Service and Maintenance of Fire Extinguishers

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Maintenance Procedures

All fire fighting appliances will be inspected twice yearly and carried out in accordance with BS 5306:PT3.  All works shall be carried out by a competent person as defined in the Management of Health and Safety at Work and approved Code of Practice.

All extinguishers shall be kite marked as BS EN3 1996 and be colour coded as to the requirements of BS7863.

  1. Visual inspection of all appliances shall include: the extinguisher is in the correct location, unobstructed and visible, instructions are legible with the correct information, damage seal and tamper indicators are not broken or missing. The engineer shall inform the user of any outstanding issues and action to be taken.
  2. Examine all extinguishers for corrosion and damage. Extinguisher to be removed from service where there are signs of corrosion.
  3. A discharge test shall be carried out to all extinguishers.
  4. Check the functioning of the pressure indicators devices according to the manufacturers’ instructions. Where pressure indicators are not fitted extinguisher is to be tested by means of a purposely designed tool to verify internal pressure is correct.
  5. All appropriate safety precautions shall be taken to release pressure from the extinguisher.
  6. Weight the extinguisher in accordance with the manufacturer’s recommendations and compare against previous records.

Where an extinguisher has been discharged or loss of 10% of contents, the extinguisher shall be refilled in accordance with the manufacturer’s recommendations including any additives required.

  1. Gas cartridge – Head cap to be unscrewed and gas cartridge removed. Examine extinguisher for signs of corrosion or damage and replace as necessary. Weigh the cartridge in accordance with the manufacturer’s recommendations and compare against previous records.  Where an extinguisher has lost more than 10% of the contents, the extinguisher shall be withdrawn from service and replaced by suitable type extinguisher.
  2. Powder extinguisher – examine the powder by agitating the powder by inverting and shaking extinguisher, avoiding any spillages. Where powder is not free flowing or there are signs of caking, foreign bodies or lumps the powder shall be discarded and the extinguisher recharged as per manufacturers instructions.  The powder shall be examined as far as possible and inspected internally with the aid of a purpose made tool.

All powder extinguishers shall discharge every 5 years, where there are no maintenance labels to indicate last recharge, this will be carried and inclusive within the first service.

  1. Examine discharge hose and nozzle for condition and suitability for use. Check nozzle and hose for cracks, splits, worn or damage and replace as necessary.
  2. Clean and pass air through air passages including all venting devices. Check hose nozzle strainer (where applicable), discharge tube and breather valve are unobstructed and replace where necessary.  Check the operating mechanism and discharge control (where applicable) for free movement, clean and rectify or replace as necessary.  Lubricate moving parts and threads as per manufacturers recommendations and replace safety pins as necessary.

CO2 extinguisher check the safety pin is removable and the operating level is undamaged and renew as necessary.

‘O’ rings and washers shall be renewed as necessary.  Hose reel diaphragm shall be renewed.

  1. Return the original or new charge into the water, water based and foam filled extinguishers body as specified by manufacturers.
  2. Reassemble the extinguisher as manufacturers instructions and refit safety clip to prevent operation and fit new wire seals.
  3. Check mounting brackets or stands and refit as necessary.
  4. Complete maintenance label details and write report advising the user of the state of maintenance.
  5. Identification reference numbers shall be replaced where missing (all costs for label replacement shall be included within the service costs).

 

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