What is the method for using a hydraulic retarder?

1 Answers
VonSamuel
07/30/25 12:21am
The method for using a hydraulic retarder is: 1. When decelerating, move the manual control switch handle step by step to the desired gear to achieve the deceleration effect. Return the manual control switch handle to the 0 gear to cancel the deceleration command; 2. For constant speed, first reduce the vehicle speed to a safe value. When the desired speed is reached, move the retarder's manual control switch to the constant speed gear (1st gear). A hydraulic retarder is a type of vehicle retarder that reduces speed through a hydraulic device, also known as a hydraulic deceleration device. While using exhaust braking when driving downhill can achieve good braking results, for larger-tonnage mining dump trucks, the effectiveness of exhaust braking is limited and can cause some degree of damage to the engine.
Was this review help?
4
0
Share
More Forum Discussions

Can I transfer to another driving school after registration?

It is possible to change driving schools after registration, but you will need to start learning and taking the exams from Subject 1 again, and all previous test results will be invalid. To transfer to another driving school, you should first go through the withdrawal procedures at your current driving school and then request the school to promptly withdraw your file from the driving management office. After the withdrawal, you can switch to another driving school. However, changing driving schools midway is generally not advisable because when you register, you submit necessary materials such as your ID card to the driving school, meaning your file has already been submitted to the driving management office by the school. Only after the materials are reviewed and approved will the driving school arrange for you to study and take the Subject 1 exam. Below are the three essential conditions for transferring to another driving school: 1. Both driving schools must belong to the same vehicle management office; 2. The original driving school must agree to your transfer; 3. The receiving driving school must agree to accept you.
3
1
Share

What to Do When Engine Oil Pressure is Insufficient?

Solutions for insufficient engine oil pressure: It is recommended not to forcibly start the vehicle. Instead, wait for the vehicle to cool down and immediately check whether the oil level is within the specified range on the dipstick. If the oil level is below the minimum mark or no oil is detected, it is caused by oil shortage. Quickly replenish the engine oil with the correct specification and investigate the cause of the oil shortage. If the oil level is within the specified range, it might be a sensor malfunction. Such issues should be promptly addressed by a repair shop. Engine oil, also known as engine lubricant, serves multiple functions including lubrication, wear reduction, auxiliary cooling, sealing, leak prevention, rust and corrosion protection, as well as shock absorption. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of the lubricant, determining its fundamental properties, while additives compensate for and enhance the performance shortcomings of the base oil, providing additional beneficial characteristics. Additives are an essential part of the lubricant.
7
2
Share

What to Do If One Reversing Radar is Broken?

Since the four sensors of the reversing radar operate independently, if one is damaged, you only need to replace the faulty reversing radar. First, you can check whether the power cord of the radar host is properly connected and if there is current supply. Also, check if the radar host wire is loose. If both are fine, the issue might be a damaged buzzer. Below is a detailed introduction to the reversing radar: The reversing radar typically has four sensors, installed at the rear or both sides of the car, with two on each side. Also known as a reverse parking sensor or parking aid, the reversing radar is a safety assist device used when parking or reversing. It consists of ultrasonic sensors, a controller, and a display (or buzzer). The reversing radar system alerts the driver about surrounding obstacles through sound or a more intuitive display, making reversing and parking safer. When the gear lever is shifted into reverse, the reversing radar automatically activates. When a sensor detects an object behind the vehicle, it emits a beeping sound as a warning. As the vehicle continues to reverse, the frequency of the alarm sound gradually increases, eventually turning into a continuous tone.
20
5
Share

Where is the button to drain the windshield washer fluid?

Lift the car up, and there is usually a reservoir located below the right front wheel. Remove the small tube to drain the fluid. Here is some relevant information about windshield wipers: 1. Operating Principle: The power source of the wiper comes from an electric motor, which is the core of the entire wiper system. The quality requirements for the motor are quite high. Typically, a DC permanent magnet motor is used, and the wiper motor installed on the front windshield is usually integrated with the worm gear mechanism. The worm gear mechanism serves to reduce speed and increase torque. Its output shaft drives a four-bar linkage, which converts continuous rotational motion into a left-right oscillating motion. 2. Basic Introduction: The wiper is a blade structure installed in front of the windshield, consisting of an electric motor, reducer, four-bar linkage, wiper arm spindle, and wiper blade assembly. Its main function is to clear rain, snow, and dust that obstruct the view on the windshield.
4
1
Share

Should I go to a 4S shop or an outside garage for car maintenance?

The second type of maintenance that should be done at a 4S shop is touch-up painting. In fact, the quality of touch-up painting at a 4S shop is far superior to that at outside repair shops. Here is some related information about car maintenance: 1. First maintenance: Some manufacturers set the first maintenance based on time or mileage. The exact timing for the first maintenance should be based on the vehicle's user manual or warranty manual. The first maintenance is very important and is free, so be sure to remember to do it to avoid missing it and affecting the car's three-year warranty. 2. Maintenance items: Main car maintenance items include changing the engine oil, oil filter, transmission oil, spark plugs, air conditioning filter, air filter, brake fluid, etc. However, not all of these need to be changed every time, as it depends on the lifespan of the oil. In addition, maintenance also involves the inspection and upkeep of dozens of items across multiple systems, including the engine, transmission, air conditioning system, steering system, braking system, suspension, body, and tires.
5
1
Share

How to Identify Genuine Automotive Explosion-Proof Film?

Methods to identify genuine automotive explosion-proof film: 1. Observe the color: Explosion-proof films typically use eye-friendly colors such as light green, sky blue, gray, brown, or natural tones. 2. Smell the odor: Inferior films often contain high levels of benzene in their adhesive layers, resulting in a noticeable unpleasant smell. 3. Feel the texture: Genuine safety explosion-proof films are generally at least 2.5mm thick, providing a thick and smooth tactile feel. The functions of automotive explosion-proof film are as follows: 1. Prevent glass cracking and interior fading: Besides harming the driver's skin, prolonged exposure to UV rays can cause glass to crack and car interiors to fade. Explosion-proof film helps extend their lifespan. 2. Thermal insulation: In summer, it blocks external heat, keeping the car interior cooler, while in winter, it retains interior warmth. 3. Enhance anti-violence performance: Automotive explosion-proof film improves vehicle safety during accidents, minimizing the risk of glass shattering and reducing potential harm to passengers. 4. UV protection: The film blocks over 90% of UV rays, preventing skin burns.
5
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.