GORMAN-RUPP PUMPS 60 Series Guida all'applicazione

OM−01420−OP04

July 15, 1998

THE GORMAN-RUPP COMPANY MANSFIELD, OHIO

GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A.

Copyright by the Gorman-Rupp Company

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

60 SERIES PUMPS

MODEL

64A2−G

The engine exhaust from this

product contains chemicals

known to the State of California to

cause cancer, birth defects or

other reproductive harm.

TABLE OF CONTENTS

INTRODUCTION PAGE I − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

WARNINGS − SECTION A PAGE A − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

INSTALLATION − SECTION B PAGE B − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Dimensions PAGE B − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PREINSTALLATION INSPECTION PAGE B − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

POSITIONING PUMP PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lifting PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SUCTION AND DISCHARGE PIPING PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Materials PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Line Configuration PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connections to Pump PAGE B − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gauges PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SUCTION LINES PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fittings PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Strainers PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sealing PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Lines In Sumps PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Line Positioning PAGE B − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DISCHARGE LINES PAGE B − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Siphoning PAGE B − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Valves PAGE B − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ALIGNMENT PAGE B − 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

PRIMING PAGE C − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hand-Operated Priming Pump PAGE C − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STARTING PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OPERATION PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Leakage PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Liquid Temperature And Overheating PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Strainer Check PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pump Vacuum Check PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STOPPING PAGE C − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cold Weather Preservation PAGE C − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GEARBOX TEMPERATURE CHECK PAGE C − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

PREVENTIVE MAINTENANCE PAGE D − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

PERFORMANCE CURVE PAGE E − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PARTS LISTS:

Pump Model PAGE E − 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TABLE OF CONTENTS

(continued)

Pump End Assy PAGE E − 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gearbox Assy PAGE E − 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PUMP AND SEAL DISASSEMBLY AND REASSEMBLY PAGE E − 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Head And Wear Ring Removal PAGE E − 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Impeller Removal PAGE E − 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seal Removal And Disassembly PAGE E − 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PUMP AND SEAL REASSEMBLY PAGE E − 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seal Reassembly And Installation PAGE E − 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Impeller Installation PAGE E − 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Suction Head And Wear Ring Installation PAGE E − 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Final Pump Reassembly PAGE E − 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GEARBOX DISASSEMBLY PAGE E − 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gearbox Removal PAGE E − 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gearbox Disassembly PAGE E − 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GEARBOX REASSEMBLY PAGE E − 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bearing Cleaning And Inspection PAGE E − 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gearbox Reassembly PAGE E − 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gearbox Installation PAGE E − 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LUBRICATION PAGE E − 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seal Assembly PAGE E − 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gearbox PAGE E − 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Source PAGE E − 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

60 SERIES OM−01420

PAGE I − 1INTRODUCTION

INTRODUCTION

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 60 Series, semi-open impeller, cen-

trifugal model with a straight-in suction, without a

suction check valve. The pump is designed for dis-

tribution of clean liquids that do not contain large

entrained solids. The basic material of construc-

tion for wetted parts is gray iron, with bronze wear-

ing parts.

The pump is close-coupled to a 550 RPM gearbox

speed increaser with a 4.82:1 ratio. Power is trans-

mitted to the gearbox through a universal shaft as-

sembly designed to be connected to a mobile PTO

power source.

If there are any questions regarding the pump or its application which are not covered in this manual or in

other literature accompanying this unit, please contact your Gorman-Rupp distributor, or write:

The Gorman-Rupp Company or Gorman-Rupp of Canada Limited

P.O. Box 1217 70 Burwell Road

Mansfield, Ohio 44901−1217 St. Thomas, Ontario N5P 3R7

For information or technical assistance on the power source, contact the power source manufacturer’s local

dealer or representative.

The following are used to alert maintenance 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 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.

NOTE

Instructions to aid in installation, operation,and

maintenance, or which clarify a procedure.

60 SERIES OM−01420

PAGE A − 1SAFETY

SAFETY − SECTION A

This information applies to 60 Series

PTO Driven pumps. Refer to the manual

accompanying the power source before

attempting to begin operation.

