibly anticipate and provide detailed precautions for every situation that might occur during maintenance of the unit. Therefore, it is the responsibility of the owner/maintenance per sonnel to ensure that only safe, established main tenance procedures are used, and that any proce dures not addressed in this manual are performed only after establishing that neither personal safety nor pump integrity are compromised by such prac tices.

Before attempting to service the pump, disconnect or lock out the power source to ensure that the pump will remain inoperative. Close all valves in the suction and discharge lines.

For power source disassembly and repair, consult the literature supplied with the power source, or contact your local power source representative.



2. Disconnect or lock out the power source to ensure that the pump will remain inoperative.


PAGE E - 4





Death or serious personal injury and damage to the pump or components can occur if proper lifting procedures are not observed. Make certain that hoists, chains, slings or cables are in good working condition and of suffi cient capacity and that they are posi tioned so that loads will be balanced and the pump or components will not be damaged when lifting. Suction and dis charge hoses and piping must be re moved from the pump before lifting. Lift the pump or component only as high as necessary and keep personnel away from suspended objects.

Suction Check Valve Removal and Disassembly

Before attempting to service the pump, remove the pump casing drain plug (57) and drain the pump.

Clean and reinstall the drain plug.

To service the suction check valve assembly (84), loosen the cover clamp screws (9) and remove the cover clamps (7) securing the cover plate assem bly (6) to the suction elbow (70). Remove the cover plate gasket (5) and replace as required.

Reach through the access opening and remove the hardware (85 and 90) and pivot caps (88) se curing the check valve (91) to the check valve body

(89). Remove the check valve through the access opening.

Inspect the check valve for wear or damage. If re placement is required, remove the flat washers

(87) from the pivot arm. Tie and tag the washers for future reference.

If the check valve body (89) needs replaced, re move the hardware securing the suction piping.


10 SERIES OM-00905

Remove the “Victaulic” coupling (4) and separate the valve body from the suction elbow. Inspect the rubber “Victaulic” gasket for damage and replace as required.

If no further disassembly is required, see Suction

Check Valve Installation .

Wear Plate And Suction Elbow Removal

Service to the wear plate (67), impeller (2) or seal assembly (3) can be accomplished from either side of the pump casing (1). The following instruc tions are based on service from the suction side of the pump.

Install a 3/4-10 UNC-2B lifting eye (not supplied) in the tapped hole located in the suction elbow. Be sure the eye bolt is fully engaged before attaching a hoist. Support the suction elbow using a suitable hoist and sling. The hoist is used to support the suction elbow only, do not try to lift the pump. Re move the hardware securing the elbow support

(69) and pedestal foot (59) to the base.

Do not attempt to lift the complete pump using the lifting eye. It is designed to fa cilitate removal or installation of individ ual components only. Additional weight could cause damage to the pump or fail ure of the eye bolt, resulting in possible serious personnel injury.

Remove the hardware (12, 13, 61 and 62) securing the suction elbow to the pump casing (1). Use the jacking screws (68) to force the suction head out of the pump casing. Tie and tag any leveling shims used under the supports (59 and 69) to ease reas sembly.

Inspect the wear plate and O‐ring (58) for damage or wear. If the wear plate must be replaced, remove the hardware (64 and 65) from the wear plate studs

(63). Loosen the jam nuts (11) and use the adjust ing screws (10) to press the wear plate from the suction elbow. If replacement is required, remove the O‐rings (58 and 66) from the wear plate.


Impeller Removal

Before attempting to remove the impeller, immobi lize the impeller by wedging a block of wood be tween the vanes and the pump casing. Remove the impeller capscrew, washer and roll pin (78, 79 and 80). Remove the wood block and install two

3/8-16 UNC-2B capscrews (not supplied) in the tapped holes in the impeller hub. Use a suitable puller to remove the impeller from the shaft (44).

Retain the impeller key (81).

Remove the impeller adjusting shims (30). For ease of reassembly, tie and tag the shims or mea sure and record thickness.

Seal Removal and Disassembly

NOTE

There is an air filled cavity with an open drain hole toward the bottom of the pedestal directly behind the seal plate (56). If oil escapes from the drain hole, the seal plate O‐ring (53) has failed and re moval of the seal plate is required. The drain hole is tapped, but do not install a pipe plug in the drain hole.

