Gormann-Rupp Pumps 10 Series Installation, Operation, And Maintenance Manual With Parts List

ACDE OM‐00641‐03

March 26, 1980

Rev. C 12‐30‐2013

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

13C20-B

THE GORMAN‐RUPP COMPANY

D

MANSFIELD, OHIO

www.grpumps.com

GORMAN‐RUPP OF CANADA LIMITED

D

ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

e

1980 The Gorman‐Rupp Company

Register your new

Gorman‐Rupp pump online at www.grpumps.com/register .

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

Pump Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Mounting

Clearance

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

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

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

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

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

Coupled Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

V‐Belt Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

Tension Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

BEARING TEMPERATURE CHECK

Cold Weather Preservation

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

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

PAGE C - 1

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PAGE C - 3 i

TABLE OF CONTENTS

(continued)

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

PAGE D - 1

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

PAGE D - 3

PUMP MAINTENANCE AND REPAIR ‐ SECTION E . . . . . . . . . . . . . . . . .

PAGE E - 1

STANDARD PERFORMANCE CURVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PARTS LIST:

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

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

Back Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Check Valve Removal and Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Casing Removal

Impeller Removal

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

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

Seal Removal and Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shaft and Bearing Removal and Disassembly

Shaft and Bearing Reassembly and Installation

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

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

Seal Reassembly and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Impeller Installation and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Back Cover Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Check Valve Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Final Pump Assembly

LUBRICATION

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

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

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

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

Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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PAGE E - 10 ii

10 SERIES OM-00641

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 cast iron, with duc tile iron impeller.

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.

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

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:

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.

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.

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

NOTE

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

PAGE I - 1

10 SERIES OM-00641

SAFETY ‐ SECTION A

This information applies to 10 Series ba sic pumps. Gorman‐Rupp has no con trol over or particular knowledge of the power source which will be used. Refer to the manual accompanying the power source before attempting to begin oper ation.

This manual will alert personnel to known procedures which require spe cial attention, to those which could damage equipment, and to those which could be dangerous to personnel.

How ever, this manual cannot possibly antici pate and provide detailed instructions and precautions for every situation that might occur during maintenance of the unit. Therefore, it is the responsibility of the owner/maintenance personnel to ensure that only safe, established main tenance procedures are used, and that any procedures not addressed in this manual are performed only after estab lishing that neither personal safety nor pump integrity are compromised by such practices.

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

Do not attempt to pump volatile or flam mable liquids which may damage the pump or endanger personnel as a result of pump failure.

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.

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.

SAFETY

After the pump has been installed, make certain that the pump and all piping or hose connections are tight, properly supported and secure before operation.

PAGE A - 1

OM-00641 10 SERIES

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.

Do not operate the pump without shields and/or guards in place over the drive shafts, belts, and/or couplings, or other rotating parts. Exposed rotating parts can catch clothing, fingers, or tools, causing severe injury to person nel.

Do not 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 completely cool before servicing.

Never run this pump backwards. Be cer tain that rotation is correct before fully engaging the pump.

Pumps and related equipment must be in stalled and operated according to all na tional, local and industry standards.

Overheated pumps can cause severe burns and injuries. If overheating of the pump occurs:

1. Stop the pump immediately.

2. Ventilate the area.

3. Allow the pump to completely cool.

4. Check the temperature before opening any covers, plates, gauges, or plugs.


6. Refer to instructions in this manual before restarting the pump.

PAGE A - 2 SAFETY

10 SERIES OM-00641

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

INSTALLATION

Figure B-1. Pump Model 13C20-B

PAGE B - 1

OM-00641 10 SERIES

PREINSTALLATION INSPECTION POSITIONING PUMP

The pump assembly was inspected and tested be fore shipment from the factory. Before installation, inspect the pump for damage which may have oc curred during shipment. Check as follows: a. Inspect the pump for cracks, dents, damaged threads, and other obvious damage.

b. Check for and tighten loose attaching hard ware. Since gaskets tend to shrink after dry ing, check for loose hardware at mating sur faces.

c. 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.

Lifting

Only operate this pump in the direction in dicated by the arrow on the pump body and on the accompanying decal. Other wise, the impeller could become loosened from the shaft and seriously damage the pump.

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 has been stored for more than 12 months, some of the components or lubri cants may have exceeded their maximum shelf life. These must be inspected or re placed to ensure maximum pump service.

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.

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.

Clearance

It is recommended that 18 inches (457 mm) of clearance be provided in front of the back cover to permit removal of the cover and easy access to the pump interior. A minimum clearance of 7‐1/2 in ches (190,5 mm) must be maintained to permit re moval of the cover.

INSTALLATION

10 SERIES OM-00641

SUCTION AND DISCHARGE PIPING

Pump performance is adversely effected by in creased suction lift, discharge elevation, and fric tion losses. See the performance curve on Page

E‐1 to be sure your overall application allows pump to operate within the safe operation range.

