During the use of tractors, the working capacity of parts or mating components may gradually decrease or be lost due to factors such as loosening, wear, deformation, fatigue, and corrosion, leading to abnormalities in the overall technical condition of the machine. Additionally, working media such as fuel, lubricating oil, cooling water, and hydraulic oil will gradually be consumed, disrupting the normal operating conditions of the tractor and exacerbating the deterioration of its overall technical condition.

In order to keep the tractor in good technical condition and extend its service life, it is necessary to operate, maintain, and adjust the tractor correctly.

How to use large and medium-sized tractors

(I) Engine start-up

1. Preparations before startup

Before use, conducting a thorough and careful inspection of the tractor can eliminate potential faults and effectively prevent accidents from happening.

(1) Check the oil level of the engine oil pan.

(2) Check the oil level of the transmission and rear axle.

(3) Check the oil level of the steering oil tank.

(4) Loosen the flameout cable locking device to allow the flameout cable to loosen, and ensure that the fuel injection pump is in the fuel supply position.

(5) Check the various control levers of the gearbox and the power output control handle to ensure they are in the neutral position, and the hydraulic handle is in the lowered position.

2. Start the engine

Insert the key into the lock, turn it clockwise to start the engine, and return to the "N" gear after starting.

(1) Once the engine starts running, you should release your grip immediately.

(2) The continuous startup time should not exceed 15 seconds. (If it cannot be started within 15 seconds, it should be paused for 2 minutes before restarting. If it cannot be started consecutively for 3 times, the cause should be identified before restarting.).

(3) After starting the engine, let it idle at around 800R/MIN. Only when the water temperature rises above 60℃ and the pressure is above 0.1MPA, can it be put into operation.

(II) Starting of tractor

1. With the engine running at low speed, step on the clutch pedal to disengage the main clutch, and then shift the gearbox lever to the desired gear position.

2. Sound the horn and observe whether there are any obstacles around.

3. Gradually increase the engine speed and slowly release the clutch pedal to ensure a smooth start of the tractor. After starting, release the clutch pedal to prevent clutch slip and wear.

4. Gradually increase the throttle to make the tractor reach the required working speed.

5. It is not allowed to use the method of half-engaging the clutch to reduce the tractor's driving speed. During driving, do not keep your foot on the clutch pedal all the time, so as to avoid accelerating the wear of the release lever, release bearing, and friction plate.

(III) Steering of tractor

When driving a tractor at high speed, remember not to use unilateral braking for sharp turns. When the front wheels make a sharp turn and the safety valve activates, producing a squeaking sound, the steering wheel should be slightly retracted to avoid prolonged overload of the hydraulic steering system.

Before turning or reversing during field work, make sure to raise the working components of the agricultural machinery that are buried in the soil above the ground to avoid damaging the machinery or causing personal injury or death.

When the tractor makes a small turn or turns on soft soil, the steering may be ineffective due to the side slip of the front wheels. To assist in steering, you can depress the brake pedal on the corresponding side while turning the steering wheel.

(IV) Tractor driving

When driving a tractor on the road, use the interlock plate to lock the left and right brake pedals together to prevent unilateral braking that could cause the tractor to deviate or overturn. Generally, you should first reduce the throttle, press down on the clutch pedal, and then, depending on the situation, press down on the brake pedal to bring the tractor to a smooth stop. In case of emergency stopping, press down on both the clutch and brake pedals simultaneously to avoid exacerbating the wear of the brake friction plate or causing the engine to stall. During field work, you can choose to apply unilateral or full braking according to the actual operation situation and needs. When applying unilateral braking, remove the interlock shaft, and drive at low speed to avoid deviation.

(V) Operation of the differential

During the driving or operation of the tractor, if it encounters a stuck situation or unilateral drive slippage, and the tractor cannot move forward, the following steps can be taken to engage the differential, making the left and right drive shafts rigidly connected, so as to drive out of the slippery area at the same speed.

1. Step on the main clutch pedal and operate the gear lever to engage the low gear.

2. Pull the throttle lever to its maximum position.

3. Step on the differential control pedal with your right foot.

4. Release the clutch pedal smoothly to ensure a stable start of the tractor.

5. After driving out of the slippery area, release the differential pedal, and the differential will automatically disengage.

6. When driving normally and making turns, it is strictly prohibited to use the differential lock. Otherwise, it may damage the mechanical parts, accelerate tire wear, and even cause a rollover accident.

(VI) Operation of power output

1. Step on the clutch pedal to the floor, the auxiliary clutch is disengaged, and the power output shaft stops rotating.

2. Press down the power output shaft control lever to engage the power output shaft.

3. Release the clutch pedal slowly to allow the working machinery to start operating.

(VII) Tractor parking and engine shutdown

1. Reduce the throttle to slow down the tractor.

2. Press the clutch pedal, then press the brake pedal. Once the tractor comes to a stop, place all the shift levers in the neutral position.

3. Release the clutch and brake pedals, and reduce the throttle to allow the engine to idle.

4. Pull the flameout lever backward to stop the fuel pump from supplying fuel, causing the engine to immediately flameout. Then push it back to the fuel supply position

5. Rotate the start switch key to the "OFF" position to turn off the power switch.

6. Pull up the parking brake lever.

7. When parking on a slope unavoidably, you should engage the gear (engage forward gear when going uphill and reverse gear when going downhill) to prevent the tractor from suddenly starting, which could cause danger.

8. If the temperature is below 0℃, for tractors that have not used antifreeze, the water tank drain valve must be unscrewed when the engine is idling, and then the engine should be shut down to prevent the cooling water from freezing and cracking the engine block.