Because pump installations are seldom

identical, this manual cannot possibly

provide detailed instructions and pre-

cautions for each specific application.

Therefore, it is the owner/installer’s re-

sponsibility to ensure that applications

not addressed in this manual are per-

formed only after establishing that nei-

ther operator safety nor pump integrity

are compromised by the installation.

Before attempting to open or service the

pump:

1. Familiarize yourself with this man-

ual.

2. Disconnect the power source or

take other precautions to ensure

that the pump will remain inopera-

tive.

3. Allow the pump to completely cool

if overheated.

4. Check the temperature before

opening any covers, plates, or

plugs.

5. Close the suction and discharge

valves.

6. Vent the pump slowly and cau-

tiously.

7. Drain the pump.

This pump is designed for high pres-

sure distribution of clean liquids that do

not contain large entrained solids. Do

not attempt to pump volatile, corrosive,

or flammable materials, or any liquids

which may damage the pump or endan-

ger personnel as a result of pump fail-

ure.

After the pump has been positioned,

make certain that the pump and all pip-

ing or hose connections are tight, prop-

erly supported and secure before oper-

ation.

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 remove plates, covers, gauges,

pipe plugs, or fittings from an over-

heated pump. Vapor pressure within the

pump can cause parts being disen-

gaged to be ejected with great force. Al-

low the pump to cool before servicing.

Do not operate the pump without the

guard(s) in place over the rotating parts.

Use caution when working near the

power coupling end of the power take-

off shaft. Exposed rotating parts can

catch clothing, fingers, or tools, causing

severe injury to personnel.

60 SERIES

OM−01420

PAGE A − 2 SAFETY

The gearbox provided on this pump is

designed for operation at a maximum in-

put speed of 550 RPM. If operated at a

higher RPM, pump or gearbox compo-

nents may be destroyed.

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.

OM−0142060 SERIES

PAGE B − 1INSTALLATION

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.) Since the pump is fitted with a Gor-

man-Rupp double grease lubricated seal, the

maximum incoming pressure must be reduced to

10 p.s.i.

For further assistance, contact your Gorman-Rupp

distributor or the Gorman-Rupp Company.

Pump Dimensions

See Figure 1 for the approximate physical dimen-

sions of this pump.

OUTLINE DRAWING

14.88

[378,0]

28.19

[716.0]

4" N.P.T. SUCTION

4" N.P.T.DISCHARGE

[355,6]

17.12

[434,9]

APPROX.

7.63

[193,8]

6.75

[171,5]

35.88

[911,4]

17.94

[455,7]

DIMENSIONS: INCHES

[MILLIMETERS]

A MIN.

8.19

[208,0]

18.19

[462,0]

A MAX.

49.56

[1258.8]

HEIGHT AT MAX. LENGTH

HEIGHT AT MIN. LENGTH

15MAX. RECOMMENDED

OPERATING ANGLE

10.25

[260,35] APPROX.

39.31

[998,5] 1 3/8 SPLINE

7.44

[189,0]

11.81

[300,0]

9.13

[231,9]

Figure 1. Pump Model 64A2−G

PREINSTALLATION INSPECTION

The pump assembly was inspected and tested be-

fore shipment from the factory. Before installation,

inspect the pump for damage which may have oc-

curred during shipment. Check as follows:

a. Inspect the pump 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-

OM−01420 60 SERIES

PAGE B − 2 INSTALLATION

ing, check for loose hardware at mating sur-

faces.

c. Carefully read all tags, decals, and markings

on the pump assembly, and follow the instruc-

tions indicated.

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.

POSITIONING PUMP

Lifting

Use lifting equipment with a capacity of at least

2150 pounds (975 kg). This pump weighs ap-

proximately 429 pounds (195 kg), not including

the weight of accessories and suction and dis-

charge piping. Customer installed equipment such

as suction and discharge piping must be removed

before attempting to lift.

The pump assembly can be seriously

damaged if the cables or chains 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 mount-

ing is essential for proper operation.

If the pump has been mounted on a movable base,

make certain the base is stationary by setting the

brake and blocking the wheels before attempting

to operate the pump.

