Gorman-Rupp Pumps PA6E60-6068H 1393312 and up User Manual

ACDU OM-05725−OE03

April 9, 2008

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

PA SERIES PUMP

MODEL

PA6E60−6068H

THE GORMAN-RUPP COMPANY MANSFIELD, OHIO

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

Printed in U.S.A

www.grpumps.com.

2008 The Gorman-Rupp Company

Register your new

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

Valid serial number and e-mail address required.

The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

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

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

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

Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

AUTO-START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Float Switch Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATION

PRIMING

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

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

STARTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Manual Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic Starting

OPERATION

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

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

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

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

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

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

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

BEARING TEMPERATURE CHECK

Cold Weather Preservation

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

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OPERATION − SECTION C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE C − 1

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TROUBLESHOOTING − SECTION D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE D − 1

PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE D − 3

PUMP MAINTENANCE AND REPAIR - SECTION E . . . . . . . . . . . . . . . . . PAGE E − 1

STANDARD PERFORMANCE CURVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE E − 1 i

TABLE OF CONTENTS

(continued)

PARTS LISTS:

Pump Model

Power Unit Kit

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

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

Pump End Assembly

Pump Assembly

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

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

Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Priming Chamber Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Priming Chamber Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Check Valve Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Priming Chamber Removal And Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Discharge Check Valve Removal and Disassembly

Pump Casing And Wear Ring Removal

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

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

Impeller and Wear Ring Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

Separating Pump Frame And Drive Assembly From Engine . . . . . . . . . . . . . . . . .

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

Bearing Cleaning And Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Shaft and Bearing Reassembly and Installation

Drive Assembly Installation

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

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

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

Wear Ring and Impeller Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wear Ring And Pump Casing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Discharge Check Valve Assembly and Installation . . . . . . . . . . . . . . . . . . . . . . . . . .

Priming Chamber Assembly And Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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PA SERIES

OM−05725

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 Installation, Operation, and Maintenance manual is designed to help you achieve the best performance and longest life from your Gorman-Rupp pump.

This pump is a PA Series, priming-assisted centrifugal model. The unit is designed for handling nonvolatile, non-flammable liquids containing specified entrained solids. The basic material of construction is gray iron.

Because pump installations are seldom identical, this manual cannot possibly provide detailed instructions and precautions for every aspect of each specific application. Therefore, it is the responsibility of the owner/installer of the pump to ensure that applications not addressed in this manual are performed only after establishing that neither operator safety nor pump integrity are compromised by the installation. Pumps and related equipment must be installed and operated according to all national, local and industry standards.

If there are any questions regarding the pump which are not covered in this manual or in other literature accompanying the unit, please contact your Gorman-Rupp distributor or the Gorman-

Rupp Company:

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

The following are used to alert personnel to procedures which require special attention, 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 required 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 possible damage which could result from failure to follow the procedure.

NOTE

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

For information or technical assistance on the engine, contact the engine manufacturer’s local dealer or representative.

INTRODUCTION PAGE I − 1

PA SERIES OM−05725

SAFETY - SECTION A

This information applies to Prime Aire

Series pumps. Refer to the manual accompanying the engine or power source before attempting to begin operation.

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

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

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

Therefore, it is the owner/installer’s responsibility to ensure that applications not addressed in this manual are performed only after establishing that neither operator safety nor pump integrity are compromised by the installation.

Use lifting and moving equipment in good repair and with adequate capacity to prevent injuries to personnel or damage to equipment. Attach lifting equipment to the lifting device fitted to the pump. If chains or cable are wrapped around the pump to lift it, make certain that they are positioned so as not to damage the pump, and so that the load will be balanced. The bail is intended for use in lifting the pump assembly only.

Suction and discharge hoses and piping must be removed from the pump before lifting.

Before attempting to open or service the pump:

1. Familiarize yourself with this manual.

2. Shut down the engine and disconnect the positive battery cable, or lock out incoming power to the motor and take precautions to ensure that the pump will remain inoperative.

3. Allow the pump to completely cool if overheated.

4. Check the temperature and make sure the pump is cool before opening any covers, plates, or plugs.

5. Close the suction and discharge valves.

6. Vent the pump slowly and cautiously.

7. Drain the pump.

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.

This pump is designed to handle most

SAFETY

Do not operate the pump against a closed discharge valve. If operated against a closed discharge valve, pump components will deteriorate, and the liquid could come to a boil, build pressure, and cause the pump casing to rupture or explode. Momentary closure of a discharge valve is acceptable only

PAGE A − 1

OM−05725 PA SERIES when required for startup or shutdown procedures.

stands and chock the wheels, if so equipped. Use caution when positioning the skid-mounted unit to prevent damage to the fuel tank.

Do not remove plates, covers, gauges, pipe plugs, or fittings from an overheated pump. Vapor pressure within the pump can cause parts being disengaged to be ejected with great force. Allow the pump to cool completely before servicing.

Do not operate an internal combustion engine in an explosive atmosphere.

When operating an internal combustion engine in an enclosed area, make sure exhaust fumes are piped to the outside.

These fumes contain carbon monoxide, a deadly gas that is colorless, tasteless and odorless.

This pump may be used to handle materials which could cause illness through direct exposure or emitted fumes. Wear adequate protective clothing when working on the pump or piping.

Fuel used by internal combustion engines presents an extreme explosion and fire hazard. Make certain that all fuel lines are securely connected and free of leaks. Never refuel a hot or running engine. Avoid overfilling the fuel tank. Always use the correct type of fuel.

This pump is equipped with automatic liquid level controls, and is subject to automatic restart. Keep hands and clothing away from the unit to prevent injury during automatic operation. Disconnect the positive battery cable before performing any maintenance. Failure to do so may result in serious personal injury.

Make sure the pump is level. Lower jack

Never tamper with the governor to gain more power. The governor establishes safe operating limits that should not be exceeded. Refer to the Performance

Curve in Section E, Page E-1 for the maximum continuous operating speed for this pump.

PAGE A − 2 SAFETY


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 arrange the pump and piping.

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.

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

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.

Pump Dimensions

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

See Figure 1 for the approximate physical dimensions of this pump.

OUTLINE DRAWING

Figure 1. Pump Model PA6E60−6068H

PREINSTALLATION INSPECTION a. Inspect the pump for cracks, dents, damaged threads, and other obvious damage.

The pump assembly was inspected and tested before shipment from the factory. Before installation, inspect the pump for damage which may have occurred during shipment. Check as follows:

INSTALLATION b. Check for and tighten loose attaching hardware. Since gaskets tend to shrink after drying, check for loose hardware at mating surfaces.

PAGE B − 1

OM−05725 PA SERIES 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. Refer to LUBRICATION in the Maintenance and

Repair Manual and perform duties as instructed.

e. If the pump has been stored for more than 12 months, some of the components or lubricants may have exceeded their maximum shelf life. These must be inspected or replaced 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 determine the repair or updating policy. Do not put the pump into service until appropriate action has been taken.

