| 摘要 |
A portable crane for lifting and positioning modular house sections from a trailer truck onto a foundation is provided with a pivotal post member which folds down onto a base and wherein the crane jib pivots and folds against the post member so that the crane is reduced in size for transport. The lower end of the post member, when in a vertical position for lifting, includes side support pads with elongated slots to allow transverse adjustment of the house section during positioning thereof onto a foundation.
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