(Figures E-1 and E-3)

Before removing the seal, disconnect the hose (36) from the connector (35) and plug the tube to stop the flow of oil from the bottle oiler (40). Remove the connector (35) and allow the seal cavity to drain.

NOTE

The oil will not drain below the hole for the connec tor. To drain the remaining oil from the seal cavity, remove one of the pipe plugs (33) and drain the re maining oil into a pan.

Remove the seal spring. Slide the shaft sleeve (31) and rotating portion of the seal off the shaft as a unit. Remove the shaft sleeve O‐ring. Apply oil to the sleeve and work it up under the bellows. Slide the rotating portion of the seal off the shaft sleeve.

Use a pair of stiff wires with hooked ends to remove the stationary element, seat and O‐rings from the seal plate.

Clean the seal cavity and shaft with a soft cloth soaked in cleaning solvent.

PAGE E - 5

OM-00905 10 SERIES

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.

If no further disassembly is required, see Seal

Reassembly and Installation .

Pump Disassembly

Remove the discharge piping. If disassembly is re quired, remove the hardware (15, 16 and 17) se curing the reducer (18) and flange gasket (20) to the pump casing (1).

Remove the hardware (38, 54 and 55) securing the bottle oiler bracket (39) to the pedestal (51). Use a suitable hoist and sling to support the pump cas ing, and remove the remaining hardware (54 and

55). Separate the casing from the pedestal assem bly.

Remove the seal plate O‐ring (22).

Separate the seal plate (56) from the pedestal by removing the hardware (24 and 25). Remove the seal plate O‐ring (53).

Shaft and Bearing Removal and Disassembly

To separate the pedestal (51) from the power source, install a lifting eye (not supplied) in the

3/8-18 NPT tapped hole in the pedestal. Be sure the eye is fully engaged before attaching a hoist.

Remove the mounting hardware and separate the pedestal from the power source. Tie and tag any shims used under the mounting foot. Remove the shaft key (43).

dividual components only. Additional weight may result in damage to the pump or failure of the eye bolt.

Before opening the pedestal, drain the lubricant from the pedestal by removing the drain plug (50).

Clean and reinstall the plug.

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.

Shaft and bearing disassembly in the field is not recommended. These operations should be performed only in a properly‐ equipped shop by qualified personnel.

Remove the hardware (28 and 29) securing the bearing cover (47) to the pedestal. Remove the wave washer (46) and O‐ring (48). Inspect the oil seal (42) and, if replacement is required, press it from the bearing cover.

Place a block of wood against the impeller end of the shaft (44) and tap the shaft and assembled bearings (45 and 52) from the pedestal bore.

Be careful not to damage the shaft.

Inspect the oil seal (23) and, if replacement is re quired, press it from the pedestal.

After removing the shaft and bearings, clean and inspect the bearings in place as follows.

Do not attempt to lift the complete pump unit using the lifting eye. It is designed to facilitate removal or installation of in

PAGE E - 6

To prevent damage during removal from the shaft, it is recommended that bearings be cleaned and inspected in place . It is strongly recommended that the bearings be replaced any time the shaft and bear ings are removed.

Clean the pedestal, shaft and all component parts

(except the bearings) with a soft cloth soaked in cleaning solvent. Inspect the parts for wear or dam age and replace as necessary.


10 SERIES OM-00905


Clean the bearings thoroughly in fresh cleaning solvent. Dry the bearings with filtered compressed air and coat with light oil.

be replaced any time the shaft and bear ings are removed.

Be sure the oil return groove on the inside bottom of the bearing cover is clean and free of dirt.

Inspect the shaft for distortion, nicks or scratches

,

or for thread damage on the impeller end. Dress small nicks and burrs with a fine file or emery cloth.

Replace the shaft if defective.

The bearings may be heated to ease installation.

An induction heater, hot oil bath, electric oven, or hot plate may be used to heat the bearings. Bear ings should never be heated with a direct flame or directly on a hot plate.

Bearings must be kept free of all dirt and foreign material. Failure to do so will great ly shorten bearing life. Do not spin dry bearings. This may scratch the balls or races and cause premature bearing fail ure.

Rotate the bearings by hand to check for rough ness or binding and inspect the bearing balls. If ro tation is rough or the bearing balls are discolored, replace the bearings.

The bearing tolerances provide a tight press fit onto the shaft and a snug slip fit into the pedestal.

