1. Steering Mechanism: The steering mechanism is essential for controlling and changing the direction of the tractor, directly impacting its safety. It's crucial to regularly inspect the steering system to ensure it's in optimal condition. Key inspection points include checking the tightness of components like the tie rod, steering arm, and steering base, as well as ensuring that split pins are properly secured. Also, verify the pre-tightening of the steering shaft by pushing and pulling the steering wheel axially—there should be no noticeable play or shaking. The steering wheel's free play should be between 15 to 30 degrees; if it's too much or too little, adjustments must be made promptly. Lubricate the ball joints with grease immediately. If any parts show cracks or damage, they should be replaced instead of welded. When parking, make sure there are no issues with directional control. If you notice vibration or deviation while driving, stop and repair immediately. If the steering feels spongy or unresponsive, investigate the cause and fix it quickly. 2. Braking System: The braking system is responsible for slowing down and stopping the tractor, playing a vital role in road safety. A thorough check is necessary to ensure it functions correctly. Inspect the brake lines for wear and ensure all connections are secure, especially where they might rub against the frame or bridge. Check the brake fluid level and top it up with the same type if needed. Ensure the brake pedal has a free travel of 10-15 mm; adjust if necessary. If the pedal feels soft or sinks, it may indicate a leak in the system or air in the lines. Address this immediately. Weak braking could be due to excessive drum clearance, hardened brake pads, or improper drum positioning. If the pedal feels spongy, air in the system is likely the cause. Also, check for any signs of dragging or runaway brakes. After driving, touch each wheel hub to ensure they're evenly warm—if one is unusually hot, it may mean the brake is sticking; if cold, the brake may not be functioning properly. 3. Driving System: The driving system acts as the structural framework of the tractor, consisting of the frame, axles, wheels, and suspension. Regular checks are essential to maintain performance and safety. Ensure all fastenings on the frame and axles are secure. Check tire pressure and wear, and address any uneven wear by identifying and fixing the underlying issue. Always maintain proper tire pressure regardless of load or road conditions. Inspect the bearing preload on each wheel hub by gripping the top of the wheel and pulling—there should be no play. When adjusting the front wheels, pay attention to the kingpin clearance and ensure it is properly lubricated. Check for broken leaf springs and apply grease to the pin when necessary. Stand in front of the parked tractor and visually inspect the body alignment and front wheel positioning. 4. Transmission System: The transmission system transfers power from the engine to the drive wheels, enabling movement. Proper maintenance ensures smooth operation. Clutch: Check the free travel of the clutch, which should typically be 25–35 mm. Adjust if necessary. Monitor for slippage, incomplete disengagement, or rough engagement during use. Transmission Gearbox: Look for oil leaks and ensure the gears are intact and functioning properly. Check the temperature after driving—normal temperature allows light contact, but if it’s too hot, the gear oil may be low or degraded, requiring replacement. Listen for unusual noises during operation, which may indicate worn gears, bearings, or misalignment. Low oil levels can also cause noise. Drive Shaft: Inspect the flange bolts at both ends and tighten them if loose. Apply grease to the cross shaft, ensuring all needle bearings are lubricated. Avoid over-greasing the universal joint to prevent damage to the dust cover. Final Drive (Rear Axle): Check for oil leaks and assess the temperature of the rear axle housing. If it's excessively hot, check the oil quantity and quality, and top up or replace as needed. Listen for abnormal noises during driving, which may indicate worn gears or improper bearing preload. To check the total gear clearance, raise the rear wheels, engage the handbrake, and manually rotate the shaft to measure the gap visually or by touch.
Fruit Powder
Fruit powder is made from 6-7 mature and fig or fig dried fruit by raw material processing, squeezing juice, filtering, clarifying, concentrating, spray drying, cooling, packaging and other steps.
