Some standard content:
GA468—2004
Normative reference documents
Terms and definitions
Inspection methods/workstations/items/common equipment and toolsMotor vehicle safety inspection process
Inspection methods
Inspection results and review
Qualified signature and document collection
Inspection items, main technical requirements
Appendix A (Normative Appendix)
Appendix B (Normative Appendix)
Appendix C (Normative Appendix)
Appendix D (Informative Appendix)
Appendix E (Informative Appendix)
Appendix F (Informative Appendix)
Appendix G (Informative Appendix)
Appendix H ( Normative Appendix)
Appendix 1 (Normative Appendix)
Appendix 2 (Normative Appendix)
Appendix K (Informative Appendix)
Motor Vehicle Safety Inspection Record Sheet (Manual Inspection Part) Motor Vehicle Safety Inspection Record Sheet (On-line Inspection Part) Double Idle Method
Idle Method
Filter Paper Smoke Method
Measurement of Light Absorption Coefficient with Opaque Smoke Meter Inspection Items and Main Technical Requirements for Two- and Three-wheeled Motor Vehicles Safety Inspection Record Sheet (Manual Inspection Part), Two- and Three-wheeled Motor Vehicles Safety Inspection Record Sheet (On-line Inspection Part) Measurement of Motorcycle Exhaust Pollutants (Idle Method) Y
GA468—2004
The inspection items in Table 1 and Table 2 in Chapter 4, Chapter 6 and Appendix A, Appendix B, Appendix H and Appendix I of this standard are mandatory, and the rest are recommended.
Appendix A, Appendix B, Appendix C, Appendix H, Appendix I, and Appendix J of this standard are normative appendices, and Appendix D, Appendix E, Appendix F, Appendix G, and Appendix K are informative appendices.
This standard is proposed and managed by the Technical Committee for Standardization of Road Traffic Management of the Ministry of Public Security. The responsible drafting unit of this standard is the Traffic Management Science Research Institute of the Ministry of Public Security. The participating drafting units of this standard are: Traffic Patrol Police Corps of Jiangsu Provincial Public Security Department, China People's Public Security University, Traffic Patrol Police Detachment of Wuxi Public Security Bureau, and Wenzhou Jiangxing Automobile Inspection Equipment Factory. The main drafters of this standard are: Wu Yunqiang, Qin Yulin, Chu Guiyang, Wang Shoucai, Jin Longyuan, Zhou Shensheng, Zhan Jianyun, Hu Jiongquan, Zhu Baoquan, Zou Yongliang, Bao Guohua, Huang Yaoming, and Ying Chaoyang. 1 Scope
Motor vehicle safety inspection items and methods,
GA468-2004
This standard specifies the inspection methods/stations/items/common equipment and tools, inspection procedures, inspection methods, inspection results and audits, qualified signatures and data collection requirements for motor vehicle safety inspections. This standard applies to motor vehicle safety inspections. 2 Normative references
The clauses in the following documents become clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB/T3845-1993 Measurement of exhaust pollutants from gasoline vehicles - Rapid method GB/T3846-1993 Measurement of free acceleration smoke density from diesel vehicles - Filter paper smoke density method GB3847-1999 Emission limits and test methods for visible pollutants from exhaust of compression ignition engines and vehicles equipped with compression ignition engines GB4785 Installation regulations for external lighting and signal devices for motor vehicles and trailers GB7258 Technical conditions for motor vehicle operation safety GB11567.1-2001 Requirements for side protection of motor vehicles and trailers GB 11567.2—2001 Requirements for rear lower protection of motor vehicles and trailers GB/T16887-1997 Technical conditions for sleeper buses GB14621-2002 Limits and measurement methods for exhaust pollutants emitted by motorcycles and mopeds (idling method) GB18100 Installation regulations for lighting and light signal devices for two-wheeled motorcycles and mopeds GB18285-2000 Limits and test methods for exhaust pollutants emitted by in-use motor vehicles 3 Terms and definitions
The following terms and definitions apply to this standard. 3.1
Identification of vehicles Check the vehicle's license plate, vehicle type, brand model, color, engine number, VIN code/frame number and main characteristic technical parameters to confirm its uniqueness.