To ensure sufficient lubrication and fuel supply to

the engine, do not position the pump and engine

more than 15off horizontal for continuous opera-

tion. The pump and engine may be positioned up

to 30off horizontal for intermittent operation

only; however, the engine manufacturer should be

consulted for continuous operation at angles

greater than 15.

SUCTION AND DISCHARGE PIPING

Pump performance is adversely effected by in-

creased suction lift, discharge elevation, and fric-

tion losses. See the performance curve and oper-

ating range shown on Page E-1 or contact the fac-

tory to be sure your overall application allows the

pump to operate within the safe operation range.

Materials

Either pipe or hose maybe used for suction and

discharge lines; however, the materials must be

compatible with the liquid being pumped. If hose is

used in suction lines, it must be the rigid-wall, rein-

forced type to prevent collapse under suction. Us-

ing piping couplings in suction lines is not recom-

mended.

Line Configuration

Keep suction and discharge lines as straight as

possible to minimize friction losses. Make mini-

mum use of elbows and fittings, which substan-

tially increase friction loss. If elbows are necessary,

use the long-radius type to minimize friction loss.

Connections to Pump

Before tightening a connecting flange, align it ex-

actly with the pump port. Never pull a pipe line into

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

OM−0142060 SERIES

PAGE B − 3INSTALLATION

lines are used, they should have adequate support

to secure them when filled with liquid and under

pressure.

Gauges

Most pumps are drilled and tapped for installing

discharge pressure and vacuum suction gauges. If

these gauges are desired for pumps that are not

tapped, drill and tap the suction and discharge

lines not less than 18 inches (457,2 mm) from the

suction and discharge ports and install the lines.

Installation closer to the pump may result in erratic

readings.

SUCTION LINES

To avoid air pockets which could affect pump prim-

ing, the suction line must be as short and direct as

possible. When operation involves a suction lift, the

line must always slope upward to the pump from

the source of the liquid being pumped; if the line

slopes down to the pump at any point along the

suction run, air pockets will be created.

Fittings

Suction lines should be the same size as the pump

inlet. If reducers are used in suction lines, they

should be the eccentric type, and should be in-

stalled with the flat part of the reducers uppermost

to avoid creating air pockets. Valves are not nor-

mally used in suction lines, but if a valve is used,

install it with the stem horizontal to avoid air pock-

ets.

Strainers

If a strainer is furnished with the pump, be certain

to use it; any spherical solids which pass through a

strainer furnished with the pump will also pass

through the pump itself.

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 3/8 inch (9,7

mm) diameter spherical solids.

Sealing

Since even a slight leak will affect priming, head,

and capacity, especially when operating with a

high suction lift, all connections in the suction line

should be sealed with pipe dope to ensure an air-

tight seal. Follow the sealant manufacturer’s rec-

ommendations when selecting and applying the

pipe dope. The pipe dope should be compatible

with the liquid being pumped.

Suction Lines In Sumps

If a single suction line is installed in a sump, it

should be positioned away from the wall of the

sump at a distance equal to 1 1/2 times the diame-

ter of the suction line.

If there is a liquid flow from an open pipe into the

sump, the flow should be kept away from the suc-

tion inlet because the inflow will carry air down into

the sump, and air entering the suction line will re-

duce pump efficiency.

If it is necessary to position inflow close to the suc-

tion inlet, install a baffle between the inflow and the

suction inlet at a distance 1 1/2 times the diameter

of the suction pipe. The baffle will allow entrained

air to escape from the liquid before it is drawn into

the suction inlet.

If two suction lines are installed in a single sump,

the flow paths may interact, reducing the efficiency

of one or both pumps. To avoid this, position the

suction inlets so that they are separated by a dis-

tance equal to at least 3 times the diameter of the

suction pipe.

Suction Line Positioning

The depth of submergence of the suction line is

critical to efficient pump operation. Figure 2 shows

recommended minimum submergence vs. veloc-

ity.

NOTE

The pipe submergence required may be reduced

by installing a standard pipe increaser fitting at the

end of the suction line. The larger opening size will

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