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GORMAN-RUPP PRIME-AIRE PA4B Series Maintenance And Repair With Troubleshooting
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GORMAN-RUPP PRIME-AIRE PA4B Series Maintenance And Repair With Troubleshooting

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Use With: OM -- 04402
PUBLICATION NUMBER MR-- 04835
March 25, 1998
Rev. A 04/23/99
PRIME-AIREr r r r SERIES
PA4B Model Pumps
(Including Model 64B Pump Ends)
THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO
GORMAN-RUPP OF CANADA LIMITED
ST. THOMAS, ONTARIO, CANADA
D
Printed in U.S.A.
E
Copyright by the Gorman-Rupp Company

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Summary of Contents for GORMAN-RUPP PRIME-AIRE PA4B Series

  • Page 1 March 25, 1998 Rev. A 04/23/99 PRIME-AIREr r r r SERIES PA4B Model Pumps (Including Model 64B Pump Ends) THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A. Copyright by the Gorman-Rupp Company...
  • Page 2 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 MR-- 04835 PA SERIES PUMPS INTRODUCTION Thank You for purchasing a Gorman-Rupp Prime- As described on the following page, this manual Airer Series priming-assisted pump. Read this will alert personnel to known procedures which re- manual carefully to learn how to safely maintain quire special attention, to those which could dam- and service your pump.
  • Page 4 Gorman-Rupp’s support program for customers Please record the pump model and serial number who operate and maintain their equipment as de- in the spaces provided below. Your Gorman-Rupp scribed in this and the other accompanying litera- distributor needs this information when you require ture.
  • Page 5 MR-- 04835 PA SERIES PUMPS SAFETY --- SECTION A following information applies 3. Allow the pump to completely cool throughout this manual to Gorman- if overheated. 4. Check the temperature before Rupp Prime Airer r r r Series pumps. opening any covers, plates, or This manual will alert personnel to plugs.
  • Page 6 PA SERIES PUMPS MR-- 04835 hose connections are tight, properly approved by Gorman-Rupp. Use of non- supported and secure before operation. authorized parts may result in damage to the equipment and/or injury to personnel and will invalidate the warranty. Do not remove plates, covers, gauges, pipe plugs, or fittings from an over- heated pump.
  • Page 7 MR-- 04835 PA SERIES PUMPS TROUBLESHOOTING --- SECTION B 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 discon- nect the positive battery cable or take other precautions to ensure that the pump will remain inoperative.
  • Page 8 MR-- 04835 PA SERIES PUMPS TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Eductor clogged. Check and clean eductor. PUMP STOPS OR FAILS TO DELIVER Air leak in suction line. Correct leak. RATED FLOW OR Lining of suction hose collapsed. Replace suction hose. PRESSURE Leaking or worn seal or pump gasket.
  • Page 9 MR-- 04835 PA SERIES PUMPS TROUBLE POSSIBLE CAUSE PROBABLE REMEDY Cavitation in pump. Reduce suction lift and/or friction EXCESSIVE NOISE losses in suction line. Record vac- uum and pressure gauge readings and consult local representative or factory. Pumping entrained air. Locate and eliminate source of air bubble.
  • Page 10 Gorman-Rupp pump. For specific questions con- For new applications, a first inspection of wearing cerning your application, contact your Gorman- parts at 250 hours will give insight into the wear rate Rupp distributor or the Gorman-Rupp Company.
  • Page 11 For the approximate weight of your pump, refer to troubleshooting instructions required to properly the pump specification data sheet or contact your diagnose operational problems. Maintenance in- Gorman-Rupp distributor or the Gorman-Rupp structions within this manual are limited to the Company. MAINTENANCE & REPAIR...
  • Page 12 MR-- 04835 PA SERIES PUMPS SECTION DRAWING C---1. PA4B60---(SAE3/10 And SAE4/10) Pump Assembly PAGE C -- 2 MAINTENANCE & REPAIR...
  • Page 13 MR-- 04835 PA SERIES PUMPS PA4B60---(SAE3/10 And SAE 4/10) Pump Assembly Part Identification List Refer to the separate Parts List Manual for serviceable parts, part numbers and quantities. ITEM PART NAME 64B60---(SAE 3/10 OR SAE 4/10) PUMP END ASSEMBLY GASKET STUD HEX NUT LOCKWASHER...
  • Page 14 MR-- 04835 PA SERIES PUMPS SECTION DRAWING Figure C---2. 64B60---(SAE 3/10 And SAE 4/10) Pump Assembly PAGE C -- 4 MAINTENANCE & REPAIR...
  • Page 15 MR-- 04835 PA SERIES PUMPS 64B60---(SAE 3/10 And SAE 4/10) Pump Assembly Part Identification List Refer to the separate Parts List Manual for serviceable parts, part numbers and quantities. ITEM PART ITEM PART NAME NAME PUMP CASING BEARING RETAINER IMPELLER BEARING RETAINING RING MECHANICAL SEAL DOUBLE ROLLER BEARING...
