| 摘要 |
PURPOSE:To reduce any possible soil due to muddy water or the like during traveling so effectively as well as to simplify a compressed air pipeline by installing a leveling valve in a sufficiently higher position as compared with the conventional make-up fixed to the side of an undercarriage frame by way of clamping this leveling valve to the side of a cab. CONSTITUTION:In and around the front end of a cab 1 6, it is installed in an undercarriage frame 10 by an air spring device 30. In addition, a leveling valve 52 supplying or discharging compressed air is installed in a compressed air pipeline connecting this air spring device 30 and a compressed air source. In this case, this leveling valve 52 is clamped to the side of the cab 16. In succession, an operating lever 54 of the leveling valve 52 is connected to the undercarriage frame 10 via a connecting rod 58. In brief, this leveling valve 52 should be installed higher enough than conventional With this constitution, any damage and malfunction due to sludge or the like are prevented from occurring and durability is improved so high, while the compressed air pipeline is simplified in terms of structure and a manufacturing cost is reduced to some extent in this way. |
