5.0 SAFETY INSTRUCTIONS WHILE MAINTENANCE & SERVICING
Before attempting any maintenance on a pump particularly if it has been handling any
form of hazardous liquid, it should be ensured that the unit is safe to work on. The pump
must be flushed thoroughly with suitable cleaner to purge away any of the product left in
the pump components. This should be carried out by the plant operator and a certificate
of cleanliness obtained before starting work. To avoid any risk to health it is also
advisable to wear protective clothing as recommended by the site safety officer
especially when removing old packing which may be contaminated.
Check and ensure that the pump operates at below the maximum working pressure
specified in the manual or on the pump nameplate and before maintenance, ensure that
the pump is drained down.
Wear a suitable mask or respirator when working with packing and gasket components
which contain fibrous material, as these can be hazardous when the fibrous dust is
inhaled. Be cautious, if other supplier’s components have been substituted for genuine
KBL parts, these may then contain hazardous materials.
Be aware of the hazards relating to the pumped fluid, especially the danger from
inhalation of noxious and toxic gases, skin and eye contact or penetration. Obtain and
understand the hazardous substance data sheets relating to the pumped fluid and note
the recommended emergency and first aid procedures.
Isolate the equipment before any maintenance work is done. Switch off the mains
supply, remove fuses, apply lock-outs where applicable and affix suitable isolation
warning signs to prevent inadvertent reconnection. In order to avoid the possibility of
maintenance personnel inhaling dangerous fumes or vapours, it is recommended that the
maintenance work be carried out away from the pump locations by removal of bearing
housing and shaft assembly to a suitable to a suitable maintenance area.
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Ref: Proposed draft standard prEN 800:
Pumps and pump units for liquids;
General safety requirements
-iii-
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