GORMAN-RUPP SUPER T SERIES Application guide

OM‐05595‐02

December 31, 2019

GORMAN‐RUPP PUMPS

www.grpumps.com

2019 Gorman‐Rupp Pumps Printed in U.S.A.

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

SUPER T SERIES PUMPS

MODELS

T4A60S-E7.5 3P T4A60S-E20 3P

INCLUDING /WW

Gorman‐Rupp pump online at

www.grpumps.com

Valid serial number and e‐mail address required.

RECORD YOUR PUMP MODEL AND SERIAL NUMBER

Please record your pump model and serial number in the

spaces provided below. Your Gorman‐Rupp distributor

needs this information when you require parts or service.

Pump Model:

Serial Number:

TABLE OF CONTENTS

INTRODUCTION PAGE I - 1.................................................

SAFETY - SECTION A PAGE A - 1...........................................

INSTALLATION - SECTION B PAGE B - 1....................................

Pump Dimensions PAGE B - 1.....................................................

PREINSTALLATION INSPECTION PAGE B - 2............................................

POSITIONING PUMP PAGE B - 3.......................................................

Lifting PAGE B - 3.................................................................

Mounting PAGE B - 3.............................................................

Clearance PAGE B - 3.............................................................

SUCTION AND DISCHARGE PIPING PAGE B - 3.........................................

Materials PAGE B - 3..............................................................

Line Configuration PAGE B - 3......................................................

Connections to Pump PAGE B - 4..................................................

Gauges PAGE B - 4...............................................................

SUCTION LINES PAGE B - 4...........................................................

Fittings PAGE B - 4...............................................................

Strainers PAGE B - 4..............................................................

Sealing PAGE B - 4...............................................................

Suction Lines In Sumps PAGE B - 4.................................................

Suction Line Positioning PAGE B - 5................................................

DISCHARGE LINES PAGE B - 5........................................................

Siphoning PAGE B - 5.............................................................

Valves PAGE B - 5................................................................

Bypass Lines PAGE B - 6..........................................................

AUTOMATIC AIR RELEASE VALVE PAGE B - 6...........................................

Theory of Operation PAGE B - 6....................................................

Air Release Valve Installation PAGE B - 7............................................

ELECTRICAL CONNECTIONS PAGE B - 7...............................................

OPERATION - SECTION C PAGE C - 1......................................

PRIMING PAGE C - 1.................................................................

STARTING PAGE C - 1................................................................

Rotation PAGE C - 1..............................................................

OPERATION PAGE C - 2..............................................................

Lines With a Bypass PAGE C - 2....................................................

Lines Without a Bypass PAGE C - 2.................................................

Leakage PAGE C - 2..............................................................

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

Strainer Check PAGE C - 3.........................................................

Clog Removal and Wear Plate Clearance PAGE C - 3.................................

Pump Vacuum Check PAGE C - 3..................................................

STOPPING PAGE C - 3................................................................

Cold Weather Preservation PAGE C - 4..............................................

BEARING TEMPERATURE CHECK PAGE C - 4..........................................

TABLE OF CONTENTS

(continued)

TROUBLESHOOTING - SECTION D PAGE D - 1..............................

PREVENTIVE MAINTENANCE PAGE D - 3...........................................

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

PERFORMANCE CURVE PAGE E - 1...................................................

PARTS LISTS:

Pump Models PAGE E - 3.........................................................

Repair Rotating Assemblies PAGE E - 5.............................................

PUMP AND SEAL DISASSEMBLY AND REASSEMBLY PAGE E - 6.........................

Back Cover And Wear Plate Removal PAGE E - 7.....................................

Suction Check Valve Removal PAGE E - 7...........................................

Rotating Assembly Removal PAGE E - 7.............................................

Impeller Removal PAGE E - 8......................................................

Seal Removal PAGE E - 8..........................................................

Shaft and Bearing Removal and Disassembly PAGE E - 8.............................

Shaft and Bearing Reassembly and Installation PAGE E - 9............................

Seal Installation PAGE E - 10........................................................

Impeller Installation PAGE E - 13.....................................................

Rotating Assembly Installation PAGE E - 13...........................................

