Disassembly & assembly instructions single stage centrifugal pumps series TCHM & TCTM
2
INTRODUCTION
These instructions are f or the m aintenance per sonnel f or m aintenance and/or r epair of the indic ated pum p s eries.
Disassembly and assembly require expertise and k nowledge 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 s afety, ins tallation and m aintenance ins tructions c onsult the manual “INSTALLATION & OPERATING
INSTRUCTIONS FOR CENT RIFUGAL PUMPS” attac hed to the pump at tim e of s hipment. Cons ult als o any other
attached ins tructions f or ac cessories and/or c omponents inc luded w ith the pum ps s uch as mechanical seals, heat
exchangers, flushing systems, instrumentation, etc.
Before operating or working on the pum p it is r ecommended to adopt s afety pr ecautions w earing s afety attir e ( 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 pum p, always quote the pum p model number and s erial
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 inf ormation be r equired, pleas e do not hes itate to c ontact PO MPETRAVAINI 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 r epairs and/or s ervice c arried out by c ustomer or unauthor ised per sonnel ar e not guar anteed 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 dr awings ar e f or r eference pur pose and not are certified f or c onstruction, how ever s hould 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 pum ps and als o their parts could be potentially dangerous for persons and
environment: provide their eventual disposal in c onformity w ith the law s into f orce and a pr oper
environment management.
The present manual is not as signed 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 nam eplate indicating the AT EX stamp, it s trictly 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 operat or with the proper i nstallation 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 pum p r epairs be r equired, it is r ecommended to ac quire f ull f amiliarity of the pr ocedures to be followed by
studying these instructions and the “Operating Manual for Centrifugal Pumps”.
FOLLOW T HE SAFET Y INSTRUCTIONS LIST ED UNDER CHAPT ER 2 OF T HE AFORE MENT IONED
OPERATING MANUAL.