Instructions for the use of wheeled tractors and key points of driving operation

Wheeled tractors are power equipment used for traction or driving. They are widely used in our daily agricultural production and transportation. In order to better play their role, it is very important to understand and master the precautions for use and driving operation of wheeled tractors.

Precautions for use

YTO-X900

1. Engine idling running-in inspection:

① Carefully check the engine for abnormal noise and abnormal phenomena.

②Check whether there is oil leakage, water leakage, air leakage, and whether the oil pressure indicator is working properly. When any abnormality is found, stop and troubleshoot immediately, and then continue to run-in after troubleshooting.

2. Technical maintenance after running-in

①After parking, release the gear oil of the gearbox and the oil in the hydraulic oil tank while it is hot, and then inject diesel oil, drive the tractor for 1 to 3 minutes with the first and second gears, and raise and lower the suspension mechanism several times for cleaning, then stop and release for washing Diesel, then remove the hydraulic oil pump, wash it in clean diesel, and put it back in place after cleaning. Finally, fill the gearbox and hydraulic oil tank with clean oil according to the specified grades and specifications.

② Turn off the engine, release the oil in the oil pan while it is hot, and clean the oil pan, engine filter and oil filter core. After cleaning, install the machine filter, filter element and oil pan to their original positions, and fill the oil pan with clean oil according to the specified brand specifications.

Driving operation points

YTO-X1304

1. Getting started

①Release the brake claw of the brake pedal to return the brake pedal

② Depress the clutch pedal and turn the gear lever to the first or second gear. If you cannot engage the gear, you can release the clutch pedal and then depress the clutch pedal to engage the gear.

2. Turn

When the tractor encounters a curve or has to go around when driving, the steering operation should be performed. When it is necessary to turn to the left, turn the steering wheel to the left. After turning, immediately return to the steering wheel or steering handle. When making a sharp turn, you should reduce the throttle first, and then start steering after slowing down. Before turning, turn on the turn indicator to the side of the turn.

SJH-brand-tractors

3. Gear selection and shift

Choosing the gear correctly can obtain higher production efficiency and economy, and can extend the service life of the tractor. When choosing a gear, you must consider the changes in the load so that the engine has sufficient power reserve to avoid frequent overloading. When the load is light and the working speed should not be too high, a high gear and small throttle can be used to save fuel.

When the engine sound is heavy, the speed drops, and black smoke is emitted, the gear should be lowered to prevent the engine from overloading. Especially when encountering obstacles, it is absolutely not allowed to rush through the clutch by fiercely engaging the clutch, because this will cause early damage to the clutch disc, and the gear will also hit teeth or damage other parts due to impact load.

Wheeled tractors can tow field machinery and perform various field operations, such as plowing, plowing, seeding, harvesting, etc.; can tow trailers for road transportation operations; and can drive threshers, generators and water pumps for threshing, power generation and Irrigation and drainage operations, etc. Wheeled tractors are easy to operate and widely used. The above is the description of the precautions for the use of wheeled tractors and the key points of driving operation. I hope it can be helpful to everyone.

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Road roller maintenance skills

Road rollers are a relatively common type of road construction machinery. Any mechanical equipment has their service life. In order to increase the working rate of the road roller, individuals or units should maintain the road roller after purchasing the road roller. Specific maintenance skills can refer to the following methods:

Maintenance during the running-in period of the roller

1. Careful work load during the running-in period. Normally, the work load during the running-in period should not exceed 80% of the rated work load. Appropriate workload should be deployed to prevent the overheating symptoms caused by the continuous operation of the machine for a long time.

2. Careful and frequent inspections of the small-sized roller’s instruments are instigated, and the appearance is abnormal. Stop the machine and eliminate it in time. If the cause is not found, the operation should be terminated before the failure is eliminated.

3. Frequently review the lubricating oil, hydraulic oil, coolant, brake fluid and fuel oil (water) level and character, and carefully review the airtightness of the whole machine. During the inspection, it was found that there was too much oil and water, and the reason should be analyzed. At the same time, the lubrication of each lubrication point should be strengthened. It is recommended that grease be added to the lubrication point in each shift during the running-in period (except for special requests).

4. Adhere to the cleanliness of the small roller machine, adjust and tighten loose parts in time to prevent the loose parts from aggravating the wear of the parts or causing the loss of the parts.

5. To stop the running-in period, carry out compulsory maintenance of small roller machines, review and adjust work, and carefully replace the oil.

