FRAM 2016 - page 7

7
Temperatur °C
Reduksjonsfaktor
Temperature in °C
Reductionfactor
÷40 < t ≤200
1
200 < t ≤300
0,90
300 < t ≤400
0,75
over
/
ikke tillatt
excess
400
Not permissible
SAFE USE
Never load in excess of the rated capacity for the application.
Keep a records of all slings in use.
User should remove all twists from a chain leg before lifting and, should never knot a chain.
Always use Shortening Hook or Clutch when chain slings should be shortened.
Always inspect to insure that chain is free from damage or wear before use.
Always inspect all sling components prior to each use.
Ensure that chain is protected from any sharp corners on the load.
Ensure that the master link articulates freely on the hook of the crane or other lifting appliance.
Never tip load hooks. The load should always be supported correctly in the bowl of the hook.
Always use the correct size sling for the load, allowing for the included angle and the possibility
of unequal loading. (Se page 34-36)
Personnel must keep all body parts from between the sling and the load, and from between the
sling and the crane/hoist hook. Persons shall never ride the chain sling/rope sling or web sling
or the load during lifting or while suspended. Persons must stand clear of all loads while lifting
or while suspended.
MAINTENANCE
A thorough examination should be carried out by a competent person at intervals at least every
six months or more frequently according to statutory regulations, type of use and past records.
Chains with bent links or with cracks or gouges in the link should be replaced, as should defor-
med components such as bent master links, deformed hooks and any fitting showing signs of
damage.
Chain and components wear should never exceed 10% of the original dimensions.
Once a chain sling has been overloaded it must be taken out of service.
Store chain slings on a properly designed rack. They should not be left lying on the floor where
they may suffer mechanical or corrosion damage or may be lost.
LIMITATION ON USE
FRAM alloy chain or chain slings should not be used in acid or caustic solutions nor in heavily
acidic or caustic laden atmospheres. The high tensile strength of the heat treated alloy material
in alloy steel chains and components is susceptible to hydrogen embrittlement when exposed to
acids.
FRAM slings must not be heat-treated, galvanized, plated, coated or subject to any process invol-
ving heating or picking. Each of these processes can have dangerous effects and will invalidate
the manufacturers certificate.
FRAM slings may be used at temperatures between-40°C to 200°C with no reduction in the
working load limit. The use of FRAM chain sling within the permissible temperature range in the
table below does not require any permanent reduction in working load limit when the chain sling
is returned to normal temperatures. A sling accidentally exposed to temperatures in excess of
the maximum permissible should be withdrawn from service immediately and returned to the
distributor for thorough examination.
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