| 摘要 |
PROBLEM TO BE SOLVED: To improve the workability of repairs and maintenance of a prime moving part 3 by removing a barrier against work in a prime moving part structure of a work machine provided with a cab B on an upper face of a box-shaped bonnet 6 covering an engine 4 and constituting the bonnet 6 so as to oscillate and open it sideway and outward around a support S in a lower part on an outer side of the bonnet 6. SOLUTION: The support S is provided in a movable member 8, which is constituted so as to protrude and move sideway and outward of a machine body 1. As one example, the movable member 8 is constituted by a movable frame 8A having a one-end opened square plane shape, and both leg parts 8a, 8a forming a one-end opened square shape are supported so as to slide and come in and out in inward and outward directions of the machine body 1 for a guide part 9 provided in a machine body frame 2.
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