Sideslip
The lateral slippage of the wheel when the vehicle rolls forward due to the deviation in the alignment of the steering wheel during driving. When the wheel passes through the inspection bench, if the slide moves outward, the side slip value is positive, and if it moves inward, the side slip value is negative. 3.3
Chassis operating inspection Qualitatively judge whether the steering system, transmission system and braking system of a motor vehicle meet the operating safety requirements by driving the motor vehicle within a certain distance. 4 Inspection methods/workstations/items/common equipment and tools The inspection methods/workstations/items/common equipment and tools for motor vehicle safety inspection are shown in Table 1, and the inspection methods/workstations/items/common equipment and tools for two- and three-wheeled motor vehicles are shown in Table 2. 1
GA 468—2004
List of inspection methods/workstations/items/common equipment and tools for motor vehicle safety inspection Inspection methods Inspection workstation
Appearance inspection
Off-line inspection
Chassis dynamics
Speedometer
Inspection items
① Vehicle uniqueness identification ② Body appearance ③ Engine compartment ④ Cab (area) ③ Engine operating condition ③ Light signals ① Coach interior ③ Chassis parts? Wheels
① Steering system ② Transmission system ③ Braking system
Speedometer indication error
1. Gasoline vehicles
CO, HC volume concentration values (double rapid method, rapid method) CO, HC and NO exhaust pollutant volume concentration values (acceleration simulation working condition method); measurement
Bench test braking
Performance inspection
In-line inspection
Steering wheel lateral
Side slip
Headlight
Horn sound level
Ditch inspection
Service brake
Road test inspection
Parking brake
Speedometer
Notes:
2. Diesel vehicle
Free acceleration test Exhaust visible pollutant limit: light absorption coefficient (m-1) or smoke value (Rb)
① wheel (axle) weight ② wheel blocking force ③ wheel braking force ① left and right wheel braking force process difference ③ vehicle braking rate ③ parking brake force lateral side slip of steering wheel
1. Headlamp high beam
High beam luminous intensity, high beam up and down offset, high beam left and right offset;
2. Headlamp low beam
Low beam cut-off line corner inflection point position Horn sound level
① Steering system inspection ② Transmission system inspection ③ Driving system inspection ④ Braking system inspection ③ Chassis other parts inspection ④ Electrical circuit inspection Fully emitted mean deceleration (MFDD), braking coordination time, braking stability; or braking distance, braking stability Parking brake performance||t t||Speedometer indication error
1) Vehicles with serious oil or water leakage or other damage to the inspection equipment must be rectified before being put on line for inspection; Common equipment and tools
Tire pressure gauge, tire tread depth gauge, light transmittance meter, steel measuring tape (20m and 5m
one each), steel ruler (50cm), plumb bob, steering wheel steering force-steering angle tester, lighting fixtures
Drum simple speedometer inspection bench
Gasoline vehicle exhaust analyzer
Chassis dynamometer
Filter paper Smoke meter
Opaque smoke meter
Engine tachometer
Roller reaction brake test benchFlat plate
Brake test bench, stopwatch, pedal dynamometer, wheel (axle) weight meter
Automobile side slip test bench
Headlight tester
Vehicle straightening device
Sound level meter
Special hand hammer
Automobile suspension steering system clearance checker
Portable brake performance tester
Fifth wheel tester
Non-contact Touch speedometer
Pedal dynamometer
Fifth wheel instrument, etc.
2) Vehicles whose axle load exceeds the allowable load capacity of the inspection equipment and vehicles with multiple axles that cannot be put on line shall not be put on line for inspection; 3) Vehicles whose speedometer indication error cannot be inspected on the speedometer inspection bench shall be inspected by road test for speedometer indication error; 4) Vehicles with questionable braking performance during bench test or vehicles that cannot be inspected on the brake inspection bench shall be subject to road test; 5) For the specific contents of the inspection items in the appearance inspection, chassis dynamic inspection, and trench inspection, please refer to Table A.1 to Table A.3.2
Inspection method
Off-line inspection
In-line inspection
GA 468—2004
Table 2 List of inspection methods/workstations/items/common equipment and tools for safety inspection of two- and three-wheeled motor vehicles Inspection workstation
Appearance inspection
Speedometer
Exhaust pollutants
Bench test braking
Performance inspection
Headlamp
Horn sound level
Lower part inspection
Inspection items
Common equipment and tools
① Vehicle uniqueness identification ② Appearance ③ Engine operating condition ① Light signal Tire pressure gauge, tire tread depth gauge, signal ③ Safety protection device
① Clutch ② Transmission ③ Transmission ④ Steering system? Braking system Speedometer indication error
1. Motorcycles
CO, HC volume concentration value (idling method); 2. Diesel vehicles
Limits of visible pollutants in free acceleration test of three-wheeled diesel engine vehicles
①Wheel (axle) weight②Wheel braking force
Wheel deviation of two-wheeled motor vehicles
1. Headlamp high beam
High beam luminous intensity, high beam upper and lower offset: 2. Headlamp low beam
Low beam cut-off line corner inflection point position Horn sound level
①Frame ②Electrical circuit fixation ③Related parts Steel tape measure (one each of 20m and 5m), steel straight
rule (50cm), plumb bob, special Hand hammer, lighting equipment
Drum speedometer test bench
Gasoline vehicle exhaust analyzer
Filter paper smoke meter
Roller reaction brake test bench
Flat-plate brake test bench
Wheel (axle) weight meter
Wheel deviation meter
Headlight tester
Sound level meter
Lifter, lifting platform
Note: For the specific contents of the inspection items in the appearance inspection, dynamic inspection and lower inspection, please refer to the relevant contents of Table H.1 in Appendix H and Table A.1 to Table A.3 in Appendix A.
