自動注油器

部分車輛 配有自動注油器，為部分必須潤滑 的機構進行潤滑。其上有兩個視窗，左側顯示車輛儲有的滑油存量，右側顯示透過此設備潤滑的傳動系統 軸承油位。

當車輛移動時，軸承當中的滑油將被消耗。但自動注油器能取用儲有滑油為軸承進行潤滑。

If the vehicle has been parked and the bearings have run dry, however, the lubricator must be manually primed by turning a crank on it, until the bearings are full, before the vehicle can be set in motion again.