2Y6X8B static road roller

Maintenance of roller parts

1. Maintenance of roller chain

a. The big gear ring and the driving wheel are fixed by bolts, and need to be inspected and tightened weekly. The drive chain is also used as the final drive part of a small roller. Its transmission load is very heavy and it is subject to the impact of driving and braking, and requires careful maintenance.

b. The sleeve roller chain will stretch when it is working. This is caused by the gap between the sleeve and the roller. Therefore, use a thinner lubricant to fill the gap between the chain plates. On the slack side of the chain, so that the oil can enter the gap between the chain plates, then use cotton yarn to wipe off the excess oil. Do not use butter or high-viscosity oil to lubricate the chain. This will damage the chain and the chain due to adhesion of sand and dust. Sprocket.

c. If the chain is heavily contaminated, it should be disassembled and cleaned with gasoline, soaked in lubricating oil for half an hour, and then taken out to wipe off the excess oil, and continue to be used in the car. In general, it is normal for the chain to extend 1/50 during work. Excessive extension will reduce the number of meshing teeth of the sprocket, causing noise and damaging the chain. The sag value L of the loose edge can be used to reflect the elongation of the chain. The L value is generally set at 2~4% of the center distance between the two sprockets. When the sag is excessive, the sprocket cover should be removed and the tension device should be used to adjust the open side drive gear and chain of the small roller. No. 3 open gear oil can be used lubricating.

2. Maintenance of roller gearbox

a. When cleaning, first unscrew the oil drain plug behind the gearbox, release the lubricating oil in the box, then screw on the oil plug, pour kerosene into the box, start the diesel engine, and let the gearbox run at low speed for 2-3 minutes. Stop and drain the kerosene, clean the oil plug and screw it to the gearbox, and then add new lubricating oil to the mark line of the oil level to the dipstick.

b. No. 20 gear oil for roller gearbox.

c. It is necessary to check and adjust the positioning device of the speed change control mechanism and the reversing mechanism frequently to keep the gears in the proper position to avoid accidents of out of gear.

d. Always pay attention to check the leakage of each seal of the gearbox of the roller. If the seal is damaged, replace it in time. Always check the connecting bolts between the roller gearbox and the frame to avoid loosening and falling off.

LTD212H road roller

Main clutch maintenance

a. In addition to adjusting the operating mechanism of the main clutch at any time, attention should be paid to checking and adjusting the ends of the three release rods in the same plane, and keep a certain gap (0.4 ~ 0.7 mm) between the release bearing and the release bearing.

b. When the main clutch is engaged and disengaged, it should be smooth and gentle. Do not use excessive force. When the clutch is engaged, the clutch pedal must be returned to the original position to make the clutch completely engaged. When the clutch is disengaged, the pedal must be depressed to make the clutch After the disengagement, during manipulation, the clutch must be prevented from being in a half-clutch and half-engaged state, so as not to burn the clutch.

Maintenance of vibrating wheel

The vibrating wheel changes lubricating oil every 1000 hours. Check the lubricating oil of the vibrating wheel at any time for leakage; when checking the oil level, turn the oil filling port to the top and open the oil drain port to make the oil leak until there is no leakage or less leakage.

Side drive maintenance

Due to the low speed, heavy load, and easy to be contaminated by dust, mud and sand, the side drive should always pay attention to check its lubrication. Regularly remove the mud, sand and fine stone dust on the gear and apply a new layer of calcium-based grease. In order to avoid damage accidents.

Battery maintenance

The battery has been used for a long time. For example, due to improper use and improper maintenance, the common electro-hydraulic specific gravity is low, the voltage is high when charging, and the voltage is low when discharging, and white crystalline particles are found on the outside of the board to form the “acid salt” of the battery. As a result, it cannot be used. The acidified battery can be restored to normal after 1-2 times of charging with a smaller current.

Hydraulic system maintenance

Check whether the installation bolts of filters, valves, motors, oil pumps, cylinders, etc. are loose, and whether there is oil leakage at each joint. The hydraulic oil tank is cleaned every six months and the oil is changed. When adding or changing oil, be careful not to mix impurities and dirt into the oil tank. The new oil added or changed must be filtered beforehand.

Maintenance of road roller paint

a. Rust often appears on the surface of the roller. You may say that this is the result of scratching the surface paint. In fact, in addition to common collisions and scratches, the small boulders bounced from the tires on the paint surface while driving will also cause small peeling spots on the paint surface, which will cause small rust spots over time. These small scars are easily overlooked because they are mostly inconspicuous.

b. During the driving of the roller, it is inevitable to encounter rain and snow or pass the muddy water pavement. Some vacancies such as the bottom of the car body and the floor inside the car are easy to accumulate sludge. If not cleaned in time, it will make it wet. Qi can be hidden. Frequent inspections should be carried out. At the same time, the drainage holes of the doors and body parts should be kept unblocked, and the humidity of the covering in the car should be checked to prevent rusting of the floor components.

3. Maintenance skills when the roller is not in use for a long time

1. Perform long-term parking technical maintenance and anti-rust treatment according to the engine operating instructions.

