Lao Li is a hardworking courier. Every day, he rides his electric three-wheeled vehicle and shuttles through the streets and alleys of the city, delivering parcels to thousands of households. This electric three-wheeled vehicle is like his comrade-in-arms, accompanying him through countless busy days. However, recently, Lao Li encountered a troublesome situation.

That day, Lao Li was delivering goods as usual. He needed to reverse the vehicle to adjust its position in a narrow alley. But when he toggled the forward and reverse switch, the vehicle didn’t respond at all and still moved forward. This really worried Lao Li. The alley was too narrow. If he couldn’t reverse out, it would not only delay the delivery time but also might block other vehicles. In desperation, Lao Li had to get out of the vehicle and laboriously push it out.

This experience made Lao Li realize that there was a serious problem with the forward and reverse switch. After getting home, he decided to check it by himself. First, he consulted the user manual of the electric three-wheeled vehicle and then searched for relevant information online. He learned that the failure of the forward and reverse switch could be caused by various reasons, such as poor internal contact of the switch, circuit breakage, or damage to the reversing function of the controller.

Lao Li first checked the appearance of the forward and reverse switch and found no obvious signs of damage. Then, he used a multimeter to measure the circuit of the switch and found that there was no conduction between the reversing signal wire and the negative wire, which was likely a problem inside the switch. To further confirm this, he directly short-circuited the two wires at the reversing switch plug. As a result, the vehicle reversed smoothly, which confirmed that the forward and reverse switch was broken and needed to be replaced.

Lao Li went to a nearby electric vehicle repair shop and explained the situation to the shop owner. The owner took out several forward and reverse switches for him to choose from and introduced their features and prices in detail. Considering that his electric three-wheeled vehicle was used frequently and he needed a reliable switch, Lao Li chose a brand forward and reverse switch with a moderate price and a good reputation.

When he got home, Lao Li started to replace the forward and reverse switch. First, he disconnected the power supply of the electric vehicle to ensure the safety of the operation. Then, he carefully unscrewed the screws on the old switch with a screwdriver and removed the old switch. When installing the new switch, Lao Li connected the wires of the switch one by one according to the steps in the instruction manual, ensuring that each wire was firmly connected to avoid looseness or poor contact. After connecting the wires, he checked them carefully. After confirming that there were no errors, he reconnected the power supply and toggled the forward and reverse switch. The vehicle reversed smoothly, and the big stone in Lao Li’s heart finally dropped.

The next day, Lao Li continued to deliver goods. Under various complex road conditions, the new forward and reverse switch performed excellently, being sensitive in response and smooth in operation. Whether reversing in a narrow alley or adjusting the parking space in a residential area, it became easy and effortless. Lao Li no longer had to worry about delaying the delivery time due to problems with the forward and reverse switch.

Through this experience, Lao Li not only learned how to judge and solve the failure of the forward and reverse switch of the electric three-wheeled vehicle but also deeply understood the importance of timely maintenance and replacement of vehicle parts. He also hopes that other electric three-wheeled vehicle owners can pay more attention to the condition of their vehicles, deal with problems in a timely manner, and ensure driving safety and work efficiency.