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Knots, Twist & Kinks

After you have read the sling tag, and
have determined it has a rating equal 
to or greater than the weight of the  
lift, check each branch of the sling to
make sure the chain assembly has no  
twists, knots or kinks. If you do not    
remove the twists, knots or kinks before
lifting, the stress caused may cause failure
to the chain now or at a later use. Remember, 
the definition of Working Load Limit? It’s “the maximum 
load that shall be applied in direct tension to a new and undam
aged length of chain.” That means straight line pull. No Twists,
Knots or Kinks! Also the chain may have been abused by a         
previous user so always check it for nicks or damage before       
lifting. Safety only takes minutes, an injury can last a lifetime.  

Abrupt Movement

Added stress will be put on the
sling chain if sudden jerking
occurs while raising or
lowering the load. Raising
or lowering a load with a
jerk can exceed the
Working Load Limit of the
sling. Take it slow and easy.


Unbalanced loads should         
always be avoided. Also       
make sure you center
the master link on
the lifting hook.    
Do not force sling
hooks into the        
lifting points on the
load. Tip loading of    
hooks will reduce the capacity of the
sling and can damage the hook.        

Do not shorten a sling leg with a knot, bolt
or other makeshift device in order to get    
the load in balance. Balance is particularly important.      

Sharp Edges

If the chain must be wrapped        
around the load, pad the chain to
prevent damage to the links,
especially around sharp  
corners. When lowering  
loads, set them down       
gently to avoid crushing
the chain.                              

High Temperatures

Alloy chain is heat-treated in
order to obtain the high
strength and wear factors
needed for slings. Overheating
a chain sling destroys the
integrity of the heat treatment.
If chain slings are
exposed to extreme tempera-
tures, the Working Load
Limit is reduced.


Regular sling in-
spections and
good       record
keeping are keys
to making a pro-
fessional   lift.
All slings
should be
shipped with a
test certificate indicating that the sling has been proof tested at twice the Working Load Limit of the chain. Slings that have been in service for more than three years, and that have been used on a regular basis, should be sent in for recertification. Records for each individual sling should identify the individual serial number prior to being put in service.