Suction Check Valve Installation PAGE E - 13.........................................

Back Cover Installation and Adjustment PAGE E - 14...................................

PRESSURE RELIEF VALVE MAINTENANCE PAGE E - 15..................................

Final Pump Assembly PAGE E - 15..................................................

LUBRICATION PAGE E - 15.............................................................

Seal Assembly PAGE E - 15.........................................................

Bearings PAGE E - 15..............................................................

Motor PAGE E - 15.................................................................

SUPER T SERIES OM-05595

PAGE I - 1INTRODUCTION

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 Super T Series, semi‐open impeller,

self‐priming centrifugal model with a suction check

valve, close‐coupled to an electric motor. The

pump is designed for handling liquids containing

entrained solids and slurries. The basic material of

construction is gray iron, with ductile iron impeller

and steel wearing parts.

This manual will alert personnel to known proce

dures which require special attention, to those

which could damage equipment, and to those

which could be dangerous to personnel. However,

this manual cannot possibly anticipate and provide

detailed precautions for every situation that might

occur during maintenance of the unit. Therefore, it

is the responsibility of the owner/maintenance per

sonnel to ensure that only safe, established main

tenance procedures are used, and that any proce

dures not addressed in this manual are performed

only after establishing that neither personal safety

nor pump integrity are compromised by such prac

tices.

If there are any questions regarding the pump or

its application which are not covered in this man

ual or in other literature accompanying this unit,

please contact your Gorman‐Rupp distributor, or:

The Gorman‐Rupp Company

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

For information or technical assistance on the mo

tor, contact the motor manufacturer's local dealer

or representative.

The following are used to alert maintenance per

sonnel to procedures which require special atten

tion, to those which could damage equipment, and

to those which could be dangerous to personnel:

Immediate hazards which WILL result in

severe personal injury or death. These

instructions describe the procedure re

quired and the injury which will result

from failure to follow the procedure.

Hazards or unsafe practices which

COULD result in severe personal injury

or death. These instructions describe

the procedure required and the injury

which could result from failure to follow

the procedure.

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.

SUPER T SERIES OM-05595

PAGE A - 1SAFETY

SAFETY - SECTION A

This information applies to Super T Se

ries motor driven pumps. Refer to the

manual accompanying the motor before

attempting to begin operation.

This manual will alert personnel to

known procedures which require spe

cial attention, to those which could

damage equipment, and to those which

could be dangerous to personnel. How

ever, this manual cannot possibly pro

vide detailed instructions and precau

tions for each specific application or for

every situation that might occur during

maintenance of the unit. Therefore, it is

the responsibility of the owner, installer

and/or maintenance personnel to en

sure that applications and/or mainte

nance procedures not addressed in this

manual are performed only after estab

lishing that neither personal safety nor

pump integrity are compromised by

such applications or procedures.

Before attempting to open or service the

pump:

1. Familiarize yourself with this man

ual.

2. Disconnect the incoming power to

the motor and lock it out 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 to handle liquids

containing entrained solids or slurries.

Do not attempt to pump volatile, corro

sive, or flammable materials which may

damage the pump or endanger person

nel as a result of pump failure.

After the pump has been positioned,

make certain that the pump and all pip

ing connections are tight, properly sup

ported and secure before operation.

Do not remove plates, covers, gauges,

pipe plugs, or fittings from an over

heated pump. Vapor pressure within the

pump can cause parts being disen

gaged to be ejected with great force. Al

low the pump to cool before servicing.

Do not operate the pump against a

closed discharge valve for long periods

of time. If operated against a closed dis

charge valve, pump components will

deteriorate, and the liquid could come

to a boil, build pressure, and cause the

pump casing to rupture or explode.

SUPER T SERIESOM-05595

PAGE A - 2 SAFETY

Do not install and operate a non‐explo

sion proof motor in an explosive atmo

sphere. Install, connect, and operate

the motor in accordance with the Na

tional Electrical Code and all local

codes. If there is a conflict between the

instructions in the manual accompany

ing the unit and the National Electrical

Code or the applicable local code, the

national or local code shall take prece

dence.

The electrical power used to operate

this pump is high enough to cause inju

ry or death. Obtain the services of a qu

alified electrician to troubleshoot, test

and/or service the electrical compo

nents of this pump.

