OPERATION AND MAINTENANCE OF SELF-PRIMING
Contents
1. stop it and check the suction line for leaks After the pump has been primed partially close the discharge line throttling valve in order to fill the line slowly and guard against excessive shock pressure which could damage the pump pipe gaskets sprinkler heads and any other fixtures connected to the line When the discharge line is completely filled adjust the throttling valve to the required flow rate No leakage should be visible at pump mating surfaces or at pump connections or fittings LIQUID TEMPERATURE AND OVERHEATING The maximum liquid temperature for this pump is 160 degrees Fahrenheit Do not apply it at a higher operating temperature Overheating can occur if operated with the valves in the suction and discharge lines closed Operating against closed valves could bring the liquid to a boil build pressure and cause the pump to rupture or explode If overheating occurs stop the pump and allow it to cool before servicing it Refill the pump casing with cool liquid STOPPING Never halt the flow of liquid suddenly If the liquid being pumped is stopped abruptly damaging shock waves can be transmitted to the pump and piping system Close all connecting valves slowly After stopping the pump lock out the power supply to ensure that the pump will remain inoperative Flush out the pump if the liquid being pumped will leave a sticky residue or will harden DRAINING During freezing weather be sure to drain the pump when i2. 1 35 320 A 35 320 A 35 320 B 35 320 B 2 IMPELLER 1 2 127 A 2 313 A 2 127 2 313 3 SEALING WASHER SET OF FOUR 1 16 233 1 16 233 1 16 233 1 16 233 1 4 BOLT 5 16 24 X 1 38 SST 4 19 216 19 216 19 216 19 216 5 SLINGER 1 12 117 B 12 117 B 12 117 B 12 117 B 8 SHAFT SEAL SIC VITON 1 3 258 3 258 3 258 3 258 9 HANDLE 6 32 134 32 196 32 134 32 196 13 STD BRACKET ROTO FINISH 1 5 128 1B 5 128 1B 5 128 1B 5 128 1B 13 ALT BRACKET WHITE EPOXY 1 5 128 2B 5 128 2B 5 128 2B 5 128 2B 13 ALT BRACKET CAST IRON BLK 1 5 372 1B 5 372 1B 5 372 1 5 372 1B 15 STD BODY O RING EPDM 1 12 133 12 133 12 133 12 133 15 ALT BODY O RING VITON 1 12 133 A 12 133 A 12 133 12 133 17 STD PLUG amp O RING EPDM 2 11 116 1 11 116 1 11 116 1 11 116 1 17 ALT PLUG amp O RING 2 11 116 1A 11 116 1A 11 116 1A 11 116 1A 18 STD BODY ROTO FINISH 1 6 129 1A 6 131 1A 6 129 1 6 131 1 18 ALT BODY WHITE EPOXY 1 6 129 2A 6 131 2A 6 129 2A 6 131 2A 18 ALT BODY CAST IRON BLK 1 6 370 1A 6 371 1A 6 370 1 6 371 1 19 VOLUTE 1 1 139 1 312 1 139 1 312 20 STD CHECK VALVE EPDM 1 7 136 1 7 137 1 7 136 1 7 137 1 20 ALT CHECK VALVE VITON 1 7 136 1A 7 137 1A 7 136 1A 7 137 1A 28 STD O RING EPDM 1 12 160 12 160 12 160 12 160 28 ALT O RING 1 12 160 A 12 160 A 12 160 12 160 A 32 ROLL PIN LONG 1 21 316 21 316 21 316 21 316 a3 ROLL PIN SST 5 21 298 21 298 21 298 21 298 34 O RING RETAINING SET OF 6 1 12 299 1 12 299 1 12 299 1
3. the carrier a clear receipt Note such damage on the carrier s delivery receipt and HAVE THE DRIVER SIGN THE RECEIPT PRODUCT REVISIONS AMT reserves the right to discontinue change or improve its products or any portions thereof without being obligated to provide such a change or improvement for units sold and or shipped prior to such a change or improvement 12 Month Limited Warranty EXTENT AND DURATION OF LIMITED WARRANTY Coverage American Machine amp Tool Company herein AMT or IPT Pumps by Gorman Rupp herein IPT or Gorman Rupp Industries Division of The Gorman Rupp Company Patterson or the Gorman Rupp Company herein referred to as G R Unit each individually warrants that its products and parts shall be free from defects in material ad workmanship for twelve 12 months from the date of purchase by the original end user when installation is made and maintenance is performed in accordance with G R Unit s recommendations Wear and tear resulting from use and items normally consumed in use are not covered EXCEPTIONS A This Limited Warranty shall not apply to mechanical seals in or IPT pumps and the following products and parts engines motors trade accessories and all other products components parts and materials not manufactured by the G R Units These items may however be covered by the warranties of their respective manufacturers B This warranty does not extend to or apply to any unit which has been rep
