The trolley pole hook is similar to the hooks equipped on ZK5105Cs in Wuhan? (However, Yangtse trolleybuses in Wuhan are not equipped with automatic hooks…)
引用 (BJD-WG120N2, 12.12.2023): > The trolley pole hook is similar to the hooks equipped on ZK5105Cs in Wuhan? > (However, Yangtse trolleybuses in Wuhan are not equipped with automatic hooks…)
This is the final order that Wuhan didn't ask for. Wuhan can also achieve automatic lifting rods
But for the Yangtse WG6124BEVHs in Wuhan, when the poles are lowered, there are no hooks to lock the trolley poles in place. So the poles are shaking while the bus is running… Dual-source/IMC buses have retractable trolley poles, but many of them are not equipped with pole hooks. When the air pressure in the cylinder is gone (e.g. the bus is turned off), the poles can't be lowered because of the springs are pushing them up. But for the buses with pole hooks, the hooks can keep the poles lowered even when the air pressure is gone. (Trolley poles are raised by the springs, and the air cylinders are used to push them down)
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