The rigger is responsible for ensuring that chains are checked before use. All chains must also undergo an annual inspection. After inspection, a new date marking must be stated on that marking plate, or this must be marked with the year color and the result must be recorded.
- Create a directory of all the chains in use.
- Never lift with a twisted chain.
- Chain sling must be shortened with a shortening hook – never tie knots on the chain.
- Protect the chain from sharp edges by placing an intermediate layer in between.
- Never load a hook in the tip – the load must always be correctly placed at the bottom of the hook.
- Always use the correct size chain for the load, taking into account the angle and the possibility of uneven loading.
- The top eye must always be able to hang freely in the crane hook.
- Always avoid jerking.
- Be aware of limiting workload for angles at extremes.
- For uneven loads, WLL/SWL must be reduced by 50%
- At least every 12 months or more often according to legal regulations, type of use and previous experience, a careful check must be performed.
- Chains with bent, cracked or hollowed out joints need to be replaced, as well as deformed components such as bent oval rings, open hooks and any component showing signs of wear.
- The wear on the chain and the components must never exceed 10% of the original dimensions. Wear on chain link – max. 10% – is defined as the average diameter of the material measured in 2 directions. AGON has prepared a special, user manual for scrapping criteria for chains that can be ordered here .
- Overloaded chain loop must be taken out of use.
- In addition, refer to the AGON Chain Control Guide
- Extension of joint joints is not permitted.
- Chain sets must be provided with a load sign with information on max. Load
(WLL/SWL), identification of manufacturer, CE mark and year of manufacture.
All lifting gear must be checked at least once every 12 months.
Chain and chain components must not be used in connection with acid or other aggressive chemicals. In very corrosion-aggressive environments, the utmost care must be exercised, and in case of doubt, contact Agon on +45 7028 7050
NOTE! Hot dip galvanizing is not allowed.
-20 degrees to 200 °C in this temperature range there is no reduction in WLL.