Materials

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 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

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.

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 2‐1/2 inch

(63,5 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.

PAGE B - 3

OM-00641 10 SERIES

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 B-2 shows recommended minimum submergence vs.

velocity.

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).

Figure B-2. Recommended Minimum Suction Line Submergence vs. Velocity

PAGE B - 4 INSTALLATION

10 SERIES OM-00641

DISCHARGE LINES

Siphoning

Do not terminate the discharge line at a level lower than that of the liquid being pumped unless a si phon breaker is used in the line. Otherwise, a si phoning action causing damage to the pump could result.

Valves

If a throttling valve is desired in the discharge line, use a valve as large as the largest pipe to minimize friction losses. Never install a throttling valve in a suction line.

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

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.

pass line should be at least 1 inch (25,4 mm) in di ameter to minimize the chance of plugging.

In low discharge head applications (less than 30 feet (9,1 m)), it is recommended that the bypass 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 outline may be terminated with a six‐to‐eight foot

(1,8 to 2,4 m) length of 1‐1/4 inch (31,8 mm) 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.

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

Bypass Lines

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 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.

NOTE

The bypass line should be sized so that it does not affect pump discharge capacity; however, the by

INSTALLATION

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 (9,1 m), an excessive amount of liquid may be bypassed and forced back to the wet well under the full working pressure of the pump; this will re duce overall pumping efficiency. Therefore, it is recommended that a Gorman‐Rupp Automatic

Air Release Valve be installed in the bypass line.

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

Automatic Air Release Valves 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.

PAGE B - 5

OM-00641 10 SERIES

Except in certain specific applications (to prevent flooding during service of an auto matic air release valve in a below‐ground lift station), if a manual shut‐off valve is in stalled anywhere in a bypass line, it must be a full‐opening, ball‐type valve to pre vent plugging by solids.

liquid from the pump by removing the casing drain plug. Use caution when re moving the plug to prevent injury to per sonnel 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.

A manual shut‐off valve should not be installed in any bypass line. A manual shut‐off valve may inadvertently be left closed during operation. A pump which has lost prime may continue to operate without reaching prime, causing dan gerous overheating and possible explo sive rupture of the pump casing. Per sonnel could be severely injured.

Allow an over‐heated pump to com pletely cool before servicing. Do not re move plates, covers, gauges, or fittings from an over‐heated pump. Liquid with in the pump can reach boiling tempera tures, and vapor pressure within the pump can cause parts being disen gaged to be ejected with great force. Af ter the pump completely cools, drain the

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 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.

Air Release Valve Installation

The Automatic Air Release Valve must be inde pendently mounted in a horizontal position be tween the pump discharge port and the inlet side of the discharge check valve (see Figure 3). The inlet opening in the Air Release Valve is equipped with standard 1‐inch NPT pipe threads.


10 SERIES

90 _ LONG

RADIUS

ELBOW

CLEAN‐OUT

COVER

INSTALL AIR RELEASE VALVE

IN HORIZONTAL POSITION

SUPPORT

BRACKET

BLEED LINE 1”

(25,4 MM) DIA. MIN.

(CUSTOMER FUR

NISHED) DO NOT EX

TEND BELOW PUMP

OFF LIQUID LEVEL

SUCTION

LINE

WET WELL

OR SUMP

Figure 3. Typical Automatic Air Release Valve Installation

OM-00641

DISCHARGE PIPE

DISCHARGE

CHECK VALVE

PUMP DISCHARGE

SELF‐PRIMING

CENTRIFUGAL

PUMP

INSTALLATION PAGE B - 7

OM-00641 10 SERIES

Connect the valve outlet to a bleed line which slopes back to the wet well or sump. The bleed line must be the same size as the outlet opening or larger, depending on which Air Release Valve is be ing used. If piping is used for the bleed line, avoid the use of elbows whenever possible.

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

NOTE

For multiple pump installations, it is recommended that each Air Release Valve be fitted with an inde pendent bleeder line directed back to the wet well.

If multiple Air Release Valves are installed in a sys tem, do not direct bleeder lines to a common mani fold pipe. Contact your Gorman‐Rupp distributor or the Gorman‐Rupp Company for information about installation of an Automatic Air Release Valve for your specific application.

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

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 4A).

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.

PAGE B - 8

Figure 4A. Alignment of V‐Belt Driven Pumps

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 4B).

INSTALLATION

10 SERIES OM-00641

Figure 4B. Alignment of V‐Belt Driven Pumps

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.

MISALIGNED:

SHAFTS

NOT PARALLEL

MISALIGNED:

SHAFTS

NOT IN LINE

ALIGNED: SHAFTS

PARALLEL AND

SHEAVES IN LINE

Figure 4C. 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.

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 4C). In drive systems using two or more belts, make certain that the belts are a matched set; unmatched sets will cause accelerated belt wear.

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.

