Check and maintain the main items after the 1. is collected.

Check and replenish fuel oil and lubricating oil. Clean the inside and outside of the vehicle and the engine and chassis. In the severe winter season, if antifreeze is not added to the cooling system, the radiator cover, the water drain switch, and the water drain switch of the engine should be turned on, the cooling water should be exhausted, and the cooling water should be started for a short time to drain the water to avoid residual freezing. Vehicles with cracked cylinders, radiators, and air brakes should drain the sewage in the air cylinder. After flameout, close the switch and tighten the hand brake, and check the ammeter for leakage (the pointer points to the "-" side). Check the horn, lights, wipers. Check whether the leaf spring is broken, and whether the spring lifting lug and riding bolt are loose. Check the axle shaft and tire nut to see if the steel ring is damaged. Check the tires for cracks and gas loss.

2. Vehicle Level I Maintenance Items

After the completion of the first-level maintenance work, the car should be clean and tidy, the connection should be firm, the three filters should be unobstructed, and there should be no oil leakage, water leakage, air leakage and electricity leakage. The cleaning operation items of the first-level maintenance of the vehicle include: cleaning the body and wiping the engine and chassis. Clean and maintain the air filter. Clean the gasoline filter. Release the sediment in the oil filter, turn the filter handle 3-4 times, clean the oil filter, and replace the filter element according to the degree of pollution. Bleed out the oil and water deposits from the gas reservoir.

3. Vehicle Level I Maintenance and Lubrication Operation Items

Check the oil level of engine, transmission, rear axle and steering gear, and add lubricating oil according to regulations. Each part of the vehicle is equipped with complete and effective oil nozzles, and grease (water pump, rotating shaft, universal joint, steering knuckle, steering rod, etc.) is added as required.

4. Vehicle Level I Maintenance Inspection Tightening Operation Items

Check the steering gear, tie rod, straight tie rod, and the connection and fastening of each steering arm. Check and adjust the tightness and fixing of the air compressor, engine and fan belts. Check the brake valve and brake pipeline for air leakage, check the brake fluid level of the hydraulic brake master cylinder, and add brake fluid as required. Check and adjust the free travel of the clutch pedal and brake pedal, and check whether the fixed shaft of the brake pedal and the cotter pin are intact and firm. Check and fasten the connections and bolts of all parts of the vehicle. Check the tire pressure and check whether there is any damage to the tire. Check the battery shell, clear the vent hole of the small cover, and make up the electrolyte. Check whether the lights, wiring and wiper switch are complete and intact. Whether the horn volume tone is normal and whether the various instruments work well.