Replace the bearings, shaft, or pedestal if the proper bearing fit is not achieved.

If bearing replacement is required, use a bearing puller to remove them from the shaft.

NOTE

If a hot oil bath is used to heat the bearings, both the oil and the container must be absolutely clean. If the oil has been previously used, it must be thor oughly 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 con tinuous motion, to prevent the bearings from cool ing and sticking on the shaft.

Shaft and Bearing Reassembly and Installation

Clean and inspect the bearings as indicated in

Shaft and Bearing Removal and Disassembly .

To prevent damage during removal from the shaft, it is recommended that bearings be cleaned and inspected in place . It is strongly recommended that the bearings


Use caution when handling hot bear ings to prevent burns.

Slide the inboard bearing (52) onto the shaft until fully seated against the shaft shoulder.

Position the outboard bearing (45) on the shaft with the loading groove facing away from the impeller, and slide it onto the shaft until fully seated against the shaft shoulder.

After the bearings have been installed and allowed to cool, check to ensure that they have not moved away from the shaft shoulders in shrinking. If movement has occurred, use a suitably sized sleeve and a press to reposition the bearings against the shaft shoulders.

PAGE E - 7

OM-00905 10 SERIES

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.

When installing the bearings onto the shaft, never press or hit against the outer race, balls, or ball cage. Press only on the inner race.

Slide the shaft and assembled bearings into the pedestal until the inboard bearing is fully seated against the bore shoulder.


Inspect the impeller shaft for damage. Small scratches or nicks may be removed with a fine file or emery cloth. If excessive wear exists, the shaft will have to be replaced.

When installing the shaft and bearings into the pedestal bore, push against the outer race. Never hit the balls or ball cage.

Slide the oil seal (23) over the shaft and press it into the pedestal bore with the lip positioned as shown in Figure E-1. Be careful not to damage the oil seal lip.

Install the oil seal (42) into the bearing cover (47) with the lip positioned as shown in Figure E-1.

Lubricate the bearing cover O‐ring (48) and install it in the groove in the bearing cover.

Install the wave washer (46) and position the bear ing cover over the shaft and against the pedestal with the word “TOP” at the 12 o'clock position. Se cure the bearing cover to the pedestal with the hardware (28 and 29).

Secure the pedestal to the base with the previously removed hardware. Be sure to reinstall any leveling shims used under the mounting feet.

Lubricate the bearings and pedestal as indicated in LUBRICATION at the end of this section.

Seal Reassembly and Installation

Clean the seal cavity and shaft with a cloth soaked in fresh cleaning solvent.

PAGE E - 8

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. If necessary to reuse an old seal in an emer gency, carefully wash all metallic parts in fresh cleaning solvent and allow to dry thoroughly.

Handle the seal parts with extreme care to prevent damage. Be careful not to contaminate precision finished faces; even fingerprints on the faces can shorten seal life. If necessary, clean the faces with a 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 leak age. Clean and polish the shaft sleeve (31), or re place 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 .

If a replacement seal is being used, remove it from the container and inspect the precision finished faces to ensure that they are free of any foreign matter.

To ease installation of the seal, lubricate the O‐ rings, bellows and shaft sleeve with water or a very small amount of oil, and apply a drop of light lubri cating oil on the finished faces. Assemble the seal as follows, (see Figure E-2).


10 SERIES

SPRING

IMPELLER

SHIMS

RETAINER

SHAFT

KEY

IMPELLER

SHAFT

OM-00905

SEAL PLATE

O‐RINGS

SHAFT

SLEEVE

SHAFT

SLEEVE

O‐RING

IMPELLER

BELLOWS

ROTATING

ELEMENT

STATIONARY

SEAT

STATIONARY

ELEMENT

Figure E-2. 46512-259 Seal Assembly

This seal is not designed for operation at temperatures above 160 F (71 C). Do not use at higher operating temperatures.

just flush with the chamfered end of the shaft.

Slide the sleeve and rotating subassembly onto the shaft until the seal faces contact. Use caution to ensure that the shaft sleeve O‐ring is not cut or damaged on the impeller keyway. Continue to push the sleeve through the seal until it bottoms against the shaft shoulder. Install the seal spring.

Lubricate the O‐rings (22 and 53) with a small amount of grease and install them on the seal plate

(56).

Lubricate the seal assembly as indicated in

LUBRICATION , after the impeller has been in stalled.

