Hot hot hot hot!
Shencheng also issued a red warning of high temperature
People will suffer from heat stroke,
New energy buses will also "heat stroke".
Repair workshop in the parking lot of Shenkun Road on Zhongyun 71 Road
A group of post-90s auto mechanics are sweating and treating
A new energy trolleybus with "heat stroke"
The roof temperature reaches 45°C
Under the scorching sun, the sun is scorching the rows of medium-capacity 71 new energy buses to be operated. Although it is a new energy vehicle, it is still a trolleybus with "braids". Its battery is installed on the roof of the car, although it is more safe, but it brings another problem: fear of heat.
"Because at high temperatures, the battery will start the self-protection program, will not be charged, at most can only charge 50-60% of the electricity, so we must strengthen remote monitoring and daily inspection." Gu Haidong, 31, has been engaged in bus repair for 10 years, and when he entered the line work in 2016, although he was a young "teacher", he was also slowly groping from mechanical repair to mechatronics.
No. 71 medium-volume bus line, a total of 68 new energy buses, by the repair workshop of 14 people to maintain and operate, this team, there are 4 post-90s. Gu Haidong's partner, Liu Mingyong, is also a post-90s man who was transferred from another repair workshop more than a year ago.
At this time, a 71-route inspector who had applied for repair drove into the repair workshop. First stopped at the edge of the small building - the inspection began at the top. Gu Haidong and Liu Mingyong ran up to the second floor and went down to the roof of the car. Since according to the regulations, disinfection is required before maintenance, and it can be left for half an hour before entering the repair workshop, the temperature of the whole vehicle is very high. The thermometer showed that the roof temperature at this time even reached 45 degrees.
"The highest repair rate is the collector pole, that is, the 'small braid' on the roof, sometimes it is knocked off, sometimes it is broken, and sometimes the air pressure is insufficient." Gu Haidong put on insulating gloves, first check whether the long rope of the collector pole is aging and damaged, and then see whether the sub-pump is damaged and leaky, and whether the lock rod is locked.
The roof temperature is close to 45°C↑
Check the roof of the car, then go downstairs to check the bodywork. By this time, the inspector had parked the car above the gutter. Gu Haidong opened the rear cabin of the vehicle and carefully checked the fixation of the wiring harness, whether there was any damage and loosening. "These harnesses are all bandaged, and at high temperatures, the electrical appliances use too much electricity, and the harnesses will burn paste, forming burn marks."
Taking wrenches and other repair tools, and hanging up the sign of "Vehicle Repair", two young people plunged into the carriage. The vehicle was serviced without electricity, there was no air conditioning in the cabin, and it was as hot as an oven.
Afraid that the gloves would stain the facilities, Gu Haidong and Liu Mingyong took off their gloves and checked whether the armrests, handles and seats were loose to see if the safety hammer and fire extinguisher were "on duty". Every inspection is reflected in the subtleties.
From "Little White" to "Teacher"
It is understood that the 71 road is a long model, and there is a stirring plate in the middle of the carriage. Gu Haidong and Liu Mingyong opened the churning plate inspection port to check whether the tubing inside was damaged, and whether the churning positioning sensor and wiring harness were damaged. Before long, their overalls were soaked with sweat.
The last step is to check the bottom of the car. Gu Haidong went down to the ditch to check whether the straight-pull club ball head and the horizontal pull rod ball head of the chassis were loose, and whether the air bag was leaking, these are all mandatory items, if it is broken, the car will be "directionless".
The back of Master Gu's clothes was already soaking wet↑
Drilling trench maintenance vehicle, is the daily life of the repairman, standing in more than 1 meter deep, narrow ditch, need to lean on the back, bend the knee forward, the top of the head is the bus chassis, next to the ditch wall protection, after the heat wave rolling gutter "baptism", when coming out, Gu Haidong, hun body and body are already soaked.
"When the new energy vehicle started in the first year, everyone had no experience, using water spray and other physical cooling methods to ensure the amount of charging, 5 years, now this method has been basically used, but to strengthen the background monitoring, once found which car has low electricity, less charging, come back immediately into the workshop to check, timely elimination of problems." Under the guidance of Gu Haidong, the reporter saw the background on the computer, that is, the "new energy vehicle monitoring system".
You can see all the operating vehicles of The 71 Road on the computer screen, and after clicking on it, you can also see how much electricity is left in each vehicle, the temperature of the five-in-one, and so on.
Gu Haidong said frankly that 5 years ago, when facing new energy vehicles, he was also a "little white". Now, in addition to the 71-way, this 14-person maintenance team is also responsible for the maintenance of the 748 and 71-way T2 lines. Because of the high temperature, the amount of maintenance is twice as much as usual, and more than 10 vehicles will be repaired every day, and the vehicles will be maintained according to the number of kilometers.
However, these young repairmen are not afraid of tiredness or heat, for them, they must fight for speed and quality to ensure the safe and orderly operation of urban public transportation.