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The workgroup of a compact hydraulic excavator consists of the boom, dipper or arm, and attachment (e.g. auger, bucket or breaker). It is connected to the front of the excavator's house structure via a swing frame that allows the workgroup to be hydraulically pivoted left or right to achieve offset digging for trenching parallel with the tracks.
Pantograph wipers feature two arms for each blade, with the blade assembly itself supported on a horizontal bar connecting the two arms. One of the arms is attached to the motor, while the other is on an idle pivot. [citation needed] The pantograph mechanism, while being more complex, allows the blade to cover more of the windscreen on each ...
A lawn sweeper, also known as a leaf sweeper or lawn brush, is a garden tool for the mechanical removal of debris, such as fallen leaves, pine needles, twigs, grass clippings or litter, from a lawn or paved area. Lawn sweepers operate via a rotating brush mechanism that sweeps up the debris and deposits it in a collection hopper for disposal.