salmson GET Instalacion Y Puesta En Servicio página 12

ENGLISH
- Avoid, at all costs, a parallelism defect at flanges,
which could cause a pump deformation and the
wheel friction on the casing.
- The diameter of the pipes must not be less than that
of the pump ports.
- Well position the gaskets.
5.3. Electrical connections (see FIG. 4)
The electrical connections and tests must be
made by a licensed electrician and comply with
applicable local standards.
- Electric protection of the motor mandatory for the
guarantee.
- Provide a circuit-breaker with thermal and magnetic
protection set to the current rating marked on the
motor data plate.
Power supply
- Use a cable complying with EDF standards
(4 conductors + earth).
DO NOT FORGET TO CONNECT THE EARTH
A connection error would damage the motor. The
power cable must never touch the pipe or the pump.
6. STARTING UP
6.1 Filling
Never operate the pump dry, even brefly.
- Close the discharge valve.
- Open the suction valve and fill the pump and the
suction pipe with the conveyed fluid.
- According to the group position, unscrew one of the
caps located on the bottom with cooling blades, by
a few turns, to observe that the flow is well
performed, so indicating the packing box filling is well
performed (see Fig. 2).
- Screw the cap down after this operation.
Direction of rotation
- Power up the motor and check it turns in the
direction indicated by the arrow on the data plate
- In case of reversal, reverse two phase wires on the
motor terminal block.
6.2.Adjustment of circuit-breaker
- Perform fine adjustment of the electrical protection,
using on ammeter connected to the motor
underload.
- Check that the current consumption is lower than
indicated on the motor data plate.
- With motor stopped, cut a phase, power the motor
back up and make sure the tripping is instantaneous.
6.3 Operation
Never operate the pump with no-flow condition
(discharge valve closed) for more than 5
minutes.
- In permanent operation, allow a minimum flow of
about 10 to 20% of the full capacity of the pump.
With filling performed:
- Gradually open the the discharge valve.
- Read the pressure on the pressure gauge placed on
the discharge, it should be close to zero-flow pressure
delivered by the pump.
- Drain the lining by unscrewing by a few turns one of
the drain cocks located on the bottom with cooling
blades, and then screw it on moderately after
venting (see Fig. 2).
Note: the packing cooling is performed by the blades
mounted on the discharge bottom.
This device is efficient when the group is operating as
not operating.
7. MAINTENANCE
The bearings are greased for the life.
The mechanical seal needs no servicing in operation.
Replacement frequencies
Part or component
subject to wear
Operating life
fonctionnement
Replacement continu
frequency in
duty 8 mois/an
Remark:
These are necessarily only guidelines, since the
replacement frequency depends on the operating
conditions:
• Temperature and pressure of the liquid pumped for
the mechanical seal;
• Load and ambient temperature for the motor and
other components.
• Speed for the bearings.
On any disassembly of the group, we recommend to
perform systematic replacement of the mechanical
seal and of the gaskets.
Note:
the spacer flange, motor side, has two opposite holes,
which allow (according to the group mounting)
detecting any possible leaks due to the accidental
deterioration of the mechanical seal.
8
Mechanical Motor
seal bearings
10.000 to 10.000 h
20.000 h 30.000 h max. amb. 40°C
1 to 2 years 2 to 3 years
1.5 years mini 3 years mini
Motor
winding
25 000 h
3 years
4,5 years