caprari HV Serie Instrucciones De Servicio página 15

6 USE AND MANAGEMENT
Before starting, it is always necessary to prime the pump by venting off the air in the ducts and pump itself.
ATTENTION
The following operations are required if the pump is not installed below head:
1) remove the plugs from the delivery and suction mouth (when installed) and pour in water;
2) close the suction plug when water begins to ow out;
3) close the delivery plug when the pump has completely lled.
Consult paragraph 6.2 "Conduction and inspections" before starting for the rst time.
ATTENTION
If the electric pump fails to start (no "run-up"), do not repeatedly attempt to start as this could damage the unit. Identify the malfunction and repair.
If an indirect starting system is used, the starting transient must be brief and must never exceed a few seconds.
General prescriptions for employ of INVERTER
When starting and/or during use, the minimum frequency must not be less than 70% of the rated value.
The motor must be ordered with the type of electric winding that suits the use required.
Voltage gradient
Harmonic content of the voltage ≤ 1.5 %.
Harmonic content of the current ≤ 4 %.
6.2 Conduction and inspections
Once installed, the pump will require no particular maintenance. To ensure continuously regular operation it is, however, necessary
ATTENTION
to conduct regular preventive inspections on rst start-up and at least every 1500÷2000 hours service. Check the following items at
this time:
- check the dimensions as indicated in the "Operating Brief" (consult the "Summary of operating data" chapter);
- check that the power draw never exceeds the data plate values, particularly during the initial operating phases. If this occurs,
throttle the ow by means of the sluice valve on the delivery pipe;
- check that the motor cooling system is clean;
- grease the bearings of the electric motor on the coupling side using grease for high temperatures (eg. lithium based 130 °C
- 266 °F). Check that the operating temperature never exceeds the limits of the utilized grease itself;
- adjust the stuf ng box of the packing gland when installed. Position each nut evenly in order to ensure light dripping during
operation.
Proceed according to the instructions in this manual if operation is faulty.
Ordinary maintenance and repair of the electric pump must only be carried out by specialized personnel.
Extraordinary maintenance must be carried out by an authorized specialized workshop.
Removal
If the electric pump must be disassembled from the system, check the weight and stability of the various components as they are
demounted (consult chapter 4 "Storage and handling").
Replacing the packing gland:
1) remove the adjuster nuts of the stuf ng box together with the protective moulding (series HF(U) and allow the stuf ng box to slide towards the
coupling;
2) replace the seal.
3) ATTENTION adjust the stuf ng box of the packing gland by working evenly on both sides in order to achieve slight dripping during operation;
4) restore the initial conditions.
Contact an authorized after-sales service center.
Only ever use genuine Caprari spare parts. Failure to do this could void the guarantee and would relieve the manufacturer of all responsibility in merit.
Specify the following information when ordering spare parts from Caprari S.p.A. or from one of their Authorized After-Sales Centers:
1 - the complete code of the product;
2 - the date code and/or serial number and/or job number when pertinent;
3 - the denomination and reference number of the part as indicated in the spares catalogue (available from Authorized After-Sales Centers) or in the
typical sections illustrated in this manual;
4 - the required number of parts.
If pump remains inactive for 20÷30 days, always check that the rotor is free to turn and that the hydraulic part is primed before starting.
Consult chapter 4 "Handling and storage" chapter for further information.
When dismantling the product, the technician must proceed with the relative phases and dismantle the unit in strict compliance with the local safety
rules and regulations governing such activities.
The general conditions of sale governing all products manufactured by Caprari S.p.A. are also valid for the equipment in question.
In particular, remember that one of the essential conditions for recognition of the warranty is compliance with all the individual instructions given in
the enclosed documentation and the best hydraulic and electrotechnical provisions, fundamental condition to ensure regular operation of the electric
pump unit. Malfunction caused by wear and/or corrosion is not covered by the warranty.
To prevent the warranty from becoming void, the electric pump unit must rst be examined by our technicians or by technicians from our Authorized
After-Sales centers.
Failure to comply with the instructions in the documentation supplied with the electric pump unit shall void all form of guarantee and relieve the
manufacturer from all responsibility in merit.
Caprari S.p.A.
HV - HVS / HVU - HVUS / HF - HFU
GB