What is the daily maintenance of the car? Is it necessary to do it?

Lead: Thank you for your long-term support to Bian Xiao. Daily maintenance is the basis of maintenance at all levels, which belongs to preventive daily maintenance, with the emphasis on cleaning and inspection. Drivers will check the fastening and sealing of the safety mechanism of each car and the connection of various parts every day before leaving the car, after returning to the field and during driving. After receiving the car, clean, clean, replenish and lubricate the parts that must be lubricated. Its requirements are: the car is clean and tidy; Ensure four clean-ups (oil, air, fuel filter, battery); No leakage (oil, water, electricity, gas); Complete accessories, bolts and nuts are not loose; Keep the tire pressure normal; Reliable braking and flexible steering; Good lubrication; Whether the lighting and speakers are normal, etc.

A, check before the car

Before leaving the car, it is necessary to carry out a cycle maintenance, that is, from the left front of the car (that is, the steering wheel) to the right front of the car, and check the appearance of the car body and various parts of the machine, as shown in Figure 5- 1. The maintenance items of this cycle are as follows:

(1) Check the integrity of the left front of the car: check the paint and window glass of the left front of the car, check the integrity of the door lock and handle, check whether the pedal is firm, and check whether the fastening bolts of the fender and frame are loose; Whether the rearview mirror and seat foot are loose and whether the mirror position is normal; Whether the tire surface is damaged, whether the air pressure is sufficient, and whether the nut is missing or loose; Whether the wheel bearing and steering throttle pin are loose.

(2) Check whether the paint surface, steering system, braking system and leaf spring of the automobile head are in good condition;

1) Check whether the headlights, turn signals, fog lights and windshield are in good condition and clean; Whether the radiator cover, wiper blade and shutter are firm; Whether there are problems with the bumper and towing hook, whether the front, left and right leaf springs are broken or uneven, and whether the central bolt is bent or broken.

2) Shake the steering wheel, and check whether the joint between the rocker shaft nut of the steering gear and the horizontal pull rod is loose, whether the steering gear housing and the frame are firm and whether there is oil leakage.

3) Check whether the ground below the oil pan and radiator leaks oil or water, and whether the journal at both ends of the crankcase leaks oil.

4) Check whether the brake pipe is loose and leaking.

(3) Observing the right front of the vehicle is the same as observing the left front.

(4) Check the connection of transmission device, rotating shaft and hand brake;

Whether the connecting bolts between the transmission housing and the clutch housing are fastened, and whether the second journal and the side cover of the transmission are leaking oil; Whether the brake pedal lever is connected reliably; Whether the bolts and pins connecting all parts of the hand brake disc with the pull rod are fastened; Whether the bolts connecting the transmission flange and the transmission shaft are fastened; Whether the universal joint is oiled and whether the bearing bracket in the middle of the transmission shaft is loose.

(5) Check the right fender, rear wheel cover, reducer, etc. in good condition. Check whether the front fender of the automobile is damaged, whether the hinge buckle of the right fender is damaged, whether the pin falls off, whether the expansion groove of the transmission shaft is loose, whether the connecting bolt between the transmission shaft fork and the reducer flange is loose, whether the oil seal of the reducer is leaking, whether the universal joint is free of oil, and whether the fastening bolt between the differential and the rear axle housing is fastened; Whether the rear brake pipeline is damaged and whether the brake air chamber, brake connecting rod, cross pin and cotter pin are reliable; Whether the connecting bolts between muffler and frame are fastened; Whether the fastening bolt between the gas storage tank and the frame is loose, and whether the bleeder valve is closed freely.

(6) Check the rear tire, wheel cover, fender, etc. : Check whether the fender bolts are loose; Whether the rear wheel cover leaks oil or is loose, and whether the axle bolts are fastened; Whether the tire surface is damaged; Whether the steel loose spring is broken or incomplete, and whether the riding bolt is fastened; Whether the central bolt is broken or bent.

(7) Check the taillights, tailgate and license plate, etc. : Check whether the tailgate hasp hinge, springboard roller frame and trailer hook are in good condition; Whether the rear brake light and turn signal glass are complete; Whether the lamp wire falls off; Whether the rear license plate frame is fastened, whether the mounting bolts and spare tire bolts of the spare tire frame and frame are fastened, and whether the spare tire pressure is sufficient; Whether the rear differential cover leaks oil.

(8) The left rear wheel housing, tire and leaf spring are the same as the right rear wheel housing, tire and leaf spring, so it is not necessary to check the transmission shaft and reducer.

(9) Check the joint between the oil tank and the oil pipe: whether there is oil leakage outside the oil tank, whether the oil tank switch is turned on, and measure the oil storage; Check whether each tubing joint leaks oil; Whether the fastening bolts of the fuel tank bracket and the frame are fastened, and whether the vent hole of the fuel tank cover is unblocked.

(10) Check the battery: check whether the battery pole is fastened, the electrolyte height (the liquid level should be higher than the electrode plate 10~ 15 mm), and whether the vent hole of the battery cover is unblocked; Whether the fastening bolts of the battery holder frame are firmly connected with the frame.

(1 1) Check the engine and its accessories: open the engine cover to clean the engine, check whether the radiator is short of water, whether the water pump and water pipe are leaking, and cover the radiator cover tightly; Check the crankcase oil quantity; Whether the air filter is installed correctly, and whether the tubing joints of carburetor, gasoline pump and oil filter are loose or leaking; Whether the spark plug is loose and whether the high voltage branch line is fastened; Whether the blades are fastened with fastening bolts, and whether the wind belt is tight or not; Whether the lines of generator and regulator are loose; Whether the air compressor is in good condition.

(12) Check all instruments and controls in the cab: Check whether the steering wheel rotates freely too much and whether the loose angle of left and right rotation meets the specified limit; Step on the clutch and detect the free stroke of the clutch; Turn on the ignition switch and observe the situation of each instrument.

(13) Inspection and adjustment items after the engine is started: check whether the engine has abnormal sound and whether all instruments work normally; Try to press the horn, try the size lights, front and rear turn signals, rear brake lights and fog lights; Turn the valve to check the working state of the wiper: when the barometer pointer rises to the specified reading, try to step on the brake pedal and measure the braking performance; After the vehicle is started, the clutch separation performance, steering mechanism efficiency and hand-foot braking efficiency are tested.