2. Clean the inner and outer surfaces of the roller, and park it in the warehouse when possible. The open-air parking should be in a ventilated place and covered with canvas.

3. Cushion the front frame in parallel and adjust the thickness of the cushion block until the damping block does not cut or deform.

4. Use the central hinged frame device to fix the front and rear frames.

5. Add new oil or grease to each lubrication point of the roller.

With such maintenance, not only will it not be uncomfortable when used again, but it will be easier to use and newer the more you put it.

LT216B

The misunderstanding of road roller maintenance

It is very important for the maintenance of road rollers. However, due to the misunderstanding of maintenance work by technical maintenance personnel, the performance of the road roller is even worse. The following misunderstandings should be avoided.

1. The lubricating oil is changed regularly but not in time

For heavy machinery such as road rollers, due to long-term work under heavy load conditions, the wear of mechanical parts is relatively serious, and lubricating oil is an important factor to ensure that the mechanical wear is reduced to a normal state, and it is also important to ensure the normal operation of the road roller. Factors, the long-term use of the roller will cause a large amount of mechanical wear and tear impurities in the inside of the machine body and the oil pan. In addition, the long-term use of lubricating oil will also contain a lot of impurities if it is not replaced in time. This situation exists. It may cause more serious mechanical wear. Therefore, the damage to the machinery is very serious if the lubricant is not replaced in time.

2. Abnormal operation of bolts and inadequate control of tire pressure during maintenance

Maintenance personnel play a direct role in the maintenance work of the roller. However, in the maintenance process, in order to ensure the stability of the connection between the mechanical components, some maintenance technicians often overtighten the screws or tighten the screws. The tire pressure is overcharged. This starting mentality is also for stability, but the negative impact is more obvious. The mechanical connection is too tight, which will cause the bolts to break and slip. Excessive air pressure will cause excessive tire tension, which is very If it is not conducive to the normal use of the roller, there is a potential safety hazard.

3. Improper temperature control of the water tank of the roller

The temperature control of the water tank of the roller directly affects the performance and durability of the water tank equipment-the cylinder block. However, in the process of project operation, the long-term operation of the machine will inevitably consume a lot of water. Often when adding water to the water tank, the water temperature in the water tank is very high, usually in a boiling state. At this time, due to technology The personnel neglected the water temperature drop, and the sudden addition of cold water caused a sharp drop in the temperature of the water tank, and the sharp change in cold and heat was very unfavorable to the tank and cylinder, greatly reducing its durability.

4. Incorrect use of lubricating grease

Each of the roller equipment has its own special requirements. Among them, the cylinder gasket has high requirements for sealing. But when installing the cylinder head gasket, there are high requirements. When installing, some technicians often apply lubricating grease in order to ensure the smooth installation. When the cylinder head bolts are tightened, due to the extrusion between the objects, part of the lubricating grease will enter the cylinder water channel. The temperature in the cylinder is If it is high, the grease is easy to be carbonized under high temperature for a long time. The carbonization will damage the cylinder head gasket, and then it will cause the cylinder to leak. The consequences are disastrous.

5. The operation of the hydraulic system and the improper selection of oil products

The choice of fuel directly determines the working performance and rate of the engine. The rollers often choose light diesel, and there are also different models of light diesel. The performance of different models varies greatly, but some technicians often fail to consider when choosing. As a result, unsuitable oil was selected, which brought a lot of difficulties to the later maintenance. The hydraulic system is the core system in its work. Here, the control of the system frequency and the control of the mechanical horsepower is the key to the durability of the machine. Improper operation is very detrimental to the long-term operation of the machine.

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What should be paid attention to when replacing hy

