GORMAN-RUPP PUMPS Super T4A71S-B Installation, Operation And Maintenance Manual Download Page 17

SUPER T SERIES

OM-05350

OPERATION

PAGE C - 1

OPERATION - SECTION C

Review all SAFETY information in Section A.

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

This pump is designed to handle liquids
containing large entrained solids and
slurries. Do not attempt to pump vola­
tile, corrosive, or flammable liquids
which may damage the pump or endan­
ger personnel as a result of pump fail­
ure.

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

PRIMING

Install the pump and piping as described in 

IN­

STALLATION

. Make sure that the piping connec­

tions are tight, and that the pump is securely
mounted. Check that the pump is properly lubri­
cated (see 

LUBRICATION

 in 

MAINTENANCE

AND REPAIR

).

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

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

Add liquid to the pump casing when:

1. The pump is being put into service for the

first time.

2. The pump has not been used for a consider­

able length of time.

3. The liquid in the pump casing has evapo­

rated.

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

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

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

STARTING

Consult the operations manual furnished with the
power source.

Rotation

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

Only operate this pump in the direction in­

Summary of Contents for Super T4A71S-B

Page 1: ...ly 11 2002 Rev J 06 20 19 GORMAN RUPP PUMPS www grpumps com 2002 Gorman Rupp Pumps Printed in U S A INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST SUPER T SERIES PUMPS MODELS T4A71S B I...

Page 2: ...rial 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 in...

Page 3: ...tion Line Positioning PAGE B 4 DISCHARGE LINES PAGE B 4 Siphoning PAGE B 4 Valves PAGE B 4 Bypass Lines PAGE B 5 AUTOMATIC AIR RELEASE VALVE PAGE B 6 Air Release Valve Installation PAGE B 6 ALIGNMENT...

Page 4: ...al 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...

Page 5: ...y 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...

Page 6: ...arge valves 6 Vent the pump slowly and cau tiously 7 Drain the pump This pump is designed to handle liquids containing large entrained solids or slurries Do not attempt to pump vola tile corrosive or...

Page 7: ...nent only as high as necessary and keep personnel away from suspended objects Do not attempt to disengage any part of an overheated pump unit Vapor pres sure within the pump casing can eject these par...

Page 8: ...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 th...

Page 9: ...contact your Gorman Rupp distributor or the factory to deter mine the repair or updating policy Do not put the pump into service until appropriate action has been taken POSITIONING PUMP Lifting Death...

Page 10: ...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...

Page 11: ...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...

Page 12: ...is recommended that the by pass line be run back to the wet well and located 6 inches below the water level or cut off point of the low level pump In some installations this bypass line may be termina...

Page 13: ...ng the plug to prevent injury to per sonnel from hot liquid AUTOMATIC AIR RELEASE VALVE When properly installed a Gorman Rupp Auto matic Air Release Valve will permit air to escape through the bypass...

Page 14: ...ys tem do not direct bleeder lines to a common mani fold pipe Contact your Gorman Rupp distributor or the Gorman Rupp Company for information about installation of an Automatic Air Release Valve for y...

Page 15: ...the same distance apart at all points see Figure 5 Figure 5 Aligning Non Spider Type Couplings Check parallel adjustment by laying a straightedge across both coupling rims at the top bottom and side W...

Page 16: ...drive belts check the tension after 5 20 and 50 hours of operation and re tension as re quired see the following procedure for measuring belt tension Thereafter check and re tension if re quired month...

Page 17: ...the seal assembly Add liquid to the pump casing when 1 The pump is being put into service for the first time 2 The pump has not been used for a consider able length of time 3 The liquid in the pump ca...

Page 18: ...pressure gauge or by a quieter operation The pump may not prime imme diately because the suction line must first fill with liquid If the pump fails to prime within five minutes stop it and check the s...

Page 19: ...g pressure shown on the pump performance curve Pump Vacuum Check With the pump inoperative install a vacuum gauge in the system using pipe dope on the threads Block the suction line and start the pump...

Page 20: ...res 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 i...