Battery Installation

Unless otherwise specified on the pump order, the engine battery is not included with engine driven units.

Refer to the information accompanying the battery and/or electrolyte solution for activation and charging instructions.

Before installing the battery, clean the positive and negative cable connectors, and the battery terminals. Secure the battery by tightening the holddown brackets. The terminals and clamps may be coated with petroleum jelly to retard corrosion. Connect and tighten the positive cable first, then the negative cable.

POSITIONING PUMP pump. If chains or cable are wrapped around the pump to lift it, make certain that they are positioned so as not to damage the pump, and so that the load will be balanced. The bail is intended for use in lifting the pump assembly only.

Suction and discharge hoses and piping must be removed from the pump before lifting.

Lifting

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.

The pump assembly can be seriously damaged if the chains or cables used to lift and move the unit are improperly wrapped around the pump.

Mounting

Locate the pump in an accessible place as close as practical to the liquid being pumped. Level mounting is essential for proper operation. The pump may have to be supported or shimmed to provide for level operation and eliminate vibration.

For engine driven units, the pump must be positioned as level as possible to ensure sufficient lubrication and fuel supply to the engine.

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 attempting to operate the pump.

Use lifting and moving equipment in good repair and with adequate capacity to prevent injuries to personnel or damage to equipment. Attach lifting equipment to the lifting device fitted to the

PAGE B − 2

If the pump has been mounted on a movable base, do not attempt to operate the pump unless the unit is level. Be sure

INSTALLATION

PA SERIES OM−05725 the leveling stands are positioned on a solid surface, and the wheels are chocked.

SUCTION AND DISCHARGE PIPING

Pump performance is adversely effected by increased suction lift, discharge elevation, and friction losses. See the performance curve and operating range shown 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, reinforced type to prevent collapse under suction. Using piping couplings in suction lines is not recommended.

Line Configuration

Keep suction and discharge lines as straight as possible to minimize friction losses. Make minimum use of elbows and fittings, which substantially 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 exactly with the pump port. Never pull a pipe line into place by tightening the flange bolts and/or couplings.

Lines near the pump must be independently supported 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

INSTALLATION 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 priming, 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 installed with the flat part of the reducers uppermost to avoid creating air pockets. Valves are not normally used in suction lines, but if a valve is used, install it with the stem horizontal to avoid air pockets.

Strainers

Be certain to use the strainer furnished with the pump; any spherical solids which pass through the strainer will also pass through the pump itself.

If a strainer not furnished with the pump 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 3-3/8 inch

(85,9 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 airtight seal. Follow the sealant manufacturer’s recommendations when selecting and applying the

PAGE B − 3

OM−05725 PA SERIES 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 diameter 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 suction inlet because the inflow will carry air down into the sump, and air entering the suction line will reduce pump efficiency.

If it is necessary to position inflow close to the suction 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 distance 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 recommended minimum submergence vs.

velocity.

Although not recommended, the vacuum assisted priming feature allows the pump to be operated temporarily in a slurping" application with varying water levels.

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).

PAGE B − 4

Figure 2. Recommended Minimum Suction Line Submergence vs. Velocity

INSTALLATION


DISCHARGE LINES

Siphoning

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

Valves

This pump is designed with a check valve in the discharge line.

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 on a suction lift application.

With high discharge heads, it is recommended that a throttling valve be installed in the discharge line to assist in protecting the pump from excessive shock pressure and reverse rotation if the engine is suddenly stopped.

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

ALIGNMENT

The alignment of the pump and engine is critical for trouble-free mechanical operation. See Section E,

Securing Intermediate And Drive Assembly To

Engine in MAINTENANCE AND REPAIR , for details.

AUTO-START

The standard pump is equipped with an auto-start control system which allows the pump to start and stop as the liquid level in the wet well or sump rises and falls.

INSTALLATION

Refer to the information which follows for installation details for the liquid level sensing system provided with your pump.

Float Switch Installation

The Float Switch autostart system employs either a single or double float switch, where a bulb raises or lowers (floats) with the liquid level, thus activating an enclosed micro switch. The floats are equipped with a socket type connector that plugs into a matching receptacle on the auto-start control box.

Standard floats are equipped with 50 feet (15,2 m) of cable.

When installing the floats, note the following: a.

Be sure to provide sufficient room in the wet well or sump so that floats do not get obstructed or drawn into the suction line. If a flexible suction hose is used, it may be extended to lay along the bottom of the wet well or sump and the float can be attached to the hose above the point where it bends along the bottom. Direct the suction line toward the flow, and the float(s) away from the flow. If a standpipe is available, attach the float switch cable to the standpipe in the sump at the approximate desired liquid level.

b. In a single float system, the cable can be tethered to the suction line or standpipe approximately 6 inches (152 mm) above the float.

This setting allows approximately 9 inches

(229 mm) of liquid rise between pump start/ stop. The start/stop interval may be increased by extending the float end of the cable. The liquid level in the sump will increase approximately 8 inches (203 mm) between start/stop intervals for every 6 inches (152 mm) of cable increase.

c. If a double float switch system is used, position the Start" float at the desired high water level in the sump, and the Stop" float at the desired low water level in the pump.

d. Refer to Figure 3 for additional float switch data.

PAGE B − 5

OM−05725 PA SERIES

ENGINE

CONTROL

BOX

ON

(Emptying)

OFF

(Filling)

CABLE

TETHER

POINT

OPERATING

RANGE

(See Table Below)

OFF

(Emptying)

1.25" Pipe

(Not Furnished)

ON

(Filling)

3.0

(0.9)

2.5

(.76)

2.0

(0.6)

1.5

(.46)

1.0

(0.3)

0.5

(.15)

1.0

(0.3)

2.0

(0.6)

3.0

(0.9)

APPROXIMATE FREE CORD LENGTH IN FT. (M)

4.0

(1.2)

Figure 3. Float Switch Data

PAGE B − 6 INSTALLATION


OPERATION − SECTION C


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

Do not operate an internal combustion engine in an explosive atmosphere.

When operating an internal combustion engine in an enclosed area, make sure exhaust fumes are piped to the outside.

These fumes contain carbon monoxide, a deadly gas that is colorless, tasteless and odorless.

cated (see LUBRICATION in MAINTENANCE

AND REPAIR ).

The pump will begin to prime upon startup. The air in the suction line will be discharged from the eductor discharge line. Complete priming is indicated by a positive discharge pressure reading.

If full priming is not achieved, shut down the pump and consult Maintenance and Repair, Section E for further details.

STARTING

Check the fuel level and oil levels in the engine, air compressor, pump bearings and seal housing.

Make sure the pump is level. Lower the jack stands and chock the wheels, if so equipped.

