The coil assembly is usually not broken, so leave it alone and just use an Allen wrench to disassemble the bottom of the switch. The spring is very important. Clean the rubber seal and the inside of the valve body. OK, it's ready to install.
The sprinkler solenoid valve has a fatal weakness: it is afraid of getting dirty. The so-called dirty does not refer to dust and dirt on the outside, but to rust residue. in the water tank, which will block the solenoid valve and clog the solenoid valve. It does not close properly. The switch is obviously off, but why is the water still coming out? This means that the solenoid valve is stuck inside.
It should spray water. The purpose is to cool the tires and brake basins to prevent tire blowouts and damage to braking performance caused by temperatureshigh air. brake padsfail or malfunction.
The truck's sprinkler, also known as the water tank, will water the brake pot to cool it. Some overloaded vehicles spray the tires and brakes at the same time to cool down. Prolonged use of the brakes when a large truck is going down a slope will cause the brakes to become too hot. cause brake failure and easily cause an accident. The purpose of installing a water sprayer is to cool the brakes when descending and thus ensure good braking.
The reason heavy trucks spray water on their tires when fully loaded is because heavy trucks brake through their wheel hubs. Frequent braking will cause the wheel hubs and hub to heat up. heating will cause brake failure. Spraying water on wheel hubs reduces wearwheel hub temperature. Especially when the car is fully loaded, the wheel hub temperature will be higher than usual, so it is more important to spray water to cool.
How to drive a truck downhill? Check the vehicle in advance and adjust the brakes. Typically, experienced drivers perform a simple inspection of the car before going down a hill, focusing on checking if there are any problems with the braking system. Compared to ordinary cars, trucks carrying large quantities of materials need to be inspected downhill. Be prepared to adjust the brake play in advance and adjust the brake play to the appropriate position. Then there is the issue of air leaking from the gas meter to ensure the dryer can be evacuated smoothly.
When driving at low speed, please do not brake. Continue driving at low speed in ddescent for a long period of time. The inertia of the car going downhill is large, and the faster the speed, the greater the inertia generated. Trucks must remember to drive at low speed downhill. Excessive speed can easily cause safety accidents. When driving at low speed, do not press the brake frequently, but press it once to stop the vehicle. Spot braking can easily cause the brake pads to overheat and the air pressure to be too low, causing the brakes to fail.