Pipelayer (vehicle)

A pipelayer or sideboom is a type of a construction vehicle used to lay pipes. It is used in the construction of oil, gas and water pipelines.

Description
The lifting equipment of pipelayers includes:
 * boom, mounted on the left side of the machine
 * counterweights
 * hydraulic hook and boom winches.

A pipelayer can also be equipped with accessories:
 * crane (used to lift and place pipeline elements in a trench)
 * dragline (used to backfill a trench)
 * rammer (used to compact the soil in an excavation).

Standards
Construction, installation, operation, inspection, testing, and maintenance of sidebooms are covered by OSHA standard 1926.1440 - Sideboom cranes and ASME B30.14 - Side Boom Tractors.