| 摘要 |
PROBLEM TO BE SOLVED: To prevent the blowing-in of hot air into a driver's cab by penetrating a piping from a selector valve into a through-hole having a diameter smaller than the selector valve installed to a fire wall while closing the through-hole by the selector valve. SOLUTION: A through-hole communicated with a driver s control room 6 from an engine room 7 is bored to a frame-side wall 5a, and a pipe 9c group extended from a selector valve 9 is penetrated. The through-hole is formed in a diameter smaller than the pipe drawing-out surface section of the valve 9 while the valve 9 applies the pipe drawing-out surface section to the through- hole from the engine room 7 side and installs the pipe drawing-out surface section to the wall 5a. Accordingly, the mounting structure can be simplified because the through-hole need not be closed by using an exclusive closing member, and blowing into the driver's cab 6 of hot air from the engine room 7, the elevation of room temperature and the deterioration of work environment can be prevented, and the length of an oil hose 9d can be shortened, and the heating of the pipe 9c group, the oil hose 9d, etc., in the engine room 7 can be obviated. |