4. 12 299 1 35 SHIM IMPELLER SET OF 4 1 22 255 1A 22 255 1A 22 255 1 22 255 1 36 SPACER IMPELLER 1 23 301 A 23 301 A 23 301 23 301 40 PEDESTAL HOUSING 1 35 320 35 320 35 320 35 320 41 BEARING 2 47 324 47 324 47 324 47 324 42 SHAFT 1 34 321 34 321 34 322 34 322 43 SNAP RING 1 37 325 37 325 37 325 37 325 46 SPACER USE OPTIONAL 3 28 258 28 258 28 258 28 258 NOT SHOWN TRASH STRAINER 1 44 278 44 314 44 278 44 314 NOT SHOWN SEAL amp O RING KIT EPDM STD 1 50 006 50 007 50 006 50 007 NOT SHOWN SEAL amp O RING KIT VITON ALT 1 50 006 A 50 007 A 50 006 A 50 007 A Viton is a registered trademark of DuPont Dow Elastomers Seal and O Ring Kit Contains Body O Ring Sealing Washer Set Volute O Ring Plugs Shaft Seal Spacer Shim Set Check Valve Instruction Sheet and Seal Installation Tool How Order Repair Parts For Your Self Priming Centrifugal Pump All parts shown on the parts list and on the exploded view drawing may be ordered through the nearest distributor When Ordering Repair Parts Always Give The Following Information 1 Identify pump model number 2 Part name and number Not illustration number 3 Quantity required 4 Material specification if other than standard NOTES Installation amp Operating Instructions Self Priming Centrifugal Pump REPAIR AND MAINTENANCE INSTRUCTIONS To disassemble pump follow these steps B 8 4 Remove handles 9 Remove body
5. 18 Remove the volute 19 Follow these instructions for removing the impeller 2 Remove the impeller by rotating the impeller counter clockwise It may be necessary to strike the end of one of the impeller vanes with a wood block and hammer to start the counter clockwise rotation If the mechanical shaft seal 8 needs replacing a With a screwdriver pry the white seal ring and its rubber boot out of the back of the impeller b Remove the pump bracket rear housing 13 by removing the four bolts 4 remove the seal assembly 8 from the rear housing drive it out from behind To replace the seal component in the rear housing coat the bore in the housing where the seal goes with gasket material Permatex or equivalent and press the seal component into the housing by using an arbor press or drill press Use a short piece of pipe that fits on the small flange of the seal case so that you are not pressing on the delicate finely finished carbon seal ring Do not damage the seal face 7 DO NOT USE PUMP EXPLOSIVE ATMOSPHERE DO NOT PUMP VOLATILE OR FLAMMABLE LIQUIDS To replace the seal component in the impeller hub lubricate the outside of the rubber boot with vegetable oil or soap and press the white ring and rubber boot into the hub using your two thumbs Be certain that the seal ring is all the way down and even with the back of the impeller so that the ring does not wobble when the impeller rotates
6. A A Gorman Rupp Company Owner s Manual Models 2S5P amp 3S5P OPERATION AND MAINTENANCE OF SELF PRIMING CENTRIFUGAL TRASH PUMPS PEDESTAL DRIVE WARNI NG NOT USE PUMP IN EXPLOSIVE ATMOSPHERE MN TRE HANE DETTU Installation amp Operating Instructions Self Priming Centrifugal Pump BASIC PUMP INSTRUCTIONS INSPECTION The pump assembly was tested and inspected before shipment Before installation inspect the pump for damage which may have occurred during shipment Check the following 1 Inspect for cracks damaged threads and other obvious damage 2 Check and tighten loose bolts nuts and other attaching hardware 3 Carefully read all warning and cautions in the manual and on tags and labels on the pump 4 Note the direction of rotation indicated on the pump Check that the pump shaft rotates counterclockwise facing the pump suction CAUTION Only operate this pump in the direction indicated by the arrow on the bearing pedestal Otherwise the impeller could become loosened from the shaft and seriously damage the pump PLACING PUMP Locate the pump as close to the liquid to be pumped as practical but never higher than 25 feet Level mounting is essential for proper operation The pump may have to be supported to provide level operation and to eliminate vibration SUCTION AND DISCHARGE PIPING Either pipe or hose may be used for suction and discharge lines If hose is used in
7. RMAN RUPP LEAD TIME Products designated Quick Ship Product also referred to as QSP will normally be shipped within 24 hours of receipt of a non cancellable purchase order Only limited quantities of QSP pumps are avail able STANDARD LEAD TIME Lead time is two weeks for all non 5 product reserves the right to revise lead times as required due to availability of materials and all other causes beyond our control VIP SHIPMENT Select AMT and IPT branded pumps are available for next day shipment for 5 Quick Ship Products items and subjected to a specific model surcharge per unit noted in the respective price book Requires calling for availability confirmation and a non cancellable purchase order or credit card payment prior to shipment The expedited shipping charges are an additional cost added separately from the VIP charges per item AMT reserves the right to revise lead times as required due to availability of materials and all other causes beyond our control 5 quantities are limited as determined by AMT ALL purchase orders must be submitted via hard copy sent to AMT customer service department by fax EDI or e mail RETURN GOODS POLICY Goods shall not be returned without a return goods authorization number RGA issued by AMT customer service The RGA number must be listed on the packing list Only current model and part numbers with a valid date code may be returned within one year from dat
