defrosting to reduce the high voltage generated when removing the jumper wire. Remove the jumper wire in the reverse order of connection, and avoid short circuit at the end of the jumper wire. 1.1.1.1.3.4 Component cleaning To prevent contamination of the entrance, remove dirt deposits, grease, decomposed components or assemblies before removing jumper wires.When reassembling, the parts should be carefully cleaned and then checked and assembled. Cleaning method: Dry cleaning. Remove accumulated dirt with a soft brush. Scrape off the dirt with a piece of metal or wood. Wipe with a rag. 。 Warning: compressed air sometimes has high water content, especially when used in hydraulic system.
Clean dry dust with a vacuum cleaner.This method is commonly used to clean the dust of friction plate. Steam cleaning. Warning: most solvents are hazardous to human body and need to be handled with care.Refer to "safety and health precautions" and manufacturer's safety instructions.Failure to comply with this regulation will cause harm to human body. There are a large number of solvents suitable for component cleaning.Some components such as brake hydraulic components, electrical assembly, etc. must be cleaned by special cleaning agent. Reference: guidelines for solvents, sealants and adhesives. 1.1.1.1.3.5 Calibration of important measuring equipment Warning:
failure to follow the recommendations below may result in personal injury or damage to part s. Some important equipment, such as torque wrench, multimeter, exhaust gas analyzer and test line, must be calibrated regularly according to the manufacturer's instructions. 1.1.1.1.4 Solvents, sealants, adhesives Warning: be careful when using all solvents, sealants and adhesives.Some chemicals or volatile aerosols pose a threat to human health.Please strictly follow the manufacturer's instructions and do not use any substances with safety questions. Warning:
if in doubt about the suitability of any special solvents or sealants, contact the manufacturer for the storage, handling and use of the substance. The "Safety and Health Prevention" sub-section introduces some commonly used chemicals, dangerous goods and their use methods and corresponding safety measures to be taken. 1.1.1.1.5 Road test or roller test bench test In many cases, a road test or a roller test bench test is required on the car. The following will describe the detailed inspection procedures before the test, from the vehicle start and stop, the pre-driving inspection, the inspection during the test to the final inspection after the test is completed.
Only after the completion of all performance tests, the car can not carry out the road test. However, selective testing can be carried out for those items related to the system under inspection. Warning: If the pressure of the brake system is relatively low, the brake pedal stroke is too large, or the hydraulic system is leaking, road test is prohibited. The road test can only be done after finding the problem and correcting it. It is recommended to conduct a pre-inspection test before the road test. Perform functional tests on these systems/lines that will affect the safe driving of the car (such as brakes, lights, 14