-24-
Surface Models
1. No routine maintenance is required, but provision should be made
for easy access to the pump to allow repairs due to normal wear
and tear.
2. Disconnect electrical supply before working on pump or pressure
control module.
3. Turn off liquid supplies to the pump and release pressure by opening liquid outlets
before attempting maintenance.
4. Inlet strainers and footvalve strainers when fitted may require periodical cleaning.
The frequency of this operation is dependent upon installation conditions.
5. As water is heated scale deposits are released in areas of hard water (usually south
of a line between the Wash and Bristol Channel), scale can cause the mechanical
seal to stick if left without use for long periods. We recommend the pump is run for at
least 5 minutes every four weeks to “exercise” all working parts. Run on cool water.
6. After maintenance is completed, refer to the starting and commissioning sections for
instructions on re-starting pump.
Submersible Models
Provision should be made for easy access to the pump to allow for
regular maintenance.
The integral filter and any additional pre-filters should be checked
periodically and cleaned if required. It is important the filters are clean
and free from debris which in turn ensures the pump will always run at
maximum efficiency. A blocked filter can cause damage to the pump.
The pump must be cleaned as follows:-
1. Disconnect electrical supply before working on pump or pressure control module.
2. Release system pressure from pipework and remove pump from water using lifting
eye and rope.
3. Clean inlet filter using water pressure from a hose pipe.
4. After maintenance is completed, refer to the starting and commissioning sections for
instructions on re-starting pump.
Cover
Inlet Filter
Lifting
Eye
Fig. 27
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