8. T PREPARATION GASOLINE ENGINE DRIVEN PUMPS For complete operating and maintenance information consult the engine manufacturer s instructions included with the engine Before starting fill crankcase with oil specified by the engine manufacturer CAUTION Always remove spark plug or spark plug wire before working on unit to prevent accidental starting PUMP OPERATION This pump is self priming but the pump should never be operated unless there is liquid in the casing CAUTION The pump will not prime when dry 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 considerable length of time 3 The liquid in the pump casing has evaporated Once the pump casing has been filled the pump will prime and reprime as necessary To fill the pump remove the pump casing fill plug at the top of the casing and add clean liquid until the pump is filled Replace the fill plug before operating the pump STARTING Consult the operations manual furnished with the power source WARNING Do not use pump in explosive atmosphere Do not pump volatile or flammable liquids OPERATION Open all valves in the discharge line and start the power source Priming is indicated by a quieter operation The pump may not prime immediately because the suction line must first fill with liquid If the pump fails to prime within five minutes
9. aired or altered at any place other than by a G R Unit or by persons not expressly approved by a G R Unit to make repairs or alterations nor to any unit the serial number model number or identification of which has been removed defaced or altered C This warranty does not extend to any product manufactured by a G R Unit which has been subjected to mis use neglect accident improper installation or use in violation of instructions furnished by a G R Unit D Pump Kits This warranty does not extend to any product sold by a G R Unit unassembled as a Pump Kit Pump Kits are warranted against defects in material and workmanship for 60 days from the date of shipment from a G R Unit Any Pump Kit parts deemed defective by a G R Unit will be replaced free of charge within 60 days of shipment Pump Kits are not returnable for credit LIMITATIONS THE G R UNITS SOLE AND EXCLUSIVE WARRANTY WITH RESPECT TO THEIR PROD UCTS AND PARTS IS THIS LIMITED WARRANTY THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER EXPRESS AND OR IMPLIED WARRANTIES INCLUDING IMPLIED WAR RANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE EXCLUSIVE REMEDY AND DAMAGES The sole and exclusive remedy for breach of this Warranty by a G R Unit and the entire extent of its liability for such breach or for damages arising from the use of the products and parts covered under this Limited Warranty shall be as follows American Machine amp Tool Co Inc of PA GO
10. e of purchase A 2096 restocking and packaging charge will apply to all returns All shipping charges must be pre paid No exceptions ORDER CHANGES BY CUSTOMER Orders in process may not be changed except with written consent and may be subject to special charges 1 Repair or Replacement If inspection shows that any G R Unit product or part covered under this Limited Warranty is defective in materials or workmanship the G R Unit shall repair or replace the defective or non conforming product or part without charge whichever the G R Unit chooses You must have properly maintained and used the product or part claimed to be defective in accordance with the maintenance schedule or manual which comes with the product No allowance will be made for labor installation removal transportation or other charges incurred by you in connection with such repair or replacement 2 To obtain the above remedy A Immediately notify the G R Unit upon discovery of the claimed defect in materials or workmanship and provide the serial number or date code of the product and or part s or provide the G R Unit with the invoice or bill of sale referencing the product by no later than the expiration date of the warranty period B The G R Unit will advise whether inspection will be necessary and how whether repair or replacement will be made If inspection by the G R Unit is necessary the pump or defective part must be sent freight pre paid to the G R Uni
11. ends are the same distance apart at all points See Figure 2 FIGURE 2 Aligning Couplings Check parallel adjustment by laying a straightedge across both coupling rims at the top bottom and side When the straightedge rests evenly on both halves of the coupling the coupling is in horizontal parallel alignment If the coupling is misaligned use a feeler gauge between the coupling and the straightedge to measure the amount of misalignment V BELT DRIVES V Belt drives are not recommended WARNING Do not operate the pump without a guard over the rotating parts Exposed rotating parts can catch clothing fingers or tools causing severe injury to personnel PUMP BEARING PEDESTAL The shaft bearings are permanently lubricated by the manufacturer and sealed Routine maintenance is not required POWER UNIT PREPARATION ELECTRIC MOTORS Make certain the input power to your electric motor is proper single phase or three phase and is of the proper voltage according to the motor specification plate Be sure of the proper motor rotation Pump impeller should rotate counterclockwise looking from the suction inlet side For single phase motors consult the motor manufacturer s instructions for wiring for counterclockwise rotation Three phase motor rotation may be reversed by inter changing any two of the three power leads Make certain that wiring for your electric motor complies with all existing local codes POWER UNI
