DAB GRINDER GL, Instruction For Installation And Maintenance

Page: 32 / 292

GB
32
English
Use and maintenance instructions
Electric submersible pumps for sewage
Before any checking or maintenance proceed as follows:
- Disconnect the electric power supply being sure that same cannot be reconnected inadvertently.
- Check that implements and equipment used for handling, lifting and positioning are well dimensiones and
comply with local safety regulations.
- Proceed on safety conditions when there is the risk of toxic gas in the accumulation tank. Make sure of an
efficient ventilation and to be assisted by a second worker outside able to act promptly and in safety, when
necessary.
Regular checks on all hydraulic and mechanic components are necessary and for electric pumps equipped
with oil chamber for the mechanical seals it is necessary to check conditions and level of oil.
The frequency of controls depends on conditions of use of the electric pump.
Inspection frequency is necessary for a minimum of 4000 to a maximum of 8000 service hours and at least
every year.
Check that insulation resistance of electric pump is less than 5MW in air and less than 2MW in water with testing
current of 500V. in C.C.
7.2 EXTRA MAINTENANCE
Extra maintenance and repairs must be carried out only by authorized specialized workshops.
Use genuine spare parts only for repairs.
Order necessary spare parts following drawings.
The manufacturer declines any responsibility for eventual damages to persons, animals or things for
maintenance and repair interventions carried out by non authorized personnel or with no genuine spare parts.
Specify the following information when ordering spare parts:
1. The type of electric pump
2. Serial number and manufacturing year
3. Denomination and reference number of the spare parts
4. Required number of parts.
8. WARRANTY
Warranty of the product is subject to general sale conditions.
Warranty is recognized when all mechanical, hydraulic, electric norms and correct use indicated on the present
manual are respected.