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


OM-00641 10 SERIES 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

Deflection

Figure 5. 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 5 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

Yy‐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 5. Position the bottom 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 tension for new belts is higher than that for used belts to allow for expected belt stretching. Do not over‐ten sion used belts to the higher deflection forces shown for new belts.


10 SERIES

Table 1. Sheave Diameter (Inches)

Deflection Force (Lbs.)

Cross

Section

Smallest

Sheave

Diameter

Range

A,AX

R.P.M.

Range

3.0 ‐ 3.6

1000‐2500

2501‐4000

3.8 ‐ 4.8

1000‐2500

2501‐4000

B,BX

C,CX

D

3V,

3VX

5V,

5VX

8V

5.0 ‐ 7.0

1000‐2500

2501‐4000

3.4 ‐ 4.2

4.4 ‐ 5.6

5.8 ‐ 8.6

7.0 ‐ 9.0

9.5 ‐ 16.0

12.0 ‐ 16.0

18.0 ‐ 20.0

2.2 ‐ 2.4

2.65 ‐ 3.65

860‐2500

2501‐4000

860‐2500

2501‐4000

860‐2500

2501‐4000

500‐1740

1741‐3000

500‐1740

1741‐3000

200‐850

851‐1500

200‐850

851‐1500

1000‐2500

2501‐4000

1000‐2500

2501‐4000

4.12 ‐ 6.90

4.4 ‐ 6.7

7.1 ‐ 10.9

11.8 ‐ 16.0

12.5 ‐ 17.0

18.0 ‐ 22.4

1000‐2500

2501‐4000

500‐1749

1750‐3000

3001‐4000

500‐1740

1741‐3000

500‐1740

1741‐3000

200‐850

851‐1500

200‐850

851‐1500

Belt Deflection Force

Uncogged

Hy‐T Belts &

Uncogged

Hy‐T Torque

Team

Cogged

Torque‐Flex

& Machined

Edge torque

Team Belts

Used

Belt

3.7

2.8

4.5

3.8

5.4

4.7

14.1

12.5

11.5

9.4

30.4

25.6

5.3

4.5

6.3

6.0

11.5

9.4

15.5

14.6

33.0

26.8

39.6

35.3

3.6

3.0

4.9

4.4

12.7

11.2

New

Belt

18.9

16.7

23.4

21.8

49.3

39.9

59.2

52.7

5.5

4.2

6.8

5.7

8.0

7.0

5.1

4.4

7.3

6.6

Used

Belt

5.3

4.9

10.2

8.8

5.6

3.3

2.9

4.2

3.8

14.8

13.7

17.1

16.8

14.7

11.9

15.9

14.6

4.9

4.2

7.1

7.1

8.5

7.3

14.7

11.9

17.0

13.8

21.0

18.5

7.9

6.7

9.4

8.9

17.0

13.8

45.2

38.0

4.1

3.4

5.0

4.3

5.7

5.1

New

Belt

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

7.9

7.3

15.2

13.2

8.5

22.1

20.1

4.9

4.3

6.2

5.6

25.5

25.0

OM-00641

Table 2. Sheave Diameter (Millimeters)

Deflection Force (KG.)

Cross

Section

Smallest

Sheave

Diameter

Range

A,AX

R.P.M.