Position the seal plate on a flat surface with the im peller side up. Press the stationary subassembly

(consisting of the stationary seat, O‐rings and sta tionary element) into the seal plate until the station ary seat bottoms against the seal plate bore.

Impeller Installation And Adjustment

Slide the seal plate onto the shaft and secure it to the pedestal with the hardware (24 and 25).

Lubricate and install the O‐ring in the groove in the

I.D. of the shaft sleeve (31). Lubricate the shaft sleeve and slide the rotating subassembly (con sisting of the rotating element, retainer and bel lows) onto the sleeve until the rotating element is


Inspect the impeller, and replace it if cracked or badly worn. Install the same thickness of impeller adjusting shims as previously removed, and install the impeller key (81). Apply a thin, uniform coat of

“Never‐Seez” or equivalent compound to the shaft area under the impeller and press the impeller onto the shaft until fully seated. Make sure the seal spring is squarely seated over the step on the back of the impeller.

A clearance of .010 to .020 inch (0,25 to 0,51 mm) is required between the impeller and seal plate to

PAGE E - 9

OM-00905 10 SERIES achieve maximum pump efficiency. Use a feeler gauge to measure this clearance and add or re move impeller adjusting shims as required.

NOTE

If the pump casing (1) has been secured to the ped estal assembly, this clearance may be obtained by removing shims until the impeller scrapes against the seal plate when the shaft is turned by hand. After the impeller scrapes, add approximately .010 inch

(0,25 mm) of shims and reinstall the impeller.

Check to ensure there is no scraping or binding be fore proceeding with pump reassembly.

Make sure the threads on the impeller capscrew

(78) and the tapped threads in the impeller shaft are clean (degreased). Install the roll pin and im peller washer (79 and 80). Apply four drops of

“Loctite Threadlocker No. 242‐31” or equivalent around the circumference of the capscrew threads, one inch from the end of the capscrew.

Install the capscrew and torque to 145 ft. lbs. or

1740 in. lbs. (20 m. kg.).

Pump Casing Installation

Ensure that the seal plate O‐ring (22) is installed and lubricated with light grease or a very small amount of oil. Secure the pump casing and bottle oiler bracket (39) to the pedestal assembly with the hardware (38, 54 and 55).

Reinstall the bottle oiler (40). Remove the plug from the hose (36), reconnect it to the male connector

(35) in the seal plate and secure with the clamp

(37).

If removed, replace the discharge flange gasket

(20) and secure the reducer (18) with the hardware

(15, 16 and 17). Reconnect the discharge piping.

Lubricate the wear plate O‐ring (58) with “Never‐

Seez” or equivalent and install it in the groove on the wear plate. Secure the suction elbow and wear plate to the pump casing with the hardware (12, 13,

61 and 62).

A clearance of .010 to .020 inch (0,25 to 0,51 mm) between the impeller and the wear plate is also rec ommended for maximum pump efficiency. To ad just this clearance, back off the jam nuts (11) until they contact the heads of the wear plate adjusting screws (12). Loosen the hardware (64 and 65) se curing the wear plate to the suction elbow. Tighten the adjusting screws evenly, no more than a half turn at a time, while rotating the impeller shaft by hand until the wear plate scrapes against the im peller. Back off each of the adjusting screws 1/2 turn, then tighten the jam nuts until they are snug against the suction head. Re‐tighten the hardware

(64 and 65).

Secure the pedestal foot (59) and suction elbow support (69) to the pump casing using the hard ware (61, 62, 71 and 72). Reinstall any leveling shims used under the pedestal foot and suction el bow support, and secure them to the base with the previously removed hardware.

Suction Check Valve Installation

Install one stainless steel flat washer (87) on each side of the bearing pivot arm. Position the check valve (91) in the check valve body (89) with the 1/2” diameter core holes toward the pump side of the check valve body. Secure the check valve and piv ot caps (88) to the check valve body with the hard ware (85 and 90).

NOTE

Be sure the check valve is positioned so that the

1/2” diameter core holes face toward the interior of the pump.

Wear Plate And Suction Elbow Installation

Lubricate the wear plate O‐ring (66) with “Never‐

Seez” or equivalent and install it in the groove in the wear plate (67). Press the wear plate into the suc tion elbow (70) and secure it with the hardware (64 and 65).

