GORMAN-RUPP PUMPS PRIME-AIRE PA6B Series Maintenance And Repair With Troubleshooting

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Use With: OM -- 04402

PUBLICATION NUMBER MR-- 04836

March 30, 1998

Rev. A 04/26/99

PRIME-AIREr r r r SERIES

PA6B Model Pumps

(Including Model 66B Pump End)

THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO

GORMAN-RUPP OF CANADA LIMITED

ST. THOMAS, ONTARIO, CANADA

Printed in U.S.A.

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Summary of Contents for GORMAN-RUPP PUMPS PRIME-AIRE PA6B Series

Page 1 Use With: OM -- 04402 PUBLICATION NUMBER MR-- 04836 March 30, 1998 Rev. A 04/26/99 PRIME-AIREr r r r SERIES PA6B Model Pumps (Including Model 66B Pump End) THE GORMAN-RUPP COMPANY D MANSFIELD, OHIO GORMAN-RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A.
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-- 04836 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 PA SERIES PUMPS MR-- 04836 Seal Reassembly and Installation ......... . . PAGE C --- 14 Impeller Installation .
Page 5 MR-- 04836 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-- 04836 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-- 04836 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-- 04836 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-- 04836 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 MR-- 04836 PA SERIES PUMPS Preventive Maintenance Schedule Service Interval* Item Daily Weekly Monthly Semi- Annually Annually General Condition (Temperature, Unusual Noises or Vibrations, Cracks, Leaks, Loose Hardware, Etc.) Pump Performance (Gauges, Speed, Flow) Bearing Lubrication Seal Lubrication (And Packing Adjustment, If So Equipped) V-Belts (If So Equipped) Air Release Valve Plunger Rod (If So Equipped)
Page 11 MR-- 04836 PA SERIES PUMPS PUMP MAINTENANCE AND REPAIR --- SECTION C Review all SAFETY information in Section A. pump hydraulic, priming and drive components only. The pump assembly may be close-coupled to Follow the instructions on all tags, label and de- either a factory-supplied or customer-supplied en- cals attached to the pump.
Page 12 MR-- 04836 PA SERIES PUMPS SECTION DRAWING C---1. PA6B60---(SAE 3/11.5) Pump Assembly PAGE C -- 2 MAINTENANCE & REPAIR...
Page 13 MR-- 04836 PA SERIES PUMPS PA4B60---(SAE 3/11.5) Pump Assembly Part Identification List Refer to the separate Parts List Manual for serviceable parts, part numbers and quantities. ITEM PART NAME 66B60---(SAE 3/11.5) PUMP END ASSEMBLY GASKET STUD HEX NUT CHECK VALVE ASSEMBLY HEX HD CAPSCREW HEX NUT GASKET...
Page 14 MR-- 04836 PA SERIES PUMPS SECTION DRAWING Figure C---2. 66B60---(SAE 3/11.5) Pump Assembly PAGE C -- 4 MAINTENANCE & REPAIR...
Page 15 MR-- 04836 PA SERIES PUMPS 66B60---(SAE 3/11.5) 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 HEX HD CAPSCREW IMPELLER LOCKWASHER MECHANICAL SEAL OIL CHAMBER PLATE IMPELLER ADJ SHIM SET OIL CHAMBER PLATE O-RING...
Page 16 MR-- 04836 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-- 04836 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-- 04836 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 MR-- 04836 PA SERIES PUMPS Discharge Check Valve Removal and Disassembly (Figure C-- 1) Use only replacement parts provided or Support the discharge check valve assembly (5) approved by Gorman-Rupp. Use of non- using a sling and a suitable lifting device. Remove authorized parts may result in damage to the hardware (6 and 7) and separate the discharge the equipment and/or injury to personnel...
Page 20 MR-- 04836 PA SERIES PUMPS capscrews in the tapped holes in the impeller and the casing feet. Tie and tag the shims for ease of use a suitable puller to remove the impeller from reassembly. Remove the casing gasket (8). the shaft.
Page 21 MR-- 04836 PA SERIES PUMPS in cleaning solvent. Inspect the parts for wear or damage and replace as necessary. Shaft and bearing disassembly in the field is not recommended. These operations should be performed only in a properly- Most cleaning solvents are toxic and equipped shop by qualified personnel.
Page 22 MR-- 04836 PA SERIES PUMPS the shaft, it is recommended that the bear- NOTE ing be cleaned and inspected in place. It If a hot oil bath is used to heat the bearing, both the is strongly recommended that the bearing oil and the container must be absolutely clean.
Page 23 MR-- 04836 PA SERIES PUMPS the intermediate bore until the bearing seats squarely against the bore shoulder. If removed, install the retaining ring (16) in the Make certain that the metal hub portion of groove in the oil chamber plate (28). Install a new the coupling is mounted as shown in Fig- O-ring (29) in the groove in the oil chamber plate ure C---2.
Page 24 MR-- 04836 PA SERIES PUMPS Install the casing gasket (8) over the studs (35). failure. If necessary to reuse an old seal in an emer- Position the pump casing over the shaft and gency, carefully wash all metallic parts in fresh against the intermediate.
Page 25 MR-- 04836 PA SERIES PUMPS RETAINER PUMP CASING SPRING O-RING IMPELLER IMPELLER IMPELLER SHAFT SLEEVE SHAFT DRIVE BAND SHAFT SLEEVE IMPELLER O-RING SHIMS STATIONARY BELLOWS SEAT ROTATING ELEMENT Figure C---5. 25271---984 Seal Assembly hardware (35 and 36). Lubricate the shaft sleeve O-ring (6) and slide it onto the shaft until it seats against the shaft shoul- This seal is not designed for operation at der.
Page 26 MR-- 04836 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 suction head; otherwise binding and/or ex- pump casing and impeller as shown in Figure C-6. cessive wear will result.
Page 27 MR-- 04836 PA SERIES PUMPS Discharge Check Valve Assembly And (17) to the valve strap bracket assembly (23) with Installation the hardware (11 and 12). (Figure C-- 1) Apply 3-M Scotchgrip Adhesive No. 847” or equiv- alent compound to the gasket strip (8) and install it The flapper and gasket are the only serviceable in the groove in the priming chamber lid (1).
Page 28 MR-- 04836 PA SERIES PUMPS 30 non-detergent oil through the hole for the air vent (10). Do not over-lubricate.. Observe the area between the shaft and bearing retainer (17) as grease is added. If NOTE old grease is forced out as new grease is The white reflector in the sight gauge must be posi- added, the bearing cavity is full and should tioned horizontally to provide proper drainage.
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...

This manual is also suitable for:

Prime-aire pa6b60 Prime-aire 66b60