OPERATION

This pump is designed to handle most non-volatile, non-flammable liquids containing specified entrained solids and corrosives. Do not attempt to pump volatile, corrosive, or flammable liquids which may damage the pump or endanger personnel as a result of pump failure.

Make sure the pump is level. Lower jack stands and chock the wheels, if so equipped. Use caution when positioning the skid-mounted unit to prevent damage to the fuel tank.

Pump speed and operating condition points must be within the continuous performance range shown on the performance curve in Section E on page E−1.

PRIMING

Install the pump and piping as described in IN-

STALLATION . Make sure that the piping connections are tight, and that the pump is securely mounted. Check that the pump is properly lubri-

OPERATION


Consult the engine operations manual before attempting to start the unit.

Manual Starting

On initial start-up, set the engine speed at in the half-throttle position. Turn the keyswitch to ‘MANU-

PAGE C − 1


AL’. After the engine starts and the unit is fully primed, adjust the engine RPM until the desired flow rate is achieved.

Pump speed and operating condition points must be within the continuous performance range shown on the curve on

Page E-1.

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 rupture or explode. If overheating occurs, stop the pump immediately and allow it to completely cool before servicing it.

Approach any over-heated pump cautiously .

Automatic Starting

With the float system installed, follow the procedures outlined for manual starting and throttle adjustment. Switch the keyswitch to ‘OFF’ until the water level rises above the on point for the float system, then turn the keyswitch to the ‘AUTO’ setting.

The unit will run until the float signals the control that the water in the wet well is at the float off point, at which time the unit will shut down automatically.

When the float signals the control that the water in the wet well is at the float on point, the unit will restart automatically, repeating the cycle.

OPERATION

Leakage

Once the pump is fully primed, no leakage should be visible at pump mating surfaces, or at pump connections or fittings. Keep all line connections and fittings tight to maintain maximum pump efficiency.

Pump Vacuum Check

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.

PAGE C − 2

Allow an over-heated pump to completely cool before servicing. Do not remove plates, covers, gauges, or fittings from an overheated pump. Liquid within the pump can reach boiling temperatures, and vapor 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 removing the casing drain plug. Use caution when removing the plug to prevent injury to personnel from hot liquid.

Strainer Check

Check the strainer regularly, and clean it as necessary. The strainer should also be checked if pump flow rate begins to drop. Monitor and record the vacuum suction gauge 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 necessary, liquid pressure must be limited to 50% of the maximum permissible operating pressure shown on the pump performance curve.

STOPPING

Never halt the flow of liquid suddenly. If the liquid being pumped is stopped abruptly, damaging

OPERATION

PA SERIES OM−05725 shock waves can be transmitted to the pump and piping system. Close all connecting valves slowly.

Reduce the throttle speed slowly and allow the engine to idle briefly before stopping.

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

After stopping the pump, switch off the engine ignition and remove the key to ensure that the pump will remain inoperative.

BEARING TEMPERATURE CHECK

Bearings normally run at higher than ambient temperatures 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 inaccurate. Bearing temperatures can be measured accurately 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 correct level (see LUBRICATION in the Maintenance and Repair Manual). Bearing 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. Continued 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 rotating parts. If the pump will be idle for more than a few hours, or if it has been pumping liquids containing 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 preventing 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

PA SERIES

TROUBLESHOOTING − SECTION D


OM−05725



2. Shut down the engine and disconnect the positive battery cable and take precautions to ensure that the pump will remain inoperative.


4. Check the temperature and make sure pump is cool before opening any covers, plates, or plugs.



7. Drain the pump.

TROUBLE

PUMP FAILS TO

PRIME

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE

POSSIBLE CAUSE PROBABLE REMEDY

Discharge check valve contaminated, damaged, or unable to seat.

Air compressor head 180 out.

Air leak in suction line.

Lining of suction hose collapsed.

Clean or replace check valve.

Consult factory.

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 .

Air compressor damaged or belts broken.

Strainer clogged.

Check and repair/replace.

Check strainer and clean if necessary.

Check and clean eductor.

Eductor clogged.

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


TROUBLE

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE (cont.)

PUMP REQUIRES

TOO MUCH

POWER

PUMP CLOGS

FREQUENTLY

POSSIBLE CAUSE

Strainer clogged.

Discharge check valve clogged.

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

Impeller or other wearing parts worn or damaged.

Impeller clogged.

Discharge head too high.

Suction lift too high.

Pump speed too slow.

Belt or flexible coupling broken.

Pump speed too high.

Extreme ambient temperature.

Discharge head too low.

Fuel filter clogged.

Liquid solution too thick.

Fuel contaminated.

Pump or jack shaft bearing(s) frozen.

Discharge flow too slow.

Suction check valve or foot valve clogged or binding.

Liquid solution too thick.

EXCESSIVE NOISE Cavitation in pump.

PROBABLE REMEDY

Check strainer and clean if necessary.

Check and clean check valve.

Check installation and correct submergence as needed.

Replace worn or damaged parts.

Check that impeller is properly centered and rotates freely.

Free impeller of debris.

Install bypass line.

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

Check engine output; consult engine operation manual.

Check and replace as necessary.

Check engine output.

Reduce pump output.

Adjust discharge valve.

Check & replace often in extreme operating conditions.

Dilute if possible.

Check and replace as required.

Disassemble, check and replace bearing(s) as required..

Open discharge valve fully to increase flow rate, and run engine at maximum governed speed.

Clean valve.

Pumping entrained air.

Pump or drive not securely mounted.

Impeller clogged or damaged.

Dilute if possible.

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

Locate and eliminate source of air bubble.

Secure mounting hardware.

Clean out debris; replace damaged parts.

PAGE D − 2 TROUBLESHOOTING


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.

Excessive tension on drive belt.

PROBABLE REMEDY

Check bearing temperature regularly to monitor any increase.

Check for proper type and level of lubricant.

Check piping installation for proper support.

Align drive properly.

Check belt tension. Adjust as required.

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 preventive maintenance schedule will help assure trouble-free performance and long life from your

Gorman-Rupp pump. For specific questions concerning 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 inspections can indicate problems that can be corrected before system damage or catastrophic failure occurs. 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 inspections should be performed at the intervals shown on the chart below. Critical applications should be inspected more frequently.

TROUBLESHOOTING PAGE D − 3


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 (Back 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

R

C

I

I

I

I

I

I

I

C

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


PUMP MAINTENANCE AND REPAIR − SECTION E

MAINTENANCE AND REPAIR OF THE WEARING PARTS OF THE PUMP WILL MAINTAIN PEAK

OPERATING PERFORMANCE.

Based on 70

STANDARD PERFORMANCE FOR PUMP MODEL PA6E60−6068H

F (21 C) clear water at sea level with minimum suction lift. Since pump installations are seldom identical, your performance may be different due to such factors as viscosity, specific gravity, elevation, temperature, and impeller trim.

