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H. PUMP MAINTENANCE

WARNING 

Failure to observe precautions while installing, inspecting, and maintaining the pump can 
cause injury to personnel from accidental handling of liquids that may harm skin or 
clothing, or fire hazard risks from flammable liquids, or injury from high pressure fluid jets. 

DANGER 

BEFORE

 working on equipment, make sure all power to equipment is disconnected and 

locked-out. 

H.1  GENERAL COMMENTS

NOTE:

  Part number identifiers (IDPs) contained within parenthesis such as (10) refer to the circled 

numbers shown on the assembly drawing.  See Table 2. Figure 4A and Figure 4B. 

H.2  TOOLS REQUIRED

The procedures described in this manual require common mechanics hand tools, a torque wrench, 
dial indicator and suitable lifting device (such as) slings, straps, etc. 

H.3  NYLOK FASTENER TORQUE PROCEDURE

The required torque stated on the assembly drawing does not include the additional torque required 

to install fasteners containing Nylok inserts (pellets, strip, patch, ring collar).  The torque required for 
the first application is much higher than it is for subsequent applications.  To insure the required 
preload on a Nylok fastened joint is achieved for each application, the following procedure is 
mandatory assembly practice. 

Step 1. 

Using a suitable torque wrench, install the fasteners in the mating piece until the Nylok insert 

is completely engaged.  Note the torque required. 

Step 2. 

Add the torque measured in Step 1 to the torque value called for on the assembly drawing. 

Step 3. 

Complete by tightening the fastener to the torque value determined in Step 2 above. 

I.

DISASSEMBLY PROCEDURES

Note:  To service mechanical seal, perform Section I. ONLY.

CAUTION 

Fluid leakage from disassembly of pump may make the floor slippery and can cause 
personal injury. 

NOTE: 

The C324AXFX-250/12005  pump incorporate highly finished precision parts that must be 

handled carefully to avoid damage to critical machined surfaces.  The parts removed should 
be tagged for identification and their exact positions in the pump carefully noted so that new 
parts, or the same parts, are properly replaced without damage. 

I.1  SERVICING THE MECHANICAL SEAL

The mechanical seal supplied is a Chesterton 180 Cartridge type. PP046KNK is Imo Pump’s assigned 
part number.  If a sealing problem develops, it is recommended the complete cartridge be returned to 
the nearest Chesterton repair facility for evaluation and possible rebuild or contact the Imo Pump 
Service Department for assistance. 

Содержание IMO C324AXFX-12005

Страница 1: ...FOR C324AXFX 250 12005 PUMP WARNING This Instruction Manual and General Instructions Manual SRM00046 should be read thoroughly prior to pump installation operation or maintenance of Pump SRM00110 Rev...

Страница 2: ...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 protection of the pump...

Страница 3: ...ational practices which may not be otherwise covered by this manual In applications where equipment furnished by Imo Pump is to become part of processing machinery these instructions should be thoroug...

Страница 4: ...manual record figure numbers that apply to replacement part s 4 From assembly drawing or parts list see Figure 4A 4B and Table 2 provide IDP number s and names for replacement part s 5 Give above info...

Страница 5: ...HEX CAP SCR 1 2 13 X 2 250 XX 0007 2 PP070AE PLUG 3 8 SHP 0008 1 S904ET 1X3 ROTOR HOUSING XX 0010 1 S904ET 1X4 ROTOR HOUSING XX 0011 2 S836BMX9 PIN STOP XX 0012 1 S838EJX3 SPACER 0013 1 DSC250HK ROTOR...

Страница 6: ...astened joint is achieved for each application the following procedure is mandatory assembly practice Step 1 Using a suitable torque wrench install the fasteners in the mating piece until the Nylok in...

Страница 7: ...ket head cap screws are engaged If for any reason centering clips are loosened prior to installation tighten cap screw finger tight then turn cap screw 1 8 turn roughly 20 in lbs 2 26 Nm Step 1 Assure...

Страница 8: ...using wrap the rotors with a sling to prevent accidental dropping and to assist in holding the rotors in mesh for easy removal Step 5 Remove inboard end cover bolts 2 and remove inboard end cover 17 a...

Страница 9: ...e end rotor housing 10 assuring that rotor housing end faces are fully seated against spacer 12 faces To assist in aligning housing bores install idler rotors 14 into idler bores Rotate rotor housings...

Страница 10: ...sing a parallel bridge measure and record distances Q and X on inboard end cover 17 Subtract Q from X and add 009 23 mm 60 of gasket 4 thickness to this number Set adjusting screws to this distance fr...

Страница 11: ...t 4 thickness to this number Make sure rotor housing 8 10 are seated against inboard housing adjusting screws Measure and record distance W from case 1 end flange to housing 10 end face If housing 10...

Страница 12: ...ent is not achieved Step 6 Install Chesterton 180 cartridge mechanical seal 27 per instruction in Mechanical Seal Section of this manual See Section I 1 2 K INSTALLATION ALIGNMENT AND TROUBLESHOOTING...

Страница 13: ...13...

Страница 14: ...14 Circor 1710 Airport Road PO Box 5020 Monroe NC USA 28111 5020 Tel 1 704 289 6511 Email cc circor com Web www circorpt com 2020 CIRCOR Pumps North America LLC all rights reserved...

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