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T SERIES

OM--01930--03

TROUBLESHOOTING

PAGE D -- 1

TROUBLESHOOTING --- SECTION D

Review all SAFETY information in Section A.

Before attempting to open
or service the pump:

1. Familiarize yourself with this manual.
2. Disconnect or lock out the power source to

ensure that the pump will remain inoperative.

3. Allow the pump to 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 cautiously.
7. Drain the pump.

TROUBLE

POSSIBLE CAUSE

PROBABLE REMEDY

PUMP FAILS TO

PRIME

Suction check valve contaminated or
damaged.

Clean or replace check valve.

Air leak in suction line.

Lining of suction hose collapsed.

Correct leak.

Replace suction hose.

Leaking or worn seal or pump gasket.

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

Suction lift or discharge head too high.

Check piping installation and in-
stall bypass line if needed. See

INSTALLATION

.

Strainer clogged.

Check strainer and clean if neces-
sary.

Not enough liquid in casing.

Add liquid to casing. See

PRIM-

ING

.

PUMP STOPS OR

FAILS TO DELIVER

RATED FLOW OR

PRESSURE

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.

Strainer clogged.

Check strainer and clean if neces-
sary.

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

Check installation and correct sub-
mergence as needed.

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Содержание T-SERIES

Страница 1: ...MAN RUPP COMPANY D MANSFIELD OHIO GORMAN RUPP OF CANADA LIMITED D ST THOMAS ONTARIO CANADA Printed in U S A ECopyright by the Gorman Rupp Company INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST T SERIES PUMP MODELS T8A60 B INCLUDING F FM ...

Страница 2: ... Sumps PAGE B 3 Suction 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 Theory of Operation PAGE B 6 Air Release Valve Installation PAGE B 7 ALIGNMENT PAGE B 7 Coupled Drives PAGE B 8 V Belt Drives PAGE B 8 OPERATION SECTION C PAGE C 1 PRIMING PAGE C 1 STARTING PAGE C 1 Rotation PAGE C 1 OPERATION PAGE...

Страница 3: ...E 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 Reassembly and Installation PAGE E 10 Impeller Installation and Adjustment PAGE E 13 Rotating Assembly Installation PAGE E 13 Suction Check Valve Installation PAGE E 14 Back Cover Installation PAGE E ...

Страница 4: ...io 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 power source contact the power source manufac turer 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...

Страница 5: ...r endanger personnel 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 operate the pump without the guards in place over the rotating parts Exposed rotating parts can catch cloth ing fingers or tools causing severe in jury to personnel Do not remove plates covers gau...

Страница 6: ... 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 assist...

Страница 7: ...m 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 6 000 pounds 2721 6 kg This pump weighs ap proximately 1 20...

Страница 8: ...ect 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 sta...

Страница 9: ...y 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...

Страница 10: ...hose and break up any solids grease or other substances likely to cause clogging A bypass line that is returned to a wet well must be secured against being drawn into the pump suction inlet It is also recommended that pipe unions be in stalled at each 90_ elbow in a bypass line to ease disassembly and maintenance In high discharge head applications more than 30 feet an excessive amount of liquid m...

Страница 11: ...on When the pump is fully primed pressure resulting from flow against the valve diaphragm com presses the spring and closes the valve Figure 4 The valve will remain closed reducing the bypass of liquid to 1 to 5 gallons per minute until the pump loses its prime or stops Some leakage 1 to 5 gallons per min ute will occur when the valve is fully closed Be sure the bypass line is di rected back to th...

Страница 12: ... valve and is also equipped with standard 1 inch NPT pipe threads The outlet should be con nected to a bleed line which slopes back to the wet well or sump The bleed line must be the same size as the inlet piping or larger If piping is used for the bleed line avoid the use of elbows whenever pos sible NOTE It is recommended that each Air Release Valve be fitted with an independent bleeder line dir...

Страница 13: ...lignment when the hub ends are the same distance apart at all points see Figure 6 Figure 6 Aligning Spider Type Couplings Figure 7 Aligning Non Spider Type Couplings Align non spider type couplings by using a feeler gauge or taper gauge between the couplinghalves every 90 degrees The coupling is in alignment when the hubs are the same distance apart at all points see Figure 7 Check parallel adjust...