12. iece of rubber sheet or other suitable material against the suction inlet If the pump develops a strong pull against the material the trouble is not in the pump If there is no pull the shaft seal may need replacing C Examine suction hose or pipe connections Air leaks in the suction line and connection to the pump are the most frequent causes of priming trouble Use new gaskets in hose coupling New couplings sometimes require 2 gaskets Lining of hose may also become loose and clog the hose D Keep pump as close to the level of the liquid being pumped It will give best performance on suction lifts less than 15 feet E Be sure strainer is not clogged F There are no parts or valves to become clogged or out of adjustment The only requirement is that the pump case is full of liquid G Keep your pump unit clean and properly serviced Care in this respect will repay in many years of trouble free operation 17 89 PRIMING E MOTOR DRIVEN MAX 3500 RPM 24 FT 3200 RPM 24 FT 2900 RPM 18 FT e PRIMING 3500 RPM 26 FT 3200 RPM 20 FT MAX e a 7 2 1 7 1537 1 1 1 11 LLLI Y a r e Auovavo Discharge Suction 18 15 17 13 19 32 amp 33 20 9834 LI Li UL BODY FRONT 5 THREADED Parts List MODEL 2S5P 3S5P 2S5P 3S5P REF PART NAME QTY 5 8 SHAFT 5 8 SHAFT 3 4 SHAFT 3 4 SHAFT 1 PEDESTAL COMPLETE ASSY
13. on the shaft Do not damage the surface of the white ring Re assemble the pump in the reverse manner from the disassembly Use thread sealant on four 4 bolts that bolt bracket to pedastal To disassemble the bearing pedestal follow these steps 1 2 Remove the pump step 1 through 5b above Remove snap ring 43 and tap shaft out with rubber mallet or use wood block to protect shaft at impeller end Remove bearings with bearing puller or by tapping shaft off bearings Use rubber mallet or wood block to protect shaft Clean bearing bores in pedestal and shaft surfaces and apply Loctite 609 or 620 or comparable product to shaft bearing surfaces and install bearings Apply the loctite or comparable product to bearing surfaces in pedestal and install shaft and bearings in pedestal Replace snap ring and re assemble pump in reverse manner from disassembly 9 01 46 053 Specifications Information and Repair Parts Manual NOTES Specifications Information and Repair Parts Manual NOTES herein A 400 Spring Street Royersford PA 19468 Phone 610 948 3800 A Gorman Rupp Company Fax 610 948 5300 WWW amtpump com General Information SALES POLICY AMT products are sold through our established Distributors We do not sell direct to
14. s not necessary in low discharge head applications If a throttling valve is desired in the discharge line use a valve as large as the largest pipe to minimize friction losses With high discharge heads it is recommended that a throttling valve and a check valve be installed in the discharge line to protect the pump from excessive shock pressure and reverse rotation when it is stopped BYPASS LINES f it is necessary to permit the escape of air to atmosphere during initial priming or in the repriming cycle install a bypass line between the pump and the discharge check valve The bypass line should be sized so that it does not affect pump discharge capacity ALIGNMENT The alignment of the pump and its power source is critical for trouble free mechanical operation The driver and pump must be mounted on a common base so that their shafts are aligned with and parallel to each other It is imperative that alignment be checked after the pump and piping are installed and before operation WARNING When checking alignment disconnect the power source to ensure that the pump will remain inoperative COUPLED DRIVES When using couplings the axis of the power source must be aligned to the axis of the pump shaft in both the horizontal and vertical planes Most couplings require a specific gap or clearance between the driving and the driven shafts Refer to the coupling manufacturer s service literature The coupling is in alignment when the hub
