1. Steering Mechanism: The steering mechanism is responsible for controlling and changing the direction of the tractor, which directly affects its safety. It's essential to thoroughly inspect this system to ensure it's functioning properly and in good condition. Key points to check: 1. Inspect the tightness of the tie rod, steering arm, and steering base, as well as the locking of the split pin. Any looseness can lead to unsafe operation. 2. Check the pre-tightening of the steering shaft by pushing and pulling the steering wheel along the axis. There should be no noticeable play or shaking. 3. Ensure the steering wheel's free play is between 15 to 30 mm. If it's too much or too little, adjust it promptly to maintain control. 4. Lubricate the ball joints with grease regularly to prevent wear and ensure smooth movement. 5. If any cracks or damage are found in the steering components, do not attempt to weld them. Replace them with new parts immediately. 6. When parking, make sure the steering doesn’t lock up or feel stiff. This could indicate a problem that needs fixing. 7. If you notice vibration, pulling, or difficulty in steering while driving, stop and repair the issue immediately. Continuing to drive under such conditions can be dangerous. 8. If the steering feels unstable or sinks during use, investigate the cause and fix it right away to avoid accidents. 2. Braking System: The braking system is crucial for slowing down and stopping the tractor safely. It plays a vital role in road safety and must be inspected carefully on a regular basis. Important checks to perform: 1. Inspect the brake lines for wear, leaks, and proper connections. Pay special attention to areas where the lines might rub against the frame or other components. 2. Check the level of brake fluid. If it's low, top it up with the same type of fluid to maintain effective braking performance. 3. Ensure the brake pedal has a free travel of 10-15 mm. Adjust if necessary, as too much or too little can affect braking efficiency. 4. If the brake pedal feels soft or sinks, there may be air in the system or a leak in the master cylinder or lines. Repair this immediately to avoid failure. 5. Weak braking could be due to excessive drum clearance, hardened brake linings, or improper adjustment of the brake drum. 6. A spongy feel when pressing the brake pedal usually indicates air in the system. Bleed the brakes to remove the air. 7. Address any issues like brake drag or runaway brakes immediately to prevent overheating and potential failure. 8. After driving, touch the wheel hubs to check their temperature. They should all be roughly the same. If one is significantly hotter, it could mean the brake is dragging. If it’s colder, the brake may not be engaging properly. 3. Chassis System: The chassis serves as the structural framework of the tractor, consisting of the frame, axles, wheels, and suspension. Regular inspection is necessary to ensure stability and safety. Things to check: 1. Make sure the frame and axle are securely fastened. Loose components can lead to instability and damage. 2. Check tire pressure and tread wear. If tires show uneven wear, investigate the cause and correct it. Always maintain proper inflation regardless of load or road conditions. 3. Inspect the preload on the wheel bearings. Grip the top of the wheel and pull it; there should be no noticeable play. 4. When adjusting the front wheels, pay attention to the kingpin clearance and ensure it is properly lubricated. 5. Check for broken leaf springs and apply grease to the spring pins as needed to prevent wear and tear. 6. Visually inspect the tractor after parking to ensure alignment and check the front wheels for proper positioning. 4. Transmission System: The transmission system transfers power from the engine to the drive wheels, enabling the tractor to move effectively. 1. Clutch: a. Check the clutch pedal free travel (typically 25–35 mm). Adjust if necessary to ensure smooth engagement and disengagement. b. Monitor for slippage, incomplete disengagement, or rough operation during use. 2. Gearbox: a. Look for oil leaks and ensure all seals are intact. b. Check for gear misalignment or detachment. Repair any issues promptly to prevent further damage. c. After driving, test the gearbox temperature by touching it lightly. If it's too hot, it may indicate low or degraded gear oil. Add or replace it as needed. d. Listen for unusual noises during driving. These can be caused by worn gears, damaged bearings, or misaligned shafts. Low gear oil can also contribute to noise. 3. Drive Shaft: a. Inspect the flange bolts at both ends of the drive shaft. Tighten them if loose. b. Apply grease to the cross shaft and ensure all needle bearings are lubricated. Be careful not to over-grease the universal joint to avoid damaging the dust cover. 4. Rear Axle: a. Check for oil leaks around the rear axle housing. b. After use, test the temperature of the rear axle housing. If it's excessively hot, check the oil level and quality, and add or replace it if necessary. c. Listen for abnormal noises during driving. Worn main reduction gears or incorrect bearing preload can cause unusual sounds, especially when accelerating. d. To check the rear axle clearance, lift the rear wheels and engage the handbrake. Rotate the axle manually and visually or feel for any excessive play.
Hyaluronic acid is an acidic mucopolysaccharide, which was first isolated from bovine vitreous in 1934 by Meyer, Professor of Ophthalmology at Columbia University. With its unique molecular structure and physicochemical properties, hyaluronic acid shows a variety of important physiological functions in the body, such as lubricating joints, regulating the permeability of blood vessel wall, regulating the diffusion and operation of protein, water and electrolyte, promoting wound healing and so on.
Main purpose
Beauty function
Remove wrinkles
Shaping
Fill face
Hyaluronic Acid Powder, Sepiwhite Msh Powder, Snow White Powder, Alpha Arbutin Powder Xi'an Tian Guangyuan Biotech Co., Ltd. , https://www.tgybiotech.com
Biochemical drugs with high clinical value are widely used in various ophthalmic operations, such as lens implantation, corneal transplantation and anti glaucoma surgery. It can also be used to treat arthritis and accelerate wound healing. When used in cosmetics, it can play a unique role in protecting the skin, keep the skin moist, smooth, delicate, tender and elastic, and play the role of anti wrinkle, anti wrinkle, beauty care and restoring the physiological function of the skin.