Range

75 ‐ 90

1000‐2500

2501‐4000

91 ‐ 120

1000‐2500

2501‐4000

B,BX

C,CX

D

3V,

3VX

125 ‐ 175

1000‐2500

2501‐4000

85 ‐ 105

106 ‐ 140

141 ‐ 220

175 ‐ 230

231 ‐ 400

305 ‐ 400

401 ‐ 510

55 ‐ 60

61 ‐ 90

860‐2500

2501‐4000

860‐2500

2501‐4000

860‐2500

2501‐4000

500‐1740

1741‐3000

500‐1740

1741‐3000

200‐850

851‐1500

200‐850

851‐1500

1000‐2500

2501‐4000

1000‐2500

2501‐4000

5V,

5VX

8V

91 ‐ 175

110 ‐ 170

171 ‐ 1275

276 ‐ 400

315 ‐ 430

431 ‐ 570

1000‐2500

2501‐4000

500‐1749

1750‐3000

3001‐4000

500‐1740

1741‐3000

500‐1740

1741‐3000

200‐850

851‐1500

200‐850

851‐1500

Belt Deflection Force

Uncogged

Hy‐T Belts &

Uncogged

Hy‐T Torque

Team

Cogged

Torque‐Flex

& Machined

Edge torque

Team Belts

Used

Belt

1.7

1.3

2.0

1.7

2.4

2.1

6.4

5.7

11.3

9.6

13.8

11.6

2.4

2.0

2.9

2.7

5.2

4.3

7.0

6.6

15.0

12.2

18.0

16.0

1.6

1.4

2.2

2.0

5.8

5.1

New

Belt

8.6

7.6

10.6

9.9

22.4

18.1

26.8

23.9

2.5

1.9

3.1

2.6

3.6

3.2

2.3

2.0

3.3

3.0

Used

Belt

1.5

1.3

1.9

1.7

2.4

2.2

4.6

4.0

2.5

6.7

6.2

7.8

7.6

16.8

14.2

20.5

17.2

7.7

6.3

9.5

8.4

3.6

3.0

4.3

4.0

1.9

1.5

2.3

2.0

2.6

2.3

2.2

1.9

3.2

3.2

3.9

3.3

6.7

5.4

7.2

6.6

New

Belt

3.3

2.8

4.8

4.1

5.7

4.9

9.9

7.9

2.8

2.3

3.4

2.9

4.3

3.4

10.7

9.8

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


10 SERIES OM-00641

OPERATION - SECTION C


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

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

Do not attempt to pump volatile, or flam mable liquids which may damage the pump or endanger personnel as a result of pump failure.

Add liquid to the pump casing when:

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

2. The pump has not been used for a consider able length of time.

3. The liquid in the pump casing has evapo rated.

Once the pump casing has been filled, the pump will prime and reprime as necessary.

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

Section E, Page 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.

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 un der pressure could cause injury to per sonnel.

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 indicated by an arrow on the pump body or accompanying decals. If the pump is operated in the wrong direc tion, the impeller could become loosened from the shaft and seriously damage the pump.

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.

OPERATION

The pump must operate in the direction in dicated by the arrow on the pump, or ac companying decals. Reverse rotation could loosen the impeller and seriously damage the pump.

PAGE C - 1

OM-00641 10 SERIES

Consult the operating manual furnished with the pump power source before attempting to start the power source.

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 incorrect on a single‐phase motor, consult the lit erature supplied with the motor for specific instruc tions.

OPERATION

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 operating 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.

Lines With a Bypass

Close the discharge throttling valve (if so equipped) so that the pump will not have to prime against the weight of the liquid in the discharge line. Air from the suction line will be discharged through the bypass line back to the wet well during the priming cycle. When the pump is fully primed and liquid is flowing steadily from the bypass line, open the discharge throttling valve. 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.

PAGE C - 2

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.

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 (see Section E,

Page 1).

Pump Vacuum Check

With the pump inoperative, install a vacuum gauge in the system, using pipe dope on the threads.

OPERATION

10 SERIES OM-00641

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.

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

After stopping the pump, disconnect the power source or lock it out to ensure that the pump will re main inoperative.

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 temperatures 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 Section E). Bear ing overheating can also be caused by shaft misalignment and/or excessive vibration.

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.

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.

OPERATION PAGE C - 3

10 SERIES

TROUBLESHOOTING - SECTION D


OM-00641


1. Familiarize yourself with this manual.



4. Check the temperature before open ing any covers, plates, or plugs.


6. Vent the pump slowly and cautiously.


TROUBLE

PUMP FAILS TO

PRIME

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE

POSSIBLE CAUSE PROBABLE REMEDY

Not enough liquid in casing.

Add liquid to casing. See

PRIMING .

Clean or replace check valve.

Suction check valve contaminated or damaged.

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.

Suction lift or discharge head too high.

Check piping installation and install bypass line if needed. See INSTAL

LATION .

Strainer clogged.

Check strainer and clean if neces sary.

Air leak in suction line.

Lining of suction hose collapsed.

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

Impeller or other wearing parts worn or damaged.

Correct leak.

Replace suction hose.

Check installation and correct submergence as needed.

Replace worn or damaged parts.

Check that impeller is properly centered and rotates freely.

TROUBLESHOOTING PAGE D - 1

OM-00641 10 SERIES

TROUBLE POSSIBLE CAUSE PROBABLE REMEDY

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE (cont.)

Leaking or worn seal or pump gasket.

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

Impeller clogged.

Free impeller of debris.

Pump speed too slow.

Pump running backwards.

Check driver output; check belts or couplings for slippage.

Check direction of rotation and correct by interchanging any two motor leads at control box. (See

Pump Rotation , Section C).

PUMP REQUIRES

TOO MUCH

POWER

PUMP CLOGS

FREQUENTLY

Suction lift or discharge head too high.

Check piping installation and install bypass line if needed. See INSTAL

LATION .

Pump speed too high.

Discharge head too low.

Check driver output check that sheaves or couplings are correctly sized.

Adjust discharge valve.

Liquid solution too thick.

Discharge flow too slow.

Dilute if possible.

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

Clean valve.

Suction check valve or foot valve clogged or binding.

EXCESSIVE NOISE Cavitation in pump.

Pumping entrained air.

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.

Pump or drive not securely mounted.

Secure mounting hardware.

BEARINGS RUN

TOO HOT

Impeller clogged or damaged.

Bearing temperature is high, but within limits.

Low or incorrect lubricant.

Suction and discharge lines not prop erly supported.

Drive misaligned.

Clean out debris; replace damaged parts.