Motor vehicle safety inspection process
Motor vehicle safety inspection process is shown in Figure 1.
Qualified (maintenance recommended)
Vehicle registration
(Login)
Vehicle uniqueness identification
Unqualified
Rectify or transfer to relevant departments for processing
Off-line inspection (excluding
vehicle uniqueness identification)
Unable to conduct on-line inspection temporarily
Adjustment/rectification/repair
On-line inspection (including
ditch inspection)
Unqualified
Motor vehicle safety inspection flow chart
Inspector
Questionable or no
Law on on-line inspection of vehicles
Inspection materials
Collect and archive
Vehicle exits the station
GA 468--2004
6 Inspection methods
The inspected vehicle should be clean, without obvious oil, water or air leakage, the tires should be intact, the air pressure should be normal, there should be no foreign matter in the tire crown pattern, and the engine should be at normal idle speed.
6.1 Off-line inspection
6.1.1 Appearance inspection
During the inspection, the vehicle should be parked in the designated location and the engine should be stopped (except for the inspection of the "engine running condition" item). The main technical requirements of the following inspections should comply with the provisions of Table A.1 in Appendix A. The inspection content and record format are shown in Appendix B. 6.1.1.1 Vehicle uniqueness identification
Check the vehicle's license plate, vehicle type, brand model, color, engine number, VIN code/frame number, and check whether the VIN code/frame number and engine number are suspected of being tampered with. If necessary, check the main characteristic technical parameters such as the vehicle's outer dimensions to confirm whether they are consistent with the motor vehicle registration information.
6.1.1.2 Body Appearance
Check whether the bumper, rearview mirror, lower mirror and other parts are complete and intact; whether the window glass is intact and meets the requirements; whether the body is straight; whether the rear overhang meets the requirements; check whether the cargo compartment has been modified and whether it is securely fixed; check whether the color and characters sprayed on the outer surface of the body meet the relevant regulations.
6.1.1.3 Engine Compartment
Open the engine hood (or flip the cab) and check whether the engine system parts are complete and effective; check whether the battery terminal and wire connection are firm; check whether the electrical wire bundling, fixing, insulation protection, etc. are intact; whether various pipelines are intact and securely fixed; for vehicles using hydraulic brakes (including clutch hydraulic transmission), check the liquid level of the reservoir and whether there is leakage. 6.1.1.4 Cab (area)
Check whether the driver's seat is fixed reliably and whether it can be adjusted forward and backward; check whether the door locks, hinges and front windshield are intact; check whether the windows on both sides of the driver meet the requirements (use a transmittance meter to check the visible light transmittance when necessary); check whether the wipers and washers work normally, and whether the seat belts are complete and effective; check whether the folding cab is fixed reliably; check whether the long-distance bus is installed with a vehicle driving recorder in accordance with regulations, and whether its fixation and connection are safe and reliable. 6.1.1.5 Engine operation
Check whether the engine can start normally Start the engine, check the rapid operation, power charging status, and whether the various instruments and indicators work normally; check whether the engine can return to the idle state during rapid acceleration and when the throttle is released at a high speed, and whether there are abnormal conditions such as "backfire" and "backfire"; check whether the water temperature and oil pressure indications are normal; check whether the engine can be quickly shut down after the ignition switch is turned off; for diesel vehicles, check whether the shutdown device is flexible and effective.
