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Summary of Contents for IMO CIRCOR D12DZ-250
- Page 1 INSTRUCTION MANUAL PARTS LIST FOR D12DZ-250 (3215/525) WARNING This Instruction Manual and General Instructions Manual, CA-1, should be read thoroughly prior to pump installation, operation or maintenance. October, 2021 Manual No. SRM00078 Rev. 01 (21-0001)
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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 EQUIPMENT, THE FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS MANUAL: DANGER Failure to observe the precautions noted in this box can result in severe bodily injury or loss of life. -
Page 3: General Instructions
Every effort was made to prepare the manual text so that engineering and design data is transformed into the most easily understood wording. Imo Pump must assume personnel assigned to operate and maintain supplied equipment and apply this instruction manual have sufficient technical knowledge and are experienced to apply sound safety and operational practices which may not be otherwise covered by this manual. -
Page 4: Pump Model Identification
D. PUMP MODEL IDENTIFICATION This instruction manual covers the Imo D12DZ-250 pump. The model of each pump is identified on pump nameplate. Figure 1 – Model Designation Figure 1 – Model Designation Z - 250 Z - 250 Basic Design... -
Page 5: Parts List
G. PARTS LIST Table 2 – Pump Parts List IDP QTY DESCRIPTION DESCRIPTION Case Bolt Inlet Head Spacer Bolt Ball Bearing Stop Pin Discharge Housing Dyna Seal Power Rotor Retaining Ring Plug Gasket 90° Elbow (Tube-MNPT) Suction Idler Seal Pipe Idler Cups Suction Housing Elbow... - Page 6 H.3 DISASSEMBLY PROCEDURES – See assembly drawing SPECIAL NOTE: To service mechanical seal and ball bearings ONLY perform H.3, Steps 1, 7, 8 and 9 and 10 and H.4, Steps 8, 9, 10, 11 and 12. CAUTION Fluid leakage from disassembly of pump may make floor slippery and cause personal injury.
- Page 7 Prior to reassembly of pump, all parts should be cleaned and inspected for nicks and burrs. Replace all worn or damaged parts. Imo Pump recommends replacement of all O-rings (28), gaskets (9, 84), Dyna Seal (7), mechanical seal (25) and ball bearing (49) when these parts are disturbed from their previously installed positions.
- Page 8 10. Assemble power rotor (63) and mechanical seal (25) as follows (see seal insert Figure 2). a. Install O-ring (2) in groove of mechanical seal (25) stationary seat (1). Install mechanical stationary seat (1) in seal spacer (48) ensuring that spring pin (83) is properly positioned to engage slot in seal seat.
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Page 9: Troubleshooting
For assistance with troubleshooting see General Instruction Manual, CA-1. J. FIELD AND FACTORY SERVICE AND PARTS Imo Pump maintains a staff of trained service personnel that can provide pump installation, pump start- up, maintenance/overhaul and troubleshooting supervision as well as installation and maintenance training. -
Page 10: Assembly Drawing
Figure 2 – Assembly Drawing... - Page 11 CIRCOR 1710 Airport Road PO Box 5020 Monroe, NC USA 28111.5020 Tel: +1. 877.853.7867 Email: cc@circor.com Web: www.circorpt.com © 2021 CIRCOR Pumps North America, LLC. All rights reserved.
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