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PUMP MODEL IDENTIFICATION 

This instruction manual covers Imo  C324AXFS-250/12004  pumps.  Model of pump is identified on pump 
nameplate.  Refer to Figure 1 and Table 1 for instructional keys when using this manual. 

C  324A   X   F   X   - 250 / 12500

Design 
Modification

Special 
Seal

Foot 
Mounting

Pump 
Series

Power Rotor 
Diameter

Special 
Customer 
Requirements

Special 
Pump Suffix 
Number

Figure 1 – Definitions of Model Designators 

ORDERING INSTRUCTIONS 

When corresponding with Imo Pump regarding the C324AXFX-250/12005 pump, refer to pump nameplate, 
this instruction manual, and assembly drawing as instructed below: 

1. From pump nameplate, record pump model number, serial number and manufactured date.

2. Record instruction manual number, revision and date.

3. From instruction 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 information to your Imo service representative.

Imo sales and service representatives are listed herein and in General Instruction Manual, SRM00046. 

F. OPERATION

F.1  LIQUID

CAUTION

 

ATTENTION

 

Never operate with thin liquids such as solvents or water.  Imo Pump has 
approved the use of this pump model on a specific process type fluid.

 

F.2  OPERATING LIMITS

CAUTION 

ATTENTION 

Operating conditions, such as speed, fluid viscosity, temperature inlet pressure, 
discharge pressure, filtration, duty cycle, drive type, mounting, etc., are 
interrelated.  Due to these variable conditions, specific application limits may be 
different from that of operational limitations.  Equipment must not be operated 
without verifying system’s operating requirements are within pump’s capabilities. 

Summary of Contents for IMO C324AXFX-12005

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 13: ...13...

Page 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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