M Pumps V MODULAR Series, User Manual

Page: 21 / 32

Doc. ISM0023 Instruction Manual of series V MODULAR – Rev.02 Pag. 21/32
REPAIR AND PARTS REPLACEMENT
The pump must always be kept in optimum conditions of operation.
Most of the spare parts have clear and comprehensive references for their identification
.
It is important that the
spares are replaced by similar ones so that they can be considered equivalent in quality and safety: to order
original spare parts, contact
M PUMPS
referring to the model of the pump, employee number, description of the
component and the quantity needed
.
When you see elements with rust, cracks, etc, you must perform all replacements/repairs necessary to re-
establish the conditions of the pump safe working. In any case you should always ask an opinion
M PUMPS
before any intervention.
The periodic maintenance specified in the“ PERIODIC AND EXTRAORDINARY
MAINTENANCE”
To allow a smooth running for a long time is necessary to make the required maintenance.
Operators should make frequent visual inspections to check that the pump is running smoothly without noise or
vibration, and that the discharge pressure is holding steady, without fluctuation, at the correct figure. Over-
heating of the pump or motor bearings is cause for alarm. The bearing housing should not be more than 50°C
above ambient temperature, nor should it exceed 80°C (too hot to touch) in any event. If the bearings overheat,
shut the pump down immediately, investigate the cause, and take corrective action.
Pump disassembling
The maintenance and disassembly procedure are intended for use during standard field inspection or service.
Pumps contain very strong magnets. The use of a non metallic work surface is highly recommended.
In case the pump has handled hot liquids, make sure that it cools down before disassembly. The pump could
have handled dangerous or toxic liquids: it is therefore necessary to wear protection for the skin and the eyes.
The liquid must be recovered and eliminated according the existing environmental laws.
In case the pump has to be sent back to the manufacturer to be reconditioned, in case it pumped aggressive or
toxic liquids, the same has to be thoroughly drained and cleaned by the customer.
Bring in mind the instructions described in Chapter 9 "Periodic preventive maintenance ", disassemble as follows:
Pump reassembling
To reassemble the pump, follow the instructions in reverse order.
Thoroughly clean every component before assembly, make sure all parts are free of dirt, metal particles, etc.
CAUTION
During the first assembly, or reassembly of the pump, it is recommended to apply the low
strength thread locker (AREXONS 52A22 - LOCTITE 222 or equivalent) on the locking nut
of the external magnet to prevent unscrewing problems.
DECOMMISSIONING, DISMANTLING AND DISPOSAL OF MATERIALS
Decommissioning
For an eventual long time decommissioning, it is advisable to apply some simple precautions to preserve correctly
the pump.
Make the pump run with clean water (or other suitable solvent compatible with the materials of the pump) for
several minutes, in order to avoid the risk of liquid precipitation or deposits. Disconnect from the electric power /
liquid supply and place it in a protected site
.
During the commissioning after a long period of stocking, carefully follow all recommendations for commissioning
described at beginning of this manual
CAUTION
A good stocking will guarantee against unpleasant incidents during the restarting of the
pump. M PUMPS disclaims any responsibility for machines stored incorrectly. If you
intend to stop using this pump it is recommended to make it inoperative.