PAGE E - 10

Secure the check valve body to the suction elbow with the “Victaulic” coupling (4). Be sure the rubber gasket is properly seated and not damaged.

Reach through the cover plate access opening and check the operation of the check valve to en sure proper seating and free movement.


10 SERIES OM-00905

Final Pump Assembly

Install the shaft key (43) and reconnect the pump to the power source. Be sure the pump and power source are proper aligned, (see Alignment in IN

STALLATION ) before installing the leveling shims and base mounting hardware.

Fill the pump casing with clean liquid. Reinstall the cover plate assembly (6) and gasket (5) and tighten it.

Be sure the pump and power source are securely mounted to the base and that they are properly aligned. If used, removed the eye bolt used to lift component parts.

Install the suction and discharge lines and open all valves. Make certain that all piping connections are tight, properly supported and secure. Open all the valves in the suction and discharge lines.

Be sure the pump and power source have been properly lubricated, see LUBRICATION .

Refer to OPERATION , Section C, before putting the pump back into service.

PRESSURE RELIEF VALVE

MAINTENANCE

The suction elbow is equipped with a pressure re lief valve (82) to provide additional safety for the pump and operator (refer to Liquid Temperature

And Overheating in OPERATION ).

It is recommended that the pressure relief valve as sembly be replaced at each overhaul, or any time the pump overheats and activates the valve. Never replace this valve with a substitute which has not been specified or provided by the Gorman‐Rupp

Company.

Periodically, the valve should be removed for in spection and cleaning. When reinstalling the relief valve, apply `Loctite Pipe Sealant With Teflon No.

592' or equivalent compound, on the relief valve threads. Position the valve air vent with the dis charge port pointing down.


LUBRICATION

Bearings

The pedestal was fully lubricated when shipped from the factory. Check the oil level regularly and maintain it at the midpoint of the sight gauge (49).

When lubrication is required, unscrew the air vent

(27) and fill the pedestal with SAE No. 30 non‐det ergent oil. Clean and reinstall the pedestal air vent.

When lubricating a dry (overhauled) pedestal, add approximately 128 ounces (3,8 Liters) of oil. Do not overfill. Over‐lubrication can cause the bearings to over‐heat, resulting in premature bearing failure.

Under normal conditions, change the oil each

5000 hours of operation, or at twelve month inter vals, which ever occurs first. Change the oil more frequently if the pump is operated continuously or installed in an environment with rapid temperature change.

Monitor the condition of the bearing lubri cant regularly for evidence of rust or mois ture condensation. This is especially im portant in areas where variable hot and cold temperatures are common.

For cold weather operation, consult the factory or a lubricant supplier for the recommended grade of oil.

Seal Assembly

Check the seal lubricant before starting the pump and periodically during operation. Fill the bottler oiler with SAE No. 30 non‐detergent oil. Check the oil level regularly and maintain it at the level indi cated on the bottle oiler.

Periodically clean and reinstall the seal cavity air vent (26).

Power Source

Consult the literature supplied with the power source, or contact your local power source repre sentative.

PAGE E - 11

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 MANSFIELD, OHIO

GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA

GORMAN-RUPP PUMPS 112E60-B Installation, Operation, And Maintenance Manual With Parts List 34 Pages

GORMAN-RUPP PUMPS 112E60-B Installation, Operation, And Maintenance Manual With Parts List

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

112E60-B

THE GORMAN‐RUPP COMPANY MANSFIELD, OHIO

INTRODUCTION

SAFETY - SECTION A

INSTALLATION - SECTION B

OPERATION - SECTION C

TROUBLESHOOTING - SECTION D

Preventive Maintenance Schedule

PUMP MAINTENANCE AND REPAIR - SECTION E

,

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 MANSFIELD, OHIO

Related manuals

GORMAN-RUPP PUMPS 112E60-B Installation, Operation, And Maintenance Manual With Parts List 34 Pages

GORMAN-RUPP PUMPS 112E60-B Installation, Operation, And Maintenance Manual With Parts List

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

112E60-B

THE GORMAN‐RUPP COMPANY MANSFIELD, OHIO

INTRODUCTION

SAFETY - SECTION A

INSTALLATION - SECTION B

OPERATION - SECTION C

TROUBLESHOOTING - SECTION D

Preventive Maintenance Schedule

PUMP MAINTENANCE AND REPAIR - SECTION E

,

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 MANSFIELD, OHIO

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