Страница 14: ...elts are too tight there will be excessive power loss and possible bearing failure Select pulleys that will match the proper speed ra tio overspeeding the pump may damage both pump and power source Do not operate the pump without the guards in place over the rotating parts Exposed rotating parts can catch cloth ing fingers or tools causing severe in jury to personnel ...

Страница 15: ...he 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 ou...

Страница 16: ...discharge throttling valve pump components will deteriorate and the liquid could come to a boil build pressure and cause the pump casing to rupture or explode Leakage No leakage should be visible at pump mating sur faces or at pump connections or fittings Keep all line connections and fittings tight to maintain maxi mum pump efficiency Liquid Temperature And Overheating The maximum liquid temperat...

Страница 17: ...topping If the application involves a high discharge head gradually close the discharge throttling valve before stopping the pump After stopping the pump disconnect or lock out the power source to ensure that the pump will re main inoperative 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 Opera...

Страница 18: ... leak in suction line Lining of suction hose collapsed Correct leak Replace suction hose Leaking or worn seal or pump gasket Check pump vacuum Replace leaking or worn seal or gasket Suction lift or discharge head too high Check piping installation and in stall bypass line if needed See INSTALLATION Strainer clogged Check strainer and clean if neces sary Not enough liquid in casing Add liquid to ca...

Страница 19: ...Check driver output check that sheaves or couplings are cor rectly sized Discharge head too low Adjust discharge valve Liquid solution too thick Dilute if possible Bearing s frozen Disassemble pump and check bearing s Liquid solution too thick Dilute if possible Discharge flow too slow Open discharge valve fully to in crease flow rate and run power source at maximum governed speed Suction check va...

Страница 20: ...le free performance and long life from your Gorman Rupp pump For specific questions con cerning your application contact your Gorman Rupp distributor or the Gorman Rupp Company Record keeping is an essential component of a good preventive maintenance program Changes in suction and discharge gauge readings if so equipped between regularly scheduled inspec tions can indicate problems that can be cor...

Страница 21: ... Impeller Clearance Seal Plate I Check Valve I Pressure Relief Valve If So Equipped C Pump and Driver Alignment I Shaft Deflection I Bearings I Bearing Housing I Piping I Driver Lubrication See Mfgr s Literature 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 schedu...

Страница 22: ...el with minimum suction lift Since pump installations are seldom identical your performance may be dif ference due to such factors as viscosity specific gravity elevation temperature and impeller trim If your pump serial number is followed by an N your pump is NOT a standard production model Contact the Gorman Rupp Company to verify per formance or part numbers Pump speed and operating condition p...

Страница 23: ...OM 01930 03 T SERIES MAINTENANCE REPAIR PAGE E 2 SECTION DRAWING TOP VIEW Figure 1 Pump Model T8A60 B ...

Страница 24: ...8 HEX NUT D08 15991 3 39 HEX HD CAPSCREW B1209 15991 8 40 LOCKWASHER J12 15991 8 41 SUCTION FLANGE 12356 10010 1 42 CHECK VALVE ASSY 46411 066 1 43 SUCTION STICKER 6588AG 1 44 PIPE PLUG P20 10009 1 45 PIPE PLUG P04 15079 1 46 CLAMP BAR 38111 004 11010 1 47 MACHINE BOLT A1014 15991 2 48 CLAMP BAR SCREW 31912 009 15000 1 49 FILL CVR PLT ASSY 42111 344 1 50 COVER PLATE NOT AVAILABLE 1 51 WARNING PLAT...

Страница 25: ...OM 01930 03 T SERIES MAINTENANCE REPAIR PAGE E 4 SECTION DRAWING DRIVE END VIEW SEAL AREA DETAIL Figure 2 44163 129 Repair Rotating Assembly ...

