| 摘要 |
PROBLEM TO BE SOLVED: To improve the simplification and operability of driving change gear operation. SOLUTION: In the maintenance car, mounting a change gear mechanism 14 equipped with a hydraulic pump 7 and a hydraulic motor 8, both hydraulic pump 7 and hydraulic motor 8 are formed to enable varying an output, and the output control of the hydraulic pump 7 and the output control of the hydraulic motor 8 are performed by a change gear lever 22.
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