Contact the Gorman-Rupp Company to verify performance 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 performance range shown on the curve.

MAINTENANCE & REPAIR PAGE E − 1

OM−05725

PARTS PAGE

ILLUSTRATION

PA SERIES

PAGE E − 2

Figure 1. Pump Model PA6E60−6068H

MAINTENANCE & REPAIR

PA SERIES

PARTS LIST

Pump Model PA6E60−6068H

(From S/N 1393312 Up)

ITEM

NO.

3

4

1

2

5

PART NAME

PUMP END ASSEMBLY

POWER UNIT KIT

BATTERY

PUMP MOUNTING KIT

PRIME AIRE DECAL

NOT SHOWN:

G-R DECAL

CAUTION DECAL

INSTRUCTION TAG

WARNING DECAL

GUARD WARNING STICKER

PART

NUMBER

46133−706

46143−070

SEE OPTIONS

48157−019

38812−078

GR−06

2613FJ

38817−085

2613FE

38816−063

OPTIONAL:

WHEEL KIT

BATTERY

GRP30−266

29331−506

MAT’L

CODE

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

OM−05725

1

1

1

2

2

1

1

QTY

1

1

REF

1

2


OM−05725

ILLUSTRATION

PA SERIES

PAGE E − 4

Figure 2. 46143−070 Power Unit Kit


PA SERIES

24

25

26

27

20

21

22

23

13

14

15

16

17

18

19

9

10

11

12

6

7

8

4

5

ITEM

NO.

1

2

3

28

29

30

31

32

33

34

35

36

NOT SHOWN:

PART NAME

JOHN DEERE ENGINE

BASE/FUEL TANK

LIFTING BAIL KIT

MALE ELBOW

CONNECTOR

HOSE ASSEMBLY

CONTROL PANEL KIT

POS BATTERY CABLE ASSY

NEG BATTERY CABLE ASSY

BATTERY BOX KIT

OIL DRAIN ASSY

FUEL GAUGE

FUEL PICKUP/RETURN

HOSE BARB FITTING

HOSE

HOSE CLAMP

HEX HD CAPSCREW

HEX NUT

LOCK WASHER

FLAT WASHER

PIPE ELBOW

VENTURI

RED COUPLING

CHECK VALVE

HOSE BARB FITTING

CONNECTOR

HOSE BARB FITTING

.50 ID x 60" LG HOSE

PIPE UNION

RED PIPE BUSHING

TEE

MALE ADAPTOR

HOSE ASSEMBLY

ELBOW

HEX ADAPTOR

PRESS RELIEF VALVE

ENGINE STARTUP TAG

WARNING DECAL

INSTRUCTION DECAL

WARNING DECAL

FLOAT SWITCH KIT

PARTS LIST

46143−070 Power Unit Kit

PART

NUMBER

29224−331

41553−008

48274−805

26351−131

S1447

46341−789

48122−544

47311−214

47311−215

42432−003

46342−013

29332−135

29332−145

26523−386

11308G

26518−641

B1007

D10

J10

K10

R16

26817−001

AE1608

26641−092

26523−446

S1598

26523−047

18513−113

AH12

AP1208

U08

26351−065

46341−427

26341−310

26523−188

26662−028

38816−269

38816−203

38818−144

38816−132

48312−980

OM−05725

QTY

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

4

1

1

2

2

2

4

4

4

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

4

1

15991

15079

−−−

15079

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

15991

15991

15991

MAT’L

CODE

−−−

24150

−−−

−−−

−−−

−−−

−−−

−−−

−−−

11999

15079

11999

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−

−−−


OM−05725

ILLUSTRATION

PA SERIES

PAGE E − 6

Figure 3. PA6E60−(SAE 3/11.5) Pump End Assembly


PA SERIES

PARTS LIST

PA6E60−(SAE 3/11.5) Pump End Assembly

ITEM

NO.

PART NAME

7

8

9

5

6

3

4

1

2

10

11

12

13

NOT SHOWN:

PUMP ASSEMBLY

SUCTION SPOOL GASKET

STUD

LOCK WASHER

HEX NUT

SUCTION SPOOL

PIPE PLUG

BLIND FLANGE GASKET

BLIND FLANGE ASSEMBLY

LOCK WASHER

HEX HD CAPSCREW

6" CHECK VALVE KIT

PRIMING CHAMBER KIT

DRIVE ASSEMBLY

NAME PLATE

DRIVE SCREW

STRAINER ASSEMBLY

G-R DECAL

WARNING DECAL

DISCHARGE STICKER

SUCTION STICKER

OIL LEVEL DECAL

OIL LEVEL DECAL

LUBRICATION DECAL

INDICATES PARTS RECOMMENDED FOR STOCK

PART

NUMBER

26837−009

25113−040

C1414

J14

D14

38644−807

P04

25113−034

42111−358

J10

B1008

48274−005

48275−005

44162−162

2613R

BM#04−03

46641−011

GR−06

2613FE

6588BJ

6588AG

2613FP

38816−123

26836−925

MAT’L

CODE

−−−

−−−

15991

15991

15991

10000

15079

−−−

−−−

15991

15991

−−−

−−−

−−−

13990

17000

24150

−−−

−−−

−−−

−−−

−−−

−−−

−−−

OM−05725

QTY

12

1

1

1

1

1

1

12

12

1

1

8

8

4

1

1

1

1

1

1

1

1

1

1


OM−05725

ILLUSTRATION

PA SERIES

PAGE E − 8

Figure 4. Pump Assembly



PARTS LIST

Pump Assembly

ITEM

NO.

1

2

PART NAME

PUMP CASING

IMPELLER

3 MECHANICAL SEAL

4 PIPE PLUG

5 CASING GASKET

6 BACK PLATE

7 BRACKET

8 HEX HD CAPSCREW

9 GLAND

10 LIP SEAL

PART

NUMBER

26835−265

26835−226

MAT’L

CODE

−−−

−−−

26835−806 −−−

QTY

26835−542 −−−

P08 15079

1

5

26835−902 −−−

26835−352 −−−

26835−523 −−−

B0608 15991

1

2

26835−791 −−−

1

1

1

1

1

1

11 LIP SEAL SPRING

12 V-RING

13 LIP SEAL

14 HEX HD CAPSCREW

15 BEARING SHIM

16 BEARING SHIM

17 BALL BEARING

18 PIPE PLUG

19 PUMP FRAME

20 BALL BEARING

21 GREASE FITTING

22 BALL BEARING

23 ENGINE BRACKET

26835−795

26835−583 −−−

26835−804 −−−

23275−017

P08

26835−601

−−−

−−−

15079

−−−

23413−216 −−−

26836−914 −−−

23413−216 −−−

26835−524 −−−

1

1

2

1

1

1

1

1

1

1

B1008 15991 4

26835−973 −−− A/R

26835−974 −−− A/R

24 LIP SEAL

25 IMPELLER SHAFT

26835−804 −−−

26835−457 −−−

26 SHAFT KEY

27 BEARING LOCK NUT

N1020 15990 1

23962−017 −−− 1

28 BEARING LOCK WASHER 23962−517 −−−

29 HEX HD CAPSCREW B1007 15991

1

4

1

1

ITEM

NO.