Check bearing temperature regular ly to monitor any increase.

Check for proper type and level of lubricant.

Check piping installation for proper support.

Align drive properly.

PAGE D - 2 TROUBLESHOOTING

10 SERIES OM-00641

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 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.

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

I

I

I

C

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.

TROUBLESHOOTING PAGE D - 3

10 SERIES OM-00641

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 13C20-B

Based on 70

_

F (21

_

C) clear water at sea level with minimum suction lift. Since pump installations are seldom identical, your performance may be dif ferent due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.

Contact the Gorman‐Rupp Company to verify per formance or part numbers.

If your pump serial number is followed by an “N”, your pump is NOT a standard production model.

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

MAINTENANCE & REPAIR PAGE E - 1

OM-00641

PARTS PAGE

SECTION DRAWING

10 SERIES

PAGE E - 2

Figure E-1. Pump Model 13C20-B

MAINTENANCE & REPAIR

10 SERIES OM-00641

PARTS LIST

Pump Model 13C20-B

(From S/N 710764 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 NAME PLATE

5 DRIVE SCREW

.

6 PIPE PLUG

.

7 FILL PLUG ASSY

8 BOTTLE OILER

9 PIPE COUPLING

10 PIPE NIPPLE

11 IMP ADJ SHIM SET

SEE NOTE BELOW

12870 11000 1

12451A --1

38818-023 13990 1

BM#04-03 17000 4

P04 15079 1

48271-068 --1

S1933

AE02

T0206

2X

--1

15079 1

15079 1

17090 REF

12 OIL SEAL

13 SHAFT SLEEVE

14 AIR VENT

15 PEDESTAL

16 ROTATION DECAL

S506

12449

S1703

3114B

2613M

--1

16000 1

--1

10010 1

--1

17 BEARING RET O‐RING

18 RETAINING RING

25152-235

S247

---

---

19 BEARING ADJ SHIM SET 48261-009 ---

20 OIL SEAL

21 SHAFT KEY

25227-303

N0407

---

15990

1

1

1

1

1

22 IMPELLER SHAFT

23 SET SCREW

24 BEARING RETAINER

38514-547 15010 1

GA#10-01S 15990 2

38322-521 26000 1

25 BALL BEARING

26 SIGHT GAUGE

27 PIPE PLUG

23275-008

26714-011

P06

28 PEDESTAL DRAIN PLUG P06

---

---

15079

15079

1

1

1

1

29 BALL BEARING

30 OIL SEAL

31 SLINGER RING

32 PIPE PLUG

.

33 STUD

34 HEX NUT

35 SEAL PLATE

36 CASING GASKET SET

23275-008 --1

25227-311 ---

3272

P02

19120

15079

1

1

1

C0608

D06

15991

15991

8

8

38272-344 10010 1

3G 18000 1

37 WEAR PLATE ASSY

.

38 CASING DRAIN PLUG

39 BACK COVER GASKET

2634A

P08

2985G

15990

15079

1

1

19090 1

40 BACK CVR PLATE ASSY 42111-924 --1

41 -DRIVE SCRWE

42 -WARNING PLATE

BM#04-03 17000 4

2613EV 13990 1

43 -PIPE PLUG

44 -BACK COVER

P04 15079 1

NOT AVAILABLE 1

INDICATES PARTS RECOMMENDED FOR STOCK

.

INCLUDED WITH

REPAIR PUMP CASING ASSY

46471-516 ---


1

ITEM

NO.

PART NAME PART

NUMBER

MAT'L

CODE

QTY

45 CLAMP BAR SCREW

.

46 MACHINE BOLT

47 CLAMP BAR

48 LOCK WASHER

49 HEX NUT

50 HEX HD CAPSCREW

51 LOCK WASHER

2536

A1009

12872

J06

D06

B1008

J10

24000 1

15991 2

11010 1

15991 2

15991 2

15991 4

15991 4

52 SUCTION FLANGE

53 FLAP VALVE ASSY

12874 10010 1

46411-060 --1

54 -NYLOCK CAPSCREW BT0405

55 -BACKUP PLATE 33461-004

15991

15020

2

1

56 -SPACER SLEEVE 31411-088 15990 2

57 -MOLDED FLAP VALVE 46411-059 24010 1

58 -FLAP VALVE ADAPTOR 33291-006 11060 1

59 PIPE PLUG P04 15079 1

60 CHECK VALVE PIN 11557A 17010 1

61 SUCT FLANGE GASKET 11412G 19370 1

NOT SHOWN:

DISCHARGE STICKER

INSTRUCTION LABEL

G‐R DECAL

LUBE DECAL

INSTRUCTION TAG

INSTRUCTION TAG

SUCTION STICKER

PRIMING STICKER

6588BJ

2613DK

GR-03

6658AG

6588AH

---

---

---

38816-079 ---

38817-011 ---

38817-012 ---

---

---

1

1

1

1

1

1

1

1

OPTIONAL:

