GORMAN-RUPP 12D1-1B20 FT4 Installation, Operation And Maintenance Manual Download Page 1

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OM-06789-01

August 24, 2015

GORMAN‐RUPP PUMPS

www.grpumps.com

2015 Gorman‐Rupp Pumps

Printed in U.S.A.

INSTALLATION, OPERATION,

AND MAINTENANCE MANUAL

WITH PARTS LIST

10 SERIES PUMP

MODEL

12D1-1B20 FT4

Summary of Contents for 12D1-1B20 FT4

Page 1: ...OM 06789 01 August 24 2015 GORMAN RUPP PUMPS www grpumps com e2015 Gorman Rupp Pumps Printed in U S A INSTALLATION OPERATION AND MAINTENANCE MANUAL WITH PARTS LIST 10 SERIES PUMP MODEL 12D1 1B20 FT4...

Page 2: ...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...

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...

Page 4: ...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 5: ...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 po...

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...

Page 7: ...s 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...

Page 8: ...ed 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 Sinc...

Page 9: ...mp 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...

Page 10: ...perated at a higher lift 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...

Page 11: ...bmergence required may be reduced by installing a standard pipe increaser fitting at the end of the suction line The larger opening size will reduce the inlet velocity Calculate the required submergen...

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...

Page 13: ...re 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 l...

Page 14: ...quid 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 remo...

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 pu...

Page 16: ...r 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 06789 10 SERIES TROUBLESHOOTING PAGE D 1...

Page 17: ...ces 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...

Page 18: ...ly 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...

Page 19: ...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 b...

Page 20: ...10 SERIES OM 06789 MAINTENANCE REPAIR PAGE E 2 ILLUSTRATION PARTSPAGE Figure 1 Pump Model 12D1 1B20 FT4...

Page 21: ...3 PRIMING STICKER 6588AH REF 4 DISCHARGE STICKER 6588BJ 1 5 STREET ELBOW RS32 11999 REF 6 HATZ 1B20 FT4 ENGINE 29237 004 1 7 HAND CARRY DECAL 2613FT 2 8 WARNING DECAL 2613FE 1 9 ROLLOVER BASE 41583 36...

Page 22: ...10 SERIES OM 06789 MAINTENANCE REPAIR PAGE E 4 ILLUSTRATION Figure 2 Pump Parts Only 12D1 1B20 PPO...

Page 23: ...6 NAME PLATE 38818 021 13990 1 17 DRIVE 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 1599...

Page 24: ...cal engine representative Before attempting to open or service the pump 1 Familiarize yourself with this man ual 2 Shut down the engine and take precautions to ensure that the pump will remain inopera...

Page 25: ...disassembly is required see Seal Reassembly and Installation Seal Reassembly and Installation Figures 2 and 3 Inspect the engine crankshaft for damage Small scratches or nicks may be removed with a f...

Page 26: ...e engine with the hard ware 5 and 6 Slide the rotating subassembly consisting of the element bellows and retainer over the lubricated shaft sleeve until the rotating element is just flush with the cha...

Page 27: ...tacts the pump casing to ease future dis assembly and to reduce rust and scale build up Replace the back cover gasket 20 and slide the back cover assembly into the pump casing Be sure the wear plate d...

Page 28: ...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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