How to Collect Evidence for Accidents Caused by High Beams?

Must Transmission Fluid Be Replaced According to the Model?

When it comes to car maintenance, whether it's major or minor servicing, attention is often paid to the renewal and replacement of engine oil and the three filters. However, many car owners tend to overlook transmission maintenance. In fact, transmission fluid also needs to be replaced regularly, except for certain brands that specifically claim to be maintenance-free for life. Long-term neglect of replacement may lead to issues such as gear shifting impact, occasional failure to move, and in severe cases, the generation of debris that can block oil passages and damage the valve body. Compared to engine oil changes, replacing transmission fluid is more complex because the transmission contains numerous fine oil pipes for various hydraulic valves, and the transmission has high requirements for oil quality. It's not necessarily better to choose higher-end products; usually, original or equivalent-grade fluids are sufficient. Overall, similar to how engine oil protects the engine, transmission fluid serves to protect, lubricate, cool, and remove impurities from your car's transmission. Unlike engine oil, which is typically replaced every 5,000 or 10,000 kilometers, transmission fluid must be replaced according to the specific transmission model! Currently, there are three mainstream methods for replacing automatic transmission fluid. The first method is similar to changing engine oil, where the transmission's drain plug is loosened to drain and refill the fluid. The second method involves directly removing the oil pan for draining and refilling. The third method, which is more advanced, uses a circulation machine to replace the automatic transmission fluid. The first two methods are widely used today because they are cost-effective (requiring less fluid) and do not require repair shops to purchase additional equipment. However, they have drawbacks: traditional gravity drainage cannot "completely" replace the transmission fluid, leaving old fluid residues in the valve body, cooling lines, and various components, which can contaminate the new fluid when added directly.

15

4

Share

How to Determine the Number of Pistons in a Brake Caliper?

Brake caliper piston count can be determined visually: The number of circular protrusions on the caliper indicates the pistons. Since caliper pistons are symmetrically arranged on both sides to evenly distribute braking force while increasing it, you only need to count the protrusions on one side and then double that number for the total piston count. Below is more information about brake calipers: 1. A brake caliper is the component that clamps the brake pads when the brake pedal is pressed, creating the braking effect. 2. Generally, more pistons in a car's caliper result in greater, more stable, and smoother braking force.

20

5

Share

Why is the range inconsistent with the fuel gauge?

The car's range is calculated by the onboard computer based on the vehicle's fuel consumption. In real-world conditions, fuel consumption cannot remain exactly the same every second, so it's normal for the range and fuel gauge to show inconsistencies. To restore the accurate range display, you should visit a 4S dealership and have professional technicians perform the necessary operations. This type of issue cannot be resolved by yourself. Below are some common situations that may cause inconsistency between the fuel gauge and range display: 1. When the fuel tank is known to be half full but the gauge suddenly drops to empty, this usually indicates a faulty fuel level sensor (fuel float) that requires cleaning or replacement. 2. If after driving a certain distance, the fuel gauge remains stuck at a certain position without reflecting actual fuel consumption, you should check whether the fuel float is stuck. If so, inspect its flexibility and replace it if necessary.

20

1

Share

How long is the validity period of the driving test?

After passing the subject one test, the validity period is three years, during which all subjects must be completed. Below is more information about the driver's license test: 1. For the first application of a motor vehicle driver's license or an additional permitted driving vehicle, the vehicle management department will issue a driving skill certificate within one day after passing the assessment. 2. The driving skill certificate is valid for three years, and the applicant must complete the subjects two and three tests within this period. 3. If the test validity period is not completed within the effective period, the test results will be canceled. 4. During the validity period of the driving skill certificate, the number of scheduled tests for subjects two and three cannot exceed five times. If the fifth test result is still not qualified, the test needs to be retaken.

18

2

Share

Where is the motor vehicle QR code located on the Baojun 560?

The motor vehicle QR code for the Baojun 560 is located at the lower left corner of the front windshield outside the vehicle. Motor Vehicle QR Code: The motor vehicle QR code contains license identification information such as the issuing authority, unique serial number, license plate number, as well as the vehicle's technical parameters and owner information. It can only be scanned by specialized systems used internally by traffic police. Specific applications of QR codes in vehicle management: Vehicle management involves the administration of vehicle information, safety, inspections, and approval content. As a means of transportation, vehicles and their drivers are constantly in dynamic motion through time and space. QR Code: As a simple, economical, and practical information carrier, QR codes enable management authorities to monitor dynamic objects in real-time and track their trajectories, achieving networked and automated management processes.

13

0

Share

What are the causes of increased axial displacement in steam turbines?

The main causes of increased axial displacement in steam turbines include: (1) Decrease in steam temperature and pressure, overload in the flow passage, and shutdown of regenerative heaters; (2) Increased steam leakage due to wear in the diaphragm shaft seal clearance; (3) Poor steam quality leading to scaling in the flow passage; (4) Water hammer occurrence; (5) Load variations. Generally, the axial thrust of condensing steam turbines increases with load; for extraction or back-pressure turbines, the maximum axial thrust may occur at a certain intermediate load. (6) Damage to thrust bearings; (7) Drop in condenser vacuum; (8) Decrease in grid frequency. Key points for handling increased axial displacement: (1) When increased axial displacement is detected, pay special attention to the temperature of thrust bearing pads and their return oil temperature, monitor turbine vibration, and listen for any abnormal sounds inside the turbine. (2) If axial displacement increases to the alarm value (+1, -1.45 mm), quickly reduce the load to bring it below the alarm value, report to the shift leader to identify the cause and take action, and keep a record. (3) If axial displacement increases to the trip value (+1.2, -1.65 mm) and the protection does not activate, and the thrust bearing pad temperature rises to 95°C, perform an emergency shutdown. (4) If axial displacement increases significantly, vibration rises notably, and bearing return oil temperature increases sharply to 75°C, perform an emergency shutdown. (5) Even if axial displacement has not reached the limit value, but thrust bearing temperature rises significantly and any thrust pad temperature reaches 95°C, and load reduction does not resolve the issue, perform a fault shutdown.

14

3

Share

How to Collect Evidence for Accidents Caused by High Beams?

Must Transmission Fluid Be Replaced According to the Model?

How to Determine the Number of Pistons in a Brake Caliper?

Why is the range inconsistent with the fuel gauge?

How long is the validity period of the driving test?

Where is the motor vehicle QR code located on the Baojun 560?

What are the causes of increased axial displacement in steam turbines?

Is a residence permit required to obtain a driver's license in Urumqi?

How to Remove Grease from Car Glass?

Is the BMW 325li Front-Wheel Drive or Rear-Wheel Drive?

What is the Nürburgring lap time of the BMW X3M?