PART NAME PART

NUMBER

MAT’L

CODE

QTY

30 BREATHER VENT

31 GREASE FITTING

32 MALE CONNECTOR

33 CONNECTOR

34 HOSE END

35 24" LG. HOSE

36 BREATHER VENT

37 REDUCING BUSHING

26717−007

26836−915

26351−059

26351−060

26523−015

18513−302

26717−007

AP1608

−−−

−−−

−−−

−−−

−−−

−−−

−−−

11999

2

2

1

1

4

2

1

1

38 SEAL LUBE RESERVOIR 26835−713 −−−

39 SIGHT GAUGE 26836−887 −−−

40 HEX HD CAPSCREW

41 HEX HD CAPSCREW

42 HEX HD CAPSCREW

B0806

B0807

B0809

15991

1

2

8

15991 12

15991 2

43 HEX HD CAPSCREW

44 CLEAN-OUT COVER

B0808 15991 2

26835−409 −−− 1

45 CLEAN-OUT CVR GASKET 26835−908 −−−

46 HEX HD CAPSCREW B0805 15991

1

4

47 GLAND GASKET

48 IMPELLER WASHER

26835−911

26835−955

49 IMPELLER CAPSCREW B1612

−−−

−−−

17000 1

1

1

50 IMPELLER KEY N1014−1/2 15990 1

51 SOCKET HD SETSCREW 26836−903 −−−

52 SUCTION INSERT 26835−731 −−−

2

1

53 WEAR RING 26835−304 −−− 1

54 SHAFT SLEEVE O-RING 25152−146 −−−

55 IMPELLER SHIM 26835−983 −−−

56 SHAFT SLEEVE

NOT SHOWN:

LUBRICATION TAG

OIL LEVEL DECAL

26835−472 −−−

26836−925

38816−123

−−−

−−−

1

1

1

3

1


A/R = AS REQUIRED


OM−05725

ILLUSTRATION

PA SERIES

Figure 5. 44162−162 Drive Assembly

ITEM

NO.

PART NAME

7

8

5

6

9

3

4

1

2

PAGE E − 10

COUPLING KIT

−BUSHING

−COUPLING ASSEMBLY

LOCKWASHER

SOCKET HEAD CAPSCREW

HEX HEAD CAPSCREW

LOCKWASHER

STUD

HEX NUT

PART

NUMBER

MAT’L

CODE

QTY

48112−006

24131−492

24391−106

21171−536

B0612

B0606

J06

C0606

D06

−−−

−−−

−−−

−−−

15991

15991

15991

15991

15991


8

10

12

2

2

1

8

1

1

PA SERIES

ILLUSTRATION

OM−05725

Figure 6. 48275−005 Priming Chamber Kit

ITEM

NO.

PART NAME

7

8

9

5

6

3

4

1

2

PRIMING CHAMBER ASSEMBLY

1" X 1/2" PIPE BUSHING

1/2" STREET ELBOW

BALL VALVE

STUD

HEX NUT

LOCKWASHER

GASKET

BAFFLE



PART

NUMBER

46112−709

AP1608

RS08

26631−052

C0809

D08

J08

38687−053

31113−011

MAT’L

CODE

−−−

11999

11999

−−−

15991

15991

15991

19060

17000

PAGE E − 11

QTY

4

1

1

4

4

1

1

1

1

OM−05725

ILLUSTRATION

PA SERIES

Figure 7. 46112−709 Priming Chamber Assembly

ITEM

NO.

PART NAME

1

2

3

4

5

6

7

PRIMING VALVE

−ORIFICE BUTTON

HEX HD CAPSCREW

LOCKWASHER

STRAINER ASSY

PRIMING CHAMBER

PRIMING VALVE GASKET


PART

NUMBER

26664−007

26688−021

B0806

J08

46641−222

38343−020

38683−657

MAT’L

CODE

−−−

−−−

15991

15991

17000

10000

19060

QTY

1

REF

8

8

1

1

1

PAGE E − 12 MAINTENANCE & REPAIR

PA SERIES

ILLUSTRATION

OM−05725

Figure 8. 48274−005 Check Valve Kit

ITEM

NO.

PART NAME

1

2

3

4

5

6

7

CHECK VALVE

−FLAPPER

−O-RING

HEX HD CAPSCREW

HEX NUT

LOCKWASHER

GASKET

STUD

FLAT WASHER



PART

NUMBER

26642−126

26688−001

25152−377

B1213

D12

J12

25113−036

C1212

21161−446

MAT’L

CODE

−−−

−−−

−−−

15991

15991

15991

−−−

15991

−−−

QTY

1

2

8

8

8

1

8

1

1

PAGE E − 13


PUMP AND SEAL DISASSEMBLY

AND REASSEMBLY


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

This pump requires little service due to its rugged, minimum-maintenance design. However, if it becomes necessary to inspect or replace the wearing parts, follow these instructions which are keyed to the sectional views (see Figures 1 thru 10) and the accompanying parts lists.

This manual will alert personnel to known procedures 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 personnel to ensure that only safe, established maintenance procedures are used, and that any procedures not addressed in this manual are performed only after establishing that neither personal safety nor pump integrity are compromised by such practices.

Before attempting to service the pump, shut down the engine and disconnect the positive battery cable to ensure that the pump will remain inoperative. Close all valves in the suction and discharge lines.

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

ensure that the pump will remain inoperative.


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



7. Drain the pump.

This pump may be used to handle materials which could cause illness through direct exposure or emitted fumes. Wear adequate protective clothing when working on the pump or piping.

Use lifting and moving equipment in good repair and with adequate capacity to prevent injuries to personnel or damage to equipment. If slings or chains are used to move the pump or components, make sure that the load is balanced; otherwise serious personal injury or death could result. Suction and discharge hoses and piping must be removed from the pump before lifting.



2. Shut down the engine and disconnect the positive battery cable to

PAGE E − 14




Priming Chamber Removal And Disassembly

(Figure 6)

Disconnect the air discharge tubing from the priming chamber assembly (1). Support the priming chamber assembly using a sling and a suitable lifting device. Remove the hardware (6 and 7) and separate the priming chamber assembly, gasket

(8) and baffle (9) from the suction spool (6, Figure

3).

(Figure 7)

Remove the hardware (3 and 4) securing the priming valve (1) to the priming chamber (6). Carefully lift the valve components from the priming chamber. Remove the gasket (7) and clean the mating surfaces.

If the priming valve float is stuck or the strainer (5) is clogged, it can usually be cleaned without further disassembly.

