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GORMAN-RUPP 10 SERIES, Installation, Operation And Maintenance Manual

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GORMAN-RUPP 10 SERIES Installation, Operation And Maintenance Manual Download Page 21

10 SERIES

OM-07454

MAINTENANCE & REPAIR

PAGE E - 3

PARTS LIST

Pump Model 12D1-1B30E FT4 S/G

(From S/N 1750172 Up)

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 part numbers.

ITEM 
NO.

PART NAME

PART 
NUMBER

QTY

1

PUMP PARTS ONLY

46122-808 

1

2

ST ELBOW

RS32 11999

REF

3

WEATHER CAP

29334-302 

1

4

HATZ 1B30E-X FT4 ENGINE

29237-402 

1

5

HOISTING BAIL ASSEMBLY

44711-028 24150

1

6

ROLLOVER BASE

41583-391 24150

1

7

4 GA START CABLE 18”

47311-709

1

8

RUB FOOT MTG KIT

48152-607 

1

9

4 GA START CABLE 12”

47311-710

1

10

LABEL, CAUTION-OIL

38816-341 

1

11

GUARD

34851-875 15120

1

12

THROTTLE KNOB KIT

29284-172 

1

13

MACHINE SCREW

X#06-02

2

14

HEX NUT

D#06 15991

2

15

HEX HEAD CAP SCREW

B0504 15991

2

16

FLAT WASHER

KE05 

4

17

HEX NUT W/FLANGE

21765-312 

2

18

THROTTLE CONTROL MTG PLATE

34851-876 15120

1

19

HEX HEAD CAP SCREW

B0402-1/2 15991 

2

20

LOCK WASHER

J04 15991 

10

21

HEX NUT

D04 15991 

10

22

ECM MOUNT PLATE

33276-062 15120

1

23

STUD MOUNT

24631-014

4

24

HEX HEAD CAP SCREW

B0405 15991 

3

25

HEX NUT W/FLANGE

21765-310

3

26

HEX HEAD CAP SCREW

B0607 15991

2

27

FLAT WASHER

KE06 15991 

2

28

HEX NUT W/FLANGE

21765-314

2

29

SPACER

31141-029 13000

2

30

BATTERY BOX ASSEMBLY

42432-018

1

31

MUFFLER CLAMP

S1980 

1

32

LOCK WASHER

J05 15991 

1

NOT SHOWN:

ENGINE START-UP TAG

38816-269 

1

OPTIONAL:

WHEEL KIT

GRP30-54

1

Summary of Contents for 10 SERIES

Page 1: ...OM 07454 01 August 3 2021 GORMAN RUPP PUMPS www grpumps com e2021 Gorman Rupp Pumps Printed in U S A INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 12D1 1B30E FT4 S G ...

Page 2: ...L 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 The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm ...

Page 3: ... Lines In Sumps PAGE B 3 Suction Line Positioning PAGE B 4 DISCHARGE LINES PAGE B 4 Siphoning PAGE B 4 Valves PAGE B 5 Bypass Lines PAGE B 5 OPERATION SECTION C PAGE C 1 PRIMING PAGE C 1 STARTING PAGE C 1 OPERATION PAGE C 1 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 2 Pump Vacuum Check PAGE C 2 STO...

Page 4: ...p Casing Removal PAGE E 7 Impeller Removal PAGE E 7 Seal Removal and Disassembly PAGE E 7 Seal Reassembly and Installation PAGE E 7 Impeller Installation And Adjustment PAGE E 9 Pump Casing Installation PAGE E 9 Back Cover Installation PAGE E 9 Suction Check Valve Installation PAGE E 9 Final Pump Assembly PAGE E 10 LUBRICATION PAGE E 10 Seal Assembly PAGE E 10 Engine PAGE E 10 ...

Page 5: ...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 power source contact the power source manufac turer s local dealer or representative HAZARD AND INSTRUCTION DEFINITIONS The following are used to alert maintenance per sonnel to procedures which requir...

Page 6: ... 7 Drain the pump This pump is designed to handle most non volatile non flammable liquids containing specified entrained solids Do not attempt to pump volatile corro sive or flammable liquids which may damage the pump or endanger person nel as a result of pump failure After the pump has been installed make certain that the pump and all piping or hose connections are tight properly supported and se...

Page 7: ...ide a deadly gas that is color less tasteless and odorless Fuel used by internal combustion en gines 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 run ning engine Avoid overfilling the fuel tank Always use the correct type of fuel Never tamper with the governor to gain more power The governor establishe...

Page 8: ...cation 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 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 thi...

Page 9: ...ump 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 may have to be supported or shimmed to provide for level operation or to eliminate vibra tion If th...

Page 10: ...s 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 A strainer or other device should be used to f...

Page 11: ... 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 Figure 2 Recommended Minimum Suction Line Submergence vs Velocity DISCHARGE LINES Siphoning Do not terminate the discharge line at a level lower than that of the liquid being pumped unless a si pho...

