When the brake pedal is pressed strongly, it feels that the top force of the pedal is great, but the brake effect is poor or there is no brake effect at all, and when the pedal is released, the return distance of the pedal is also small. This situation is especially common in summer or winter. This is because there is more snow and rain in winter and summer. During the driving of a locomotive, the muddy water on the road can easily enter the brake pot, causing corrosion between the brake shoes and the support shaft and between the brake shaft and the brake disc hole, which makes brake shoes and brakes. The shaft is fixed in a position where it cannot move, causing the brake to fail.
Solution: Remove the brake system of the rear wheels, clean up the rust on the brake shoes and the brake shaft, and polish so that they can move freely. Note that after the locomotive is on the road where there is more muddy water, do not rush to take it in and store it in the warehouse. If you want to find ways to do more distances and repeatedly step on the brakes during the journey, make the mud entering the brake pots produce on the brakes. Evaporation disappears in the heat, which can prevent this kind of failure.
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