6.1.1.6 Light Signals
At the front of the vehicle, check whether the front position lamp, front/side turn signal lamp, hazard warning flasher and clearance lamp and other front lighting and signal devices are complete and intact, and whether the high-beam and low-beam headlamp conversion functions are normal; at the rear of the vehicle, check whether the rear position lamp, rear turn signal lamp, hazard warning flasher, clearance lamp, brake lamp, rear fog lamp, rear license plate lamp and reversing lamp are complete and intact; check whether the rear reflector, side reflector and side marker lamp are intact; the installation of the above lamps should comply with the provisions of GB4785. For full trailers, the trailer marker lamp should also be checked to see if it is intact. 6.1.1.7 Coach Interior
Check whether the coach seats/berths, handrails and luggage racks are firmly installed, and whether the number and arrangement of coach seats/berths meet the regulations; check whether the coach floor seals well, and whether the passenger passages, emergency exits, compartment lights, door lights, fire extinguishers, special hammers for breaking emergency exit glass, etc. meet the requirements; for sleeper coaches, check whether the seat belts for each berth are complete and effective; for long-distance coaches and tourist coaches, check whether the seat belts for seats without seats or guardrails in front are complete and effective. 6.1.1.8 Chassis Parts
Check whether there are additional fuel tanks, whether the fuel tanks are securely fixed, and whether the fuel tank caps are intact; check whether the fenders and towing hooks are intact, and whether the batteries and battery racks are securely fixed; check whether the air tank drain valve functions effectively; check the type and number of leaf springs 4
GA 468—2004
Comply with the regulations, whether there are cracks and fragments; for trucks and trailers with a factory-determined maximum total mass greater than 3500kg, check whether they are equipped with side and rear lower protection devices, measure the ground clearance and protection range of the lower edge of the side protection device if necessary, check whether the vertical member of the front edge is bent inward, measure the ground clearance and width of the rear lower protection device, check whether it is firm and reliable, and whether the installation complies with the provisions of GB11567.1. For automobile trains, check whether its traction connection device is connected reliably and is equipped with a safety device to prevent the vehicle from being disengaged during driving; for truck trains, check whether the tractor and trailer are equipped with effective side protection devices. 6.1.1.9 Wheels
Check whether the same specification and model tires are installed on both sides of the same axis; check whether the model, grade, load capacity and crown pattern depth of the tire (use a tire pattern depth gauge if necessary) meet the regulations, and whether the tread and sidewall are damaged; check whether the tire bolts and half-axle bolts meet the regulations; check whether the steering wheel is equipped with retreaded tires.
6.1.2 Chassis dynamic inspection
When the vehicle is stationary, the inspector shall inspect the maximum free rotation of the steering wheel; after starting and driving for a certain distance, inspect the clutch, transmission shifting, and steering system; when the vehicle speed is 20km/h, apply partial brakes and then quickly release the pedal to inspect whether there is brake deviation; for air brake vehicles, check the brake pressure after parking. The main technical requirements of the following inspections shall comply with the provisions of Table A.2 in Appendix A. 6.1.2.1 Steering System
Check whether the maximum free rotation of the steering wheel meets the requirements. If necessary, use the steering force-steering angle tester to test; check whether the steering is heavy during driving, whether it has the ability to automatically return to the center after turning; whether the vehicle has the ability to maintain straight driving. 6.1.2.2 Transmission System
Check during the driving process:
a) Whether the clutch is engaged smoothly, whether there is abnormal noise, slipping, shaking, heavy, incomplete separation, etc.; b) Whether the transmission has a gear mark, whether the reverse gear can be locked, whether the gear shift is normal, and whether there is abnormal noise; c) Whether the transmission shaft/chain has abnormal noise and shaking; whether the main reducer and differential of the drive axle have abnormal noise. 6.1.2.3 Braking System
Drive straight at a speed of about 20km/h, lightly support the steering wheel with both hands, press the brake pedal sharply and then release it quickly to preliminarily master the vehicle's braking coordination time, release time and whether there is deviation. For air brake vehicles, press and release the brake pedal several times to reduce the brake pressure to the starting pressure (if the starting pressure is not marked, it shall be 400kPa), and check whether the low pressure alarm device sounds an alarm; for vehicles equipped with spring energy storage brakes, start driving after the alarm sounds, and check whether the spring energy storage brake self-locking device is effective when the air pressure is low. 6.2 On-line inspection
The technical requirements for various on-line inspections shall comply with the relevant provisions of GB7258. The inspection content and record format are shown in Appendix C. Before the vehicle is put on line for inspection, the inspection equipment/instrument shall be checked to ensure that it works properly. 6.2.1 Speedometer
6.2.1.1 Inspection Procedure
a) Drive the vehicle straight onto the inspection platform, and stop the driving wheel in the middle of the speed measuring roller; b) Lower the lift or release the roller locking mechanism, and add a stopper to the front of the non-driving wheel if necessary (use parking brake for front-wheel drive vehicles); c) When the speedometer indicates 40km/h, maintain the speed for 3s to 5s to measure the actual vehicle speed, and the inspection is over; d) Raise the lift or lock the roller, and drive the vehicle off the inspection platform. 6.2.1.2 Precautions
