| 摘要 |
An slider for adjusting the weight distribution of a semi-trailer. The slider comprises an apertured track which extends longitudinally along the bottom of a trailer and a dual axle carriage slidably coupled to the track. A pneumatically operated pin is attached to the carriage for selectively extending and retracting a pin into the aperture. The slider further includes a hydraulic cylinder for sliding the carriage along the track while the pin is retracted whereby the position of the carriage and the dual axles can be slidably adjusted.
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