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OPERATION & MAINTENANCE

MANUAL

For

Type HSC PUMPS

PATTERSON PUMP COMPANY

A GORMAN-RUPP COMPANY

PO Box 790

2129 Ayersville Road

Toccoa, Georgia 30577, USA

Telephone: 706-886-2101

Revision 2

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Summary of Contents for HSC

Page 1: ...OPERATION MAINTENANCE MANUAL For Type HSC PUMPS PATTERSON PUMP COMPANY A GORMAN RUPP COMPANY PO Box 790 2129 Ayersville Road Toccoa Georgia 30577 USA Telephone 706 886 2101 Revision 2 ...

Page 2: ...perative any safeguards or protective devices avoid extended exposure in close proximity to machinery with high noise levels use proper care and procedures in handling lifting installing operating and maintaining the equipment do not modify this equipment consult factory if modification is deemed necessary do not substitute for repair parts which can be provided by the equipment manufacturer Safe ...

Page 3: ...gnment 2 3 4 Wiring and Controls 3 SECTION IV Operation 4 1 Starting 3 4 2 Shutdown 4 SECTION V Maintenance 5 SECTION VI Repairs Replacement 6 1 To Remove Rotor 7 6 2 Disassembly of Rotating Element 7 6 3 Cleaning 8 6 4 Inspection 8 6 5 Assembly 8 Locating Operation Difficulties 9 Recommended Spare Parts 11 Typical Assembly Section 12 Notes 13 ...

Page 4: ...pumps are shop serviced and ready for operation when delivered but there are occasions when considerable time elapses between the delivery date and the time the pump is put into operation Equipment which is not in service should be kept in a clean dry area If equipment is to be stored for long periods of time six months or more the following precautions should be taken to insure that the equipment...

Page 5: ...g of the base plate piping strains a shift of the pump or drive on the foundation When checking coupling alignment remember flexible couplings are not intended to be used as universal joints The purpose of a flexible coupling is to compensate for temperature changes and to permit end movement of the shafts without interference with each other Two types of misalignment may exist parallel misalignme...

Page 6: ...iring and Controls The electric motor power supply connections must conform to national and local codes The motor ratings stamped on the motor nameplate must match the line voltage and wire capacity DO NOT USE ANY OTHER VOLTAGE SECTION IV OPERATION CAUTION Do not exceed the rated working pressure of the pump The sum of the suction pressure and the maximum pump operating head converted to units of ...

Page 7: ...e same as the direction arrow on the case CAUTION Do not operate without liquid Pump seals depend on the liquid being pumped for lubrication Make sure pump is primed and that no air is in the suction piping and the pump case Make sure all valves open or closed as required by your specific requirements Start driver Open discharge valve slowly when the pump is up to speed CAUTION Overheating and or ...

Page 8: ...mount of Grease Number of Strokes 8 8 12 12 The bearing group for a pump is the suffix in the model designation For example model S8A12A 3 uses bearing group 3 These values are for a typical grease gun having a capacity of 1 ounce 30 cc of grease per 30 strokes IMPORTANT The number of strokes should be adjusted according to the actual grease gun used These relubrication intervals are based on bear...

Page 9: ...pect the running clearances and restore them to original specifications if the running clearances have doubled install new wear rings Anytime a pump is opened inspect the impeller for corrosion or excessive wear Mechanical seal should be no leakage Drain lines are working properly Coupling integrity Operate the pump Tightness of foundation and hold down bolts Check coupling alignment and integrity...

Page 10: ...gs around the shaft near the bearing locations and lift the rotating element from the lower casing 1A 8 Place rotating element in a clean dry work area for necessary disassembly Case wear rings 7 will be loose on assembly 6 2 Disassembly of Rotating Element 1 Remove the case wear rings 7 that will be loose on the assembly 2 Remove the screws holding the bearing housings 31 33 to the bearing covers...

Page 11: ... OD of impeller hub and ID of pump casing Compute diametrical clearance ID minus OD and compare with the original pump specifications Surfaces must be smooth and concentric Examine impeller passages for cracks dents or embedded material Examine shaft sleeves for wear 6 5 Reassembly The following should prove helpful in reassembling the pump 1 All parts inside and out should be clean Dirt and grit ...

Page 12: ... hydraulic passages 15 Place the parting flange gasket 73 into position onto the lower casing half 1A 16 Before placing the upper casing half 1B into position place a 1 8 to 3 16 3 to 5 mm bead of Permatex Ultra Blue RTV Silicone Product No 77B or equivalent sealant on top of the parting flange gasket inside the perimeter of parting flange bolt locations and adjacent to the hydraulic passages 17 L...

Page 13: ...ht be caused by low voltage or current characteristics different from nameplate reading on the motor Air in water will cause the pump to make a cracking noise Mechanical defects worn casing rings impeller damaged defective casing or seal Intermittent Operation Leaky suction line Water seal plugged hence a leaky stuffing box Suction lift too high Air gas or vapor in liquid Pump Overloads Driver Spe...

Page 14: ...s Coupling and its accessories not shown Permatex Ultra Blue RTV Silicone Product No 77B or equivalent sealant Dow Corning 111 Valve lubricant Sealant or equivalent Dow Corning 732 Multi Purpose Sealant or equivalent CONTINUOUS DUTY Number Description 2 Impeller 6 Shaft 7 Casing Ring 14 Shaft Sleeves 16 Bearing inboard 18 Bearing outboard Bearing Retaining Rings Shaft Sleeve Retaining Rings 65 Mec...

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Page 16: ...13 Notes ...

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