a) For vehicles that cannot be inspected on the speedometer inspection platform, a road test should be conducted; b) After the inspection, the inspector shall not step on the brake pedal suddenly to stop the roller from rotating; c) Do not push standing personnel in front of the vehicle and on both sides of the driving wheels when measuring the speed. 6.2.2 Exhaust pollutant measurement
6.2.2.1 Exhaust pollutant measurement for gasoline vehicles
According to relevant regulations, one of the following three methods shall be used for measurement. 5
GA 468—2004
Double rapid method: Measure in accordance with Appendix C of GB/T3845—1993. For specific measurement procedures, see Appendix D; a
b) Rapid method: Measure in accordance with GB/T3845—1993. For specific measurement procedures, see Appendix E; c) Accelerated simulation method: Measure in accordance with GB18285—2000. 6.2.2.2 Exhaust pollutant measurement for diesel vehicles
According to relevant regulations, one of the following two methods shall be used for measurement. Filter paper smoke method: Measure in accordance with GB/T3846--1993. For specific measurement procedures, please refer to Appendix F; a)
b) Use an opacimeter to measure the light absorption coefficient: measure according to GB18285-2000. For specific measurement procedures, please refer to Appendix G. 6.2.3
Bench Braking Performance Test
6.2.3.1 Preparation before test
The surface of the brake test bench roller (or flat plate) should be clean, free of foreign matter and oil stains, and the surface adhesion coefficient should not be less than 0.75; a)
b) The test auxiliary equipment should be complete;
c) For vehicles with pneumatic brakes, the pressure of the air tank should be able to ensure that the air pressure is still not lower than the starting pressure (if the starting pressure is not marked, it shall be measured as 400kPa) when the braking force test of each axle of the vehicle is completed; for vehicles with hydraulic brakes, the pedal force meter shall be installed on the brake pedal as needed. d)
6.2.3.2 Use the roller reaction test bench to test that the vehicle under test is running straight and in the center, and each axle is parked in turn at the middle position of the wheel (axle) load meter, and parked for the time specified in the instrument manual, and the wheel (axle) static load (axle weight, brake column type) is measured respectively; the vehicle under test is running straight and in the center, and the wheel under test is parked on the roller, and the transmission is placed in neutral; b)
Start the roller motor, start sampling after 2s and maintain a sufficient sampling time (5s), and the braking force is measured. The inspector shall gradually press the brake pedal to the bottom (pneumatic pressure) within 5s to 8s (or at the rate specified by the manufacturer) according to the indication on the display screen.
move the vehicle) or step on the brake pedal force specified in the braking performance test, measure the values of the left and right wheel braking force growth process; and test each axle in turn; for the parking brake axle, tighten the parking brake operating device and measure the parking brake force value; during the braking test, if the tested wheel is locked on the roller but the braking force does not meet the qualified requirements, f) or g) method e)
should be used for inspection;
add sufficient additional mass or a force equivalent to the additional mass to the vehicle (within the rated load of the equipment, the additional mass or f)
force should act symmetrically between the left and right wheels of the axle, ignoring the human axle load). To prevent the vehicle under test from moving backward on the roller reaction brake test bench, a triangular pad can be placed behind the non-test wheel or the whole vehicle can be towed; the braking force can be tested on a flat brake test bench or the braking distance or the fully exerted average g) deceleration and braking coordination time can be tested according to the road test method specified in the standard; the process difference of the test bench test of the braking force is unqualified, but the vehicle has no obvious deviation during the spot braking during the chassis dynamic test. The flat brake test bench should be used or the road test method should be used for inspection. 6.2.3.3 Inspection using a flat brake test bench a) The inspector coasts the vehicle under test at a speed of 5km/h to 10km/h (or the speed recommended by the brake test bench manufacturer), puts the transmission in neutral (for automatic transmission vehicles, it can be in "D" gear), and drives it straight and steadily onto the flat plate; b) When all wheels are on the flat plate, the brakes are pressed sharply to stop the vehicle, and the wheel weight, braking force and other values are measured. 6.2.3.4 Notes
a) For front-axle-driven passenger cars with no more than 9 seats, a flat-plate brake test bench should be used for testing; b) For some vehicles that cannot be tested on a roller-reaction brake test bench, such as four-wheel drive vehicles, dual rear-axle drive vehicles, multi-axle semi-trailers, etc., the braking performance should be tested on a road test. 6.2.4 Steering wheel lateral slip
6.2.4.1 Instrument preparation before testing
a) Check the zero position of the instrument;
b) The side slip test bench should have a tire lateral force release function and work properly. 6
6.2.4.2 Test procedures
GA 468—2004
Drive the vehicle straight and centered close to the side slip test bench, with the steering wheel in the middle position, and pass the side slip test bench smoothly at a speed of 3km/h~5km/h in the driving state, and read the maximum indication. 6.2.4.3 Notes
a) When the vehicle passes the side slip test bench, the steering wheel shall not be turned; b) Braking or parking on the side slip test bench shall not be allowed; the lower part of the side slip test bench slide shall be kept clean to prevent rust or blockage. c)
6.2.5 Headlight
6.2.5.1 Preparation of instruments and vehicles before inspection
The light-receiving surface of the tester shall be clean;
For manual headlight testers, the battery voltage shall be checked to see if it is within the specified range; b)
There shall be no debris in the track to make the instrument easy to move; c)
The headlight shall be clean.
