Care and
Maintenance of your Fire Extinguisher:
Inspect fire extinguishers at least once a month (more often
in severe environments). Fire extinguisher maintenance is
important for everyone’s safety. You must ensure that:
- The extinguisher is not blocked by equipment or other
objects that could interfere with access in an emergency.
- The pressure is at the recommended level - not too high
and not too low.
- The nozzle or other parts are not hindered in any way.
- The pin and tamper seal (if it has one) are intact.
- There are no dents, leaks, rust, chemical deposits and/or
other signs of abuse/wear. Wipe off any corrosive chemicals,
oil, gunk etc. that may have deposited on the extinguisher.
- Some manufacturers recommend shaking your dry chemical
extinguishers once a month to prevent the powder from settling/packing.
- If the extinguisher is damaged or needs recharging, replace
it immediately!
Fire extinguishers should be pressure tested (a process called
hydrostatic testing) after a number of years to ensure that
the cylinder is safe to use. Consult your owner's manual,
extinguisher label or the manufacturer to see when yours may
need such testing.
IMPORTANT: Recharge all extinguishers immediately after use
regardless of how much they were used.
What is the difference between a fire extinguisher inspection
and fire extinguisher maintenance?
INSPECTION: An inspection is a “quick check” to
give reasonable assurance that a fire extinguisher is available,
fully charged and operable. The value of an inspection lies
in the frequency, regularity, and thoroughness with which
it is conducted. The frequency will vary from hourly to monthly,
based on the needs of the situation. Inspections should always
be conducted when extinguishers are initially placed in service
and thereafter at approximately 30-day intervals.
MAINTENANCE: Fire extinguishers should be maintained at regular
intervals (at least once a year), or when specifically indicated
by an inspection. Maintenance is a “thorough check”
of the extinguisher. It is intended to give maximum assurance
that an extinguisher will operate effectively and safely.
It includes a thorough examination and any necessary repair,
recharging or replacement. It will normally reveal the need
for hydrostatic testing of an extinguisher.
HOW FIRE EXTINGUISHERS WORK? At
the top of the cylinder, there is a smaller cylinder filled
with compressed gas. A release valve acts as a locking mechanism
and prevents this gas from escaping. When you pull the safety
pin and squeeze the lever, the lever pushes on an actuating
rod which presses the valve down to open a passage to the
nozzle. The compressed gas is released, applying a downward
pressure on the fire-extinguishing material. This pushes the
material out the nozzle with high amounts of pressure.
Although the temptation is to aim the extinguisher at the
flames, the proper way to use the extinguisher is to aim it
directly at the fuel.
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