Hook Types
Compare when a hook releases and how it is actuated. These are two different parts of the specification.
On-loadRelease while force is applied, within the documented operating limits.Off-loadRelease after the required unloading condition is satisfied.CombinedLoaded and unloaded release modes in one specified system.ManualActuation by an operator through a manual control.AutomaticActuation associated with a remote or automated process.
Load condition and actuation are separate choices
On-load, off-load and combined describe release behaviour in relation to the load. Manual and automatic describe actuation. A manually actuated hook may also be an on-load hook; the labels are not mutually exclusive.
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After comparing release types, check the operating environment, installation and documentation relevant to the intended job.
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