The only serviceable part of the priming valve is the orifice button (2). If liquid continues to bypass through the priming chamber after adjusting the orifice button (see Priming Chamber Reassembly and Installation for adjustment), the button may require replacement. To replace the orifice button, remove one of the e-clips" from the pivot pin closest to the orifice button and remove the pivot pin.

This will allow the linkage to be raised high enough to access the orifice button.

Remove the hex nut and lockwasher securing the orifice button to the linkage bar and unscrew the orifice button from the linkage bar.

Discharge Check Valve Removal and

Disassembly

(Figure 3)

Remove the discharge piping. Support the discharge check valve assembly (12) using a sling and a suitable lifting device. Remove the attaching hardware (not shown) and separate the discharge check valve assembly and gasket from the pump assembly (1).

The flapper and cover O-ring are the only serviceable parts of the check valve. If the flapper requires replacement, remove the hardware securing the

MAINTENANCE & REPAIR cover and O-ring. Separate the valve cover and remove the flapper.

Pump Casing and Wear Ring Removal

(Figure 4)

Before attempting to remove the pump casing, remove the lower most pipe plug (4) and drain any liquid from the pump casing. Clean and reinstall the pipe plug.

If the impeller (2) is to be removed, it is recommended that the impeller screw (49) be loosened before removing the pump casing (1). With the discharge check valve removed, insert a soft metal bar or rod through the discharge port to block impeller rotation.

Loosen the setscrews (51) in the tapped holes in the impeller washer (48). It may be necessary to apply heat to the setscrews in order to loosen them.

The impeller screw is secured with Loctite Threadlocker No. 262". To remove the screw, apply heat directly to the head of the screw. While the screw is hot, use a breaker bar and socket to apply steady, even torque to break the screw loose. Apply additional heat as required.

NOTE

When loosening the impeller screw, use a breaker bar with an extension, if necessary, but do not use an impact wrench . Make sure the socket is in excellent condition to avoid stripping or damage to the screw.

After the impeller screw breaks loose, remove the metal bar or rod blocking impeller rotation.

Support the pump casing (1) using a suitable hoist and sling. Disengage the hardware (41, 42 and

43). Reinstall two of the capscrews in the tapped holes in the back plate (6) and tighten the screws in an alternating pattern to jack the pump casing free from the back plate. Use caution to ensure that the pump casing does not fall onto and damage the impeller.

Inspect the wear ring (53) for excessive wear or scoring. The wear ring is a press fit into the pump casing. If replacement is required, use a drill bit

PAGE E − 15

OM−05725 PA SERIES slightly smalled in diameter than the thickness of the wear ring to drill through the imeller horizontally at a number of locations. Use a chisel to complete the cuts and remove the wear ring.

The suction insert (52) is a press fit into the pump casing and should not require replacement.

If no further disassembly is required, see Pump

Casing and Wear Ring Installation .

Impeller Removal

(Figure 4)

Before attempting to remove the impeller, remove the pipe plug from the seal oil reservoir (38) and drain the seal lubricant into a clean container. Inspect the oil for water, dirt, or cloudy condition which could indicate seal failure.

With the reservoir drained, disconnect the hoses

(35) from the back plate (6) and drain any residual lubricant from the hoses and back plate. This will prevent the oil from escaping when the impeller is removed.

NOTE

When removing the impeller as described below, use extreme caution not to damage the impeller, shaft or bearings.

Remove the impeller capscrew and washer. Install two wedges, 180 apart, along the impeller vanes between the impeller and back plate. Use a pair of hammers to tap both wedges at the same time to force the impeller off the shaft. Retain the impeller key (50).

Seal Removal

(Figures 4 And 9)

Remove the seal spring. Slide the rotating portion of the seal (consisting of the shaft sleeve [56], bellows, retainer, rotating element and shaft sleeve Oring [54]) off the shaft as a unit.

Apply oil to the sleeve and work it up under the rubber bellows. Slide the bellows and retainer off the sleeve. Remove the shaft sleeve O-ring from the groove in the sleeve.

PAGE E − 16

It is recommended that the lip seal (10), spring (11) and V-ring (12) be replaced whenever the mechanical seal is replaced. Remove the hardware (40) and slide the back plate (6), gland (9), lip seal and stationary seal seat off the shaft as a unit.

Remove the capscrews (8) and separate the gland

(9), gasket (47), lip seal and spring from the back plate. Press the lip seal and spring out of the gland.

Press the seal stationary seat out of the back plate from the back side.

Remove the V-ring.

If no further disassembly is required, refer to Seal

Installation .

Separating Pump Frame And Drive Assembly

From Engine

(Figure 5)

Further disassembly requires separating the pump frame and drive assembly from the engine. Support the pump frame (19, Figure 4) using a suitable hoist and sling.

Disengage the hardware (6, 7, 8 and 9) securing the engine bracket (23, Figure 4) to the engine bellhousing. Separate the pump frame and drive assembly from the engine by pulling the pump frame straight away from the engine.

As the assemblies separate, the flexible portion of the coupling assembly (3) will remain on the shaft.

To remove the coupling from the shaft, unscrew the two allen head setscrews from the bushing (2).

Screw one of the setscrews into the puller hole on the circumference of the bushing. As the coupling and bushing separate, remove the bushing, and slide the coupling off the shaft. Remove the shaft key (26, Figure 4).

It is not necessary to remove the outer ring of the coupling from the engine flywheel unless the coupling must be replaced. To remove the ring, disengage the hardware (4 and 5) securing it to the flywheel.

Move the pump frame to a clean, well equipped shop area for further disassembly.



Pump Shaft and Bearing Removal and

Disassembly

(Figure 4)

When the pump is properly operated and maintained, the pump frame (19) should not require disassembly. Disassemble the shaft and bearings only when there is evidence of wear or damage.

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

Use a press and a suitably sized sleeve or dowel to press the bearing (17) out of the frame.

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

NOTE

The bearings in this pump are grease-lubricated.

No provisions are made for draining the lubricant for disassembly. Position a drip pan under the frame before proceeding with shaft and bearing removal.

When removing the bearing, never press or hit against the inner race, balls, or ball cage. Press only on the outer race.

Bearing Cleaning And Inspection

Clean the frame, shaft and all component parts (except the bearings) with a soft cloth soaked in cleaning solvent. Inspect the parts for wear or damage and replace as necessary.

Disengage the capscrews (14) and remove the bracket (7), oil seal (13) and bearing shims (15 and

16). Press the oil seal from the bracket.

Disengage the capscrews (29) and remove the engine bracket (23) and oil seal (24). Press the oil seal from the bracket.

Place a block of wood against the impeller end of the shaft and tap the shaft (25) and assembled bearings (20 and 22) out of the pump frame.

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

Bearing Cleaning And Inspection .