STRAINER

FLANGED SUCTION:

-FLANGE

-PIPE PLUG

FLANGED DISCHARGE:

-FLANGE

-PIPE NIPPLE

CASING HEATER:

-120V

-240V

4917D

11412A

P20

1753A

T48

24000

10010

11990

10010

15070

47811-044 ---

47811-045 ---

1

1

1

1

1

1

1

HI TEMP SHUT‐DOWN KITS:

-145

_

F

-130 _ F

-120

_

F

48313-186

48313-256

48313-257

---

---

---

HIGH TEMP SHUT‐DOWN THERMOSTAT KIT:

-145

_

F 48313-172 ---

1

1

1

1

PAGE E - 3

OM-00641 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.


1. Familiarize yourself with this man ual.



PAGE E - 4

4. Check the temperature before

This pump is designed to handle materi als which could cause illness or injury through direct exposure or emitted fumes. Wear adequate protective cloth ing when working on the pump or pip ing.

opening any covers, plates, or plugs.





Back Cover Removal

Before attempting to service the pump, remove the pump casing drain plug (38) and drain the pump.

Clean and reinstall the drain plug.

The wear plate assembly (37) is easily accessible and may be serviced by removing the back cover assembly (40). Loosen the clamp bar screw (45) and remove the clamp bar (47). Pull the back cover and wear plate from the pump casing. Remove the back cover gasket (39). Clean the mating surfaces of the back cover plate and pump casing.


10 SERIES OM-00641

Inspect the wear plate and replace it if badly scored or worn. To remove the wear plate, disengage the hardware (48 and 49) securing it to the back cover.

If no further disassembly is required, see Back

Cover Installation .

Suction Check Valve Removal and Disassembly

If the check valve assembly (53) is to be serviced, remove the check valve pin (60), reach through the back cover opening and pull the complete assem bly from the suction flange (52).

Inspect the check valve parts for wear or damage.

If replacement is required, remove the nylock capscrews (54) and separate the check valve (57) from the adaptor (58) and backup plate (55). Press the spacer sleeves (56) out of the check valve.

If no further disassembly is required, see Suction

Check Valve Installation .

Pump Casing Removal

To service the impeller or seal assembly, discon nect the discharge piping. Remove the hardware securing the pump to the base. Disconnect the power source.

Remove the nuts (34) and separate the pump cas ing and gasket set (36) from the seal plate (35) and pedestal (15). Clean the mating surfaces of the seal plate and pump casing. Tie and tag the casing gaskets, or measure and record their thickness for ease of reassembly.

Tie and tag any leveling shims used under the pump casing mounting feet to ease reassembly.

Impeller Removal

Before removing the impeller, remove the bottle oil er and piping (8, 9 and 10). Remove the seal cavity drain plug (32) and drain the cavity to prevent the oil from escaping when the impeller is removed.

Clean and reinstall the drain plug.

Immobilize the impeller by wedging a block wood between the vanes. If removed, install the shaft key

(21). Install a lathe dog on the drive end of the shaft

(22) with the “V” notch positioned over the shaft keyway.

With the impeller rotation still blocked, strike the lathe dog sharply in a counterclockwise direction

(when facing the drive end of the shaft). The impel

MAINTENANCE & REPAIR ler may also be loosened by using a long piece of heavy bar stock to pry against the arm of the lathe dog in a counterclockwise direction (when facing the drive end of the shaft) as shown in Figure E-2.

Use caution not to damage the shaft or keyway.

When the impeller breaks loose, remove the lathe dog and wood block and unscrew the impeller from the shaft.

Turn

Counterclockwise

Lathe Dog Arm

Heavy

Bar Stock

“V” Notch

Shaft Key

Impeller Shaft

Lathe Dog

Setscrew

Figure E-2. Loosening Impeller

Unscrew the impeller from the shaft. Use caution when removing the impeller; tension on the seal spring will be released as the impeller is un screwed.

Inspect the impeller and replace it if cracked or badly worn. Slide the impeller adjusting shims (11) off the impeller shaft. Tie and tag the shims or mea sure and record their thickness for ease of reas sembly.

Seal Removal and Disassembly

Remove the spring centering washer and seal spring. Slide the shaft sleeve (13) and rotating por tion of the seal off the shaft as a single unit. Apply oil to the sleeve and work it up under the bellows.

Slide the rotating portion of the seal off the sleeve.

Slide the seal plate and stationary portion of the seal assembly off the shaft as a unit. Position the seal plate on a flat surface with the impeller side down. Use a suitably sized dowel to press the seal stationary components from the seal plate bore.

Position the seal plate on a flat surface with the im peller side up and press the oil seal (12) from the seal plate.

PAGE E - 5

OM-00641 10 SERIES

Inspect the seal plate and replace it if cracked or badly worn.

If no further disassembly is required, see Seal

Reassembly and Installation .