6.2.5.2 Use the automatic headlamp tester to test the vehicle. Drive the vehicle along the guide line in the middle and stop at the specified testing distance. Note that the longitudinal axis of the vehicle should be parallel to the guide line (if not, the vehicle should be parked again or adjusted using a vehicle alignment device); put the transmission in neutral, the vehicle power supply is in charging state, and turn on the high beam of the headlamp; b)
c) send a start measurement command to the automatic headlamp tester, and the instrument automatically searches for the headlamp to be tested and measures its high beam luminous intensity. The angle of the low beam and the offset value of the high beam position;
The headlamp under test is converted to a low beam, and the automatic headlamp tester automatically detects the offset value of the low beam cut-off line angle (or d
midpoint);
Note: When testing a high and low beam integrated lamp, if the low beam of the tested headlamp has no obvious cut-off line, or the angle of the cut-off line (or midpoint) is equal to or higher than the center of the high beam, the headlamp is unqualified and should be replaced with a qualified headlamp before retesting. e) Complete the test of all vehicle headlamps according to the above steps c) and d); f) When testing parallel headlamps (four-lamp headlamps), the lamps adjacent to the tested lamps should be shielded, 6.2.5.3. Inspection with a manual headlamp tester a) The vehicle drives along the guide line to the specified detection distance and stops. Note that the longitudinal axis of the vehicle should be parallel to the guide line. (If not parallel, the vehicle should be parked again, or the vehicle alignment device should be used to align it; or the direction of the light receiving box of the headlamp tester should be adjusted so that the optical center line of the light receiving box is parallel to the longitudinal axis of the vehicle); b) Put the transmission in neutral, the vehicle power supply is in the charging state, turn on the high beam of the headlamp; operate the instrument to align the headlamp tester with the headlamp to be tested; c
Operate the instrument to measure the high beam irradiation position offset value and high beam luminous intensity of the headlamp to be tested; d)
Check the headlamp and switch it to the low beam. Observe the irradiation position of the low beam cut-off line angle (or midpoint) displayed on the projection screen of the manual headlamp tester, and operate the instrument to measure the offset value; Note: When testing the high and low beam integrated lamp, if the low beam of the tested headlamp has no obvious cut-off line, or the irradiation position of the cut-off line angle (or midpoint) is equal to or higher than the irradiation position of the high beam center, the headlamp is unqualified and should be replaced with a qualified headlamp before re-testing. f)
Complete the test of all the headlamps of the vehicle according to the above steps c), d), and e); g) When testing the parallel headlamps (four-lamp system headlamps), the lamps adjacent to the tested lamps should be shielded. 6.2.6 Horn sound level
Place the sound level meter 2m in front of the vehicle to be inspected and 1.2m above the ground, with the microphone pointing to the driver's position of the vehicle to be inspected; a)
b) According to the requirements of the instruction manual, adjust the network switch to "A" weighting and fast gear position; c
The background noise of the test environment should be less than 80dB(A); d) Sound the horn and keep the sound for more than 3s, and read the test data. 7
GA 468--2004
6.2.7 Trench inspection
The main technical requirements should comply with the provisions of Table A.3 in Appendix A. A special hammer should be used to check whether each component is damaged and whether the pipeline is fixed.