Page 12: ... valve before stopping the pump Bypass Lines If a system check valve is used due to high dis charge head it may be necessary to vent trapped air from the top of the pump during the priming process This may be accomplished by installing a bypass line from the top of the pump back to the source of liquid The end of the bypass line must be submerged The line must be large enough to pre vent clogging ...

Page 13: ...ere 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 O...

Page 14: ...iquid to a boil build pressure and cause the pump to rup ture or explode If overheating occurs stop the pump and allow it to cool before servicing it Refill the pump casing with cool liquid 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 ...

Page 15: ... the pump will remain inop erative 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 rotat ing parts If the pump will be idle for more than a few hours or if it has been pumping liquids c...

Page 16: ...or binding Clean valve Not enough liquid in casing Add liquid to casing See PRIMING Suction check valve contaminated or damaged Clean or replace check valve OM 07454 10 SERIES 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 Shut down the engine and take pre cautions...

Page 17: ...eces sary Suction check valve or foot valve clogged or binding Clean valve Leaking or worn seal or pump gasket Check pump vacuum Replace leaking or worn seal or gasket Pump speed too slow Check engine output consult en gine operation manual Pump speed too high Check engine output Suction lift or discharge head too high Check piping installation and install bypass line if needed See INSTAL LATION D...

Page 18: ...ely 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 inspec tions should be performed at the intervals shown on the chart below Critical applications should be inspected more frequently Gen...

Page 19: ...ith 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 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 Never tamper with the governor to gain mo...

Page 20: ... SERIES OM 07454 MAINTENANCE REPAIR PAGE E 2 ILLUSTRATION PARTS PAGE 4 1 29 2 5 3 8 28 31 26 16 27 32 6 10 11 12 13 14 22 20 21 23 24 25 18 20 21 19 30 15 16 17 9 7 Figure 1 Pump Model 12D1 1B30E FT4 S G ...

Page 21: ...0 LABEL CAUTION OIL 38816 341 1 11 GUARD 34851 875 15120 1 12 THROTTLE KNOB KIT 29284 172 1 13 MACHINE SCREW X 06 02 2 14 HEX NUT D 06 15991 2 15 HEX HEAD CAP SCREW B0504 15991 2 16 FLAT WASHER KE05 4 17 HEX NUT W FLANGE 21765 312 2 18 THROTTLE CONTROL MTG PLATE 34851 876 15120 1 19 HEX HEAD CAP SCREW B0402 1 2 15991 2 20 LOCK WASHER J04 15991 10 21 HEX NUT D04 15991 10 22 ECM MOUNT PLATE 33276 06...

Page 22: ...10 SERIES OM 07454 MAINTENANCE REPAIR PAGE E 4 ILLUSTRATION Figure 2 Pump Parts Only ...

Page 23: ...IVE SCREW BM 04 03 17000 4 18 STUD C0808 15991 2 19 CASING DRAIN PLUG P06 15079 1 20 BACK COVER GASKET 12369G 20000 1 21 LOCK WASHER J04 15991 2 22 HEX NUT D04 15991 2 23 FLAT WASHER KE08 15991 2 24 WING NUT BB08 15991 2 25 BACK COVER PLATE ASSY 42111 919 1 WARNING PLATE 2613EV 13990 1 DRIVE SCREW BM 04 03 17000 1 26 SUCTION FLANGE 38645 024 13040 1 27 FLAP VALVE ASSY 46413 028 1 LARGE WEIGHT 19B ...

Page 24: ...ce the pump shut down the engine and take precautions to ensure that it will remain inoperative Close all valves in the suc tion and discharge lines For engine disassembly and repair consult the lit erature supplied with the engine or contact your local engine representative Before attempting to open or service the pump 1 Familiarize yourself with this man ual 2 Shut down the engine and take preca...

Page 25: ...aces of the intermediate and pump casing Impeller Removal Figure 2 To loosen the impeller 13 tap the vanes of the im peller in a counterclockwise direction when facing the impeller with a block of wood or a soft faced mallet Be careful not to damage the vane Un screw the impeller and replace it if cracked or badly worn Use caution when removing the impeller tension on the seal spring will be relea...

Page 26: ...he seal components for wear scoring grooves and other damage that might cause leak age Clean and polish the shaft sleeve or replace it if there are nicks or cuts on either end If any com ponents are worn replace the complete seal never mix old and new seal parts 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...

Page 27: ...eller scrapes against the wear plate when the shaft is turned After the impeller scrapes add approximately 010 inch 0 25 mm of gaskets After the face clearance has been set tighten the nuts 7 securing the pump casing to the intermedi ate See Figure 1 and secure the pump casing to the base 6 with the hardware 15 16 17 Be sure to reinstall any leveling shims used under the mount ing feet of the pump...

Page 28: ...re Be sure the pump and engine have been properly lubricated see LUBRICATION Remove the fill plug 2 and fill the pump casing with clean liquid Reinstall the fill plug and tighten Refer to OPERATION Section C before putting the pump back into service LUBRICATION Seal Assembly The seal assembly is lubricated by the medium be ing pumped and no additional lubrication is re quired Engine Consult the li...

Page 29: ...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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