Shaft and Bearing Removal and Disassembly

When the pump is properly operated and main tained, the pedestal should not require disassem bly. Disassemble the shaft and bearings only when there is evidence of wear or damage.

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.

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 pedestal drain plug (28) and drain the bearing lubricant. Clean and reinstall the drain plug.

Remove the slinger ring (31).

Use snap ring pliers to remove the bearing retain ing ring (18) from the pedestal bore. Remove the bearing shim set (19). Tie and tag the shims or measure and record their thickness for ease of reassembly.

Remove the setscrews (23) from the bearing re tainer (24) and install two 10-32 UNF by 1 inch long screws (not supplied) in the holes. Use two screwdrivers to pry against the heads of the screws to remove the bearing retainer from the pedestal bore. Do not use the screws as jacking screws to remove the retainer. Remove the screws from the retainer and reinstall the setscrews.

Press the oil seal (20) from the bearing retainer. Re move the bearing retainer O‐ring (17) from the groove in the pedestal bore.

Place a block of wood against the impeller end of the shaft and tap the shaft and assembled bear ings (25 and 29) from the pedestal.

Be careful not to damage the shaft.

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

PAGE E - 6

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.

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.

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

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.


10 SERIES OM-00641

If bearing replacement is required, use a bearing puller or an arbor (or hydraulic) press to remove the bearings from the shaft.

Press the inboard oil seal (30) from the pedestal bore.

Shaft and Bearing Reassembly and Installation

Clean and inspect the bearings as indicated in

Shaft and Bearing Removal and Disassembly .

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.

Position the inboard oil seal (30) in the pedestal

(15) with the lip positioned as shown in Figure

E-1. Press the oil seal into the pedestal until the face is just flush with the machined surface in the pedestal.

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.

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.

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.

Use caution when handling hot bear ings to prevent burns.

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.

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

Slide the shaft and assembled bearings into the pedestal until the inboard bearing seats against the pedestal bore. Be careful not to roll or damage the lip of the oil seal (30).

Install a new O‐ring (17) in the groove in the pedes tal and lubricate it with light grease.

Press the outboard oil seal (20) into the bearing re tainer (19) with the lip positioned as shown in Fig ure E-1. Be sure the setscrews (23) are fully screwed into the bearing retainer. Position the bearing retainer in the pedestal bore with the set screws positioned horizontally in line.

Be careful not to damage the lip of the oil seal (20) on the shaft keyway. Press the bearing retainer into the pedes tal until it is fully seated against the outboard bear ing.

Install the same thickness of bearing adjusting shims (19) as previously removed. Secure the bearing retainer and shims using the bearing re taining ring (18) and check the shaft endplay.

NOTE

Shaft endplay should be between .002 and .010

inch (.05 to .25 mm). Add or remove bearing adjust ing shims to achieve the correct endplay.

Slide the slinger ring (31) onto the shaft.

Lubricate the pedestal as indicated in LUBRICA

TION at the end of this section.

PAGE E - 7

OM-00641 10 SERIES

Seal Reassembly and Installation

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

Most cleaning solvents are toxic and flammable. Use them only in a well ven tilated area free from excessive heat, sparks, and flame. Read and follow all precautions printed on solvent contain ers.

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.

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.

BELLOWS

SPRING CENTERING

WASHER

IMPELLER

SHIMS

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 (13), 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 and shaft sleeve with water or a very small amount of oil, and apply a drop of light lubricating oil on the finished faces. Assemble the seal as fol lows, (see Figure E-3).

SEAL PLATE

STATIONARY

SEAT

OIL SEAL

IMPELLER

SHAFT

STATIONARY

ELEMENT

SHAFT

SLEEVE

IMPELLER

PAGE E - 8

SPRING

RETAINER

ROTATING ELEMENT

O‐RINGS

Figure E-3. Seal Assembly


10 SERIES OM-00641

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

Position the seal plate (35) on a flat surface with the impeller side down. Apply a light coating of oil to the oil seal (12) and press it into the seal plate with the lip positioned as shown in Figure E-1.

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 fully seated in the seal plate bore.

Slide the seal plate over the shaft until fully seated against the pedestal. Be careful not to damage the lip of the oil seal (12) on the shaft threads.

Align the threaded hole for the bottle oiler piping with the opening in the top of the pedestal and tem porarily secure the seal plate using two capscrews and nuts (3/8-16 UNC by 1-1/2 inches long, not supplied).

Lubricate the shaft sleeve (13) with light oil and slide the rotating subassembly (consisting of the rotating element, retainer and bellows) onto the sleeve until the rotating element is just flush with the chamfered end of the sleeve. Slide the shaft sleeve and rotating subassembly onto the shaft until the sealing faces contact. Continue to push the sleeve through the seal until it bottoms against the shaft shoulder. Be careful not to damage or roll the lip of the oil seal (12). Install the seal spring and spring centering washer.

