| 摘要 |
PROBLEM TO BE SOLVED: To prevent damage to piping caused by contact with an outer cover and to facilitate inspection work and maintenance work of a control valve group. SOLUTION: A control valve group 27 is constituted to connect hydraulic hoses 42A-42H, a supply hose 43 and return hoses 44, 45, 46 to an inner side face 27B and to connect pilot hoses 47A-47H to a front side face 27C and a rear side face 27D but not to connect even one hose to a cover facing face 27A forming an outer side face, and disposed to allow the cover facing face 27A to face an outer cover 24. The hydraulic hoses 42A-42H, supply hose 43 and pilot hoses 47A-47H can thereby be prevented from coming in contact with the outer cover 24. Furthermore, since no hose exists between the control valve group 27 and the outer cover 27, inspection work and maintenance work can be performed easily. COPYRIGHT: (C)2003,JPO
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