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OPERATING AND MAINTENANCE MANUAL
SERIE V
1. INSTRUCTIONS
- Before installation you should carefully check whether any of the parts have been damaged during
transport or storage, such as that the cable and plug are in good condition, and that the insulation
resistance is above 0.5 M Ω. If this is not the case, look for the fault.
- Check that the voltage and frequency of the mains supply matches the voltage and frequency speci-
fied on the pump nameplate before installation. The pump must be earthed for safety.
- Before installation, check that the cable and plug are in perfect condition. If not, contact your supplier
or service centre for replacement.
- Use a metal thread or flange to tighten the outlet and discharge pipe, and tie a rope to the handle so
that the pump can be lowered and raised.
- The cable should be avoided by all means to avoid hitting or crushing the cable. The cable should not
be used to unhook the pump.
- The power supply to the pump must have a differential and the voltage must be kept within ±15% of
the pump rating to avoid damage to the motor.
- Do not touch or move the pump without first disconnecting it from the power supply.
- Make sure that the cable splice is insulated from water, heat, oil or any sharp objects.
2. MAINTENANCE
1. Check the cable regularly and replace it in case of breaks, kinks, etc.
2. After 2000 hours of operation, service the pump by following these steps:
•
Dismantle the pump: carefully check the wearing parts, such as bearings, mechanical
seal, impeller, seals, etc. Replace damaged parts.
•
Change oil: remove the oil chamber plug and inject oil at 70-80% of the chamber
capacity.
•
Tightness: after maintenance test the pump by injecting pressurized air into the pump
and holding the pressure at 0.2Mpa for 5 minutes to check for leakage.
3. Do not immerse the pump in water after a period of non-operation. It should be removed from the
water, cleaned and an anti-rust process applied.
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