caprari K+ Serie Manual De Uso Y Mantenimiento página 30

K.M150N.. / K.M100N.. / K.W100N.. / K.D200N.. / K.M200P.. / K.D250P..
21. PREVENTIVE MAINTENANCE INSPECTIONS
To ensure regular pump operation and long life, the purchaser must ensure that regular inspections and periodic maintenance operations are carried
out, with replacement of any worn parts. It is advisable to carry out the below listed preventive inspections at least once a month, or after every 200-
300 hours service:
- check that the power supply voltage is within the established values;
- check that the noise and vibration levels are unchanged, in relation to optimum first start-up conditions;
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- using an amperometric clamp, check that the power drawn on the three phases are balanced and that they do not exceed the data plate values;
- check the motor insulation: detach the power cable from the panel and connect the joined cable terminals and the ground cable to the terminals of
a 500 V.d.c. ohmmeter. The insulation resistance (motor-cable) must not be less than 5 MΩ. Failing this, pull out the unit and overhaul (a cable will
need replacing or the motor must be repaired).
Further inspections for electric pumps equipped with the following devices:
- check the oil conductivity which must be >30KΩ, if the electric panel is without the relative warning light;
- check the specific warning light to see whether the thermal probes of the motor have activated.
Ask Caprari SpA for their "Periodic inspections and preventive maintenance" publication, series "K", for more detailed and scheduled maintenance
work.
22. OIL AND GREASE INSPECTION AND CHANGE
In normal conditions of work, the oil must be changed every 7500 hours and every 2500 hours in heavy duty situations. Used the oils listed below or
similar ones.
Use the relative outlets with 1/2" Gas plug for the emptying and filling operations.
The opening marked "IN/OUT" is used to empty the oil. Set the machine in a horizontal position or use an oil suction device to completely drain off
the oil.
If the old oil is like an emulsion, pour in new oil and check the seal on the pump side.
If there is water in the drained oil, change the mechanical seal on the pump side. The mechanical seal on the motor side should only be replaced if
damaged or if there is fluid in the motor compartment.
The opening with the indication "IN/OUT" is also used for filling.
With the electric pump in a horizontal position, follow the quantities shown below:
Electric pump type
K _ _ _ N3/X3
For correct filling it is very important to respect the quantity of oil indicated, the oil chamber is designed in such a way as to ensure an
adequate air cushion.
Once the emptying/filling operations have completed, check that all plugs have been well tightened and are complete with their respective new
copper seals. If the oil has been changed, do not throw the old oil away. (For Italy, use the appropriate COBAT
Compulsory Consortia).
Bearings must be lubricated with lithium grease type ESSO - UNIREX - N3 or equivalent filled at 70% only in case of bearing replacement or electric
pump repair.
In case the lower mechanical seal undergoes a failure, an oil emission in the pumping fluid may happen.The safety card concerning
It is possible to request from Caprari S.p.a.the SAFETY DATA SHEET of the oil used. Filling with oil with F.D.A. certification can be
requested from Caprari.
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Oil type Quantity in [kg]
ISO32 - SAE10W
ARNICA 32 - Agip
0,34
DTE 24 - Mobil
NUTO H32 - Esso
TELLUS S 37 - Shell
or analogous
Quantity in [l]
0,38
Caprari S.p.A.