The tolerances for the bearings (20 and 22) provide a tight press fit onto the shaft and a snug slip fit into the frame. Tolerances for the bearing (17) provide a tight press fit into the frame and a snug slip fit onto the shaft. Replace the bearings, shaft, or frame if the proper bearing fit is not achieved.

If bearing replacement is required, remove the bearing lock nut (27) and washer (28). Use a bearing puller or a press to remove the bearings (20 and 22) from the shaft.


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

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 greatly shorten bearing life. Do not spin dry bearings. This may scratch the balls or races and cause premature bearing failure.

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

PAGE E − 17


Pump Shaft And Bearing Reassembly And

Installation

(Figure 4)

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 bearings are removed.

The bearings (20 and 22) may be heated to ease installation. An induction heater, hot oil bath, electric oven, or hot plate may be used to heat the bearings. Bearings should never be heated with a direct flame or directly on a hot plate.

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

Install the bearing lock washer (28) and screw the bearing locknut (27) onto the shaft until tight. Align one of the slots in the locknut with one of the tabs on the lockwasher, and bend the tab on the lockwasher into the slot on the locknut.

After the bearings are installed on the shaft and have been allowed to cool, pack the bearings by hand with a good grade of No. 0 lithium base grease. Fill the bearing cavity approximately 1/3 full

(to the bottom of the shaft) with No. 0 lithium base grease.

Use an arbor (or hydraulic) press and a suitably sized sleeve to press the bearing (17) into the frame (19) until fully seated against the bore shoulder. Pack the bearing by hand with a good grade of

No. 0 lithium base grease.

Slide the shaft and assembled bearings (20 and

22) into the frame until the shaft shoulder seats squarely against the inner race of the bearing (17).

Use caution when handling hot bearings to prevent burns.

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 thoroughly filtered.

Heat the bearings (20 and 22) to a uniform temperature no higher than 250 F (120 C). Slide the bearings onto the shaft, one at a time, until fully seated. This should be done quickly, in one continuous motion, to prevent the bearing from cooling and sticking on the shaft.

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

When installing the bearings onto the

PAGE E − 18

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

Install the same thickness of shims (15 and 16) as previously removed, and secure the bracket (7) to the frame with the previously removed hardware

(14). Shaft endplay should be between .017 and

.021 inch (0,43 − 0,53 mm). Add or remove shims

(15 and 16) as required to obtain the correct endplay.

Lubricate the shaft in the area of the oil seal (13) and use a suitably sized sleeve to press the oil seal into the bracket (7) with the lip positioned as shown in Figure 4. Use caution not to cut or roll the lip of the oil seal during installation.

Secure the engine bracket (23) to the frame with the previously removed hardware (29). Lubricate the shaft in the area of the oil seal (24) and use a suitably sized sleeve to press the oil seal into the engine bracket. Use caution not to cut or roll the lip of the oil seal during installation.



Lubricate the bearings as indicated in LUBRICA-

TION .

Drive Assembly Installation

(Figure 5)

Install the shaft key (26, Figure 4) in the shaft keyway. Position the flexible portion of the coupling assembly (3) on the shaft as shown in Figure 5.

Align the keyway in the bushing (2) with the shaft key, and slide it onto the shaft to the dimension shown in Figure 5. Rotate the flexible portion of the coupling until the tapped holes for the two setscrews align with those in the bushing, and install the setscrews.

inside the outer ring attached to the engine flywheel.

NOTE

To ease installation, lightly lubricate the rubber portion of the coupling with a non-petroleum based lubricant such as vegetable oil or glycerin, or a silicon-based lubricant such as WD40" or equivalent.

Do not use petroleum-based lubricants, or any other substance which may soften or otherwise damage the rubber.

Secure the engine bracket to the engine bellhousing with the hardware (6, 7, 8 and 9).

Seal Reassembly and Installation

(Figures 4 and 9)

Clean the bore of the back plate (6) and shaft (23) with a cloth soaked in fresh cleaning solvent.

Make certain that the flexible portion of the coupling is mounted as shown in Figure 5.

This is critical.

If the coupling is not properly positioned on the shaft, the coupling parts may not fully engage, or a pre-load condition can cause premature bearing failure.

The end of the shaft must prodrude 0.44

inch (11,2 mm) from the face of the bushing.

This will allow the two portions of the coupling to fully engage when the engine bracket is secured to the engine bellhousing without pre-loading the bearings.

With the flexible portion of the coupling and the bushing properly positioned on the shaft, tighten the two setscrews in an alternating sequence until the bushing and coupling are fully secured. Torque the setscrews to 35.8 ft. lbs. (430 in. lbs. or 4,9 m.

kg.).

If the complete coupling assembly is being replaced, apply ‘Loctite Retaining Compound No.

242’ or equivalent to the threads of the hardware (4 and 5), and secure the outer ring of the coupling to the engine flywheel by torquing the hardware to 45 ft. lbs. (540 in. lbs. or 6,2 m. kg.).

Using a suitable lifting device, position the pump frame so the flexible portion of the coupling seats


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

Lay the gland (9) on a flat surface with the smaller diameter bore facing up. Install the spring (11) in the lip seal (10) and press the lip seal into the gland with the lip positioned as shown in Figure 4.

Install the gasket (47) and secure the gland to the back plate with the hardware (8).

The seal is not normally reused because wear patterns on the finished faces cannot be realigned during reassembly. This could result in premature failure. If necessary to reuse an old seal in an emergency, 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.

PAGE E − 19


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 leakage. Clean and polish the shaft sleeve, or replace 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 .

O-RING

STATIONARY

SEAT

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 bellows and stationary seat O-ring 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 follows (see Figure 9).

RETAINER

SPRING

IMPELLER

SHAFT

KEY

SHAFT

SLEEVE

O-RING

IMPELLER

SHAFT

SHAFT

SLEEVE

ROTATING

ELEMENT

BELLOWS

Figure 9. Seal Assembly

Lubricate the stationary seat O-ring with water or light oil. Position the back plate (6) on a level surface with the impeller side up and press the stationary seat into the back plate until it seats squarely against the bore shoulder.

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

Install a new shaft sleeve O-ring (54) in the groove on the inside of the sleeve (56) and lubricate it with light oil. Slide the V-ring (10) onto the sleeve with the lip toward the impeller end of the sleeve, then slide the sleeve onto the shaft until it is fully seated against the shaft shoulder.

Carefully position the assembled back plate, gland and stationary seat over the shaft and secure the back plate to the bracket (7) with the previously removed hardware (40). Be careful not to damage the stationary element on the shaft keyway. Make sure the lip on the V-ring seats against the lip seal

(10).

Lubricate the O.D. of the seal sleeve with a small amount of light oil and slide the rotating subas-

PAGE E − 20 MAINTENANCE & REPAIR

PA SERIES OM−05725 sembly (consisting of rotating element, bellows and retainer) onto the sleeve until the sealing faces contact.