  • Page 16 MR-- 04835 PA SERIES PUMPS SECTION DRAWING VALVE DETAIL SEE VALVE DETAIL Figure C---3. Peeler Type Priming Valve PAGE C -- 6 MAINTENANCE & REPAIR...
  • Page 17 MR-- 04835 PA SERIES PUMPS Peeler Type Priming Valve Part Identification List Refer to the separate Parts List Manual for serviceable parts, part numbers and quantities. ITEM PART ITEM PART NAME NAME PRIMING CHAMBER LID PRIMING CHAMBER PEELER VALVE NECK GUIDE PLATE LOCKWASHER FLAT HD CAPSCREW...
  • Page 18 MR-- 04835 PA SERIES PUMPS PUMP AND SEAL DISASSEMBLY unit. Therefore, it is the responsibility of the owner/maintenance personnel to AND REASSEMBLY ensure that only safe, established main- tenance procedures are used, and that Review all SAFETY information in Section A. any procedures not addressed in this Follow the instructions on all tags, label and de- manual are performed only after estab-...
  • Page 19 Disengage the hardware (9 Use only replacement parts provided or and 10) and remove the valve strap. approved by Gorman-Rupp. Use of non- authorized parts may result in damage to To remove the check valve assembly (26), disen- the equipment and/or injury to personnel gage the hardware (3 and 4).
  • Page 20 MR-- 04835 PA SERIES PUMPS Impeller Removal Pump Casing Removal (Figure C-- 2) (Figure C-- 2) Support the pump casing using a suitable hoist Before attempting to remove the impeller (2), re- and sling and remove the hardware securing the move the pipe plug (32) and drain the seal cavity.
  • Page 21 MR-- 04835 PA SERIES PUMPS pling must be replaced. To remove the ring, disen- gage the hardware (15 and 16) securing it to the fly- wheel. To prevent damage during removal from Inspect the pilot bushing (21) and, if replacement is the shaft, it is recommended that the bear- required, use a suitable puller to remove it from the ing be cleaned and inspected in place.
  • Page 22 MR-- 04835 PA SERIES PUMPS Shaft and Bearing Reassembly and Installation NOTE If a hot oil bath is used to heat the bearing, both the (Figure C-- 2) oil and the container must be absolutely clean. If the oil has been previously used, it must be thor- Clean and inspect the bearing as indicated in oughly filtered.
  • Page 23 MR-- 04835 PA SERIES PUMPS NOTE After the bearing is installed on the shaft, pack the bearing by hand (or use a bearing packer if avail- The flexible portion of the coupling must be proper- able) with No. 0 lithium base grease until the bear- ly positioned on the shaft.
  • Page 24 MR-- 04835 PA SERIES PUMPS Secure the intermediate to the engine bellhousing with the previously removed hardware (12 and 13). Pump Casing Installation Most cleaning solvents are toxic and (Figure C-- 2) flammable. Use them only in a well ven- tilated area free from excessive heat, If the balance ring (40) was removed, position the sparks, and flame.
  • Page 25 MR-- 04835 PA SERIES PUMPS PUMP CASING SPRING RETAINER SPRING HOLDER O-RINGS IMPELLER SHAFT SLEEVE IMPELLER O-RING IMPELLER SHAFT SLEEVE SHAFT OIL SEALS IMPELLER SHIMS DRIVE BAND STATIONARY SEAT BELLOWS ROTATING ELEMENT STATIONARY ELEMENT Figure C---5. 46512---048 Seal Assembly mediate with the hardware (35 and 36). Lubricate the shaft sleeve O-ring (51 ) and slide it onto the shaft until it seats against the shaft shoul- This seal is not designed for operation at...
  • Page 26 MR-- 04835 PA SERIES PUMPS For maximum pump efficiency, the impeller should be centered within the volute scroll. The balance ring must seat squarely in the To verify the impeller positioning, measure the pump casing and impeller as shown in Figure C-6. suction head;...
  • Page 27 MR-- 04835 PA SERIES PUMPS strip meet at a 45_ angle. Install the valve cap gasket and secure the cap with the previously removed hardware. Lower the float into the priming chamber and se- Support the discharge check valve assembly (6) cure the lid with the previously removed capscrews using a sling and a suitable lifting device.
  • Page 28 MR-- 04835 PA SERIES PUMPS tioned horizontally to provide proper drainage. bearing retainer (28) as grease is added. If old grease is forced out as new grease is added, the bearing cavity is full and should When lubricating a dry seal cavity, add approxi- be disassembled and cleaned immediate- mately 6 quarts (5,7 L).
  • Page 29 For U.S. and International Warranty Information, Please Visit www.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 ST. THOMAS, ONTARIO, CANADA...

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