Disassembly & assembly instructions single stage centrifugal pumps series TCHM & TCTM
2
INTRODUCTION
These instructions are for the maintenance personnel for maintenance and/or repair of the indicated pump series.
Disassembly and assembly require expertise and knowledge of the procedures, therefore the work must be carried out
by qualified personnel.
These instructions must be carefully read and understood in conjunction with the section drawings and tables contained
in the manual and enclosed, prior to attempt any work on the pumps.
For safety, installation and maintenance instructions consult the manual “INSTALLATION & OPERATING
INSTRUCTIONS FOR CENTRIFUGAL PUMPS” attached to the pump at time of shipment. Consult also any other
attached instructions for accessories and/or components included with the pumps such as mechanical seals, heat
exchangers, flushing systems, instrumentation, etc.
Before operating or working on the pump it is recommended to adopt safety precautions wearing safety attire (hat,
glasses, gloves, shoes, etc.) and have ready the necessary tools required for the work to be done.
Do not subject the pump of its components to sudden mechanical impacts and /or distortions.
Do not damage or scratch the sealing faces. Pay particular attention not to damage flat gaskets and O-Rings.
Careful not to leave foreign matters such as moults, screws, washers, rags, etc. in the pump.
When requesting spare parts or technical information for the pump, always quote the pump model number and serial
number which is printed on the pump nameplate: therefore it is recommended not to remove the pump nameplate or, in
case this action will be necessary, write the serial number on the pump (for example on the flange).
Should additional information be required, please do not hesitate to contact POMPETRAVAINI or the closest
representative. Should there be any difficulties in repairing the pump, it is recommended to send the pump for repair to
POMPETRAVAINI or the local authorised representative.
Pump repairs and/or service carried out by customer or unauthorised personnel are not guaranteed by
POMPETRAVAINI
or by its subsidiaries.
Note: Pump parts list identify all pump components by item number (VDMA) in connection with the sectional drawings.
All drawings are for reference purpose and not are certified for construction, however should additional
information be required, contact POMPETRAVAINI or its closest representative.
INDEX
1 - Steps to be followed prior to pump disassembly
2 - Disassembly and assembly
2.1
- Disassembly
2.2
- Assembly
3 - Spare
parts
4 - Section
drawings
5 - Nomenclature of pump parts
6 - Engineering
tables
The liquids handled by the pumps and also their parts could be potentially dangerous for persons and
environment: provide their eventual disposal in conformity with the laws into force and a proper
environment management.
The present manual is not assigned for pumps subjected to the ATEX 94/9/CE directive. In case the
pump is assigned in environments subjected to the application ATEX 99/92/CE directive or in case the
pump is provided with a nameplate indicating the ATEX stamp, it strictly forbidden proceed to start up
the pumps but necessary to consult POMPETRAVAINI for clarifications.
For pumps subjected to the ATEX 94/9/CE directive it is available a dedicated integrative manual.
In preparing this manual, every possible effort has been made to help the customer and operator with the proper installation and operation of the
pump. Should you find errors, misunderstandings or discrepancies please do not hesitate to bring them to our attention.
1 - STEPS TO BE FOLLOWED PRIOR TO PUMP DISASSEMBLY
Should pump repairs be required, it is recommended to acquire full familiarity of the procedures to be followed by
studying these instructions and the “Operating Manual for Centrifugal Pumps”.
FOLLOW THE SAFETY INSTRUCTIONS LISTED UNDER CHAPTER 2 OF THE AFORE MENTIONED
OPERATING MANUAL.