What kind of oil should be added to an air compressor?

How to use the rear wiper switch of the Tiguan L?

The rear wiper switch of the Tiguan is located on the wiper lever on the right side of the steering wheel. It controls the rear wiper by pushing or pulling the lever, along with the front wiper. More details about wipers are as follows: 1. Wipers, also known as windshield wipers, are devices used to wipe away raindrops and dust attached to the vehicle's windshield to improve the driver's visibility and enhance driving safety. Due to legal requirements, almost all cars are equipped with wipers. Rear windows of hatchbacks and SUVs are also fitted with wipers. 2. There are generally two types of wipers: the traditional intermittent type, which is the most common wiper with three to four segments, allowing the driver to adjust according to the rain intensity and visibility conditions; and the rain-sensing type, mostly used in mid-to-high-end models. A good wiper must be heat-resistant, cold-resistant, acid and alkali-resistant, corrosion-resistant, able to fit the windshield, reduce the motor's burden, produce low noise, have strong water-repellency, and be soft enough not to scratch the windshield, ensuring clear vision for the driver. 3. Maintenance personnel recommend replacing the wipers annually to ensure driving safety.

2

0

Share

How Many Meter Models Are There for Concrete Pump Trucks?

Concrete pump trucks come in 7 length specifications: 21 meters, 24 meters, 28 meters, 30 meters, 33 meters, 38 meters, and 35 meters. Different pump truck models are designed based on requirements such as chassis dimensions, mixer efficiency, and boom length. For instance, while maintaining other configurations of a 33-meter pump truck unchanged, optimizing the boom design and adjusting the overall layout can lead to the development of a 35-meter concrete mixing pump truck. Additional information: 1. Boom height: Based on boom height, concrete pump trucks can be categorized into short boom (13-28 meters), long boom (31-47 meters), and ultra-long boom (51-62 meters). Currently, short and long boom models are most common in the market. 2. Theoretical output: Pump trucks can be divided into three types by output capacity: small (44-87 m³/h), medium (90-130 m³/h), and large (150-204 m³/h). 3. Pumping pressure: This refers to the concrete pressure at the pump outlet during operation. Classification includes low pressure (2.5-5.0 MPa), medium pressure (6.1-8.5 MPa), high pressure (10.0-18.0 MPa), and ultra-high pressure (22.0 MPa).

15

0

Share

What documents and certificates are required for new car delivery?

The required documents include the car purchase invoice, compulsory traffic insurance policy, owner's ID card (non-local owners need to provide residence permit), and vehicle qualification certificate. In addition to the above documents, you also need the vehicle purchase tax certificate, engine and chassis number rubbing strips, and original factory photos of the vehicle. Car delivery precautions: 1. Body paint surface: Check the flatness of body steel plates and bumpers, which should not have abnormal protrusions or depressions. Carefully inspect all paint surfaces, especially areas prone to scratches during transportation. The exterior color should be coordinated, uniform, full, flat, and smooth, without pinholes, pits, wrinkles, bubbles, flow marks, or scratches. 2. Interior: Door windows should move up and down freely, reaching the top when raised and the bottom when lowered. Front seats should move forward and backward freely with multiple fixed positions for passengers to choose appropriate seating positions. Door panels and interior trim should be properly installed and not loose when pushed. 3. Tires: Check if tires are complete, if rims are clean and perfect, without protrusions or scratches. Also inquire about or measure tire pressure to ensure normal pressure and equal pressure in all four tires. Additionally, push and pull the upper side of the tire from the side to check for looseness. For disc brakes, inspect if the brake discs are complete without significant wear or dirt.

5

1

Share

Will traffic police check black roof wraps?