Lubricate the seal assembly as indicated in

LUBRICATION , after the impeller has been in stalled.

Impeller Installation And Adjustment

Inspect the impeller, and replace it if cracked or badly worn. Install the same thickness of impeller shims (11) as previously removed and screw the impeller onto the shaft until tight.


A clearance of .020 to .040 inch (0,51 to 1,02 mm) between the impeller and the seal plate is neces sary for maximum pump efficiency. Measure this clearance and add or remove impeller shims until this clearance is reached.

NOTE

Be sure the seal plate is tight against the pedestal while measuring this clearance.

Install the bottle oiler and piping (8, 9 and 10).

Pump Casing Installation

Remove the hardware temporarily securing the seal plate to the pedestal. Install the same thick ness of pump casing gaskets (36) as previously re moved and secure the pump casing (1) to the seal plate and pedestal with the nuts (34). Do not fully tighten the nuts at this time.

NOTE

The back cover assembly must be in place to adjust the impeller face clearance.

A clearance of .010 to .020 inch (0,25 to 0,51 mm) between the impeller and the wear plate (37) is also recommended for maximum pump efficiency. Set this clearance by adding or removing gaskets in the pump casing gasket set (36) until the impeller scrapes against the wear plate when the shaft is turned by hand. After the impeller scrapes, add ap proximately .010 inch (0,25 mm) of gaskets.

After the face clearance has been set, tighten the nuts (34) securing the pump casing to the pedes tal.

Suction Check Valve Installation

Inspect the check valve (57) and the other compo nents of the check valve assembly (53) and replace any badly worn or damaged parts.

Position the spacer sleeves (56) in the holes in the check valve. Insert the nylock capscrews (54) through the backup plate (55) and check valve.

Screw the nylock capscrews into the adaptor (58) until fully seated.

Reach through the back cover opening with the check valve and position the check valve adaptor

PAGE E - 9

OM-00641 10 SERIES in the mounting slot in the suction flange (52). Align the adaptor with the flange hole and secure the as sembly with the check valve pin (60).

Back Cover Installation

If the wear plate (37) was removed for replace ment, secure it to the cover plate (44) using the at taching hardware (48 and 49) at this time. The wear plate must be concentric to prevent binding when the back cover is installed.

Clean any scale or debris from the contacting sur faces on the pump casing that might prevent a good seal with the back cover. Replace the back cover gasket (39) and slide the back cover assem bly into the pump casing. Be sure the wear plate does not bind against the impeller.

NOTE

To ease future disassembly, apply a film of grease or `Never‐Seez' on the back cover shoulder, or any surface that contacts the pump casing. This action will reduce rust and scale build‐up.

Secure the back cover assembly by installing the clamp bar (47) and tightening the clamp bar screw

(45). Do not over‐tighten the clamp bar screw; it should be just tight enough to seal the back cover shoulder.

Remove the fill plug assembly (7) and fill the pump casing with clean liquid. Reinstall the fill plug and tighten it.

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

LUBRICATION

Seal Assembly

Fill the bottle oiler (8) with SAE No. 30 non‐deterg ent oil. Check the oil level regularly and keep the bottle oiler full.

Bearings

The pedestal was fully lubricated when shipped from the factory. Check the oil level regularly through the sight gauge (26) and maintain it at the middle of the gauge. When lubrication is required, add SAE No. 30 non‐detergent oil through the hole for the air vent (14). Do not over‐lubricate. Over‐lu brication can cause the bearings to over‐heat, re sulting in premature bearing failure.

Under normal conditions, drain the pedestal once each year and refill with clean oil to the middle of the sight gauge. Change the oil more frequently if the pump is operated continuously or installed in an environment with rapid temperature change.

Final Pump Assembly

Secure the pump to the base with the previously re moved hardware. Be sure to reinstall any leveling shims used under the pump casing or pedestal mounting feet. Install the shaft key (21) and con nect the power source.

Be sure the pump and power source are securely mounted to the base.

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 .

PAGE E - 10

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.

Power Source

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


For U.S. and International Warranty Information,

Please Visit www.grpumps.com/warranty or call:

U.S.: 419-755-1280

International: +1-419-755-1352

For Canadian Warranty Information,

Please Visit www.grcanada.com/warranty or call:

519-631-2870

THE GORMAN‐RUPP COMPANY

D

MANSFIELD, OHIO

GORMAN‐RUPP OF CANADA LIMITED

D

ST. THOMAS, ONTARIO, CANADA

Gormann-Rupp Pumps 10 Series Installation, Operation, And Maintenance Manual With Parts List 35 Pages

Gormann-Rupp Pumps 10 Series Installation, Operation, And Maintenance Manual With Parts List

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

13C20-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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Gormann-Rupp Pumps 10 Series Installation, Operation, And Maintenance Manual With Parts List 35 Pages

Gormann-Rupp Pumps 10 Series Installation, Operation, And Maintenance Manual With Parts List

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

13C20-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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