Install the seal spring. Lubricate the seal as indicated in LUBRICATION after the impeller and remaining pump components are installed.

Impeller Installation

(Figures 4 and 10)

Inspect the impeller, and replace it if cracked or badly worn.

Install the key (50) and position the impeller on the shaft. See Figure 10, and use a section of pipe, washers and a long, 1"−8 UNC capscrew to press the impeller onto the shaft until fully seated ( do not use the impeller lock screw ). Make sure the spring holder seats squarely inside the seal spring.

When installing the impeller, the capscrew must be long enough to enter the shaft at least eight full threads. Otherwise, damage to the shaft threads may occur.

Key

Pipe

Long

Capscrew pump casing as described below, then proceed as follows to install the impeller washer (48) and lock screw.

NOTE

To ensure proper torquing of the impeller lock screw, make sure the tapped hole in the impeller, the impeller washer and the impeller lock screw are clean and dry (it is not necessary to remove the protective coating from the impeller lock screw). It is recommended that a new impeller lock screw be used whenever the impeller is removed. To ensure the proper lock screw material and specifications, use only genuine Gorman-Rupp replacement parts.

With the pump casing installed, coat the threads of a new impeller lock screw with Loctite Threadlocker No. 262" or equivalent compound, and install the impeller washer and lock screw. Immobilize the impeller by inserting a soft metal bar or rod through the discharge opening as described in Pump Casing And Wear Ring Removal . With the impeller immobilized, torque the impeller lock screw to 260 ft. lbs. (35,9 m. kg.).

Apply Loctite Threadlocker No. 242" or equivalent compound to the threads of the setscrews (51) and install the setscrews in the tapped holes in the impeller washer. Tighten the setscrews against the impeller to secure the impeller lock screw.

Wear Ring And Pump Casing Installation

(Figure 4)

If the wear ring (53) was removed, chill the replacement wear ring by refrigeration and press it into the casing bore until fully seated.

Shaft

Washers

Figure 10. Installing Impeller

The pump casing must be installed in order to properly torque the impeller lock screw (49). After the impeller clearance has been set, install the


The wear ring must seat squarely in the pump casing; otherwise binding and/or excessive wear will occur.

Install the casing gasket (5). Use a suitable hoist and sling to position the casing over the impeller, and secure it to the back plate with the hardware

(41, 42 and 43).

PAGE E − 21


Check the clearance between the impeller and the wear ring for scraping or binding and correct any before putting the pump back into service.

Discharge Check Valve Assembly And

Installation

(Figure 8)

If the discharge check valve (1) was disassembled to replace the flapper or cover O-ring, position the flapper in the valve body and check to ensure free movement.

Install the valve cover O-ring and secure the cover to the body with the previously removed hardware.

Apply a small amount of light grease to the discharge flange gasket (5) to hold it in place and position it against the pump casing flange. Support the discharge check valve using a sling and a suitable lifting device and use the previously removed hardware (2, 3, 4 and 7) to secure the discharge check valve assembly and gasket to the pump assembly.

Priming Chamber Assembly And Installation

(Figure 7)

Clean and inspect the components of the priming valve (1). Inspect the linkage and ensure the orifice button (2) squarely engages the valve seat. Replace the orifice button if required (see Priming

Chamber Removal and Disassembly for orifice button removal).

If the orifice button was removed, screw the new orifice button into the linkage bar until fully seated.

Align the hole in the linkage bar with the holes in the bracket and reinstall the pivot pin. Secure the pivot pin with the previously removed e-clip".

Adjust the orifice button seating as necessary by screwing the orifice button into or out of the linkage bar. Proper adjustment is achieved when the orifice button fully seats against the orifice before the linkage bar on the float bottoms against the threads on the orifice button. When adjustment is complete, install and tighten the lock washer and hex nut securing the orifice button.

Install the strainer (5) and priming valve gasket (7).

PAGE E − 22

Lower the float into the priming chamber (6) and secure the priming valve with the previously removed hardware (3 and 4).

(Figure 6)

Install the baffle (9) and gasket (8) and use a sling and suitable lifting device to position the priming chamber assembly on the hopper spool (6, Figure

2). Secure the priming chamber assembly with the hardware (6 and 7).

Reconnect the suction piping to the hopper spool and the air discharge tubing to the priming chamber assembly.

LUBRICATION

Seal Assembly

(Figure 4)

Check the oil level regularly at the sight gauge on the seal oil reservoir and maintain it at the top of the gauge. When lubrication is required, remove the breather on top of the reservoir and add synthetic oil of an ISO viscosity grade 22 or lower.

Under normal conditions, drain the seal cavity and reservoir every 1000 hours or once each year, whichever comes first, and refill with clean oil.

Change the oil more frequently if the pump is operated continuously or installed in an environment with rapid temperature change.

When adding oil after draining, or if the oil in the reservoir has dropped below the sight gauge, air must be purged out of the upper circulation hose to prevent vapor locking. To accomplish this, disconnect the upper hose from the oil reservoir and hold the hose below its point of entry in the seal cavity.

Fill the reservoir until the oil begins to run from the hose, then reconnect the hose to the oil reservoir.

Bearings

(Figure 4)

The bearings were fully lubricated when shipped from the factory. Lubricate the bearings after every

1,500 hours of service. To lubricate the bearings, remove the plastic covers from the grease fittings

(21 and 31) and be sure the fitting and the end of the grease gun are clean.

Use only a hand-operated grease gun and add extreme pressure grease through each grease fitting


PA SERIES OM−05725 as indicated in the table below. Do not over-lubricate. Excess grease will be forced through the bearings and into the bearing cavity. If too much grease is retained in the bearing cavity, the bearings can over-heat, resulting in premature bearing failure.

Table 1. Bearing Lubrication

Bearing Lubrication Instructions

(For Ball or Roller Bearings)

Shell Alvania EP2 or Mobil Mobilux EP2 or Equal

Duty:

Period:

Normal (8 hr/day)

4-8 months

Heavy (24 hr/day)

2-4 months

Use 1-2 cubic inches (5-10 pumps) per fitting from a hand-operated grease gun.

Engine

Consult the literature supplied with the engine, or contact your local engine representative.


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

Gorman-Rupp Pumps PA6E60-6068H 1393312 and up User Manual

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

PA SERIES PUMP

MODEL

PA6E60−6068H

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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GORMAN-RUPP PUMPS

GRP33-06A

GORMAN-RUPP PUMPS

PA12A60-B-6068T-ESP

GORMAN-RUPP PUMPS

PA4A60C-4024T-ESP

GORMAN-RUPP PUMPS

PA6F60-4045D

GORMAN-RUPP PUMPS

PA6C60-F4L

GORMAN-RUPP PUMPS

04B3-F4L

GORMAN-RUPP PUMPS

PA4C60-4045T