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PRODUCT SERVICE MANUAL
The Imo General Installation Operation, Maintenance, and
Troubleshooting Manual, (No. SRM00046), as well as all other
component manuals supplied with these type units should be read
thoroughly prior to pump installation, start-up, operation, maintenance
or troubleshooting.
SRM00051
FOR
CIG Mechanical Seal
Double Pumps
WARNING
REV. 03 (14-0302)
AUGUST, 2014
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Table of Contents
Summary of Contents for Colfax CIG Mechanical Seal
- Page 1 PRODUCT SERVICE MANUAL CIG Mechanical Seal Double Pumps WARNING The Imo General Installation Operation, Maintenance, and Troubleshooting Manual, (No. SRM00046), as well as all other component manuals supplied with these type units should be read thoroughly prior to pump installation, start-up, operation, maintenance or troubleshooting.
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Page 2: Table Of Contents
READ THIS ENTIRE PAGE BEFORE PROCEEDING FOR THE SAFETY OF PERSONNEL AND TO PREVENT DAMAGE TO THE EQUIP- MENT, THE FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS MANUAL: D A N G E R Failure to observe the precautions noted in this box can result in severe bodily injury or loss of life. -
Page 3: General Instructions
C. DESCRIPTION OF EQUIPMENT The CIG mechanical seal double pumps are positive displacement, internal gear pumps consisting of a single shaft that runs through the center of pump housings. This shaft drives the external gears (pinion gears) which in turn drives the internal gears (ring gears). -
Page 4: Pump Model Identification
D. PUMP MODEL IDENTIFICATION This instruction manual covers the Imo CIG mechanical seal double pump design. The model of each pump is identified on the pump nameplate. Refer to Figure 1 for instructional keys when using this manual. Double Pump Model Key: CIG 52 050/32 012 RL I/D/E P/W... -
Page 5: Ordering Instructions
E. ORDERING INSTRUCTIONS When corresponding with Imo Pump regarding CIG Single Series pumps, refer to the pump nameplate, this instruction manual, and the assembly drawing as instructed below: 1. From pump nameplate, record the pump model number. Also record the manufactured lot number and date (these are stamped on the housing near the nameplate). - Page 6 CAUTION ATTENTION Take care not to damage either faces that are being pried against or 0-ring (10) with prying device. CAUTION ATTENTION If gear housing (7) will not slide off easily because its bushing (53) was seized on shaft (6), ball bearing (31) was most likely damaged when housing (7) was pried off and must be replaced.
- Page 7 10. Remove O-ring (90) from front cover (1) if it did not come off with last housing removed. 11. Remove socket head capscrews (75) and bearing retainer (70) with lip seal (32), where applicable. 12. If lip seal (32) is included in the bearing retainer (70) and it is to be replaced, remove it from the bearing retainer (70) and discard.
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Page 8: Inspection Of Parts
23. Loosen set screw and remove rotating part of mechanical seal (51) from shaft (006). CAUTION ATTENTION Take great care not to touch or damage the rotating face of the seal (051). This seal face is very sensitive to chipping and/or scratching. 24. - Page 9 3. Machine face (A) deep enough to remove any scored material. Ensure that face is flat within .0008 inch TIR with a 32 micro inch finish. CAUTION ATTENTION Being out of flat in excess of .0008” can cause pump failure. NOTE: If more than .015”...
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Page 10: Spare Parts And Kits
J. SPARE PARTS AND KITS Back Pump Back Pump *Round Hsg. *Square Hsg. Square Hsg. Round Hsg. IDP Qty. Description Seal Kit Shaft Kit & Gear Kit & Gear Kit & Gear & Gear Set Kit Set Kit Front Cover Front Pump Square Gear Housing Intermediate Flange Shaft... - Page 11 K. REASSEMBLY OF PUMP Refer To Assembly 1 CAUTION ATTENTION READ THIS ENTIRE PROCEDURE BEFORE ASSEMBLING PUMP. NOTE: Inspect all running surfaces for scratching, scoring and wear prior to assembly of pump. Minor scratching is acceptable. If parts are heavily scratched or scored, they should be replaced. Thoroughly clean all pump components.
- Page 12 CAUTION ATTENTION Take extreme care not to damage seal mating face or O-ring during assembly. Do not touch seal face with any tools. After installation, clean face with solvent and soft, lint free cloth. CAUTION ATTENTION If seal mating face is not bottomed out in bore of bearing housing (9), seal could be severely damaged.
- Page 13 17. Re-install bearing retainer (70) onto bearing housing (9) with cap screws (75). Tighten capscrews with torque wrench per assembly drawing torque values. 18. Install dowel pin (37) in front cover (1). 19. Install O-ring (90) in face of front cover (1). 20.
- Page 14 CAUTION ATTENTION If key (21) has a step, install key (21) with step facing up and away from back face of previous stage. CAUTION ATTENTION When key (21) is installed and pushed up toward drive end, there must be an approximately.020"...
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Page 15: Troubleshooting
37. Install coupling key (36) in keyway of shaft (6). CAUTION ATTENTION Take care not to bump shaft during storage, transportation, or installation of pump into operating system. TROUBLESHOOTING For assistance with troubleshooting, see General Instruction Manual CA-1. - Page 16 :31) (33) (70: :3B}- TORQUE TO 40±2 LB IN "X2" TORQUE TABLE FRAME BOLT PUMP TORQUE SIZE SIZE MODIFICATION LB FT 30±2 (41) (12) (11) (53) (37) (74) (BO) :s3l 60±5 115±10 17}- SEE TORQUE CHART @TORQUE T040±2 LB IN 220±15 OUTLET FOR SIZES 3, 4...
- Page 17 Imo Pump 1710 Airport Road PO Box 5020 Monroe, NC USA 28111.5020 Tel: +1.704.289.6511 Toll: +1.877.853.7867 Email: cc@colfaxcorp.com colfaxcorp.com © 2012 Colfax Fluid Handling all rights reserved.
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