The hydraulic pump is one of the important parts of the hydraulic roller. Because of the different use conditions of the roller, the hydraulic parts will inevitably have some small problems, and then the hydraulic pump will be replaced and have problems after the heavy work. After replacing the hydraulic pump, some friends will find that the hydraulic pump they just replaced is still problematic. Today, Hongkai editor will give you a brief introduction to the replacement of hydraulic pump of full hydraulic roller.
Full hydraulic roller
Notes for replacing hydraulic pump of full hydraulic roller:
1. Pay attention to the hydraulic display
After replacing the hydraulic pump of construction machinery, attention should be paid to the hydraulic display, and the pressure display value of the hydraulic circuit should be observed at any time. Check and replace the pressure switch after the hydraulic pump, pay attention to observe the vibration and stability, check whether the hydraulic circuit is abnormal, and solve the problems in time if found.
2. Pay attention to observation in the first three months
After the replacement of hydraulic pump for construction machinery, attention should be paid to the cooperation between the replaced hydraulic pump and various components within three months. Because the newly replaced pump and other parts need a running in period, avoid violent operation as much as possible during operation. In addition, we should also pay attention to the inspection of normal operation conditions and machine parts maintenance, whether the screw is loose, whether the oil temperature is normal, whether there is abnormal increase, whether the hydraulic oil is contaminated rapidly, whether the hydraulic system is weak? Moreover, during the running in period of the hydraulic pump, it is easy to be affected by bubbles and dust, which is easy to produce various problems, which should be solved in time.
3. Pay attention to the change of oil temperature
After replacing the hydraulic pump of construction machinery, do not immediately apply a large load when starting again, especially when it is used in freezing and cold seasons, no load Idling (about 10-30 minutes) is allowed to enter the state before normal loading. In addition, we should also pay attention to the change of oil temperature of high and low polarization, and observe the relationship between oil temperature and external environment temperature. If there is any abnormality, it is easy to judge and solve the problem. After replacing the hydraulic pump of construction machinery, the change of hydraulic oil should be checked regularly, and the deterioration, discoloration and pollution of hydraulic oil should be detected every one or two months, and corresponding solutions should be taken according to the change degree.
4. Pay attention to the sound of hydraulic pump
After replacing the hydraulic pump of construction machinery, pay attention to the sound of the hydraulic pump when it works. Once abnormal phenomena are found, the problem should be found out according to the circuit diagram. Some old hands can directly judge what parts of the hydraulic system have problems through the abnormal sound of the hydraulic system when the hydraulic pump is working, stopped, under high load and high temperature.

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Small roller rolling skills and precautions, super

When the small roller is rolling the road surface, such as asphalt pavement, attention should be paid to the operation, especially the novice friends. When rolling the road surface, the roller should master some rolling skills if it wants to avoid the problems of softening, oil spilling and moving. In order to help everyone to have good strength when rolling the road surface, Hongkai road roller manufacturer will introduce the rolling skills and precautions of small road roller, hoping that you can follow the following skills for rolling.
Small roller
1、 Rolling skills of small roller
1. Initial pressure
1. Before construction, check whether the working machinery is dry, so as to avoid uneven or displacement of asphalt mixture during rolling.
2. The small roller is easy to climb. When rolling up the slope, the speed must be stable when stopping and accelerating, not too fast or too slow. Only when the temperature of asphalt reaches the specified low temperature can it be compacted by vibration.
3. The driving wheel of the roller shall be at the back whether it is rolling up or down the slope.
4. In case of steep slope, the light roller shall be used for pre compaction first, and then the heavy roller or vibrating roller shall be used for compaction.
5. When the temperature is higher than 150 ℃, first use a small roller to static pressure 1-2 times, and control the speed between 1.5 km / h and 2 km / h. When rolling, the driving wheel faces the paver, and when rolling the ramp, the driving wheel is in the low position.
2. Recompression
The re compaction shall be carried out immediately after the initial compaction, and the re compaction temperature shall not be lower than 125 ℃. Firstly, the small roller shall be used for 4 times of rolling, with the rolling speed of 4 km / H-5 km / h, and then the small roller shall be used for 6 times, with the re rolling speed of 3.5 km / h-4.5 km / h. According to the compaction situation, the number of rolling passes shall be increased by 1-2 times.
3. Final pressure
When the mixture is cooled to the specified low temperature, then static preloading is carried out, and vibration compaction is adopted only when the mixture temperature drops to the lower limit (120 ℃). It is carried out immediately after the re compaction. The vibration of small roller is closed, and the speed is controlled at 2km / H ~ 3km / h static pressure for two times, until the road surface is free of wheel trace. When the final compaction is completed, the temperature is not lower than 110 ℃. After completion, stop the vibration first, then place the reversing mechanism in the middle position, the transmission in the neutral position, pull the hand brake control lever, and the internal combustion engine will stop after idling for several minutes.
2、 Precautions for rolling
1. When going downhill, be careful not to change speed suddenly. If the slope is very steep, the use of small rollers can not be solved at one time, at this time, we can choose the heavy roller to complete.
2. It is necessary to check the connection and fixation status of all parts of the small roller, check whether the damping block is in normal compression status, check whether the bearing seat is loose, and replace it in time if the parts are damaged;
3. It is very necessary to clean the small road roller in time. It is necessary to eliminate the sediment on the appearance, do not get the dirt into the air filter, and also need to scrub the dust and oil dirt on the engine and parts.
4. Check the engine oil, fuel, etc. in time and add them to the indicated scale as required.
5. Also check the roller for signs of oil leakage;
6. In addition, lubricating oil should be added in time to check whether the tire is damaged and whether the air vent is blocked. Also check the sprinkler system, joints and filters for damage.
7. When rolling, the vibration frequency should be consistent. For your adjustable vibratory roller, the vibration frequency should be adjusted before operation. It is not allowed to adjust the vibration frequency without vibration.

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