Страница 26: ...23 OUTBRD BALL BEARING 23422 412 1 24 SEAL SLEEVE O RING 25152 026 1 25 HEX HD CAPSCREW B1006 15991 4 26 LOCKWASHER J10 15991 4 27 IMPELLER WASHER 10278 15030 1 28 IMPELLER CAPSCREW DM1004S 15991 1 29 SEAL PLATE O RING S1914 1 30 BEARING HSG O RING S1914 1 31 SHIPPING PLUG 11495B 15079 1 32 SHIPPING PLUG 11495B 15079 1 NOT SHOWN ROT ASSY SHIM SET 48261 056 6 ROTATION DECAL 2613M 1 INSTRUCTION TAG ...

Страница 27: ... the pump 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 attempting to service the pump disconnect or lock out the power source and take precautions to ensure that it will remain inoperative Close all valves in the suction and discharge lines For power so...

Страница 28: ...ounterclock wise direction when facing the drive end of the shaft Use caution not to damage the shaft or key way When the impeller breaks loose remove the lathe dog and wood block NOTE Do not remove the impeller until the rotating assem bly has been removed from the pump casing Turn Counterclockwise Lathe Dog Arm V Notch Shaft Key Impeller Shaft Lathe Dog Setscrew Heavy Bar Stock Figure 3 Loosenin...

Страница 29: ...ol to press on the back side of the stationary seat until the seat O rings and stationary element can be re moved Remove the shaft sleeve O ring 24 If no further disassembly is required refer to Seal Installation Shaft and Bearing Removal and Disassembly Figure 2 When the pump is properly operated and main tained the bearing housing should not require dis assembly Disassemble the shaft and bearing...

Страница 30: ...haft or bearing housing if the proper bearing fit is not achieved If bearing replacement is required remove the out board bearing retaining ring 18 and use a bear ing puller to remove the bearings from the shaft Press the inboard oil seal 4 from the bearing housing Shaft and Bearing Reassembly and Installation Figure 2 Clean the bearing housing shaft and all compo nent parts except the bearings wi...

Страница 31: ...ve and an arbor or hydraulic press to install the bearings on the shaft When installing the bearings onto the shaft never press or hit against the outer race balls or ball cage Press only on the inner race Secure the outboard bearing on the shaft with the bearing retaining ring 18 Slide the shaft and assembled bearings into the bearing housing until the retaining ring on the out board bearing seat...

Страница 32: ... seat O ring with a very small amount oflight lubricatingoil See Figure 5 for seal part identification SEAL PLATE O RINGS IMPELLER SHAFT STATIONARY SEAT STATIONARY ELEMENT ROTATING ELEMENT DRIVE BAND BELLOWS IMPELLER SHIMS IMPELLER SPRING RETAINER INTEGRAL SHAFT SLEEVE SLEEVE O RING SPRING CENTERING WASHER SHEAR RING SHEARED Figure 5 46513 154 Seal Assembly This seal is not designed for operation ...

Страница 33: ...to the seal plate bore As the stationary seat becomes fully seated the seal spring compresses and the shaft sleeve will break the nylon shear ring This allows the sleeve to slide down the shaft until seated against the shaft shoulder Continue to screw the impeller onto the shaft until the impeller shims and sleeve are fully seated against the shaft shoulder see Figure 7 STATIONARY SEAT FULLY SEATE...

Страница 34: ... Even 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 thickness of impeller adjusting shims 10 as previously removed Apply Never Seez or equivalent to the shaft threads and screw the impeller onto the shaft until tight Be sure the spring centering washer ...

Страница 35: ...the mounting slot in the suction flange 41 Align the adaptor with the flange hole and secure the as sembly with the check valve pin 3 NOTE If the suction or discharge flanges were removed replace the respective gaskets apply Permatex Aviation No 3 Form A Gasket or equivalent com pound to the mating surfaces and secure them to the pump casing with the attaching hardware Back Cover Installation Figu...

Страница 36: ...p back into service LUBRICATION Seal Assembly Figure 2 Before starting the pump remove the vented plug 8 and fill the seal cavity with approximately 90 ounces 2 7 liters of SAE No 30 non detergent oil or to a level just below the tapped vented plug hole Clean and reinstall the vented plug Maintain the oil at this level Bearings Figure 2 The bearing housing was fully lubricated when shipped from th...

Страница 37: ...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 ...

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