6.2.7.1 Preparation of the vehicle to be inspected
The vehicle is parked at the designated position above the trench, and the engine is stopped. 6.2.7.2 Steering system inspectionbzxZ.net
The operator in the cab shall cooperate to turn the steering wheel back and forth to check the tightness, locking and limiting of each component of the steering mechanism: check the fixing of the steering gear (if necessary, use the automobile suspension steering system clearance checker); check whether there are any interference or friction marks/phenomenon during the steering process; check whether each part is damaged and whether the horizontal and vertical tie rods are welded. 6.2.7.3 Transmission system inspection
a) Check whether the transmission and transfer case brackets are connected reliably; b) Check whether the transmission components are connected reliably; whether the transmission shaft and universal joint are installed correctly; whether the intermediate bearing and bracket have cracks and looseness.
6.2.7.4 Driving system inspection
Check whether the steel plate hanging ears and pins are loose; whether the center bolts and U-shaped bolts are tight; check whether there is any axle displacement (if necessary a)
Use a tape measure to measure the difference between the left and right wheelbases); b) Check whether the frame longitudinal beams and cross beams are deformed or damaged, and whether the rivets and bolts are missing or loose; check whether the tie rods and guide rods between the axle and the suspension are loose and displaced. c)
6.2.7.5 Braking system inspection
Check whether the braking system components have been modified without authorization; a)
b) Check whether the master brake cylinder, slave cylinder, brake pipeline, etc. have air or oil leakage, and whether the brake hose is aging; c) Check whether the brake system pipeline and other components have friction and loose fixing. 6.2.7.6 Inspection of electrical circuits
Inspect whether the electrical wires are neatly arranged, bundled, fixed and clamped, and whether the wires are damaged; check whether the joints are firm and have insulating sleeves, and whether insulating sleeves are installed when the wires pass through holes. 6.2.7.7 Inspection of other chassis components
a) Check whether the engine is fixed reliably; b) Check whether the exhaust pipe and muffler are intact and fixed reliably; whether the direction of the exhaust pipe outlet meets the requirements; c) Check whether the fuel tank and fuel pipeline are fixed reliably; whether the fuel pipeline and other components are rubbed and whether the hose is obviously aged.
6.3 Road test
6.3.1 Service brake
When testing the braking performance of a motor vehicle on a road test, it should be carried out on a hard, clean and dry cement or asphalt road surface with a longitudinal slope of no more than 1% and an adhesion coefficient between the tire and the ground of no less than 0.7. The transmission is placed in neutral during the test. 6.3.1.1 For vehicles that cannot be tested on the brake test bench and vehicles whose braking performance is questionable after the bench test, the braking performance shall be determined by the braking distance or the fully developed average deceleration and the braking coordination time. If necessary, a pedal force meter shall be installed to check whether the brake pedal force meets the standard when the specified braking efficiency is reached. 6.3.1.2 On the test road surface, the specified test track edge line shall be drawn in accordance with GB7258. The vehicle under test shall drive along the center line of the test track. When using a portable brake performance tester for testing, after driving to the specified initial speed, put the transmission in neutral, and suddenly apply the brake to stop the vehicle. Measure the fully developed average deceleration (MFDD) and the braking coordination time, and check whether the vehicle has run out of the lane edge line: When using a fifth wheel meter or a non-contact speedometer for testing, after driving to a speed higher than the specified initial speed, put the transmission in neutral, and when sliding to the specified initial speed, suddenly apply the brake to stop the vehicle. Measure the braking distance of the vehicle and check whether the vehicle has run out of the lane edge line. 6.3.1.3 For vehicles that have been tested on the brake test bench, if the braking force balance and front axle braking force meet the requirements, but the braking force of the whole vehicle does not meet the qualified requirements, use a portable brake performance tester to test. For passenger cars with no more than 9 seats and other cars with a total mass of no more than 4500kg, the initial braking speed should be no less than 30km/h. For other cars, car trains and trolleybuses, the initial braking speed should be no less than 20km/h. After emergency braking, measure the MFDD and brake coordination time. 6.3.2 Parking brake
Drive the vehicle up a slope with a slope of 20% (15% for vehicles with a total mass of less than 1.2 times the curb mass) and an adhesion coefficient of no less than 0.7 (concrete or asphalt road surface), keep it stationary in both positive and negative directions, and test whether the parking brake of the vehicle meets the requirements. 6.3.3 Speedometer
For vehicles that cannot be inspected on the speedometer test bench, a fifth wheel tester or other instruments may be used for road test. 6.4 Inspection methods for two- and three-wheeled motor vehicles
The main technical requirements for the following inspections shall comply with the provisions of Appendix H. 6.4.1 Off-line inspection
The inspection content and record format are shown in Appendix 1. The inspection methods for two- and three-wheeled motor vehicles shall refer to the relevant contents of 6.1. Other inspection items are as follows.