Death or serious personal injury and

damage to the pump or components

can occur if proper lifting procedures

are not observed. Make certain that

hoists, chains, slings or cables are in

good working condition and of suffi

cient capacity and that they are posi

tioned so that loads will be balanced

and the pump or components will not be

damaged when lifting. Suction and dis

charge hoses and piping must be re

moved from the pump before lifting. Lift

the pump or component only as high as

necessary and keep personnel away

from suspended objects.

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-05595SUPER T 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 posi

tioned 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.

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

NOTE: OPTIONAL ASA OR DIN STANDARD SUCTION & DISCHARGE SPOOL FLANGES AVAILABLE

Figure 1. Pump Model T4A60S-E7.5 3P, Including /WW

OM-05595 SUPER T SERIES

PAGE B - 2 INSTALLATION

OUTLINE DRAWING

NOTE: OPTIONAL ASA OR DIN STANDARD SUCTION & DISCHARGE SPOOL FLANGES AVAILABLE

Figure 2. Pump Model T4A60S-E20 3P, Including /WW

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 and motor for cracks,

dents, damaged threads, and other obvious

damage.

b. Check for and tighten loose attaching hard

ware. Since gaskets tend to shrink after dry

ing, check for loose hardware at mating sur

faces.

c. Carefully read all warnings and cautions con

tained in this manual or affixed to the pump,

and perform all duties indicated. Note the di

rection of rotation indicated on the pump.

Check that the pump shaft rotates counter

clockwise when facing the impeller.

Only operate this pump in the direction in

dicated by the arrow on the pump body

and on the accompanying decal. Refer to

ROTATION in OPERATION, Section C.

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 and motor have been stored for

more than 12 months, some of the compo

nents or lubricants may have exceeded their

maximum shelf life. These must be inspected

or replaced to ensure maximum pump serv

ice.

If the maximum shelf life has been exceeded, or if

anything appears to be abnormal, contact your

Gorman‐Rupp distributor or the factory to deter

mine the repair or updating policy. Do not put the

OM-05595SUPER T SERIES

PAGE B - 3INSTALLATION

pump into service until appropriate action has

been taken.

The electrical power used to operate

this pump is high enough to cause inju

ry or death. Obtain the services of a qu

alified electrician to troubleshoot, test

and/or service the electrical compo

nents of this pump.

POSITIONING PUMP

Death or serious personal injury and

damage to the pump or components

can occur if proper lifting procedures

are not observed. Make certain that

hoists, chains, slings or cables are in

good working condition and of suffi

cient capacity and that they are posi

tioned so that loads will be balanced

and the pump or components will not be

damaged when lifting. Suction and dis

charge hoses and piping must be re

moved from the pump before lifting. Lift

the pump or component only as high as

necessary and keep personnel away

from suspended objects.

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.

Mounting

Locate the pump in an accessible place as close as

practical to the liquid being pumped. Level mount

ing is essential for proper operation.

The pump casing is equipped with mounting foot

holes and the motor is equipped with adjustable

leveling feet. When mounting the pump, secure the

casing feet to the base and then extend the motor

mounting feet to the surface of the base to support

the motor and eliminate vibration. Do not over‐ex

tend the mounting feet; over‐extension of the

mounting feet can cause distortion of the motor

shaft and/or shaft extension, resulting in damage

to the pump and/or motor. When the mounting feet

are fully extended to the surface of the base, lock

the mounting feet in place with the mounting feet

jam nuts.

Clearance

It is recommended that 18 inches (457 mm) of

clearance be provided in front of the back cover to

permit removal of the cover and easy access to the

pump interior. A minimum clearance of 10 inches

(254 mm) must be maintained to permit removal of

the cover.

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 to be sure your

overall application allows pump to operate within

the safe operation range.

Materials

Either pipe or hose maybe used for suction and

discharge lines; however, the materials must be

compatible with the liquid being pumped. If hose is

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

forced type to prevent collapse under suction. Us

ing piping couplings in suction lines is not recom

mended.

Line Configuration

Keep suction and discharge lines as straight as

possible to minimize friction losses. Make mini

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