Key points of production process:
Selection of raw materials: select 6-7 mature and fresh figs or dried figs. Raw material treatment and pressing for juice: wash the raw materials, add materials according to the proportion of 1kg water plus 1kg fruit, or 1kg dried fruit plus 5kg water, put them into a stainless steel pot, heat them to 85-90 ℃, keep them for 20-30 minutes, then stop heating, stand for 24 hours, and press for juice. Filtration and clarification: it is filtered by a screen filter, and then natural clarification or enzyme clarification. concentrate; Atmospheric pressure concentration and vacuum concentration can be adopted. It is concentrated under normal pressure in a stainless steel double-layer pot, and the heating steam pressure is 2.5kg/cm2. In the concentration process, pay attention to stirring, accelerate water evaporation, prevent coking, and concentrate to make the solid reach 28%. Each concentration should not be fed too much, and the time should be 40 minutes. Vacuum concentration, concentration under reduced pressure and lower temperature. Heating, steam pressure 1.5kg/cm2, temperature 50 ℃.
For Example: Blueberry Juice Powder
In addition to conventional sugar, acid and VC, blueberry fruit is rich in VE, VA, VB, SOD, arbutin, protein, Anthocyanin, edible fiber and mineral elements such as K, Fe, Zn and ca. According to the analysis and determination of 14 varieties of blueberry fruits introduced from the United States, the content of anthocyanin pigment per 100 grams of blueberry fresh fruits is as high as 163 mg, protein 400-700 mg, fat 500-600 mg, carbohydrate 12.3-15.3 mg, vitamin A as high as 81-100 international units, vitamin E 2.7-9.5 micrograms and sod5.39 international units. Vitamins are higher than other fruits. Trace elements are also high, with 220-920 micrograms of calcium, 98-274 micrograms of phosphorus, 114-249 micrograms of magnesium, 2.1-4.3 micrograms of zinc, 7.6-30.0 micrograms of iron, 0.8-1.2 micrograms of germanium and 2.0-3.2 micrograms of copper per gram of fresh fruit.
It is precisely because blueberry fruit is rich in nutrients. It is a nutritional and health fruit with high amino acids, high zinc, high calcium, high iron, high copper and high vitamins. It not only has good nutrition and health care function, but also has the functions of preventing brain nerve aging, strengthening heart, anti-cancer, softening blood vessels, enhancing human immunity and so on.
Health care function
Blueberries can delay memory decline and prevent heart disease, so they are regarded as super fruits. The US daily health news reported that recent research has added a good reputation to super fruit. Eating more blueberries or drinking blueberry juice can help prevent colon cancer.
Blueberries contain a lot of purple components, anthocyanins.
Blueberry fruit can significantly enhance vision and eliminate eye fatigue; Nourish skin; Delaying brain nerve aging; It has therapeutic effect on capillary disease caused by diabetes. Enhance cardiac function; Prevention of Alzheimer's disease and many other medicinal values.
Anthocyanins in blueberry fruit are very powerful antioxidants, which can help prevent the formation of plaque in arteries and a variety of cancers (folic acid prevents cervical cancer, etc.), reduce the possibility of cancer, reduce heart disease and delay aging.
Fruit powder, Fruit Juice Powder, Watermelon Juice Powder Xi'an Tian Guangyuan Biotech Co., Ltd. , https://www.tgybiotech.com
Spray drying: high pressure spray equipment was used to spray the dried fig juice concentrate. The feeding temperature was 50-60 C, the working pressure of the high pressure pump was 180 kg / cm, the dry additive paste powder was added 0.5%, the air inlet temperature was 120 C, and the outlet temperature was 75-78 C. Cooling and packaging: the dried fig powder is cooled quickly, and then packaged and sealed.
The study found that blueberries can play this role because blueberries and other fruits contain a natural compound called pterostilbene, which helps prevent pre cancer damage to the body. Pterostilbene is an Antioxidant and anti-inflammatory agent, which is found in blueberries and blackberries.