6.4.1.1 Appearance inspection
6.4.1.1.1 Appearance
Inspect the front and rear shock absorbers, upper and lower steering plates and steering handlebars of two- and three-wheeled motor vehicles for deformation and cracks; and whether the left and right rearview mirrors are complete and effective.
6.4.1.1.2 Safety protection devices
Inspect the seat cushions, armrests (or straps), feet and mudguards for completeness, firmness and reliability; and check whether the three-wheeled motor vehicles are equipped with safety racks. 6.4.1.2 Dynamic Inspection
When the vehicle is stationary, the inspector turns the steering wheel left and right to check whether the steering wheel rotates flexibly and whether there is any sticking or looseness; start and drive for a distance to check whether the clutch, transmission shifting, steering and throttle operation are normal; check whether the transmission shaft/chain has any abnormal noise or obvious looseness during operation; when the vehicle speed is around 15km/h, apply the brakes to check whether the brakes (hand brake, foot brake, front brake and rear brake) are normal, and check whether there is any oil leakage or sticking. 6.4.2 On-line Inspection
The inspection content and record format are shown in Appendix J. The inspection methods of some items on the line refer to the relevant contents of 6.2. Other inspections are as follows: The inspected motorcycle should be clean, without obvious oil or water leakage, normal tire pressure, no foreign matter in the crown pattern, and normal engine idling speed. 6.4.2.1 Speedometer
Push the tested wheel of the motorcycle onto the front and rear rollers of the speedometer test bench; a)
Straighten the steering handle and start the clamping device to clamp the non-test wheel so that the tested wheel is as vertical as possible to the roller; b)
Start the motor to gradually accelerate. When the motorcycle speedometer/speedometer test bench reaches the specified test speed (30km/h), read the value of c)
speedometer test bench/motorcycle speedometer; d) After the test, turn off the motor, release the wheel clamping device, and push the tested vehicle off the test bench. The speedometer test of three-wheeled motorcycles shall be carried out in accordance with 6.2.1. 6.4.2.2 Motorcycle exhaust pollutants
Perform in accordance with (GB14621--2002. For specific measurement procedures, see Appendix K. 6.4.2.3 Wheel deviation
a) Push the motorcycle to the wheel deviation tester and make the front and rear wheels in the middle position of the corresponding front and rear clamping devices; b)
Make the motorcycle run in a straight line, gently hold the steering handlebar, start the wheel clamping device; measure the front and rear wheel deviation values (mm); c
After the test, release the front and rear wheel clamping devices and push the vehicle to be tested off the wheel deviation tester. 6.4.2.4 Headlight
a) Stop the vehicle at the specified position;
GA 468---2004
b) Keep the headlight facing the tester, and clamp the wheels if there is a clamping device; c) Turn on the headlight tester for testing. During the test, the vehicle should be in a charging state (the gear position is in neutral, and the vehicle with continuously variable transmission should be braked);
d) Record the test data and complete the inspection.
6.4.2.5 Lower inspection
Inspect the frame of two-wheeled and three-wheeled motor vehicles for obvious deformation and damage; check whether the electrical circuit is fixed intact and effective; check whether the exhaust pipe, muffler, fuel tank and fuel pipeline are intact and fixed reliably. 7 Inspection results and review
7.1 The inspection data of each inspection equipment in the automatic inspection line, the inspection results of unqualified items in the appearance inspection, chassis dynamic inspection and trench inspection are printed on the inspection record sheet.
7.2 The chief inspector shall carefully analyze the inspection data, confirm the evaluation results item by item and sign the comments; the evaluation results are divided into three categories: qualified, qualified (maintenance recommended), and unqualified.
7.3 If abnormal conditions are found, the chief inspector shall analyze and deal with them in time. If a misjudgment is found or there is doubt about the inspection results, the inspection shall be repeated. 7.4 The inspection report with maintenance recommendations shall be signed by the inspector. 7.5 For details of the record sheet, please refer to Appendix B, Appendix C, Appendix I and Appendix J. 8.1 The vehicle passes the inspection and goes through the visa procedures. 8.2 The data of the motor vehicle safety inspection results should be properly kept.
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