Page 21: ...r gasket Not enough liquid in casing Add liquid to casing See PRIMING Suction check valve contaminated or damaged Clean or replace check valve Suction check valve or foot valve clogged or binding Clea...

Page 22: ...eck valve or foot valve clogged or binding Clean valve Suction lift or discharge head too high Check piping installation and install bypass line if needed See INSTAL LATION Impeller clogged or damaged...

Page 23: ...tely 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 insig...

Page 24: ...sea level with minimum suction lift Since pump installations are seldom identical your performance may be dif ferent due to such factors as viscosity specific gravity elevation temperature and impell...

Page 25: ...OM 05350 SUPER T SERIES MAINTENANCE REPAIR PAGE E 2 ILLUSTRATION PARTSPAGE Figure 1 Pump Model T4A71S B Including F FM...

Page 26: ...004 11010 1 31 SQUARE HEAD BOLT A1014 15991 2 32 CLAMP BAR SCREW 31912 009 15000 1 33 FILL COVER ASSY 42111 344 1 WARNING PLATE 38816 097 13990 1 DRIVE SCREW BM 04 03 17000 2 COVER GASKET 50G 19210 1...

Page 27: ...OM 05350 SUPER T SERIES MAINTENANCE REPAIR PAGE E 4 ILLUSTRATION Figure 2 Repair Rotating Assembly...

Page 28: ...RAIN PLUG P04 15079 1 25A SEAL CVTY DRAIN PLUG P04 15079 1 26 SHAFT SLEEVE O RING 25154 022 REF 27 IMP ADJ SHIM SET 37J 17090 REF 28 PIPE PLUG PC20 10009 1 29 O RING 25152 273 1 30 O RING S1674 1 31 S...

Page 29: ...and removing the back cover assembly If major repair is required the piping and or power source must be disconnected The following instructions assume complete disassem bly is required Before attempt...

Page 30: ...ck cover O rings 8A and 12A and replace them if damaged or worn Suction Check Valve Removal Figure 1 If the check valve assembly 28 is to be serviced remove the check valve pin 29 reach through the ba...

Page 31: ...the as sem bly Remove the bearing housing O ring 9 Impeller Removal Figure 2 With the rotating assembly removed from the pump casing unscrew the impeller from the shaft Use caution when unscrewing the...

Page 32: ...from excessive heat sparks and flame Read and follow all precautions printed on solvent contain ers Clean the bearings thoroughly in fresh cleaning solvent Dry the bearings with filtered compressed a...

Page 33: ...d sleeve and a press to reposition the bearings against the shaft shoulders If heating the bearings is not practical use a suit ably sized sleeve and an arbor or hydraulic press to install the bearing...

Page 34: ...ould result in prema ture failure To ease installation of the seal lubricate the shaft sleeve O ring and the external stationary seat O ring with a very small amount of light lubricating oil See Figur...

Page 35: ...FULLY SEATED IN SEAL PLATE BORE SHEAR RING SHEARED Figure 7 Seal Fully Installed As the stationary seat becomes fully seated the seal spring compresses and the shaft sleeve will break the nylon shear...

Page 36: ...the slightest amount of dirt on the threads can cause the impeller to seize to the shaft making future removal difficult or impossible without damage to the im peller or shaft Install the same thickne...

Page 37: ...ndexing the collars one det ent on the adjusting screws represents approxi mately 005 inch 0 13 mm of wear plate clear ance The recommended clearance between the wear plate and the impeller is 010 to...

Page 38: ...OPERATION It is recommended that the pressure relief valve as sembly be replaced at each overhaul or any time the pump overheats and activates the valve Never replace this valve with a substitute whic...

Page 39: ...must be posi tioned horizontally to provide proper drainage Under normal conditions drain the bearing hous ing once each year and refill with clean oil Change the oil more frequently if the pump is op...

Page 40: ...For Warranty Information Please Visit www grpumps com warranty or call U S 419 755 1280 Canada 519 631 2870 International 1 419 755 1352 GORMAN RUPP PUMPS...

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