Roof wrapping is not illegal as long as it complies with regulations, and traffic police will not check it. According to relevant laws and regulations: Decoration or protective measures for a car's appearance can be appropriately chosen based on individual circumstances. Changes to the body color and frame: An application must be submitted to one of the six branches of the Vehicle Management Office under the Traffic Management Bureau. After vehicle confirmation and approval from the branch, changes can be made. Below is additional information: 1. Film selection: Good car film can filter some glare, reduce the intensity of visible light, making the eyes more comfortable, and help improve the driver's vision, ensuring driving safety. It is recommended that users avoid films with too low transparency. Window films, especially those for the front side windows, should have a transparency of over 85% to be suitable. Regulations also specify that car films must have a light transmittance of over 70% to pass annual inspections. 2. Safety considerations: Some owners worry that black film might affect annual inspections. In fact, as long as colored films or new different-colored paint cover no more than 30% of the surface, there should be no issues. Moreover, traffic police cannot distinguish between black film and panoramic sunroof exterior decorations. However, when selecting car film, besides considering aesthetics and heat insulation, one should also consider the film's transparency and clarity, which are crucial for driving safety.

16

1

Share

At What Voltage Should a Car Battery Be Replaced?

Car batteries should be replaced when their voltage drops below 9.5 volts; otherwise, it may cause difficulty in ignition and prevent the car from starting. Below is additional information: Methods to determine if replacement is needed: Use a battery tester or multimeter to measure the battery voltage and determine if replacement is required. Under normal conditions, a battery's no-load voltage should be around 13 volts, and its full-load voltage should generally not drop below 12 volts. The starting voltage should not be lower than 9.5 volts. When the car battery's load voltage falls below 9.5 volts, ignition difficulties may occur, indicating that the battery needs replacement. The car battery is one of the components of the ignition system, and its performance directly affects whether the car can start successfully. Tips for maintaining the battery: During regular car use, ensure all lights are turned off before shutting down the engine. Also, turn off the air conditioning and audio system before shutting down the engine. The air conditioning system involves the compressor and blower, and the audio system is also a high-power electrical device. If not turned off before shutting down, they will automatically start the next time the car is turned on, placing a heavy burden on the battery and potentially causing damage. Avoid leaving the car parked for extended periods, as the battery will self-discharge over time, shortening its lifespan. If possible, use a dedicated charger to recharge the battery every 1 to 2 months to extend its service life.

17

3

Share

What are the solutions for drowsy driving?

Solutions for drowsy driving are as follows: 1. Listen to the radio instead of music: When drivers play music in the car, they should avoid choosing songs that are too soothing or likely to induce sleepiness after prolonged listening. If you don't dislike the radio, try tuning in, as the hosts' banter and news broadcasts can stimulate thinking and excite brain activity. 2. Chew sugar-free gum: Chewing sugar-free gum, preferably minty or slightly sour, keeps your mouth active and your body engaged. Chewing gum can boost a driver's positive mood and sensations. Many professional drivers use this method to stay awake during long drives. Avoid sugary snacks, as sugar causes blood sugar levels to spike and then drop rapidly, leading to immediate drowsiness—similar to the post-meal sleepiness effect. 3. Apply cooling oil to the nose: Rubbing cooling oil on the nose and inhaling it directly stimulates the brain, helping to ward off sleepiness. Older drivers often prefer this method. 4. Drink energy drinks: Keeping beverages like Red Bull or coffee, which contain caffeine, in the car can help refresh and energize the mind. 5. Drink saline solution: To combat drowsiness during summer highway driving, doctors recommend drinking 500–1000ml of a sugar-salt solution (0.9% salt, 5% sugar) before departure to replenish fluids and electrolytes lost through sweating. Of course, traffic researchers prescribe taking a 15–20 minute nap and walking outside the car after driving for more than four or five hours, rather than just resting for the mandated 45 minutes. Additionally, drivers should rest for over 20 minutes after lunch before hitting the road to effectively prevent post-meal drowsiness.

17

4

Share

What kind of oil should be added to an air compressor?

How to use the rear wiper switch of the Tiguan L?

How Many Meter Models Are There for Concrete Pump Trucks?

What documents and certificates are required for new car delivery?

Will traffic police check black roof wraps?

At What Voltage Should a Car Battery Be Replaced?

What are the solutions for drowsy driving?

What to Do When the Remote Key Fails to Unlock the Car Door?

Will the back seat of a private car be fined for not wearing a seat belt?

How Long Does It Take to Charge a Car After the Battery Dies?

What is the Function of a Car Air Conditioner?