Circor IMO 3220/523 Product Service Manual Download Page 1

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K12DHZ-312P Pump

PRODUCT SERVICE MANUAL

Imo Part Number / BOM # 3220/523

WARNING

This manual and the “General Installation, Operation, Maintenance and
Troubleshooting Manual” (SRM00046) should be read in their entirety prior
to installing, operating or servicing this pump.

Manual No. SRM00102

Rev 01 (21-2001)

October, 2021

Summary of Contents for IMO 3220/523

Page 1: ...er BOM 3220 523 WARNING This manual and the General Installation Operation Maintenance and Troubleshooting Manual SRM00046 should be read in their entirety prior to installing operating or servicing t...

Page 2: ...fect safety for persons Safety instructions where electrical safety is involved are identified by Safety instructions which shall be considered for reasons of safe operation of the pump and or protect...

Page 3: ...n applications where equipment furnished by Imo Pump is to become part of processing machinery these instructions should be thoroughly reviewed to ensure proper fit of said equipment into overall plan...

Page 4: ...Pump regarding K12DHZ 312P pumps refer to pump nameplate this service manual and assembly drawing as instructed below 1 From pump nameplate record the pump model number serial number and manufactured...

Page 5: ...MINIMUM MAXIMUM LIQUID TEMPERATURE 0 to 275 F 18 to 135 C MAXIMUM INLET PRESSURE 150 psig MAXIMUM DISCHARGE PRESSURE 2200 psig Continuous Duty FILTRATION See General Instruction Manual SRM00046 DRIVE...

Page 6: ...D NO 242 OR EQUIVALENT THREADLOCKER PRODUCT NO 271 INSTALL CAP SCREW WITH LOCTITE 3 4 HARDENED CIRCULAR WASHER 3 4 REGULAR SPRING LOCKWASHER DETAIL A PP002DA 12 PP002ABH 12 MIN ENGAGEMENT 75 19 1 1 SE...

Page 7: ...cer 102 1 Orifice Plug X Minor Repair Kit Items XX Major Repair Kit Items Items marked X are included in Major Repair Kit H PUMP MAINTENANCE WARNING Failure to observe precautions while installing ins...

Page 8: ...ler cups 23 from suction idlers 21 6 Remove suction idlers 21 by unscrewing them from inlet end of pump Remove remaining idlers 35 from housings 73 24 by rotating power rotor 63 in a counter clockwise...

Page 9: ...d cover 46 13 Remove tube 26 from idler stop 22 14 Remove idler stop 22 from inboard cover 46 by removing bolts 81 15 Remove floating balance piston 79 from inboard cover 46 16 Remove stop pin 6 and D...

Page 10: ...on inboard cover 46 with cap screws 81 Torque cap screws to value on assembly drawing Install O ring 28 on inboard cover 46 7 Install inboard cover 46 on case 1 using bolts 4 Be sure that tube 26 line...

Page 11: ...sition disconnect seal piping 71 remove bolts 4 and rotate inlet head to desired position Install bolts 4 and torque to proper values indicated on assembly drawing Reconnect seal piping 71 20 Install...

Page 12: ...are used to repair leaking seals bad bearings and or for re assembly after pump tear down They include as applicable pump shaft seals packing all gaskets O rings and bearings Major Repair Kits are suf...

Page 13: ......

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Circor IMO 3220/523, Product Service Manual

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