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Product Service Manual 

 

For 

 

AA3G Series Pumps 

 

Size 187 Through 250

 

 

 

 

WARNING

 

 

The IMO General Installation Operation, Maintenance and Troubleshooting 
Manual, (No. SRM00046), this manual, and associated component manuals supplied 
with the unit should be read thoroughly prior to pump installation, start-up, 
operation, maintenance or troubleshooting.

 

 

 

 

 

 

Manual No. SRM00074

 

Rev. 06 (20-0051)

 

February 2020

 

 

Summary of Contents for AA3G/NVPKFB187SP000

Page 1: ...Installation Operation Maintenance and Troubleshooting Manual No SRM00046 this manual and associated component manuals supplied with the unit should be read thoroughly prior to pump installation star...

Page 2: ...this box could cause damage or failure of the equipment Non compliance of safety instructions identified by the following symbol could affect safety for persons Safety instructions where electrical s...

Page 3: ...ough 250 Imo Pumps This pump series has been designed for general use in lubricating seal and distillate fuel oil applications Size and construction of each pump is identified in model number on pump...

Page 4: ...ure filtration duty cycle drive type mounting etc are interrelated Due to these variable conditions specific application limits may be different from operational limitations This equipment must not be...

Page 5: ...y 4 1 Inboard Cover 21 4 Bolt Foot Mt Pumps Only 7 1 Shaft 26X 1 Inlet Cover O Ring 8 2 Idler Rotor 31X 1 Inboard Cover O Ring 11X 1 Ball Bearing 47 1 Pipe Plug 2 on Weep Hole Pumps 13 1 Key 95 1 Pin...

Page 6: ...CAUTION ATTENTION Fluid leakage from disassembly of pump may make floor slippery and cause personal injury The following steps are required before starting any maintenance action A De energize and loc...

Page 7: ...it is withdrawn from housing so the idlers will not be dropped on floor 3 Remove power rotor 7 and idlers 8 by grasping shaft of power rotor and easing it out of housing 1 Set rotors aside 4 For Elast...

Page 8: ...n power rotor 7 3 Before installing seal 16 insure power rotor 7 shaft is clean and has no burrs or sharp edges 4 If seal has elastomeric rubber bellows see figure 2 apply light film of oil to bore of...

Page 9: ...tup For detailed instructions regarding installation alignment operation and trouble shooting see General Installation Operation Maintenance Troubleshooting Manual CA 1 FIELD AND FACTORY SERVICE AND P...

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Page 12: ...2 CIRCOR 1710 Airport Road 28110 PO Box 5020 Monroe NC USA 28111 5020 Tel 1 877 853 7867 Fax 1 704 289 9273 Email cc circor com Web www circorpt com 2020 CIRCOR Pumps North America LLC All rights rese...

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