Complex sentence: Some loaders are equipped with a quick coupler, otherwise known as a Quick Attach "(QA)" system, the "QA" system allows the bucket to be removed easily and other tools to be added in its place.
Split into simpler sentences: Some loaders are equipped with a quick coupler, otherwise known as a "quick attach" "(QA)" system. The "QA" system allows the bucket to be removed easily and other tools to be added in its place.