15. suction lines it must be the rigid wall reinforced type to prevent collapse under suction Using pipe couplings in the suction lines is not recommended Keep suction and discharge lines as straight as possible and make minimum use of elbows and fittings to minimize friction losses THROTTLE VALVE TEE CHECK VALVE FIGURE 1 illustrates a typical installation A bypass line may be required for priming on high discharge head applications CONNECTIONS TO PUMP Before tightening a connection pipe align it exactly with the pump port Never pull a pipe line into place by tightening the flange bolts and or couplings Lines near the pump must be independently supported to avoid strain on the pump If hoses are used they should have adequate support to secure them when filled with liquid SUCTION LINES The suction line must be as short and direct as possible and the line must always slope upward to the pump from the source of the liquid The suction line should not exceed 30 feet in length Suction lines should be the same size as the pump inlet Use pipe sealant on the threads of the fittings STRAINERS strainer is furnished with the pump be certain to use it It is provided with openings small enough to prevent big stones etc from damaging the impeller Keep strainer clean If possible suspend it to keep it from working into sediment VALVES A check valve in the discharge line is normally recommended but it i
16. t Return shipment will be F O B the G R Unit s plant Return Goods Authorization Requirement No product will be accepted for return or replacement without the prior written authorization of the G R Unit Upon such authorization and in accordance with instructions from the G R Unit the product will be returned to the G R Unit shipping charges prepaid by the Buyer 3 Damages The G R Unit s liability for damages for breach of this Limited Warranty shall not exceed the amount of the purchase price of the product or part s in respect to which Such damages are claimed IN NO EVENT SHALL THE G R UNITS BE LIABLE FOR INCIDENTAL CONSEQUENTIAL OR SPECIAL DAMAGES FOR BREACH OF THIS LIMITED WARRANTY Some states do not allow the exclusion or limitation of incidental or conse quential damages so the above limitation or exclusion may not apply to you This Limited Warranty gives you specific legal rights and you may also have other rights which vary from state to state American Machine amp Tool Co Inc of PA A Gorman Rupp Company 400 Spring Street Royersford PA 19468 USA A A Gorman Rupp Company a 55111424 GORMAN RUPP www amtpump com
17. t is not in use Unscrew the drain plug and run engine or motor about half a minute without pumping STORAGE When the pump is out of service for long periods drain it and store in a dry well ventilated room Pull the engine hard against compression so that the valves will be sealed Never run pump dry for more than half a minute or the shaft seal may be damaged A DISCHARGE 1 25 USEABLE KEYWAY FOR 3 16 SQ SUCTION T 4st 460 126 23 1116 8 5 06 128 61 REF SLOTS FOR 4 72 62 112 11 115 9 ud NOTE T HANDLES USED ON TRASH PUMP MODELS 120 01 5 16 HARDWARE 2 7 3 PLACES e 1 5 10 55 3 99 13 56 9 45 REF 38 13 268 01 101 31 344 51 27 01 24011 cute 4 97 2 0 13 31 10 55 3 99 13 56 1126 21 50 81 338 1 268 01 101 31 344 51 27 01 1455 6 54 16 11 112 DIMENSIONS 369 63 283 01 166 21 409 21 28 61 mA INCHES MTG FOOT PATTERN MILLIMETERS MOUNTING DIMENSIONS TROUBLES AND THEIR CURES If difficulties are experienced in the majority of cases they can be traced to well known causes We suggest you check these points first to save needless expense If the pump fails to prime A Make sure the pump casing is full of cool liquid B If difficulty continues remove suction hose start engine and hold a flat p
18. the consumer or organization not entitled to trade recognition Therefore possession of our catalogs and or price list s does not infer an offer to sell MINIMUM ORDER We appreciate your order however all orders are subject to a minimum 35 00 net invoice charge excluding freight This applies to all pump and parts purchase orders PRICES Prices are subject to change without notice All orders accepted are subject to prices in effect at time of shipment PAYMENT TERMS Terms upon establishment of credit are Net 30 days Past due accounts may be subject to a service charge of 1 596 per month Domestic or assignable letter of credit is required for all export trade PAST DUE ACCOUNTS AMT reserves the right to withhold open account shipments on any past due account Invoices are considered past due after thirty 30 days In the interest of sound business all orders are subject to approval of the Credit Department SHIPPING INSTRUCTIONS All shipments will be made F O B the factory Where instruc tions for shipment do not appear on the order the shipment will be made according to our best judgment Full risk of loss including transportation delays and losses shall pass to the customer upon delivery of the products to the carrier at the F O B point When loss or delay occurs primary responsibility for tracing rests with the customer When there is LOSS or APPARENT VISIBLE DAMAGE to a shipment when tendered for delivery DO NOT give
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